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* xsetbv fix (x86 targets TCG) 

* remove unused functions
 * qht segfault and memory leak fixes
 * NBD fixes
 * Fix for non-power-of-2 discard granularity
 * Memory hotplug fixes
 * Migration regressions
 * IOAPIC fixes and (disabled by default) EOI register support
 * Various other small fixes
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 Version: GnuPG v2
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* xsetbv fix (x86 targets TCG)
* remove unused functions
* qht segfault and memory leak fixes
* NBD fixes
* Fix for non-power-of-2 discard granularity
* Memory hotplug fixes
* Migration regressions
* IOAPIC fixes and (disabled by default) EOI register support
* Various other small fixes

# gpg: Signature made Wed 03 Aug 2016 18:01:05 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (25 commits)
  util: Fix assertion in iov_copy() upon zero 'bytes' and non-zero 'offset'
  qdev: Fix use after free in qdev_init_nofail error path
  Reorganize help output of '-display' option
  x86: ioapic: add support for explicit EOI
  x86: ioapic: ignore level irq during processing
  apic: fix broken migration for kvm-apic
  fw_cfg: Make base type "fw_cfg" abstract
  block: Cater to iscsi with non-power-of-2 discard
  osdep: Document differences in rounding macros
  nbd: Limit nbdflags to 16 bits
  nbd: Fix bad flag detection on server
  i2c: fix migration regression introduced by broadcast support
  mptsas: really fix migration compatibility
  qdist: return "(empty)" instead of NULL when printing an empty dist
  qdist: use g_renew and g_new instead of g_realloc and g_malloc.
  qdist: fix memory leak during binning
  target-i386: fix typo in xsetbv implementation
  qht: do not segfault when gathering stats from an uninitialized qht
  util: Drop inet_listen()
  util: drop unix_nonblocking_connect()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-08-04 10:24:27 +01:00
parent 29b2517ac7 e911765cbb
commit 09704e6ded
33 changed files with 252 additions and 218 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
backends/hostmem.c
View File

@ -203,6 +203,7 @@ static bool host_memory_backend_get_prealloc(Object *obj, Error **errp)
static void host_memory_backend_set_prealloc(Object *obj, bool value,
Error **errp)
{
Error *local_err = NULL;
HostMemoryBackend *backend = MEMORY_BACKEND(obj);
if (backend->force_prealloc) {
@ -223,7 +224,11 @@ static void host_memory_backend_set_prealloc(Object *obj, bool value,
void *ptr = memory_region_get_ram_ptr(&backend->mr);
uint64_t sz = memory_region_size(&backend->mr);
os_mem_prealloc(fd, ptr, sz);
os_mem_prealloc(fd, ptr, sz, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
backend->prealloc = true;
}
}
@ -286,8 +291,7 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
if (bc->alloc) {
bc->alloc(backend, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
goto out;
}
ptr = memory_region_get_ram_ptr(&backend->mr);
@ -343,9 +347,15 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
* specified NUMA policy in place.
*/
if (backend->prealloc) {
os_mem_prealloc(memory_region_get_fd(&backend->mr), ptr, sz);
os_mem_prealloc(memory_region_get_fd(&backend->mr), ptr, sz,
&local_err);
if (local_err) {
goto out;
}
}
}
out:
error_propagate(errp, local_err);
}
static bool

15
block/io.c
View File

@ -1180,10 +1180,11 @@ static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs,
int alignment = MAX(bs->bl.pwrite_zeroes_alignment,
bs->bl.request_alignment);
assert(is_power_of_2(alignment));
head = offset & (alignment - 1);
tail = (offset + count) & (alignment - 1);
max_write_zeroes &= ~(alignment - 1);
assert(alignment % bs->bl.request_alignment == 0);
head = offset % alignment;
tail = (offset + count) % alignment;
max_write_zeroes = QEMU_ALIGN_DOWN(max_write_zeroes, alignment);
assert(max_write_zeroes >= bs->bl.request_alignment);
while (count > 0 && !ret) {
int num = count;
@ -2429,9 +2430,10 @@ int coroutine_fn bdrv_co_pdiscard(BlockDriverState *bs, int64_t offset,
/* Discard is advisory, so ignore any unaligned head or tail */
align = MAX(bs->bl.pdiscard_alignment, bs->bl.request_alignment);
assert(is_power_of_2(align));
head = MIN(count, -offset & (align - 1));
assert(align % bs->bl.request_alignment == 0);
head = offset % align;
if (head) {
head = MIN(count, align - head);
count -= head;
offset += head;
}
@ -2449,6 +2451,7 @@ int coroutine_fn bdrv_co_pdiscard(BlockDriverState *bs, int64_t offset,
max_pdiscard = QEMU_ALIGN_DOWN(MIN_NON_ZERO(bs->bl.max_pdiscard, INT_MAX),
align);
assert(max_pdiscard);
while (count > 0) {
int ret;

2
block/nbd-client.h
View File

@ -20,7 +20,7 @@
typedef struct NbdClientSession {
QIOChannelSocket *sioc; /* The master data channel */
QIOChannel *ioc; /* The current I/O channel which may differ (eg TLS) */
uint32_t nbdflags;
uint16_t nbdflags;
off_t size;
CoMutex send_mutex;

