From 4c9ab1e693c46f3db9c1e7c0e4251ba37bff5e39 Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Wed, 17 Oct 2018 18:17:38 +0300 Subject: [PATCH 01/40] scripts: Remove check-qerror.sh qerror.h contains leftovers from the now-defunct QError API. There's only a handful of string macros left, and no one is supposed to add anything else. The check-qerror.sh script was used to make sure that all definitions on the qerror.c and qerror.h files were sorted alphabetically. The former was removed three years ago, and the latter is now in a different location, so the script doesn't even work (as a matter of fact the alphabetical order was broken last time someone added a macro -also in 2015- and no one seemed to notice). There's no point in fixing this script so let's just remove it. The rogue macro is also moved to its correct location. Signed-off-by: Alberto Garcia Message-Id: <20181017151738.20299-1-berto@igalia.com> Reviewed-by: Markus Armbruster Signed-off-by: Markus Armbruster --- include/qapi/qmp/qerror.h | 6 +++--- scripts/check-qerror.sh | 22 ---------------------- 2 files changed, 3 insertions(+), 25 deletions(-) delete mode 100755 scripts/check-qerror.sh diff --git a/include/qapi/qmp/qerror.h b/include/qapi/qmp/qerror.h index 145571f618..7c76e24aa7 100644 --- a/include/qapi/qmp/qerror.h +++ b/include/qapi/qmp/qerror.h @@ -79,6 +79,9 @@ #define QERR_QGA_COMMAND_FAILED \ "Guest agent command failed, error was '%s'" +#define QERR_REPLAY_NOT_SUPPORTED \ + "Record/replay feature is not supported for '%s'" + #define QERR_SET_PASSWD_FAILED \ "Could not set password" @@ -88,7 +91,4 @@ #define QERR_UNSUPPORTED \ "this feature or command is not currently supported" -#define QERR_REPLAY_NOT_SUPPORTED \ - "Record/replay feature is not supported for '%s'" - #endif /* QERROR_H */ diff --git a/scripts/check-qerror.sh b/scripts/check-qerror.sh deleted file mode 100755 index af7fbd5249..0000000000 --- a/scripts/check-qerror.sh +++ /dev/null @@ -1,22 +0,0 @@ -#!/bin/sh -# This script verifies that qerror definitions and table entries are -# alphabetically ordered. - -check_order() { - errmsg=$1 - shift - - # sort -C verifies order but does not print a message. sort -c does print a - # message. These options are both in POSIX. - if ! "$@" | sort -C; then - echo "$errmsg" - "$@" | sort -c - exit 1 - fi - return 0 -} - -check_order 'Definitions in qerror.h must be in alphabetical order:' \ - grep '^#define QERR_' qerror.h -check_order 'Entries in qerror.c:qerror_table must be in alphabetical order:' \ - sed -n '/^static.*qerror_table\[\]/,/^};/s/QERR_/&/gp' qerror.c From d7ecf712382486ef0d79fe335f5abb333b44d279 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Thu, 11 Oct 2018 19:12:54 +0200 Subject: [PATCH 02/40] vl: Print error when using incorrect backend for debugcon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When using an incorrect backend for the debugcon, QEMU exits silently without any error indication, which is confusing. Add a message that the character backend is invalid. Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20181011171254.32428-1-philmd@redhat.com> Reviewed-by: Marc-André Lureau Signed-off-by: Markus Armbruster --- vl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/vl.c b/vl.c index 4e25c78bff..61305b5891 100644 --- a/vl.c +++ b/vl.c @@ -2466,6 +2466,7 @@ static int debugcon_parse(const char *devname) QemuOpts *opts; if (!qemu_chr_new_mux_mon("debugcon", devname)) { + error_report("invalid character backend '%s'", devname); exit(1); } opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); From 4b5766488fd3549dc47a75331cf4db62f477536c Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:25 +0200 Subject: [PATCH 03/40] error: Fix use of error_prepend() with &error_fatal, &error_abort MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From include/qapi/error.h: * Pass an existing error to the caller with the message modified: * error_propagate(errp, err); * error_prepend(errp, "Could not frobnicate '%s': ", name); Fei Li pointed out that doing error_propagate() first doesn't work well when @errp is &error_fatal or &error_abort: the error_prepend() is never reached. Since I doubt fixing the documentation will stop people from getting it wrong, introduce error_propagate_prepend(), in the hope that it lures people away from using its constituents in the wrong order. Update the instructions in error.h accordingly. Convert existing error_prepend() next to error_propagate to error_propagate_prepend(). If any of these get reached with &error_fatal or &error_abort, the error messages improve. I didn't check whether that's the case anywhere. Cc: Fei Li Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Eric Blake Message-Id: <20181017082702.5581-2-armbru@redhat.com> --- block.c | 6 +++--- block/qcow2.c | 4 ++-- block/qed.c | 4 ++-- hw/9pfs/9p-local.c | 4 ++-- hw/intc/xics.c | 15 +++++++++------ hw/ppc/pnv_core.c | 4 ++-- hw/ppc/spapr_pci.c | 7 +++---- hw/timer/aspeed_timer.c | 3 +-- hw/usb/bus.c | 5 +++-- hw/vfio/pci.c | 3 +-- include/qapi/error.h | 14 ++++++++++++++ migration/migration.c | 12 ++++++------ util/error.c | 13 +++++++++++++ 13 files changed, 61 insertions(+), 33 deletions(-) diff --git a/block.c b/block.c index 7710b399a3..5d51419d21 100644 --- a/block.c +++ b/block.c @@ -4697,9 +4697,9 @@ bool bdrv_op_is_blocked(BlockDriverState *bs, BlockOpType op, Error **errp) assert((int) op >= 0 && op < BLOCK_OP_TYPE_MAX); if (!QLIST_EMPTY(&bs->op_blockers[op])) { blocker = QLIST_FIRST(&bs->op_blockers[op]); - error_propagate(errp, error_copy(blocker->reason)); - error_prepend(errp, "Node '%s' is busy: ", - bdrv_get_device_or_node_name(bs)); + error_propagate_prepend(errp, error_copy(blocker->reason), + "Node '%s' is busy: ", + bdrv_get_device_or_node_name(bs)); return true; } return false; diff --git a/block/qcow2.c b/block/qcow2.c index 7277feda13..4f8d2fa7bd 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -2208,8 +2208,8 @@ static void coroutine_fn qcow2_co_invalidate_cache(BlockDriverState *bs, qemu_co_mutex_unlock(&s->lock); qobject_unref(options); if (local_err) { - error_propagate(errp, local_err); - error_prepend(errp, "Could not reopen qcow2 layer: "); + error_propagate_prepend(errp, local_err, + "Could not reopen qcow2 layer: "); bs->drv = NULL; return; } else if (ret < 0) { diff --git a/block/qed.c b/block/qed.c index 689ea9d4d5..9377c0b7ad 100644 --- a/block/qed.c +++ b/block/qed.c @@ -1606,8 +1606,8 @@ static void coroutine_fn bdrv_qed_co_invalidate_cache(BlockDriverState *bs, ret = bdrv_qed_do_open(bs, NULL, bs->open_flags, &local_err); qemu_co_mutex_unlock(&s->table_lock); if (local_err) { - error_propagate(errp, local_err); - error_prepend(errp, "Could not reopen qed layer: "); + error_propagate_prepend(errp, local_err, + "Could not reopen qed layer: "); return; } else if (ret < 0) { error_setg_errno(errp, -ret, "Could not reopen qed layer"); diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c index c30f4f26bd..08e673a79c 100644 --- a/hw/9pfs/9p-local.c +++ b/hw/9pfs/9p-local.c @@ -1509,8 +1509,8 @@ static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp) fsdev_throttle_parse_opts(opts, &fse->fst, &local_err); if (local_err) { - error_propagate(errp, local_err); - error_prepend(errp, "invalid throttle configuration: "); + error_propagate_prepend(errp, local_err, + "invalid throttle configuration: "); return -1; } diff --git a/hw/intc/xics.c b/hw/intc/xics.c index c90c893228..406efee064 100644 --- a/hw/intc/xics.c +++ b/hw/intc/xics.c @@ -320,8 +320,9 @@ static void icp_realize(DeviceState *dev, Error **errp) obj = object_property_get_link(OBJECT(dev), ICP_PROP_XICS, &err); if (!obj) { - error_propagate(errp, err); - error_prepend(errp, "required link '" ICP_PROP_XICS "' not found: "); + error_propagate_prepend(errp, err, + "required link '" ICP_PROP_XICS + "' not found: "); return; } @@ -329,8 +330,9 @@ static void icp_realize(DeviceState *dev, Error **errp) obj = object_property_get_link(OBJECT(dev), ICP_PROP_CPU, &err); if (!obj) { - error_propagate(errp, err); - error_prepend(errp, "required link '" ICP_PROP_CPU "' not found: "); + error_propagate_prepend(errp, err, + "required link '" ICP_PROP_CPU + "' not found: "); return; } @@ -624,8 +626,9 @@ static void ics_base_realize(DeviceState *dev, Error **errp) obj = object_property_get_link(OBJECT(dev), ICS_PROP_XICS, &err); if (!obj) { - error_propagate(errp, err); - error_prepend(errp, "required link '" ICS_PROP_XICS "' not found: "); + error_propagate_prepend(errp, err, + "required link '" ICS_PROP_XICS + "' not found: "); return; } ics->xics = XICS_FABRIC(obj); diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c index 9750464bf4..ad1bcc7990 100644 --- a/hw/ppc/pnv_core.c +++ b/hw/ppc/pnv_core.c @@ -148,8 +148,8 @@ static void pnv_core_realize(DeviceState *dev, Error **errp) chip = object_property_get_link(OBJECT(dev), "chip", &local_err); if (!chip) { - error_propagate(errp, local_err); - error_prepend(errp, "required link 'chip' not found: "); + error_propagate_prepend(errp, local_err, + "required link 'chip' not found: "); return; } diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index c2271e6ed4..58afa46204 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1724,16 +1724,15 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) if (smc->legacy_irq_allocation) { irq = spapr_irq_findone(spapr, &local_err); if (local_err) { - error_propagate(errp, local_err); - error_prepend(errp, "can't allocate LSIs: "); + error_propagate_prepend(errp, local_err, + "can't allocate LSIs: "); return; } } spapr_irq_claim(spapr, irq, true, &local_err); if (local_err) { - error_propagate(errp, local_err); - error_prepend(errp, "can't allocate LSIs: "); + error_propagate_prepend(errp, local_err, "can't allocate LSIs: "); return; } diff --git a/hw/timer/aspeed_timer.c b/hw/timer/aspeed_timer.c index 54b400b94a..5c786e5128 100644 --- a/hw/timer/aspeed_timer.c +++ b/hw/timer/aspeed_timer.c @@ -454,8 +454,7 @@ static void aspeed_timer_realize(DeviceState *dev, Error **errp) obj = object_property_get_link(OBJECT(dev), "scu", &err); if (!obj) { - error_propagate(errp, err); - error_prepend(errp, "required link 'scu' not found: "); + error_propagate_prepend(errp, err, "required link 'scu' not found: "); return; } s->scu = ASPEED_SCU(obj); diff --git a/hw/usb/bus.c b/hw/usb/bus.c index 11f7720d71..bf796d67e6 100644 --- a/hw/usb/bus.c +++ b/hw/usb/bus.c @@ -340,8 +340,9 @@ static USBDevice *usb_try_create_simple(USBBus *bus, const char *name, } object_property_set_bool(OBJECT(dev), true, "realized", &err); if (err) { - error_propagate(errp, err); - error_prepend(errp, "Failed to initialize USB device '%s': ", name); + error_propagate_prepend(errp, err, + "Failed to initialize USB device '%s': ", + name); return NULL; } return dev; diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 8b73582d51..4404c28360 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -1283,8 +1283,7 @@ static int vfio_msi_setup(VFIOPCIDevice *vdev, int pos, Error **errp) if (ret == -ENOTSUP) { return 0; } - error_prepend(&err, "msi_init failed: "); - error_propagate(errp, err); + error_propagate_prepend(errp, err, "msi_init failed: "); return ret; } vdev->msi_cap_size = 0xa + (msi_maskbit ? 0xa : 0) + (msi_64bit ? 0x4 : 0); diff --git a/include/qapi/error.h b/include/qapi/error.h index bcb86a79f5..51b63dd4b5 100644 --- a/include/qapi/error.h +++ b/include/qapi/error.h @@ -52,8 +52,12 @@ * where Error **errp is a parameter, by convention the last one. * * Pass an existing error to the caller with the message modified: + * error_propagate_prepend(errp, err); + * + * Avoid * error_propagate(errp, err); * error_prepend(errp, "Could not frobnicate '%s': ", name); + * because this fails to prepend when @errp is &error_fatal. * * Create a new error and pass it to the caller: * error_setg(errp, "situation normal, all fouled up"); @@ -215,6 +219,16 @@ void error_setg_win32_internal(Error **errp, */ void error_propagate(Error **dst_errp, Error *local_err); + +/* + * Propagate error object (if any) with some text prepended. + * Behaves like + * error_prepend(&local_err, fmt, ...); + * error_propagate(dst_errp, local_err); + */ +void error_propagate_prepend(Error **dst_errp, Error *local_err, + const char *fmt, ...); + /* * Prepend some text to @errp's human-readable error message. * The text is made by formatting @fmt, @ap like vprintf(). diff --git a/migration/migration.c b/migration/migration.c index d6ae879dc8..f0f299a773 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1546,9 +1546,9 @@ static GSList *migration_blockers; int migrate_add_blocker(Error *reason, Error **errp) { if (migrate_get_current()->only_migratable) { - error_propagate(errp, error_copy(reason)); - error_prepend(errp, "disallowing migration blocker " - "(--only_migratable) for: "); + error_propagate_prepend(errp, error_copy(reason), + "disallowing migration blocker " + "(--only_migratable) for: "); return -EACCES; } @@ -1557,9 +1557,9 @@ int migrate_add_blocker(Error *reason, Error **errp) return 0; } - error_propagate(errp, error_copy(reason)); - error_prepend(errp, "disallowing migration blocker (migration in " - "progress) for: "); + error_propagate_prepend(errp, error_copy(reason), + "disallowing migration blocker " + "(migration in progress) for: "); return -EBUSY; } diff --git a/util/error.c b/util/error.c index 3efdd69162..b5ccbd8eac 100644 --- a/util/error.c +++ b/util/error.c @@ -292,3 +292,16 @@ void error_propagate(Error **dst_errp, Error *local_err) error_free(local_err); } } + +void error_propagate_prepend(Error **dst_errp, Error *err, + const char *fmt, ...) +{ + va_list ap; + + if (dst_errp && !*dst_errp) { + va_start(ap, fmt); + error_vprepend(&err, fmt, ap); + va_end(ap); + } /* else error is being ignored, don't bother with prepending */ + error_propagate(dst_errp, err); +} From 50beeb680949117017343e593dd7323632a6d872 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:26 +0200 Subject: [PATCH 04/40] Use error_fatal to simplify obvious fatal errors (again) Add a slight improvement of the Coccinelle semantic patch from commit 007b06578ab, and use it to clean up. It leaves dead Error * variables behind, cleaned up manually. Cc: David Gibson Cc: Alexander Graf Cc: Eric Blake Cc: Paolo Bonzini Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Acked-by: David Gibson Message-Id: <20181017082702.5581-3-armbru@redhat.com> --- hw/intc/xics_kvm.c | 7 +------ qemu-nbd.c | 6 +----- scripts/coccinelle/use-error_fatal.cocci | 20 ++++++++++++++++++++ vl.c | 7 +------ 4 files changed, 23 insertions(+), 17 deletions(-) create mode 100644 scripts/coccinelle/use-error_fatal.cocci diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c index 30c3769a20..e8fa9a53ae 100644 --- a/hw/intc/xics_kvm.c +++ b/hw/intc/xics_kvm.c @@ -198,17 +198,12 @@ static void ics_get_kvm_state(ICSState *ics) { uint64_t state; int i; - Error *local_err = NULL; for (i = 0; i < ics->nr_irqs; i++) { ICSIRQState *irq = &ics->irqs[i]; kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES, - i + ics->offset, &state, false, &local_err); - if (local_err) { - error_report_err(local_err); - exit(1); - } + i + ics->offset, &state, false, &error_fatal); irq->server = state & KVM_XICS_DESTINATION_MASK; irq->saved_priority = (state >> KVM_XICS_PRIORITY_SHIFT) diff --git a/qemu-nbd.c b/qemu-nbd.c index e76fe3082a..7874bc973c 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -1002,11 +1002,7 @@ int main(int argc, char **argv) } exp = nbd_export_new(bs, dev_offset, fd_size, nbdflags, nbd_export_closed, - writethrough, NULL, &local_err); - if (!exp) { - error_report_err(local_err); - exit(EXIT_FAILURE); - } + writethrough, NULL, &error_fatal); nbd_export_set_name(exp, export_name); nbd_export_set_description(exp, export_description); diff --git a/scripts/coccinelle/use-error_fatal.cocci b/scripts/coccinelle/use-error_fatal.cocci new file mode 100644 index 0000000000..10fff0aec4 --- /dev/null +++ b/scripts/coccinelle/use-error_fatal.cocci @@ -0,0 +1,20 @@ +@@ +type T; +identifier FUN, RET; +expression list ARGS; +expression ERR, EC, FAIL; +@@ +( +- T RET = FUN(ARGS, &ERR); ++ T RET = FUN(ARGS, &error_fatal); +| +- RET = FUN(ARGS, &ERR); ++ RET = FUN(ARGS, &error_fatal); +| +- FUN(ARGS, &ERR); ++ FUN(ARGS, &error_fatal); +) +- if (FAIL) { +- error_report_err(ERR); +- exit(EC); +- } diff --git a/vl.c b/vl.c index 61305b5891..db83cfe2e9 100644 --- a/vl.c +++ b/vl.c @@ -2002,15 +2002,10 @@ static void select_vgahw(const char *p) static void parse_display_qapi(const char *optarg) { - Error *err = NULL; DisplayOptions *opts; Visitor *v; - v = qobject_input_visitor_new_str(optarg, "type", &err); - if (!v) { - error_report_err(err); - exit(1); - } + v = qobject_input_visitor_new_str(optarg, "type", &error_fatal); visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); From 5197f44584114c40cc5df92e508c2c458d6683ab Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:27 +0200 Subject: [PATCH 05/40] block: Use warn_report() & friends to report warnings Calling error_report() in a function that takes an Error ** argument is suspicious. Convert a few that are actually warnings to warn_report(). While there, split warnings consisting of multiple sentences to conform to conventions spelled out in warn_report()'s contract, and improve a rather useless warning in sheepdog.c. Cc: Kevin Wolf Cc: Ronnie Sahlberg Cc: Paolo Bonzini Cc: Peter Lieven Cc: Liu Yuan Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Message-Id: <20181017082702.5581-4-armbru@redhat.com> Drop changes to "without an explicit read-only=on" warnings, because there's a series removing them pending. Also drop a cc: to a former Sheepdog maintainer. Reviewed-by: Kevin Wolf --- block/iscsi.c | 2 +- block/rbd.c | 4 ++-- block/sheepdog.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/block/iscsi.c b/block/iscsi.c index bb69faf34a..73998c2860 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -1844,7 +1844,7 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags, iscsi_set_timeout(iscsi, timeout); #else if (timeout) { - error_report("iSCSI: ignoring timeout value for libiscsi <1.15.0"); + warn_report("iSCSI: ignoring timeout value for libiscsi <1.15.0"); } #endif diff --git a/block/rbd.c b/block/rbd.c index 014c68d629..e5bf5a146f 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -750,8 +750,8 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags, /* Take care whenever deciding to actually deprecate; once this ability * is removed, we will not be able to open any images with legacy-styled * backing image strings. */ - error_report("RBD options encoded in the filename as keyvalue pairs " - "is deprecated"); + warn_report("RBD options encoded in the filename as keyvalue pairs " + "is deprecated"); } /* Remove the processed options from the QDict (the visitor processes diff --git a/block/sheepdog.c b/block/sheepdog.c index b229a664d9..0125df9d49 100644 --- a/block/sheepdog.c +++ b/block/sheepdog.c @@ -572,7 +572,7 @@ static int connect_to_sdog(BDRVSheepdogState *s, Error **errp) if (s->addr->type == SOCKET_ADDRESS_TYPE_INET && fd >= 0) { int ret = socket_set_nodelay(fd); if (ret < 0) { - error_report("%s", strerror(errno)); + warn_report("can't set TCP_NODELAY: %s", strerror(errno)); } } From 0765691e9744ed966d40a104f9808924578f2e3b Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:28 +0200 Subject: [PATCH 06/40] cpus hw target: Use warn_report() & friends to report warnings MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. Convert a few that are actually warnings to warn_report(). While there, split a warning consisting of multiple sentences to conform to conventions spelled out in warn_report()'s contract. Cc: Alex Bennée Cc: Mark Cave-Ayland Cc: Alex Williamson Cc: Fam Zheng Cc: Wei Huang Cc: David Gibson Signed-off-by: Markus Armbruster Acked-by: David Gibson Reviewed-by: Alex Bennée Message-Id: <20181017082702.5581-5-armbru@redhat.com> --- cpus.c | 8 ++++---- hw/display/cg3.c | 2 +- hw/display/tcx.c | 2 +- hw/misc/ivshmem.c | 4 ++-- hw/net/virtio-net.c | 8 ++++---- hw/virtio/virtio-pci.c | 4 ++-- target/i386/cpu.c | 17 +++++++++-------- target/ppc/translate_init.inc.c | 4 ++-- 8 files changed, 25 insertions(+), 24 deletions(-) diff --git a/cpus.c b/cpus.c index 361678e459..7804071872 100644 --- a/cpus.c +++ b/cpus.c @@ -211,12 +211,12 @@ void qemu_tcg_configure(QemuOpts *opts, Error **errp) error_setg(errp, "No MTTCG when icount is enabled"); } else { #ifndef TARGET_SUPPORTS_MTTCG - error_report("Guest not yet converted to MTTCG - " - "you may get unexpected results"); + warn_report("Guest not yet converted to MTTCG - " + "you may get unexpected results"); #endif if (!check_tcg_memory_orders_compatible()) { - error_report("Guest expects a stronger memory ordering " - "than the host provides"); + warn_report("Guest expects a stronger memory ordering " + "than the host provides"); error_printf("This may cause strange/hard to debug errors\n"); } mttcg_enabled = true; diff --git a/hw/display/cg3.c b/hw/display/cg3.c index 1c199ab369..e50d97e48c 100644 --- a/hw/display/cg3.c +++ b/hw/display/cg3.c @@ -307,7 +307,7 @@ static void cg3_realizefn(DeviceState *dev, Error **errp) ret = load_image_mr(fcode_filename, &s->rom); g_free(fcode_filename); if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) { - error_report("cg3: could not load prom '%s'", CG3_ROM_FILE); + warn_report("cg3: could not load prom '%s'", CG3_ROM_FILE); } } diff --git a/hw/display/tcx.c b/hw/display/tcx.c index b2786ee8d0..66f2459226 100644 --- a/hw/display/tcx.c +++ b/hw/display/tcx.c @@ -823,7 +823,7 @@ static void tcx_realizefn(DeviceState *dev, Error **errp) ret = load_image_mr(fcode_filename, &s->rom); g_free(fcode_filename); if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) { - error_report("tcx: could not load prom '%s'", TCX_ROM_FILE); + warn_report("tcx: could not load prom '%s'", TCX_ROM_FILE); } } diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c index 8cb17b9dd4..f88910e55c 100644 --- a/hw/misc/ivshmem.c +++ b/hw/misc/ivshmem.c @@ -1288,8 +1288,8 @@ static void ivshmem_realize(PCIDevice *dev, Error **errp) IVShmemState *s = IVSHMEM_COMMON(dev); if (!qtest_enabled()) { - error_report("ivshmem is deprecated, please use ivshmem-plain" - " or ivshmem-doorbell instead"); + warn_report("ivshmem is deprecated, please use ivshmem-plain" + " or ivshmem-doorbell instead"); } if (qemu_chr_fe_backend_connected(&s->server_chr) + !!s->shmobj != 1) { diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 4bdd5b8532..385b1a03e9 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -2020,10 +2020,10 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp) if (n->net_conf.tx && strcmp(n->net_conf.tx, "timer") && strcmp(n->net_conf.tx, "bh")) { - error_report("virtio-net: " - "Unknown option tx=%s, valid options: \"timer\" \"bh\"", - n->net_conf.tx); - error_report("Defaulting to \"bh\""); + warn_report("virtio-net: " + "Unknown option tx=%s, valid options: \"timer\" \"bh\"", + n->net_conf.tx); + error_printf("Defaulting to \"bh\""); } n->net_conf.tx_queue_size = MIN(virtio_net_max_tx_queue_size(n), diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 3a01fe90f0..a954799267 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1683,8 +1683,8 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp) if (err) { /* Notice when a system that supports MSIx can't initialize it */ if (err != -ENOTSUP) { - error_report("unable to init msix vectors to %" PRIu32, - proxy->nvectors); + warn_report("unable to init msix vectors to %" PRIu32, + proxy->nvectors); } proxy->nvectors = 0; } diff --git a/target/i386/cpu.c b/target/i386/cpu.c index c88876dfe3..9d4217afba 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5123,14 +5123,15 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp) * NOTE: the following code has to follow qemu_init_vcpu(). Otherwise * cs->nr_threads hasn't be populated yet and the checking is incorrect. */ - if (IS_AMD_CPU(env) && - !(env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_TOPOEXT) && - cs->nr_threads > 1 && !ht_warned) { - error_report("This family of AMD CPU doesn't support " - "hyperthreading(%d). Please configure -smp " - "options properly or try enabling topoext feature.", - cs->nr_threads); - ht_warned = true; + if (IS_AMD_CPU(env) && + !(env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_TOPOEXT) && + cs->nr_threads > 1 && !ht_warned) { + warn_report("This family of AMD CPU doesn't support " + "hyperthreading(%d)", + cs->nr_threads); + error_printf("Please configure -smp options properly" + " or try enabling topoext feature.\n"); + ht_warned = true; } x86_cpu_apic_realize(cpu, &local_err); diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c index 263e63cb03..ee9432eb15 100644 --- a/target/ppc/translate_init.inc.c +++ b/target/ppc/translate_init.inc.c @@ -8381,8 +8381,8 @@ static void getset_compat_deprecated(Object *obj, Visitor *v, const char *name, QNull *null = NULL; if (!qtest_enabled()) { - error_report("CPU 'compat' property is deprecated and has no effect; " - "use max-cpu-compat machine property instead"); + warn_report("CPU 'compat' property is deprecated and has no effect; " + "use max-cpu-compat machine property instead"); } visit_type_null(v, name, &null, NULL); qobject_unref(null); From e1eb292acec5e9806b1afc33f39629e6d0859732 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:29 +0200 Subject: [PATCH 07/40] vfio: Use warn_report() & friends to report warnings The vfio code reports warnings like error_report(WARN_PREFIX "Could not frobnicate", DEV-NAME); where WARN_PREFIX is defined so the message comes out as vfio warning: DEV-NAME: Could not frobnicate This usage predates the introduction of warn_report() & friends in commit 97f40301f1d. It's time to convert to that interface. Since these functions already prefix the message with "warning: ", replace WARN_PREFIX by VFIO_MSG_PREFIX, so the messages come out like warning: vfio DEV-NAME: Could not frobnicate The next commit will replace ERR_PREFIX. Cc: Alex Williamson Signed-off-by: Markus Armbruster Acked-by: Alex Williamson Reviewed-by: Eric Blake Message-Id: <20181017082702.5581-6-armbru@redhat.com> --- hw/vfio/pci.c | 14 +++++++------- hw/vfio/platform.c | 4 ++-- include/hw/vfio/vfio-common.h | 2 +- 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 4404c28360..0c3d245932 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -252,7 +252,7 @@ static void vfio_intx_update(PCIDevice *pdev) vfio_intx_enable_kvm(vdev, &err); if (err) { - error_reportf_err(err, WARN_PREFIX, vdev->vbasedev.name); + warn_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name); } /* Re-enable the interrupt in cased we missed an EOI */ @@ -317,7 +317,7 @@ static int vfio_intx_enable(VFIOPCIDevice *vdev, Error **errp) vfio_intx_enable_kvm(vdev, &err); if (err) { - error_reportf_err(err, WARN_PREFIX, vdev->vbasedev.name); + warn_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name); } vdev->interrupt = VFIO_INT_INTx; @@ -1557,7 +1557,7 @@ static int vfio_msix_setup(VFIOPCIDevice *vdev, int pos, Error **errp) &err); if (ret < 0) { if (ret == -ENOTSUP) { - error_report_err(err); + warn_report_err(err); return 0; } @@ -2590,9 +2590,9 @@ static void vfio_populate_device(VFIOPCIDevice *vdev, Error **errp) } else if (irq_info.count == 1) { vdev->pci_aer = true; } else { - error_report(WARN_PREFIX - "Could not enable error recovery for the device", - vbasedev->name); + warn_report(VFIO_MSG_PREFIX + "Could not enable error recovery for the device", + vbasedev->name); } } @@ -2717,7 +2717,7 @@ static void vfio_req_notifier_handler(void *opaque) qdev_unplug(&vdev->pdev.qdev, &err); if (err) { - error_reportf_err(err, WARN_PREFIX, vdev->vbasedev.name); + warn_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name); } } diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c index 64c1af653d..baf236ae79 100644 --- a/hw/vfio/platform.c +++ b/hw/vfio/platform.c @@ -679,8 +679,8 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp) for (i = 0; i < vbasedev->num_regions; i++) { if (vfio_region_mmap(vdev->regions[i])) { - error_report("%s mmap unsupported. Performance may be slow", - memory_region_name(vdev->regions[i]->mem)); + warn_report("%s mmap unsupported, performance may be slow", + memory_region_name(vdev->regions[i]->mem)); } sysbus_init_mmio(sbdev, vdev->regions[i]->mem); } diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index e46a28910a..1d7630345b 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -32,7 +32,7 @@ #endif #define ERR_PREFIX "vfio error: %s: " -#define WARN_PREFIX "vfio warning: %s: " +#define VFIO_MSG_PREFIX "vfio %s: " enum { VFIO_DEVICE_TYPE_PCI = 0, From c3b8e3e0ed40112367369683da1e3745cf203ac0 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:30 +0200 Subject: [PATCH 08/40] vfio: Clean up error reporting after previous commit The previous commit changed vfio's warning messages from vfio warning: DEV-NAME: Could not frobnicate to warning: vfio DEV-NAME: Could not frobnicate To match this change, change error messages from vfio error: DEV-NAME: On fire to vfio DEV-NAME: On fire Note the loss of "error". If we think marking error messages that way is a good idea, we should mark *all* error messages, i.e. make error_report() print it. Cc: Alex Williamson Signed-off-by: Markus Armbruster Acked-by: Alex Williamson Message-Id: <20181017082702.5581-7-armbru@redhat.com> --- hw/vfio/pci-quirks.c | 4 ++-- hw/vfio/pci.c | 8 ++++---- hw/vfio/platform.c | 2 +- include/hw/vfio/vfio-common.h | 1 - 4 files changed, 7 insertions(+), 8 deletions(-) diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c index 481fd08df7..eae31c74d6 100644 --- a/hw/vfio/pci-quirks.c +++ b/hw/vfio/pci-quirks.c @@ -1670,7 +1670,7 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr) * but also no point in us enabling VGA if disabled in hardware. */ if (!(gmch & 0x2) && !vdev->vga && vfio_populate_vga(vdev, &err)) { - error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name); + error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name); error_report("IGD device %s failed to enable VGA access, " "legacy mode disabled", vdev->vbasedev.name); goto out; @@ -1696,7 +1696,7 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr) ret = vfio_pci_igd_opregion_init(vdev, opregion, &err); if (ret) { error_append_hint(&err, "IGD legacy mode disabled\n"); - error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name); + error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name); goto out; } diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 0c3d245932..5c7bd96984 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -745,7 +745,7 @@ static void vfio_msi_disable_common(VFIOPCIDevice *vdev) vfio_intx_enable(vdev, &err); if (err) { - error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name); + error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name); } } @@ -2196,7 +2196,7 @@ static void vfio_pci_post_reset(VFIOPCIDevice *vdev) vfio_intx_enable(vdev, &err); if (err) { - error_reportf_err(err, ERR_PREFIX, vdev->vbasedev.name); + error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name); } for (nr = 0; nr < PCI_NUM_REGIONS - 1; ++nr) { @@ -2830,7 +2830,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp) if (stat(vdev->vbasedev.sysfsdev, &st) < 0) { error_setg_errno(errp, errno, "no such host device"); - error_prepend(errp, ERR_PREFIX, vdev->vbasedev.sysfsdev); + error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.sysfsdev); return; } @@ -3085,7 +3085,7 @@ out_teardown: vfio_teardown_msi(vdev); vfio_bars_exit(vdev); error: - error_prepend(errp, ERR_PREFIX, vdev->vbasedev.name); + error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name); } static void vfio_instance_finalize(Object *obj) diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c index baf236ae79..398db38f14 100644 --- a/hw/vfio/platform.c +++ b/hw/vfio/platform.c @@ -690,7 +690,7 @@ out: } if (vdev->vbasedev.name) { - error_prepend(errp, ERR_PREFIX, vdev->vbasedev.name); + error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name); } else { error_prepend(errp, "vfio error: "); } diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index 1d7630345b..1b434d02f6 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -31,7 +31,6 @@ #include #endif -#define ERR_PREFIX "vfio error: %s: " #define VFIO_MSG_PREFIX "vfio %s: " enum { From b1b769b0f3fd672886ade16da07b540acafeb1cc Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:31 +0200 Subject: [PATCH 09/40] char: Use error_printf() to print help and such MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. Convert a few that are actually help and such to error_printf(). Improves output of -chardev help from qemu-system-x86_64: -chardev help: Available chardev backend types: serial ... to Available chardev backend types: serial ... Cc: Paolo Bonzini Cc: "Marc-André Lureau" Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20181017082702.5581-8-armbru@redhat.com> --- chardev/char-pty.c | 2 +- chardev/char.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/chardev/char-pty.c b/chardev/char-pty.c index e8d9a53476..f681d637c1 100644 --- a/chardev/char-pty.c +++ b/chardev/char-pty.c @@ -259,7 +259,7 @@ static void char_pty_open(Chardev *chr, qemu_set_nonblock(master_fd); chr->filename = g_strdup_printf("pty:%s", pty_name); - error_report("char device redirected to %s (label %s)", + error_printf("char device redirected to %s (label %s)\n", pty_name, chr->label); s = PTY_CHARDEV(chr); diff --git a/chardev/char.c b/chardev/char.c index e115166995..7f07a1bfbd 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -634,7 +634,7 @@ Chardev *qemu_chr_new_from_opts(QemuOpts *opts, Error **errp) chardev_name_foreach(help_string_append, str); - error_report("Available chardev backend types: %s", str->str); + error_printf("Available chardev backend types: %s\n", str->str); g_string_free(str, true); return NULL; } From 1245402e3c9be20200dcc469805f4156d93381e2 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:32 +0200 Subject: [PATCH 10/40] 9pfs: Fix CLI parsing crash on error Calling error_report() in a function that takes an Error ** argument is suspicious. 9p-handle.c's handle_parse_opts() does that, and then fails without setting an error. Wrong. Its caller crashes when it tries to report the error: $ qemu-system-x86_64 -nodefaults -fsdev id=foo,fsdriver=handle qemu-system-x86_64: -fsdev id=foo,fsdriver=handle: warning: handle backend is deprecated qemu-system-x86_64: -fsdev id=foo,fsdriver=handle: fsdev: No path specified Segmentation fault (core dumped) Screwed up when commit 91cda4e8f37 (v2.12.0) converted the function to Error. Fix by calling error_setg() instead of error_report(). Fixes: 91cda4e8f372602795e3a2f4bd2e3adaf9f82255 Cc: Greg Kurz Signed-off-by: Markus Armbruster Acked-by: Greg Kurz Reviewed-by: Eric Blake Message-Id: <20181017082702.5581-9-armbru@redhat.com> --- hw/9pfs/9p-handle.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/hw/9pfs/9p-handle.c b/hw/9pfs/9p-handle.c index f3641dbe4a..3465b1ef30 100644 --- a/hw/9pfs/9p-handle.c +++ b/hw/9pfs/9p-handle.c @@ -19,6 +19,7 @@ #include #include #include +#include "qapi/error.h" #include "qemu/xattr.h" #include "qemu/cutils.h" #include "qemu/error-report.h" @@ -655,12 +656,13 @@ static int handle_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp) warn_report("handle backend is deprecated"); if (sec_model) { - error_report("Invalid argument security_model specified with handle fsdriver"); + error_setg(errp, + "Invalid argument security_model specified with handle fsdriver"); return -1; } if (!path) { - error_report("fsdev: No path specified"); + error_setg(errp, "fsdev: No path specified"); return -1; } fse->path = g_strdup(path); From d319e05d6f24350272e7f600a43d0c0091924512 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:33 +0200 Subject: [PATCH 11/40] pc: Fix machine property nvdimm-persistence error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. pc.c's pc_machine_set_nvdimm_persistence() does that, and then exit()s. Wrong. Attempting to set machine property nvdimm-persistence to a bad value instantly kills the VM: $ qemu-system-x86_64 -nodefaults -S -display none -qmp stdio {"QMP": {"version": {"qemu": {"micro": 50, "minor": 0, "major": 3}, "package": "v3.0.0-837-gc5e4e49258"}, "capabilities": []}} {"execute": "qmp_capabilities"} {"return": {}} {"execute": "qom-set", "arguments": {"path": "/machine", "property": "nvdimm-persistence", "value": "instadeath"}} -machine nvdimm-persistence=instadeath: unsupported option $ echo $? 1 Broken when commit 11c39b5cd96 (v3.0.0) replaced error_propagate(); return by error_report(); exit() instead of error_setg(); return. Fix that. Fixes: 11c39b5cd966ddc067a1ca0c5392ec9b666c45b7 Cc: "Michael S. Tsirkin" Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-10-armbru@redhat.com> --- hw/i386/pc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index cd5029c149..eab8572f2a 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -2209,8 +2209,9 @@ static void pc_machine_set_nvdimm_persistence(Object *obj, const char *value, else if (strcmp(value, "mem-ctrl") == 0) nvdimm_state->persistence = 2; else { - error_report("-machine nvdimm-persistence=%s: unsupported option", value); - exit(EXIT_FAILURE); + error_setg(errp, "-machine nvdimm-persistence=%s: unsupported option", + value); + return; } g_free(nvdimm_state->persistence_string); From 11ab69d6e7a81c35f109a399a39d56e777f41d8a Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:34 +0200 Subject: [PATCH 12/40] ioapic: Fix error handling in realize() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. ioapic_realize() does that, and then exit()s. Currently mostly harmless, as the device cannot be hot-plugged. Fixes: 20fd4b7b6d9282fe0cb83601f1821f31bd257458 Cc: Peter Xu Signed-off-by: Markus Armbruster Reviewed-by: Peter Xu Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-11-armbru@redhat.com> --- hw/intc/ioapic.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/intc/ioapic.c b/hw/intc/ioapic.c index b6896ac4ce..4e529729b4 100644 --- a/hw/intc/ioapic.c +++ b/hw/intc/ioapic.c @@ -21,7 +21,7 @@ */ #include "qemu/osdep.h" -#include "qemu/error-report.h" +#include "qapi/error.h" #include "monitor/monitor.h" #include "hw/hw.h" #include "hw/i386/pc.h" @@ -393,9 +393,9 @@ static void ioapic_realize(DeviceState *dev, Error **errp) IOAPICCommonState *s = IOAPIC_COMMON(dev); if (s->version != 0x11 && s->version != 0x20) { - error_report("IOAPIC only supports version 0x11 or 0x20 " - "(default: 0x%x).", IOAPIC_VER_DEF); - exit(1); + error_setg(errp, "IOAPIC only supports version 0x11 or 0x20 " + "(default: 0x%x).", IOAPIC_VER_DEF); + return; } memory_region_init_io(&s->io_memory, OBJECT(s), &ioapic_io_ops, s, From 1028283c60e6e35911bb80b959a533b4af1b8b65 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:35 +0200 Subject: [PATCH 13/40] smbios: Clean up error handling in smbios_add() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. smbios_entry_add() does that, and then exit()s. It also passes &error_fatal to qemu_opts_validate(). Both wrong, but currently harmless, as its only caller passes &error_fatal. Messed up in commit 1007a37e208. Clean it up. Cc: Paolo Bonzini Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Acked-by: Paolo Bonzini Message-Id: <20181017082702.5581-12-armbru@redhat.com> --- hw/smbios/smbios.c | 90 +++++++++++++++++++++++++++++++--------------- 1 file changed, 62 insertions(+), 28 deletions(-) diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index a27e54b2fa..920939454e 100644 --- a/hw/smbios/smbios.c +++ b/hw/smbios/smbios.c @@ -950,6 +950,7 @@ static void save_opt_list(size_t *ndest, const char ***dest, void smbios_entry_add(QemuOpts *opts, Error **errp) { + Error *err = NULL; const char *val; assert(!smbios_immutable); @@ -960,12 +961,16 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) int size; struct smbios_table *table; /* legacy mode only */ - qemu_opts_validate(opts, qemu_smbios_file_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_file_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } size = get_image_size(val); if (size == -1 || size < sizeof(struct smbios_structure_header)) { - error_report("Cannot read SMBIOS file %s", val); - exit(1); + error_setg(errp, "Cannot read SMBIOS file %s", val); + return; } /* @@ -978,14 +983,15 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) smbios_tables_len); if (load_image(val, (uint8_t *)header) != size) { - error_report("Failed to load SMBIOS file %s", val); - exit(1); + error_setg(errp, "Failed to load SMBIOS file %s", val); + return; } if (test_bit(header->type, have_fields_bitmap)) { - error_report("can't load type %d struct, fields already specified!", - header->type); - exit(1); + error_setg(errp, + "can't load type %d struct, fields already specified!", + header->type); + return; } set_bit(header->type, have_binfile_bitmap); @@ -1030,19 +1036,23 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) unsigned long type = strtoul(val, NULL, 0); if (type > SMBIOS_MAX_TYPE) { - error_report("out of range!"); - exit(1); + error_setg(errp, "out of range!"); + return; } if (test_bit(type, have_binfile_bitmap)) { - error_report("can't add fields, binary file already loaded!"); - exit(1); + error_setg(errp, "can't add fields, binary file already loaded!"); + return; } set_bit(type, have_fields_bitmap); switch (type) { case 0: - qemu_opts_validate(opts, qemu_smbios_type0_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type0_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type0.vendor, opts, "vendor"); save_opt(&type0.version, opts, "version"); save_opt(&type0.date, opts, "date"); @@ -1051,14 +1061,18 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) val = qemu_opt_get(opts, "release"); if (val) { if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { - error_report("Invalid release"); - exit(1); + error_setg(errp, "Invalid release"); + return; } type0.have_major_minor = true; } return; case 1: - qemu_opts_validate(opts, qemu_smbios_type1_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type1_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type1.manufacturer, opts, "manufacturer"); save_opt(&type1.product, opts, "product"); save_opt(&type1.version, opts, "version"); @@ -1069,14 +1083,18 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) val = qemu_opt_get(opts, "uuid"); if (val) { if (qemu_uuid_parse(val, &qemu_uuid) != 0) { - error_report("Invalid UUID"); - exit(1); + error_setg(errp, "Invalid UUID"); + return; } qemu_uuid_set = true; } return; case 2: - qemu_opts_validate(opts, qemu_smbios_type2_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type2_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type2.manufacturer, opts, "manufacturer"); save_opt(&type2.product, opts, "product"); save_opt(&type2.version, opts, "version"); @@ -1085,7 +1103,11 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) save_opt(&type2.location, opts, "location"); return; case 3: - qemu_opts_validate(opts, qemu_smbios_type3_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type3_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type3.manufacturer, opts, "manufacturer"); save_opt(&type3.version, opts, "version"); save_opt(&type3.serial, opts, "serial"); @@ -1093,7 +1115,11 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) save_opt(&type3.sku, opts, "sku"); return; case 4: - qemu_opts_validate(opts, qemu_smbios_type4_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type4_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type4.sock_pfx, opts, "sock_pfx"); save_opt(&type4.manufacturer, opts, "manufacturer"); save_opt(&type4.version, opts, "version"); @@ -1102,11 +1128,19 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) save_opt(&type4.part, opts, "part"); return; case 11: - qemu_opts_validate(opts, qemu_smbios_type11_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type11_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt_list(&type11.nvalues, &type11.values, opts, "value"); return; case 17: - qemu_opts_validate(opts, qemu_smbios_type17_opts, &error_fatal); + qemu_opts_validate(opts, qemu_smbios_type17_opts, &err); + if (err) { + error_propagate(errp, err); + return; + } save_opt(&type17.loc_pfx, opts, "loc_pfx"); save_opt(&type17.bank, opts, "bank"); save_opt(&type17.manufacturer, opts, "manufacturer"); @@ -1116,12 +1150,12 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) type17.speed = qemu_opt_get_number(opts, "speed", 0); return; default: - error_report("Don't know how to build fields for SMBIOS type %ld", - type); - exit(1); + error_setg(errp, + "Don't know how to build fields for SMBIOS type %ld", + type); + return; } } - error_report("Must specify type= or file="); - exit(1); + error_setg(errp, "Must specify type= or file="); } From 4dd32b3dda3ebc3ac9dd6b951a40a3e4f2f0fd47 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:36 +0200 Subject: [PATCH 14/40] migration: Fix !replay_can_snapshot() error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. save_snapshot() and load_snapshot() do that, and then fail without setting an error. Wrong. The HMP commands survive this unscathed, since hmp_handle_error() does nothing when no error has been set. Callers main() (on behalf of -loadvm) and replay_vmstate_init() crash, but I'm not sure the error is possible there. Screwed up when commit 377b21ccea1 (v2.12.0) added incorrect error handling right next to correct examples. Fix by calling error_setg() instead of error_report(). Fixes: 377b21ccea1755a8b0dae822c29567c58dda6939 Cc: Paolo Bonzini Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-13-armbru@redhat.com> --- migration/savevm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/migration/savevm.c b/migration/savevm.c index 2d10e45582..5f8eb38676 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2414,8 +2414,8 @@ int save_snapshot(const char *name, Error **errp) AioContext *aio_context; if (!replay_can_snapshot()) { - error_report("Record/replay does not allow making snapshot " - "right now. Try once more later."); + error_setg(errp, "Record/replay does not allow making snapshot " + "right now. Try once more later."); return ret; } @@ -2611,8 +2611,8 @@ int load_snapshot(const char *name, Error **errp) MigrationIncomingState *mis = migration_incoming_get_current(); if (!replay_can_snapshot()) { - error_report("Record/replay does not allow loading snapshot " - "right now. Try once more later."); + error_setg(errp, "Record/replay does not allow loading snapshot " + "right now. Try once more later."); return -EINVAL; } From 007e5f8782673d8e476398baaa5b4813741e970b Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:37 +0200 Subject: [PATCH 15/40] l2tpv3: Improve -netdev/netdev_add/-net/... error reporting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When -netdev l2tpv3 fails, it first reports a specific error, then a generic one, like this: $ qemu-system-x86_64 -netdev l2tpv3,id=foo,src=,dst=,txsession=1 qemu-system-x86_64: -netdev l2tpv3,id=foo,src=,dst=,txsession=1: l2tpv3_open : could not resolve src, errno = Name or service not known qemu-system-x86_64: Device 'l2tpv3' could not be initialized With the command line, the messages go to stderr. In HMP, they go to the monitor. In QMP, the second one becomes the error reply, and the first one goes to stderr. Convert net_init_tap() to Error. This suppresses the unwanted second message, and makes the specific error the QMP error reply. Cc: Jason Wang Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-14-armbru@redhat.com> --- net/l2tpv3.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/net/l2tpv3.c b/net/l2tpv3.c index 6745b78990..81db24dc8c 100644 --- a/net/l2tpv3.c +++ b/net/l2tpv3.c @@ -28,6 +28,7 @@ #include #include "net/net.h" #include "clients.h" +#include "qapi/error.h" #include "qemu-common.h" #include "qemu/error-report.h" #include "qemu/option.h" @@ -528,7 +529,6 @@ int net_init_l2tpv3(const Netdev *netdev, const char *name, NetClientState *peer, Error **errp) { - /* FIXME error_setg(errp, ...) on failure */ const NetdevL2TPv3Options *l2tpv3; NetL2TPV3State *s; NetClientState *nc; @@ -555,7 +555,7 @@ int net_init_l2tpv3(const Netdev *netdev, } if ((l2tpv3->has_offset) && (l2tpv3->offset > 256)) { - error_report("l2tpv3_open : offset must be less than 256 bytes"); + error_setg(errp, "offset must be less than 256 bytes"); goto outerr; } @@ -563,6 +563,8 @@ int net_init_l2tpv3(const Netdev *netdev, if (l2tpv3->has_rxcookie && l2tpv3->has_txcookie) { s->cookie = true; } else { + error_setg(errp, + "require both 'rxcookie' and 'txcookie' or neither"); goto outerr; } } else { @@ -578,7 +580,7 @@ int net_init_l2tpv3(const Netdev *netdev, if (l2tpv3->has_udp && l2tpv3->udp) { s->udp = true; if (!(l2tpv3->has_srcport && l2tpv3->has_dstport)) { - error_report("l2tpv3_open : need both src and dst port for udp"); + error_setg(errp, "need both src and dst port for udp"); goto outerr; } else { srcport = l2tpv3->srcport; @@ -639,20 +641,19 @@ int net_init_l2tpv3(const Netdev *netdev, gairet = getaddrinfo(l2tpv3->src, srcport, &hints, &result); if ((gairet != 0) || (result == NULL)) { - error_report( - "l2tpv3_open : could not resolve src, errno = %s", - gai_strerror(gairet) - ); + error_setg(errp, "could not resolve src, errno = %s", + gai_strerror(gairet)); goto outerr; } fd = socket(result->ai_family, result->ai_socktype, result->ai_protocol); if (fd == -1) { fd = -errno; - error_report("l2tpv3_open : socket creation failed, errno = %d", -fd); + error_setg(errp, "socket creation failed, errno = %d", + -fd); goto outerr; } if (bind(fd, (struct sockaddr *) result->ai_addr, result->ai_addrlen)) { - error_report("l2tpv3_open : could not bind socket err=%i", errno); + error_setg(errp, "could not bind socket err=%i", errno); goto outerr; } if (result) { @@ -677,10 +678,8 @@ int net_init_l2tpv3(const Netdev *netdev, result = NULL; gairet = getaddrinfo(l2tpv3->dst, dstport, &hints, &result); if ((gairet != 0) || (result == NULL)) { - error_report( - "l2tpv3_open : could not resolve dst, error = %s", - gai_strerror(gairet) - ); + error_setg(errp, "could not resolve dst, error = %s", + gai_strerror(gairet)); goto outerr; } From 8c42dbe3956ac3eb8b1db18b941867936ce54b08 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:38 +0200 Subject: [PATCH 16/40] net/socket: Fix invalid socket type error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. net_socket_fd_init() does that, and then fails without setting an error. Wrong. I didn't analyze how exactly this can break. A caller that reports the error on failure would crash. Broken when commit c37f0bb1d0d (v2.11.0) converted the function to Error. Fix by calling error_setg() instead of error_report(). Fixes: c37f0bb1d0d24e3a6b5f4659bb305913dcb798a6 Cc: Jason Wang Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-15-armbru@redhat.com> --- net/socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/socket.c b/net/socket.c index 6917fbcbf5..90ef3517be 100644 --- a/net/socket.c +++ b/net/socket.c @@ -453,8 +453,8 @@ static NetSocketState *net_socket_fd_init(NetClientState *peer, case SOCK_STREAM: return net_socket_fd_init_stream(peer, model, name, fd, is_connected); default: - error_report("socket type=%d for fd=%d must be either" - " SOCK_DGRAM or SOCK_STREAM", so_type, fd); + error_setg(errp, "socket type=%d for fd=%d must be either" + " SOCK_DGRAM or SOCK_STREAM", so_type, fd); closesocket(fd); } return NULL; From a22528b918c7d29795129b5a64c4cb44bb57a44d Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:39 +0200 Subject: [PATCH 17/40] numa: Fix QMP command set-numa-node error handling Calling error_report() in a function that takes an Error ** argument is suspicious. parse_numa_node() does that, and then exit()s. It also passes &error_fatal to machine_set_cpu_numa_node(). Both wrong. Attempting to configure numa when the machine doesn't support it kills the VM: $ qemu-system-x86_64 -nodefaults -S -display none -M none -preconfig -qmp stdio {"QMP": {"version": {"qemu": {"micro": 50, "minor": 0, "major": 3}, "package": "v3.0.0-837-gc5e4e49258"}, "capabilities": []}} {"execute": "qmp_capabilities"} {"return": {}} {"execute": "set-numa-node", "arguments": {"type": "node"}} NUMA is not supported by this machine-type $ echo $? 1 Messed up when commit 64c2a8f6d3f and 7c88e65d9e9 (v2.10.0) added incorrect error handling right next to correct examples. Latent bug until commit f3be67812c2 (v3.0.0) made it accessible via QMP. Fairly harmless in practice, because it's limited to RUN_STATE_PRECONFIG. The fix is obvious: replace error_report(); exit() by error_setg(); return. This affects parse_numa_node()'s other caller numa_complete_configuration(): since it ignores errors, the "NUMA is not supported by this machine-type" is now ignored, too. But that error is as unexpected there as any other. Change it to abort on error instead. Fixes: f3be67812c226162f86ce92634bd913714445420 Cc: Igor Mammedov Signed-off-by: Markus Armbruster Reviewed-by: Igor Mammedov Message-Id: <20181017082702.5581-16-armbru@redhat.com> --- numa.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/numa.c b/numa.c index 81542d4ebb..1d7c49ad43 100644 --- a/numa.c +++ b/numa.c @@ -60,6 +60,7 @@ NodeInfo numa_info[MAX_NODES]; static void parse_numa_node(MachineState *ms, NumaNodeOptions *node, Error **errp) { + Error *err = NULL; uint16_t nodenr; uint16List *cpus = NULL; MachineClass *mc = MACHINE_GET_CLASS(ms); @@ -82,8 +83,8 @@ static void parse_numa_node(MachineState *ms, NumaNodeOptions *node, } if (!mc->cpu_index_to_instance_props || !mc->get_default_cpu_node_id) { - error_report("NUMA is not supported by this machine-type"); - exit(1); + error_setg(errp, "NUMA is not supported by this machine-type"); + return; } for (cpus = node->cpus; cpus; cpus = cpus->next) { CpuInstanceProperties props; @@ -97,7 +98,11 @@ static void parse_numa_node(MachineState *ms, NumaNodeOptions *node, props = mc->cpu_index_to_instance_props(ms, cpus->value); props.node_id = nodenr; props.has_node_id = true; - machine_set_cpu_numa_node(ms, &props, &error_fatal); + machine_set_cpu_numa_node(ms, &props, &err); + if (err) { + error_propagate(errp, err); + return; + } } if (node->has_mem && node->has_memdev) { @@ -367,7 +372,7 @@ void numa_complete_configuration(MachineState *ms) if (ms->ram_slots > 0 && nb_numa_nodes == 0 && mc->auto_enable_numa_with_memhp) { NumaNodeOptions node = { }; - parse_numa_node(ms, &node, NULL); + parse_numa_node(ms, &node, &error_abort); } assert(max_numa_nodeid <= MAX_NODES); From fff4c9c32595e71bca3d1a89beb0781a5be2201b Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:40 +0200 Subject: [PATCH 18/40] xen/pt: Fix incomplete conversion to realize() The conversion of "xen-pci-passthrough" to realize() (commit 5a11d0f7549, v2.6.0) neglected to convert the xen_pt_config_init() error path. If xen_pt_config_init() fails, xen_pt_realize() reports the error, then returns success without completing its job. I don't know the exact impact, but it can't be good. Belatedly convert the error path. Fixes: 5a11d0f7549e24a10e178a9dc8ff5e698031d9a6 Cc: Stefano Stabellini Cc: Anthony Perard Signed-off-by: Markus Armbruster Acked-by: Anthony PERARD Message-Id: <20181017082702.5581-17-armbru@redhat.com> --- hw/xen/xen_pt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c index e5a6eff44f..f1f3a3727c 100644 --- a/hw/xen/xen_pt.c +++ b/hw/xen/xen_pt.c @@ -830,7 +830,7 @@ static void xen_pt_realize(PCIDevice *d, Error **errp) xen_pt_config_init(s, &err); if (err) { error_append_hint(&err, "PCI Config space initialisation failed"); - error_report_err(err); + error_propagate(errp, err); rc = -1; goto err_out; } From 6548459769e5e8b8d23a90ce0adffd067b240059 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:41 +0200 Subject: [PATCH 19/40] seccomp: Clean up error reporting in parse_sandbox() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. parse_sandbox() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Cc: Eduardo Otubo Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Acked-by: Eduardo Otubo Message-Id: <20181017082702.5581-18-armbru@redhat.com> --- qemu-seccomp.c | 18 +++++++++--------- vl.c | 4 ++-- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/qemu-seccomp.c b/qemu-seccomp.c index 1baa5c69ed..5c73e6ad05 100644 --- a/qemu-seccomp.c +++ b/qemu-seccomp.c @@ -12,11 +12,12 @@ * Contributions after 2012-01-13 are licensed under the terms of the * GNU GPL, version 2 or (at your option) any later version. */ + #include "qemu/osdep.h" +#include "qapi/error.h" #include "qemu/config-file.h" #include "qemu/option.h" #include "qemu/module.h" -#include "qemu/error-report.h" #include #include #include "sysemu/seccomp.h" @@ -190,7 +191,7 @@ int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp) * to provide a little bit of consistency for * the command line */ } else { - error_report("invalid argument for obsolete"); + error_setg(errp, "invalid argument for obsolete"); return -1; } } @@ -205,14 +206,13 @@ int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp) /* calling prctl directly because we're * not sure if host has CAP_SYS_ADMIN set*/ if (prctl(PR_SET_NO_NEW_PRIVS, 1)) { - error_report("failed to set no_new_privs " - "aborting"); + error_setg(errp, "failed to set no_new_privs aborting"); return -1; } } else if (g_str_equal(value, "allow")) { /* default value */ } else { - error_report("invalid argument for elevateprivileges"); + error_setg(errp, "invalid argument for elevateprivileges"); return -1; } } @@ -224,7 +224,7 @@ int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp) } else if (g_str_equal(value, "allow")) { /* default value */ } else { - error_report("invalid argument for spawn"); + error_setg(errp, "invalid argument for spawn"); return -1; } } @@ -236,14 +236,14 @@ int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp) } else if (g_str_equal(value, "allow")) { /* default value */ } else { - error_report("invalid argument for resourcecontrol"); + error_setg(errp, "invalid argument for resourcecontrol"); return -1; } } if (seccomp_start(seccomp_opts) < 0) { - error_report("failed to install seccomp syscall filter " - "in the kernel"); + error_setg(errp, "failed to install seccomp syscall filter " + "in the kernel"); return -1; } } diff --git a/vl.c b/vl.c index db83cfe2e9..d7b604c97e 100644 --- a/vl.c +++ b/vl.c @@ -3973,8 +3973,8 @@ int main(int argc, char **argv, char **envp) #ifdef CONFIG_SECCOMP olist = qemu_find_opts_err("sandbox", NULL); - if (olist && qemu_opts_foreach(olist, parse_sandbox, NULL, NULL)) { - exit(1); + if (olist) { + qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); } #endif From 6353218b8c54dc6be6abb01c07a087add07ee5ce Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:42 +0200 Subject: [PATCH 20/40] vl: Clean up error reporting in parse_add_fd() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. parse_add_fd() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Also change call of cleanup_add_fd(), which can't fail, for symmetry. Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-19-armbru@redhat.com> --- vl.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/vl.c b/vl.c index d7b604c97e..87ad2e7de7 100644 --- a/vl.c +++ b/vl.c @@ -1059,12 +1059,12 @@ static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) fd_opaque = qemu_opt_get(opts, "opaque"); if (fd < 0) { - error_report("fd option is required and must be non-negative"); + error_setg(errp, "fd option is required and must be non-negative"); return -1; } if (fd <= STDERR_FILENO) { - error_report("fd cannot be a standard I/O stream"); + error_setg(errp, "fd cannot be a standard I/O stream"); return -1; } @@ -1074,12 +1074,12 @@ static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) */ flags = fcntl(fd, F_GETFD); if (flags == -1 || (flags & FD_CLOEXEC)) { - error_report("fd is not valid or already in use"); + error_setg(errp, "fd is not valid or already in use"); return -1; } if (fdset_id < 0) { - error_report("set option is required and must be non-negative"); + error_setg(errp, "set option is required and must be non-negative"); return -1; } @@ -1092,7 +1092,7 @@ static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) } #endif if (dupfd == -1) { - error_report("error duplicating fd: %s", strerror(errno)); + error_setg(errp, "error duplicating fd: %s", strerror(errno)); return -1; } @@ -3984,15 +3984,11 @@ int main(int argc, char **argv, char **envp) } #ifndef _WIN32 - if (qemu_opts_foreach(qemu_find_opts("add-fd"), - parse_add_fd, NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("add-fd"), + parse_add_fd, NULL, &error_fatal); - if (qemu_opts_foreach(qemu_find_opts("add-fd"), - cleanup_add_fd, NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("add-fd"), + cleanup_add_fd, NULL, &error_fatal); #endif current_machine = MACHINE(object_new(object_class_get_name( From 7e1e0c11127bde81cff260fc6859690435c509d6 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:43 +0200 Subject: [PATCH 21/40] qom: Clean up error reporting in user_creatable_add_opts_foreach() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. user_creatable_add_opts_foreach() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Cc: Daniel P. Berrangé Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-20-armbru@redhat.com> --- qemu-io.c | 8 +++----- qemu-nbd.c | 8 +++----- qom/object_interfaces.c | 4 +--- vl.c | 16 ++++++---------- 4 files changed, 13 insertions(+), 23 deletions(-) diff --git a/qemu-io.c b/qemu-io.c index 13829f5e21..6df7731af4 100644 --- a/qemu-io.c +++ b/qemu-io.c @@ -620,11 +620,9 @@ int main(int argc, char **argv) exit(1); } - if (qemu_opts_foreach(&qemu_object_opts, - user_creatable_add_opts_foreach, - NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(&qemu_object_opts, + user_creatable_add_opts_foreach, + NULL, &error_fatal); if (!trace_init_backends()) { exit(1); diff --git a/qemu-nbd.c b/qemu-nbd.c index 7874bc973c..ca7109652e 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -766,11 +766,9 @@ int main(int argc, char **argv) exit(EXIT_FAILURE); } - if (qemu_opts_foreach(&qemu_object_opts, - user_creatable_add_opts_foreach, - NULL, NULL)) { - exit(EXIT_FAILURE); - } + qemu_opts_foreach(&qemu_object_opts, + user_creatable_add_opts_foreach, + NULL, &error_fatal); if (!trace_init_backends()) { exit(1); diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c index 941fd63afd..97b79b48bb 100644 --- a/qom/object_interfaces.c +++ b/qom/object_interfaces.c @@ -143,7 +143,6 @@ int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp) { bool (*type_opt_predicate)(const char *, QemuOpts *) = opaque; Object *obj = NULL; - Error *err = NULL; const char *type; type = qemu_opt_get(opts, "qom-type"); @@ -152,9 +151,8 @@ int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp) return 0; } - obj = user_creatable_add_opts(opts, &err); + obj = user_creatable_add_opts(opts, errp); if (!obj) { - error_report_err(err); return -1; } object_unref(obj); diff --git a/vl.c b/vl.c index 87ad2e7de7..f8a13d7070 100644 --- a/vl.c +++ b/vl.c @@ -4229,11 +4229,9 @@ int main(int argc, char **argv, char **envp) page_size_init(); socket_init(); - if (qemu_opts_foreach(qemu_find_opts("object"), - user_creatable_add_opts_foreach, - object_create_initial, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("object"), + user_creatable_add_opts_foreach, + object_create_initial, &error_fatal); if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, NULL)) { @@ -4364,11 +4362,9 @@ int main(int argc, char **argv, char **envp) exit(1); } - if (qemu_opts_foreach(qemu_find_opts("object"), - user_creatable_add_opts_foreach, - object_create_delayed, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("object"), + user_creatable_add_opts_foreach, + object_create_delayed, &error_fatal); if (tpm_init() < 0) { exit(1); From dd4af97733401e200c39184ecca4c8eabb222637 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:44 +0200 Subject: [PATCH 22/40] vl: Clean up error reporting in chardev_init_func() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. chardev_init_func() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-21-armbru@redhat.com> --- vl.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/vl.c b/vl.c index f8a13d7070..d84857c064 100644 --- a/vl.c +++ b/vl.c @@ -2239,7 +2239,7 @@ static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) if (!qemu_chr_new_from_opts(opts, &local_err)) { if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); return -1; } exit(0); @@ -4233,10 +4233,8 @@ int main(int argc, char **argv, char **envp) user_creatable_add_opts_foreach, object_create_initial, &error_fatal); - if (qemu_opts_foreach(qemu_find_opts("chardev"), - chardev_init_func, NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("chardev"), + chardev_init_func, NULL, &error_fatal); #ifdef CONFIG_VIRTFS if (qemu_opts_foreach(qemu_find_opts("fsdev"), From 702832b8c0444fd3ea703ab494e9e955ce0433b1 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:45 +0200 Subject: [PATCH 23/40] vl: Clean up error reporting in machine_set_property() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. machine_set_property() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-22-armbru@redhat.com> --- vl.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/vl.c b/vl.c index d84857c064..0b69871295 100644 --- a/vl.c +++ b/vl.c @@ -2677,7 +2677,7 @@ static int machine_set_property(void *opaque, g_free(qom_name); if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); return -1; } @@ -4249,11 +4249,8 @@ int main(int argc, char **argv, char **envp) } machine_opts = qemu_get_machine_opts(); - if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine, - NULL)) { - object_unref(OBJECT(current_machine)); - exit(1); - } + qemu_opt_foreach(machine_opts, machine_set_property, current_machine, + &error_fatal); configure_accelerator(current_machine); From 2d5a3a8b02aeed25a46b311abf9088f62ec61d66 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:46 +0200 Subject: [PATCH 24/40] vl: Clean up error reporting in mon_init_func() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. mon_init_func() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-23-armbru@redhat.com> --- vl.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/vl.c b/vl.c index 0b69871295..6830fc8d8f 100644 --- a/vl.c +++ b/vl.c @@ -2270,8 +2270,8 @@ static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) } else if (strcmp(mode, "control") == 0) { flags = MONITOR_USE_CONTROL; } else { - error_report("unknown monitor mode \"%s\"", mode); - exit(1); + error_setg(errp, "unknown monitor mode \"%s\"", mode); + return -1; } if (qemu_opt_get_bool(opts, "pretty", 0)) @@ -2285,8 +2285,8 @@ static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) chardev = qemu_opt_get(opts, "chardev"); chr = qemu_chr_find(chardev); if (chr == NULL) { - error_report("chardev \"%s\" not found", chardev); - exit(1); + error_setg(errp, "chardev \"%s\" not found", chardev); + return -1; } monitor_init(chr, flags); @@ -4413,10 +4413,8 @@ int main(int argc, char **argv, char **envp) default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS); default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS); - if (qemu_opts_foreach(qemu_find_opts("mon"), - mon_init_func, NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("mon"), + mon_init_func, NULL, &error_fatal); if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) exit(1); From 406b6367e19cdaf4ad948c469f82875f8af24ab2 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:47 +0200 Subject: [PATCH 25/40] vl: Clean up error reporting in parse_fw_cfg() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. parse_fw_cfg() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-24-armbru@redhat.com> --- vl.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/vl.c b/vl.c index 6830fc8d8f..92d15711a5 100644 --- a/vl.c +++ b/vl.c @@ -2174,7 +2174,7 @@ static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) FWCfgState *fw_cfg = (FWCfgState *) opaque; if (fw_cfg == NULL) { - error_report("fw_cfg device not available"); + error_setg(errp, "fw_cfg device not available"); return -1; } name = qemu_opt_get(opts, "name"); @@ -2183,15 +2183,16 @@ static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) /* we need name and either a file or the content string */ if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) { - error_report("invalid argument(s)"); + error_setg(errp, "invalid argument(s)"); return -1; } if (nonempty_str(file) && nonempty_str(str)) { - error_report("file and string are mutually exclusive"); + error_setg(errp, "file and string are mutually exclusive"); return -1; } if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { - error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1); + error_setg(errp, "name too long (max. %d char)", + FW_CFG_MAX_FILE_PATH - 1); return -1; } if (strncmp(name, "opt/", 4) != 0) { @@ -2203,7 +2204,7 @@ static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) buf = g_memdup(str, size); } else { if (!g_file_get_contents(file, &buf, &size, NULL)) { - error_report("can't load %s", file); + error_setg(errp, "can't load %s", file); return -1; } } @@ -4477,10 +4478,8 @@ int main(int argc, char **argv, char **envp) hax_sync_vcpus(); } - if (qemu_opts_foreach(qemu_find_opts("fw_cfg"), - parse_fw_cfg, fw_cfg_find(), NULL) != 0) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("fw_cfg"), + parse_fw_cfg, fw_cfg_find(), &error_fatal); /* init USB devices */ if (machine_usb(current_machine)) { From cd65f34991f01c23c9e3e1691953b79e36a1b911 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:48 +0200 Subject: [PATCH 26/40] vl: Clean up error reporting in device_init_func() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. device_init_func() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20181017082702.5581-25-armbru@redhat.com> --- vl.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/vl.c b/vl.c index 92d15711a5..1fa1e14853 100644 --- a/vl.c +++ b/vl.c @@ -2222,12 +2222,10 @@ static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) { - Error *err = NULL; DeviceState *dev; - dev = qdev_device_add(opts, &err); + dev = qdev_device_add(opts, errp); if (!dev) { - error_report_err(err); return -1; } object_unref(OBJECT(dev)); @@ -4492,10 +4490,8 @@ int main(int argc, char **argv, char **envp) /* init generic devices */ rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); - if (qemu_opts_foreach(qemu_find_opts("device"), - device_init_func, NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("device"), + device_init_func, NULL, &error_fatal); cpu_synchronize_all_post_init(); From f7b9e299a44343115148246b4de53fb3ac6e7b22 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:49 +0200 Subject: [PATCH 27/40] ui/keymaps: Fix handling of erroneous include files While errors in the keyboard layout named with -k are fatal, errors in included files are reported, but otherwise ignored: $ cat worst include bad include worse $ ls -l bad worse ls: cannot access 'bad': No such file or directory ls: cannot access 'worse': No such file or directory $ qemu-system-x86_64 -nodefaults -S -monitor stdio -display vnc=:0 -k bad QEMU 3.0.50 monitor - type 'help' for more information (qemu) Could not read keymap file: 'bad' $ qemu-system-x86_64 -nodefaults -S -monitor stdio -display vnc=:0 -k worst QEMU 3.0.50 monitor - type 'help' for more information (qemu) Could not read keymap file: 'bad' Could not read keymap file: 'worse' Fix that. Note that parse_keyboard_layout() allocates the keymap, except when it's parsing an include file. To keep error handling simple, move the memory management to its caller init_keyboard_layout(). Cc: Gerd Hoffmann Signed-off-by: Markus Armbruster Message-Id: <20181017082702.5581-26-armbru@redhat.com> Reviewed-by: Gerd Hoffmann --- ui/keymaps.c | 35 +++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-) diff --git a/ui/keymaps.c b/ui/keymaps.c index 43fe604724..b05fb028dc 100644 --- a/ui/keymaps.c +++ b/ui/keymaps.c @@ -79,10 +79,11 @@ static void add_keysym(char *line, int keysym, int keycode, kbd_layout_t *k) trace_keymap_add(keysym, keycode, line); } -static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table, - const char *language, - kbd_layout_t *k) +static int parse_keyboard_layout(kbd_layout_t *k, + const name2keysym_t *table, + const char *language) { + int ret; FILE *f; char * filename; char line[1024]; @@ -95,12 +96,7 @@ static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table, g_free(filename); if (!f) { fprintf(stderr, "Could not read keymap file: '%s'\n", language); - return NULL; - } - - if (!k) { - k = g_new0(kbd_layout_t, 1); - k->hash = g_hash_table_new(NULL, NULL); + return -1; } for(;;) { @@ -118,7 +114,10 @@ static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table, continue; } if (!strncmp(line, "include ", 8)) { - parse_keyboard_layout(table, line + 8, k); + if (parse_keyboard_layout(k, table, line + 8) < 0) { + ret = -1; + goto out; + } } else { int offset = 0; while (line[offset] != 0 && @@ -164,15 +163,27 @@ static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table, } } } + + ret = 0; +out: fclose(f); - return k; + return ret; } kbd_layout_t *init_keyboard_layout(const name2keysym_t *table, const char *language) { - return parse_keyboard_layout(table, language, NULL); + kbd_layout_t *k; + + k = g_new0(kbd_layout_t, 1); + k->hash = g_hash_table_new(NULL, NULL); + if (parse_keyboard_layout(k, table, language) < 0) { + g_hash_table_unref(k->hash); + g_free(k); + return NULL; + } + return k; } From ab4f931e9f0a6e1c6dd6ecd79118efca418d941f Mon Sep 17 00:00:00 2001 From: Fei Li Date: Wed, 17 Oct 2018 10:26:50 +0200 Subject: [PATCH 28/40] ui: Convert vnc_display_init(), init_keyboard_layout() to Error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Fei Li Cc: Gerd Hoffmann Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20181017082702.5581-27-armbru@redhat.com> Reviewed-by: Gerd Hoffmann --- include/ui/console.h | 2 +- ui/curses.c | 6 +++--- ui/keymaps.c | 11 ++++++----- ui/keymaps.h | 2 +- ui/sdl.c | 6 +++--- ui/vnc.c | 15 ++++++++++----- 6 files changed, 24 insertions(+), 18 deletions(-) diff --git a/include/ui/console.h b/include/ui/console.h index fb969caf70..c17803c530 100644 --- a/include/ui/console.h +++ b/include/ui/console.h @@ -453,7 +453,7 @@ void qemu_display_early_init(DisplayOptions *opts); void qemu_display_init(DisplayState *ds, DisplayOptions *opts); /* vnc.c */ -void vnc_display_init(const char *id); +void vnc_display_init(const char *id, Error **errp); void vnc_display_open(const char *id, Error **errp); void vnc_display_add_client(const char *id, int csock, bool skipauth); int vnc_display_password(const char *id, const char *password); diff --git a/ui/curses.c b/ui/curses.c index 59d819fd4d..f4e7a12f74 100644 --- a/ui/curses.c +++ b/ui/curses.c @@ -28,6 +28,7 @@ #include #endif +#include "qapi/error.h" #include "qemu-common.h" #include "ui/console.h" #include "ui/input.h" @@ -421,9 +422,8 @@ static void curses_keyboard_setup(void) keyboard_layout = "en-us"; #endif if(keyboard_layout) { - kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout); - if (!kbd_layout) - exit(1); + kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout, + &error_fatal); } } diff --git a/ui/keymaps.c b/ui/keymaps.c index b05fb028dc..085889b555 100644 --- a/ui/keymaps.c +++ b/ui/keymaps.c @@ -27,6 +27,7 @@ #include "sysemu/sysemu.h" #include "trace.h" #include "qemu/error-report.h" +#include "qapi/error.h" struct keysym2code { uint32_t count; @@ -81,7 +82,7 @@ static void add_keysym(char *line, int keysym, int keycode, kbd_layout_t *k) static int parse_keyboard_layout(kbd_layout_t *k, const name2keysym_t *table, - const char *language) + const char *language, Error **errp) { int ret; FILE *f; @@ -95,7 +96,7 @@ static int parse_keyboard_layout(kbd_layout_t *k, f = filename ? fopen(filename, "r") : NULL; g_free(filename); if (!f) { - fprintf(stderr, "Could not read keymap file: '%s'\n", language); + error_setg(errp, "could not read keymap file: '%s'", language); return -1; } @@ -114,7 +115,7 @@ static int parse_keyboard_layout(kbd_layout_t *k, continue; } if (!strncmp(line, "include ", 8)) { - if (parse_keyboard_layout(k, table, line + 8) < 0) { + if (parse_keyboard_layout(k, table, line + 8, errp) < 0) { ret = -1; goto out; } @@ -172,13 +173,13 @@ out: kbd_layout_t *init_keyboard_layout(const name2keysym_t *table, - const char *language) + const char *language, Error **errp) { kbd_layout_t *k; k = g_new0(kbd_layout_t, 1); k->hash = g_hash_table_new(NULL, NULL); - if (parse_keyboard_layout(k, table, language) < 0) { + if (parse_keyboard_layout(k, table, language, errp) < 0) { g_hash_table_unref(k->hash); g_free(k); return NULL; diff --git a/ui/keymaps.h b/ui/keymaps.h index 0693588225..98213a4191 100644 --- a/ui/keymaps.h +++ b/ui/keymaps.h @@ -53,7 +53,7 @@ typedef struct { typedef struct kbd_layout_t kbd_layout_t; kbd_layout_t *init_keyboard_layout(const name2keysym_t *table, - const char *language); + const char *language, Error **errp); int keysym2scancode(kbd_layout_t *k, int keysym, bool shift, bool altgr, bool ctrl); int keycode_is_keypad(kbd_layout_t *k, int keycode); diff --git a/ui/sdl.c b/ui/sdl.c index a5fd503c25..190b16f575 100644 --- a/ui/sdl.c +++ b/ui/sdl.c @@ -29,6 +29,7 @@ #include #include +#include "qapi/error.h" #include "qemu-common.h" #include "qemu/cutils.h" #include "ui/console.h" @@ -917,9 +918,8 @@ static void sdl1_display_init(DisplayState *ds, DisplayOptions *o) keyboard_layout = "en-us"; #endif if(keyboard_layout) { - kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout); - if (!kbd_layout) - exit(1); + kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout, + &error_fatal); } g_printerr("Running QEMU with SDL 1.2 is deprecated, and will be removed\n" diff --git a/ui/vnc.c b/ui/vnc.c index cf221c83cc..98e3d3b1d8 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -3205,7 +3205,7 @@ static const DisplayChangeListenerOps dcl_ops = { .dpy_cursor_define = vnc_dpy_cursor_define, }; -void vnc_display_init(const char *id) +void vnc_display_init(const char *id, Error **errp) { VncDisplay *vd; @@ -3222,13 +3222,14 @@ void vnc_display_init(const char *id) if (keyboard_layout) { trace_vnc_key_map_init(keyboard_layout); - vd->kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout); + vd->kbd_layout = init_keyboard_layout(name2keysym, + keyboard_layout, errp); } else { - vd->kbd_layout = init_keyboard_layout(name2keysym, "en-us"); + vd->kbd_layout = init_keyboard_layout(name2keysym, "en-us", errp); } if (!vd->kbd_layout) { - exit(1); + return; } vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE; @@ -4079,7 +4080,11 @@ int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp) char *id = (char *)qemu_opts_id(opts); assert(id); - vnc_display_init(id); + vnc_display_init(id, &local_err); + if (local_err) { + error_report_err(local_err); + exit(1); + } vnc_display_open(id, &local_err); if (local_err != NULL) { error_reportf_err(local_err, "Failed to start VNC server: "); From 612aea201738cd747b02d2c2acd6e0bf406531cf Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:51 +0200 Subject: [PATCH 29/40] vnc: Clean up error reporting in vnc_init_func() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. vnc_init_func() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. While there, drop a "Failed to start VNC server: " error message prefix that doesn't really add value. Cc: Gerd Hoffmann Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20181017082702.5581-28-armbru@redhat.com> Reviewed-by: Gerd Hoffmann --- ui/vnc.c | 8 ++++---- vl.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/ui/vnc.c b/ui/vnc.c index 98e3d3b1d8..0c1b477425 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -4082,13 +4082,13 @@ int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp) assert(id); vnc_display_init(id, &local_err); if (local_err) { - error_report_err(local_err); - exit(1); + error_propagate(errp, local_err); + return -1; } vnc_display_open(id, &local_err); if (local_err != NULL) { - error_reportf_err(local_err, "Failed to start VNC server: "); - exit(1); + error_propagate(errp, local_err); + return -1; } return 0; } diff --git a/vl.c b/vl.c index 1fa1e14853..2ff0c5f32d 100644 --- a/vl.c +++ b/vl.c @@ -4527,7 +4527,7 @@ int main(int argc, char **argv, char **envp) /* init remote displays */ #ifdef CONFIG_VNC qemu_opts_foreach(qemu_find_opts("vnc"), - vnc_init_func, NULL, NULL); + vnc_init_func, NULL, &error_fatal); #endif if (using_spice) { From 4f7ec696f4b124364c1b145dbe835984edc4c887 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:52 +0200 Subject: [PATCH 30/40] numa: Clean up error reporting in parse_numa() Calling error_report() in a function that takes an Error ** argument is suspicious. parse_numa() does that, and then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. While there, give parse_numa() internal linkage. Cc: Eduardo Habkost Signed-off-by: Markus Armbruster Reviewed-by: Eduardo Habkost Message-Id: <20181017082702.5581-29-armbru@redhat.com> --- include/sysemu/numa.h | 1 - numa.c | 8 +++----- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/include/sysemu/numa.h b/include/sysemu/numa.h index 7a0ae751aa..21713b7e2f 100644 --- a/include/sysemu/numa.h +++ b/include/sysemu/numa.h @@ -22,7 +22,6 @@ struct NumaNodeMem { }; extern NodeInfo numa_info[MAX_NODES]; -int parse_numa(void *opaque, QemuOpts *opts, Error **errp); void parse_numa_opts(MachineState *ms); void numa_complete_configuration(MachineState *ms); void query_numa_node_mem(NumaNodeMem node_mem[]); diff --git a/numa.c b/numa.c index 1d7c49ad43..50ec016013 100644 --- a/numa.c +++ b/numa.c @@ -215,7 +215,7 @@ end: error_propagate(errp, err); } -int parse_numa(void *opaque, QemuOpts *opts, Error **errp) +static int parse_numa(void *opaque, QemuOpts *opts, Error **errp) { NumaOptions *object = NULL; MachineState *ms = MACHINE(opaque); @@ -239,7 +239,7 @@ int parse_numa(void *opaque, QemuOpts *opts, Error **errp) end: qapi_free_NumaOptions(object); if (err) { - error_report_err(err); + error_propagate(errp, err); return -1; } @@ -444,9 +444,7 @@ void numa_complete_configuration(MachineState *ms) void parse_numa_opts(MachineState *ms) { - if (qemu_opts_foreach(qemu_find_opts("numa"), parse_numa, ms, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("numa"), parse_numa, ms, &error_fatal); } void qmp_set_numa_node(NumaOptions *cmd, Error **errp) From d10e05f15d5c3dd5e5cc59c5dfff460d89d48580 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:53 +0200 Subject: [PATCH 31/40] tpm: Clean up error reporting in tpm_init_tpmdev() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. tpm_init_tpmdev() does that, and then fails without setting an error. Its caller main(), via tpm_init() and qemu_opts_foreach(), is fine with it, but clean it up anyway. Cc: Stefan Berger Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Marc-André Lureau Reviewed-by: Stefan Berger Message-Id: <20181017082702.5581-30-armbru@redhat.com> --- include/sysemu/tpm.h | 2 +- stubs/tpm.c | 3 +-- tpm.c | 22 +++++++++------------- vl.c | 4 +--- 4 files changed, 12 insertions(+), 19 deletions(-) diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h index 9ae1ab6da3..17a97ed77a 100644 --- a/include/sysemu/tpm.h +++ b/include/sysemu/tpm.h @@ -16,7 +16,7 @@ #include "qom/object.h" int tpm_config_parse(QemuOptsList *opts_list, const char *optarg); -int tpm_init(void); +void tpm_init(void); void tpm_cleanup(void); typedef enum TPMVersion { diff --git a/stubs/tpm.c b/stubs/tpm.c index 6729bc8517..80939cd3db 100644 --- a/stubs/tpm.c +++ b/stubs/tpm.c @@ -9,9 +9,8 @@ #include "qapi/qapi-commands-tpm.h" #include "sysemu/tpm.h" -int tpm_init(void) +void tpm_init(void) { - return 0; } void tpm_cleanup(void) diff --git a/tpm.c b/tpm.c index 93031723ad..9c9e20bbb7 100644 --- a/tpm.c +++ b/tpm.c @@ -89,19 +89,19 @@ static int tpm_init_tpmdev(void *dummy, QemuOpts *opts, Error **errp) int i; if (!QLIST_EMPTY(&tpm_backends)) { - error_report("Only one TPM is allowed."); + error_setg(errp, "Only one TPM is allowed."); return 1; } id = qemu_opts_id(opts); if (id == NULL) { - error_report(QERR_MISSING_PARAMETER, "id"); + error_setg(errp, QERR_MISSING_PARAMETER, "id"); return 1; } value = qemu_opt_get(opts, "type"); if (!value) { - error_report(QERR_MISSING_PARAMETER, "type"); + error_setg(errp, QERR_MISSING_PARAMETER, "type"); tpm_display_backend_drivers(); return 1; } @@ -109,8 +109,8 @@ static int tpm_init_tpmdev(void *dummy, QemuOpts *opts, Error **errp) i = qapi_enum_parse(&TpmType_lookup, value, -1, NULL); be = i >= 0 ? tpm_be_find_by_type(i) : NULL; if (be == NULL) { - error_report(QERR_INVALID_PARAMETER_VALUE, - "type", "a TPM backend type"); + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type", + "a TPM backend type"); tpm_display_backend_drivers(); return 1; } @@ -118,7 +118,7 @@ static int tpm_init_tpmdev(void *dummy, QemuOpts *opts, Error **errp) /* validate backend specific opts */ qemu_opts_validate(opts, be->opts, &local_err); if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); return 1; } @@ -151,14 +151,10 @@ void tpm_cleanup(void) * Initialize the TPM. Process the tpmdev command line options describing the * TPM backend. */ -int tpm_init(void) +void tpm_init(void) { - if (qemu_opts_foreach(qemu_find_opts("tpmdev"), - tpm_init_tpmdev, NULL, NULL)) { - return -1; - } - - return 0; + qemu_opts_foreach(qemu_find_opts("tpmdev"), + tpm_init_tpmdev, NULL, &error_fatal); } /* diff --git a/vl.c b/vl.c index 2ff0c5f32d..2f265b9c74 100644 --- a/vl.c +++ b/vl.c @@ -4360,9 +4360,7 @@ int main(int argc, char **argv, char **envp) user_creatable_add_opts_foreach, object_create_delayed, &error_fatal); - if (tpm_init() < 0) { - exit(1); - } + tpm_init(); /* init the bluetooth world */ if (foreach_device_config(DEV_BT, bt_parse)) From 9338570b7b0b8890269222b7b40e0b819f824dab Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:54 +0200 Subject: [PATCH 32/40] spice: Clean up error reporting in add_channel() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. add_channel() does that, and then exit()s. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Cc: Gerd Hoffmann Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-31-armbru@redhat.com> Reviewed-by: Gerd Hoffmann --- ui/spice-core.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/ui/spice-core.c b/ui/spice-core.c index a4fbbc3898..ebaae24643 100644 --- a/ui/spice-core.c +++ b/ui/spice-core.c @@ -597,9 +597,9 @@ static int add_channel(void *opaque, const char *name, const char *value, if (strcmp(name, "tls-channel") == 0) { int *tls_port = opaque; if (!*tls_port) { - error_report("spice: tried to setup tls-channel" - " without specifying a TLS port"); - exit(1); + error_setg(errp, "spice: tried to setup tls-channel" + " without specifying a TLS port"); + return -1; } security = SPICE_CHANNEL_SECURITY_SSL; } @@ -615,8 +615,9 @@ static int add_channel(void *opaque, const char *name, const char *value, rc = spice_server_set_channel_security(spice_server, value, security); } if (rc != 0) { - error_report("spice: failed to set channel security for %s", value); - exit(1); + error_setg(errp, "spice: failed to set channel security for %s", + value); + return -1; } return 0; } @@ -787,7 +788,7 @@ void qemu_spice_init(void) spice_server_set_playback_compression (spice_server, qemu_opt_get_bool(opts, "playback-compression", 1)); - qemu_opt_foreach(opts, add_channel, &tls_port, NULL); + qemu_opt_foreach(opts, add_channel, &tls_port, &error_fatal); spice_server_set_name(spice_server, qemu_name); spice_server_set_uuid(spice_server, (unsigned char *)&qemu_uuid); From b836723dfe642a67904bcd047feaaa0cda662d38 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:55 +0200 Subject: [PATCH 33/40] fsdev: Clean up error reporting in qemu_fsdev_add() Calling error_report() from within a function that takes an Error ** argument is suspicious. qemu_fsdev_add() does that, and its caller fsdev_init_func() then fails without setting an error. Its caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway. Cc: Greg Kurz Signed-off-by: Markus Armbruster Acked-by: Greg Kurz Message-Id: <20181017082702.5581-32-armbru@redhat.com> --- fsdev/qemu-fsdev-dummy.c | 2 +- fsdev/qemu-fsdev.c | 12 +++++------- fsdev/qemu-fsdev.h | 2 +- hw/9pfs/xen-9p-backend.c | 7 ++++++- vl.c | 8 +++----- 5 files changed, 16 insertions(+), 15 deletions(-) diff --git a/fsdev/qemu-fsdev-dummy.c b/fsdev/qemu-fsdev-dummy.c index 6dc0fbc4c4..489cd29081 100644 --- a/fsdev/qemu-fsdev-dummy.c +++ b/fsdev/qemu-fsdev-dummy.c @@ -15,7 +15,7 @@ #include "qemu/config-file.h" #include "qemu/module.h" -int qemu_fsdev_add(QemuOpts *opts) +int qemu_fsdev_add(QemuOpts *opts, Error **errp) { return 0; } diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c index 8a4afbffbd..7a3b87cc9e 100644 --- a/fsdev/qemu-fsdev.c +++ b/fsdev/qemu-fsdev.c @@ -30,7 +30,7 @@ static FsDriverTable FsDrivers[] = { { .name = "proxy", .ops = &proxy_ops}, }; -int qemu_fsdev_add(QemuOpts *opts) +int qemu_fsdev_add(QemuOpts *opts, Error **errp) { int i; struct FsDriverListEntry *fsle; @@ -38,10 +38,9 @@ int qemu_fsdev_add(QemuOpts *opts) const char *fsdriver = qemu_opt_get(opts, "fsdriver"); const char *writeout = qemu_opt_get(opts, "writeout"); bool ro = qemu_opt_get_bool(opts, "readonly", 0); - Error *local_err = NULL; if (!fsdev_id) { - error_report("fsdev: No id specified"); + error_setg(errp, "fsdev: No id specified"); return -1; } @@ -53,11 +52,11 @@ int qemu_fsdev_add(QemuOpts *opts) } if (i == ARRAY_SIZE(FsDrivers)) { - error_report("fsdev: fsdriver %s not found", fsdriver); + error_setg(errp, "fsdev: fsdriver %s not found", fsdriver); return -1; } } else { - error_report("fsdev: No fsdriver specified"); + error_setg(errp, "fsdev: No fsdriver specified"); return -1; } @@ -76,8 +75,7 @@ int qemu_fsdev_add(QemuOpts *opts) } if (fsle->fse.ops->parse_opts) { - if (fsle->fse.ops->parse_opts(opts, &fsle->fse, &local_err)) { - error_report_err(local_err); + if (fsle->fse.ops->parse_opts(opts, &fsle->fse, errp)) { g_free(fsle->fse.fsdev_id); g_free(fsle); return -1; diff --git a/fsdev/qemu-fsdev.h b/fsdev/qemu-fsdev.h index 65e4b1cfab..d9716b4144 100644 --- a/fsdev/qemu-fsdev.h +++ b/fsdev/qemu-fsdev.h @@ -38,7 +38,7 @@ typedef struct FsDriverListEntry { QTAILQ_ENTRY(FsDriverListEntry) next; } FsDriverListEntry; -int qemu_fsdev_add(QemuOpts *opts); +int qemu_fsdev_add(QemuOpts *opts, Error **errp); FsDriverEntry *get_fsdev_fsentry(char *id); extern FileOperations local_ops; extern FileOperations handle_ops; diff --git a/hw/9pfs/xen-9p-backend.c b/hw/9pfs/xen-9p-backend.c index 6026780f95..3f54a21c76 100644 --- a/hw/9pfs/xen-9p-backend.c +++ b/hw/9pfs/xen-9p-backend.c @@ -14,6 +14,7 @@ #include "hw/9pfs/9p.h" #include "hw/xen/xen_backend.h" #include "hw/9pfs/xen-9pfs.h" +#include "qapi/error.h" #include "qemu/config-file.h" #include "qemu/option.h" #include "fsdev/qemu-fsdev.h" @@ -355,6 +356,7 @@ static int xen_9pfs_free(struct XenDevice *xendev) static int xen_9pfs_connect(struct XenDevice *xendev) { + Error *err = NULL; int i; Xen9pfsDev *xen_9pdev = container_of(xendev, Xen9pfsDev, xendev); V9fsState *s = &xen_9pdev->state; @@ -452,7 +454,10 @@ static int xen_9pfs_connect(struct XenDevice *xendev) qemu_opt_set(fsdev, "path", xen_9pdev->path, NULL); qemu_opt_set(fsdev, "security_model", xen_9pdev->security_model, NULL); qemu_opts_set_id(fsdev, s->fsconf.fsdev_id); - qemu_fsdev_add(fsdev); + qemu_fsdev_add(fsdev, &err); + if (err) { + error_report_err(err); + } v9fs_device_realize_common(s, &xen_9p_transport, NULL); return 0; diff --git a/vl.c b/vl.c index 2f265b9c74..7cd35d2c37 100644 --- a/vl.c +++ b/vl.c @@ -2249,7 +2249,7 @@ static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) #ifdef CONFIG_VIRTFS static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) { - return qemu_fsdev_add(opts); + return qemu_fsdev_add(opts, errp); } #endif @@ -4236,10 +4236,8 @@ int main(int argc, char **argv, char **envp) chardev_init_func, NULL, &error_fatal); #ifdef CONFIG_VIRTFS - if (qemu_opts_foreach(qemu_find_opts("fsdev"), - fsdev_init_func, NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("fsdev"), + fsdev_init_func, NULL, &error_fatal); #endif if (qemu_opts_foreach(qemu_find_opts("device"), From f881ca19f1942965490a70d23566c6287c49ceac Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:56 +0200 Subject: [PATCH 34/40] vl: Assert drive_new() does not fail in default_drive() If creating (empty) default drives fails, it's a bug. Therefore, assert() is more appropriate than exit(1). Cc: Kevin Wolf Cc: Max Reitz Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Max Reitz Message-Id: <20181017082702.5581-33-armbru@redhat.com> --- vl.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/vl.c b/vl.c index 7cd35d2c37..fbbae766d5 100644 --- a/vl.c +++ b/vl.c @@ -1156,9 +1156,7 @@ static void default_drive(int enable, int snapshot, BlockInterfaceType type, } dinfo = drive_new(opts, type); - if (!dinfo) { - exit(1); - } + assert(dinfo); dinfo->is_default = true; } From c4f26c9f37ce511e5fe629c21c180dc6eb7c5a25 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:57 +0200 Subject: [PATCH 35/40] blockdev: Convert drive_new() to Error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Calling error_report() from within a function that takes an Error ** argument is suspicious. drive_new() calls error_report() even though it can run within drive_init_func(), which takes an Error ** argument. drive_init_func()'s caller main(), via qemu_opts_foreach(), is fine with it, but clean it up anyway: * Convert drive_new() to Error * Update add_init_drive() to report the error received from drive_new() * Make main() pass &error_fatal through qemu_opts_foreach(), drive_init_func() to drive_new() * Make default_drive() pass &error_abort through qemu_opts_foreach(), drive_init_func() to drive_new() Cc: Kevin Wolf Cc: Max Reitz Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Max Reitz Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20181017082702.5581-34-armbru@redhat.com> --- blockdev.c | 27 ++++++++++++++------------- device-hotplug.c | 5 ++++- include/sysemu/blockdev.h | 3 ++- vl.c | 8 ++++---- 4 files changed, 24 insertions(+), 19 deletions(-) diff --git a/blockdev.c b/blockdev.c index a8755bd908..574adbcb7f 100644 --- a/blockdev.c +++ b/blockdev.c @@ -759,7 +759,8 @@ QemuOptsList qemu_legacy_drive_opts = { }, }; -DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) +DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type, + Error **errp) { const char *value; BlockBackend *blk; @@ -808,7 +809,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) qemu_opt_rename(all_opts, opt_renames[i].from, opt_renames[i].to, &local_err); if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); return NULL; } } @@ -819,7 +820,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) bool writethrough; if (bdrv_parse_cache_mode(value, &flags, &writethrough) != 0) { - error_report("invalid cache option"); + error_setg(errp, "invalid cache option"); return NULL; } @@ -847,7 +848,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) &error_abort); qemu_opts_absorb_qdict(legacy_opts, bs_opts, &local_err); if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); goto fail; } @@ -860,7 +861,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) media = MEDIA_CDROM; read_only = true; } else { - error_report("'%s' invalid media", value); + error_setg(errp, "'%s' invalid media", value); goto fail; } } @@ -885,7 +886,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) type++) { } if (type == IF_COUNT) { - error_report("unsupported bus type '%s'", value); + error_setg(errp, "unsupported bus type '%s'", value); goto fail; } } else { @@ -902,7 +903,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) if (index != -1) { if (bus_id != 0 || unit_id != -1) { - error_report("index cannot be used with bus and unit"); + error_setg(errp, "index cannot be used with bus and unit"); goto fail; } bus_id = drive_index_to_bus_id(type, index); @@ -921,13 +922,13 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) } if (max_devs && unit_id >= max_devs) { - error_report("unit %d too big (max is %d)", unit_id, max_devs - 1); + error_setg(errp, "unit %d too big (max is %d)", unit_id, max_devs - 1); goto fail; } if (drive_get(type, bus_id, unit_id) != NULL) { - error_report("drive with bus=%d, unit=%d (index=%d) exists", - bus_id, unit_id, index); + error_setg(errp, "drive with bus=%d, unit=%d (index=%d) exists", + bus_id, unit_id, index); goto fail; } @@ -970,7 +971,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) if (werror != NULL) { if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO && type != IF_NONE) { - error_report("werror is not supported by this bus type"); + error_setg(errp, "werror is not supported by this bus type"); goto fail; } qdict_put_str(bs_opts, "werror", werror); @@ -980,7 +981,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) if (rerror != NULL) { if (type != IF_IDE && type != IF_VIRTIO && type != IF_SCSI && type != IF_NONE) { - error_report("rerror is not supported by this bus type"); + error_setg(errp, "rerror is not supported by this bus type"); goto fail; } qdict_put_str(bs_opts, "rerror", rerror); @@ -991,7 +992,7 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType block_default_type) bs_opts = NULL; if (!blk) { if (local_err) { - error_report_err(local_err); + error_propagate(errp, local_err); } goto fail; } else { diff --git a/device-hotplug.c b/device-hotplug.c index cd427e2c76..6090d5f1e9 100644 --- a/device-hotplug.c +++ b/device-hotplug.c @@ -28,6 +28,7 @@ #include "sysemu/block-backend.h" #include "sysemu/blockdev.h" #include "qapi/qmp/qdict.h" +#include "qapi/error.h" #include "qemu/config-file.h" #include "qemu/option.h" #include "sysemu/sysemu.h" @@ -36,6 +37,7 @@ static DriveInfo *add_init_drive(const char *optstr) { + Error *err = NULL; DriveInfo *dinfo; QemuOpts *opts; MachineClass *mc; @@ -45,8 +47,9 @@ static DriveInfo *add_init_drive(const char *optstr) return NULL; mc = MACHINE_GET_CLASS(current_machine); - dinfo = drive_new(opts, mc->block_default_type); + dinfo = drive_new(opts, mc->block_default_type, &err); if (!dinfo) { + error_report_err(err); qemu_opts_del(opts); return NULL; } diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h index 24954b94e0..d34c4920dc 100644 --- a/include/sysemu/blockdev.h +++ b/include/sysemu/blockdev.h @@ -54,7 +54,8 @@ DriveInfo *drive_get_next(BlockInterfaceType type); QemuOpts *drive_def(const char *optstr); QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file, const char *optstr); -DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type); +DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type, + Error **errp); /* device-hotplug */ diff --git a/vl.c b/vl.c index fbbae766d5..4efa2d08d4 100644 --- a/vl.c +++ b/vl.c @@ -1129,7 +1129,7 @@ static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp) { BlockInterfaceType *block_default_type = opaque; - return drive_new(opts, *block_default_type) == NULL; + return drive_new(opts, *block_default_type, errp) == NULL; } static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp) @@ -1155,8 +1155,7 @@ static void default_drive(int enable, int snapshot, BlockInterfaceType type, drive_enable_snapshot(NULL, opts, NULL); } - dinfo = drive_new(opts, type); - assert(dinfo); + dinfo = drive_new(opts, type, &error_abort); dinfo->is_default = true; } @@ -4397,7 +4396,8 @@ int main(int argc, char **argv, char **envp) NULL, NULL); } if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, - &machine_class->block_default_type, NULL)) { + &machine_class->block_default_type, &error_fatal)) { + /* We printed help */ exit(1); } From 7c89fcbac865bed392bd645de3bf97f88b869318 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:58 +0200 Subject: [PATCH 36/40] vl: Fix exit status for -drive format=help Signed-off-by: Markus Armbruster Message-Id: <20181017082702.5581-35-armbru@redhat.com> --- vl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/vl.c b/vl.c index 4efa2d08d4..812ceba425 100644 --- a/vl.c +++ b/vl.c @@ -4398,7 +4398,7 @@ int main(int argc, char **argv, char **envp) if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine_class->block_default_type, &error_fatal)) { /* We printed help */ - exit(1); + exit(0); } default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2, From 5343bda42ba1abe61d81ac6b7712e118a3f74280 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:59 +0200 Subject: [PATCH 37/40] vl: Simplify call of parse_name() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit main() checks for parse_name() failure even though it can't actually fail. That's okay. Simplify it to check by passing &error_fatal, like the other users of qemu_opts_foreach(). Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20181017082702.5581-36-armbru@redhat.com> --- vl.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/vl.c b/vl.c index 812ceba425..d53e2563e9 100644 --- a/vl.c +++ b/vl.c @@ -3974,10 +3974,8 @@ int main(int argc, char **argv, char **envp) } #endif - if (qemu_opts_foreach(qemu_find_opts("name"), - parse_name, NULL, NULL)) { - exit(1); - } + qemu_opts_foreach(qemu_find_opts("name"), + parse_name, NULL, &error_fatal); #ifndef _WIN32 qemu_opts_foreach(qemu_find_opts("add-fd"), From da7e92cac95fd3b7f91354d2d65b5d59ea36dc13 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:27:00 +0200 Subject: [PATCH 38/40] block: Clean up bdrv_img_create()'s error reporting bdrv_img_create() takes an Error ** argument and uses it in the conventional way, except for one place: when qemu_opts_do_parse() fails, it first reports its error to stderr or the HMP monitor with error_report_err(), then error_setg()'s a generic error. When the caller reports that second error similarly, this produces two consecutive error messages on stderr or the HMP monitor. When the caller does something else with it, such as send it via QMP, the first error still goes to stderr or the HMP monitor. Fortunately, no such caller exists. Simply use the first error as is. Update expected output of qemu-iotest 049 accordingly. Cc: Kevin Wolf Cc: Max Reitz Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Message-Id: <20181017082702.5581-37-armbru@redhat.com> Reviewed-by: Kevin Wolf --- block.c | 3 --- tests/qemu-iotests/049.out | 12 ++++-------- 2 files changed, 4 insertions(+), 11 deletions(-) diff --git a/block.c b/block.c index 5d51419d21..08d64cdc61 100644 --- a/block.c +++ b/block.c @@ -4803,9 +4803,6 @@ void bdrv_img_create(const char *filename, const char *fmt, if (options) { qemu_opts_do_parse(opts, options, NULL, &local_err); if (local_err) { - error_report_err(local_err); - local_err = NULL; - error_setg(errp, "Invalid options for file format '%s'", fmt); goto out; } } diff --git a/tests/qemu-iotests/049.out b/tests/qemu-iotests/049.out index 0871bff564..6b505408dd 100644 --- a/tests/qemu-iotests/049.out +++ b/tests/qemu-iotests/049.out @@ -95,35 +95,31 @@ qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- -1024 qemu-img: Image size must be less than 8 EiB! qemu-img create -f qcow2 -o size=-1024 TEST_DIR/t.qcow2 -qemu-img: Value '-1024' is out of range for parameter 'size' -qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2' +qemu-img: TEST_DIR/t.qcow2: Value '-1024' is out of range for parameter 'size' qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- -1k qemu-img: Image size must be less than 8 EiB! qemu-img create -f qcow2 -o size=-1k TEST_DIR/t.qcow2 -qemu-img: Value '-1k' is out of range for parameter 'size' -qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2' +qemu-img: TEST_DIR/t.qcow2: Value '-1k' is out of range for parameter 'size' qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- 1kilobyte qemu-img: Invalid image size specified! You may use k, M, G, T, P or E suffixes for qemu-img: kilobytes, megabytes, gigabytes, terabytes, petabytes and exabytes. qemu-img create -f qcow2 -o size=1kilobyte TEST_DIR/t.qcow2 -qemu-img: Parameter 'size' expects a non-negative number below 2^64 +qemu-img: TEST_DIR/t.qcow2: Parameter 'size' expects a non-negative number below 2^64 Optional suffix k, M, G, T, P or E means kilo-, mega-, giga-, tera-, peta- and exabytes, respectively. -qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2' qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- foobar qemu-img: Invalid image size specified! You may use k, M, G, T, P or E suffixes for qemu-img: kilobytes, megabytes, gigabytes, terabytes, petabytes and exabytes. qemu-img create -f qcow2 -o size=foobar TEST_DIR/t.qcow2 -qemu-img: Parameter 'size' expects a non-negative number below 2^64 +qemu-img: TEST_DIR/t.qcow2: Parameter 'size' expects a non-negative number below 2^64 Optional suffix k, M, G, T, P or E means kilo-, mega-, giga-, tera-, peta- and exabytes, respectively. -qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2' == Check correct interpretation of suffixes for cluster size == From 04788ba2edb4dc30c934e49581a8c645937667c5 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:27:02 +0200 Subject: [PATCH 39/40] vpc: Fail open on bad header checksum vpc_open() merely prints a warning when it finds a bad header checksum. Turn that into a hard error. Cc: Kevin Wolf Signed-off-by: Markus Armbruster Message-Id: <20181017082702.5581-39-armbru@redhat.com> [Error message capitalized for local consistency] Reviewed-by: Kevin Wolf --- block/vpc.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/block/vpc.c b/block/vpc.c index bf294abfa7..984187cadd 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -284,9 +284,11 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, checksum = be32_to_cpu(footer->checksum); footer->checksum = 0; - if (vpc_checksum(s->footer_buf, HEADER_SIZE) != checksum) - fprintf(stderr, "block-vpc: The header checksum of '%s' is " - "incorrect.\n", bs->filename); + if (vpc_checksum(s->footer_buf, HEADER_SIZE) != checksum) { + error_setg(errp, "Incorrect header checksum"); + ret = -EINVAL; + goto fail; + } /* Write 'checksum' back to footer, or else will leave it with zero. */ footer->checksum = cpu_to_be32(checksum); From 80313fb53d8048882848b6f63daaeb29dc319765 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Fri, 19 Oct 2018 14:39:23 +0200 Subject: [PATCH 40/40] error: Drop bogus "use error_setg() instead" admonitions Commit 97f40301f1d "error: Functions to report warnings and informational messages" copied the "use error_setg() instead" admonition from the error reporting functions to new functions even though it doesn't actually apply there. Drop it. Also drop it from vreport(), where it doesn't apply anymore. Reported-by: Kevin Wolf Signed-off-by: Markus Armbruster Message-Id: <20181019123923.26649-1-armbru@redhat.com> Reviewed-by: Eric Blake --- util/qemu-error.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/util/qemu-error.c b/util/qemu-error.c index 4ab428f7e4..fcbe8a1f74 100644 --- a/util/qemu-error.c +++ b/util/qemu-error.c @@ -194,7 +194,6 @@ bool enable_timestamp_msg; * Format arguments like vsprintf(). The resulting message should be * a single phrase, with no newline or trailing punctuation. * Prepend the current location and append a newline. - * It's wrong to call this in a QMP monitor. Use error_setg() there. */ static void vreport(report_type type, const char *fmt, va_list ap) { @@ -242,7 +241,6 @@ void error_vreport(const char *fmt, va_list ap) * Format arguments like vsprintf(). The resulting message should be * a single phrase, with no newline or trailing punctuation. * Prepend the current location and append a newline. - * It's wrong to call this in a QMP monitor. Use error_setg() there. */ void warn_vreport(const char *fmt, va_list ap) { @@ -255,7 +253,6 @@ void warn_vreport(const char *fmt, va_list ap) * Format arguments like vsprintf(). The resulting message should be * a single phrase, with no newline or trailing punctuation. * Prepend the current location and append a newline. - * It's wrong to call this in a QMP monitor. Use error_setg() there. */ void info_vreport(const char *fmt, va_list ap) { @@ -283,7 +280,6 @@ void error_report(const char *fmt, ...) * Format arguments like sprintf(). The resulting message should be a * single phrase, with no newline or trailing punctuation. * Prepend the current location and append a newline. - * It's wrong to call this in a QMP monitor. Use error_setg() there. */ void warn_report(const char *fmt, ...) { @@ -300,7 +296,6 @@ void warn_report(const char *fmt, ...) * Format arguments like sprintf(). The resulting message should be a * single phrase, with no newline or trailing punctuation. * Prepend the current location and append a newline. - * It's wrong to call this in a QMP monitor. Use error_setg() there. */ void info_report(const char *fmt, ...) {