10
exec.c
View File

@ -1226,7 +1226,7 @@ static void *file_ram_alloc(RAMBlock *block,
char *filename;
char *sanitized_name;
char *c;
void *area;
void *area = MAP_FAILED;
int fd = -1;
int64_t page_size;
@ -1314,13 +1314,19 @@ static void *file_ram_alloc(RAMBlock *block,
}
if (mem_prealloc) {
os_mem_prealloc(fd, area, memory);
os_mem_prealloc(fd, area, memory, errp);
if (errp && *errp) {
goto error;
}
}
block->fd = fd;
return area;
error:
if (area != MAP_FAILED) {
qemu_ram_munmap(area, memory);
}
if (unlink_on_error) {
unlink(path);
}

2
hw/core/qdev.c
View File

@ -354,12 +354,14 @@ void qdev_init_nofail(DeviceState *dev)
assert(!dev->realized);
object_ref(OBJECT(dev));
object_property_set_bool(OBJECT(dev), true, "realized", &err);
if (err) {
error_reportf_err(err, "Initialization of device %s failed: ",
object_get_typename(OBJECT(dev)));
exit(1);
}
object_unref(OBJECT(dev));
}
void qdev_machine_creation_done(void)

10
hw/i2c/core.c
View File

@ -17,6 +17,8 @@ struct I2CNode {
QLIST_ENTRY(I2CNode) next;
};
#define I2C_BROADCAST 0x00
struct I2CBus
{
BusState qbus;
@ -47,6 +49,8 @@ static void i2c_bus_pre_save(void *opaque)
if (!QLIST_EMPTY(&bus->current_devs)) {
if (!bus->broadcast) {
bus->saved_address = QLIST_FIRST(&bus->current_devs)->elt->address;
} else {
bus->saved_address = I2C_BROADCAST;
}
}
}
@ -58,7 +62,6 @@ static const VMStateDescription vmstate_i2c_bus = {
.pre_save = i2c_bus_pre_save,
.fields = (VMStateField[]) {
VMSTATE_UINT8(saved_address, I2CBus),
VMSTATE_BOOL(broadcast, I2CBus),
VMSTATE_END_OF_LIST()
}
};
@ -93,7 +96,7 @@ int i2c_start_transfer(I2CBus *bus, uint8_t address, int recv)
I2CSlaveClass *sc;
I2CNode *node;
if (address == 0x00) {
if (address == I2C_BROADCAST) {
/*
* This is a broadcast, the current_devs will be all the devices of the
* bus.
@ -221,7 +224,8 @@ static int i2c_slave_post_load(void *opaque, int version_id)
I2CNode *node;
bus = I2C_BUS(qdev_get_parent_bus(DEVICE(dev)));
if ((bus->saved_address == dev->address) || (bus->broadcast)) {
if ((bus->saved_address == dev->address) ||
(bus->saved_address == I2C_BROADCAST)) {
node = g_malloc(sizeof(struct I2CNode));
node->elt = dev;
QLIST_INSERT_HEAD(&bus->current_devs, node, next);

36
hw/intc/ioapic.c
View File

@ -21,6 +21,7 @@
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "monitor/monitor.h"
#include "hw/hw.h"
#include "hw/i386/pc.h"
@ -117,21 +118,25 @@ static void ioapic_service(IOAPICCommonState *s)
s->ioredtbl[i] |= IOAPIC_LVT_REMOTE_IRR;
}
if (coalesce) {
/* We are level triggered interrupts, and the
* guest should be still working on previous one,
* so skip it. */
continue;
}
#ifdef CONFIG_KVM
if (kvm_irqchip_is_split()) {
if (info.trig_mode == IOAPIC_TRIGGER_EDGE) {
kvm_set_irq(kvm_state, i, 1);
kvm_set_irq(kvm_state, i, 0);
} else {
if (!coalesce) {
kvm_set_irq(kvm_state, i, 1);
}
kvm_set_irq(kvm_state, i, 1);
}
continue;
}
#else
(void)coalesce;
#endif
/* No matter whether IR is enabled, we translate
* the IOAPIC message into a MSI one, and its
* address space will decide whether we need a
@ -265,7 +270,7 @@ ioapic_mem_read(void *opaque, hwaddr addr, unsigned int size)
val = s->id << IOAPIC_ID_SHIFT;
break;
case IOAPIC_REG_VER:
val = IOAPIC_VERSION |
val = s->version |
((IOAPIC_NUM_PINS - 1) << IOAPIC_VER_ENTRIES_SHIFT);
break;
default:
@ -354,6 +359,13 @@ ioapic_mem_write(void *opaque, hwaddr addr, uint64_t val,
}
}
break;
case IOAPIC_EOI:
/* Explicit EOI is only supported for IOAPIC version 0x20 */
if (size != 4 || s->version != 0x20) {
break;
}
ioapic_eoi_broadcast(val);
break;
}
ioapic_update_kvm_routes(s);
@ -387,6 +399,12 @@ 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: 0x11).");
exit(1);
}
memory_region_init_io(&s->io_memory, OBJECT(s), &ioapic_io_ops, s,
"ioapic", 0x1000);
@ -397,6 +415,11 @@ static void ioapic_realize(DeviceState *dev, Error **errp)
qemu_add_machine_init_done_notifier(&s->machine_done);
}
static Property ioapic_properties[] = {
DEFINE_PROP_UINT8("version", IOAPICCommonState, version, 0x11),
DEFINE_PROP_END_OF_LIST(),
};
static void ioapic_class_init(ObjectClass *klass, void *data)
{
IOAPICCommonClass *k = IOAPIC_COMMON_CLASS(klass);
@ -404,6 +427,7 @@ static void ioapic_class_init(ObjectClass *klass, void *data)
k->realize = ioapic_realize;
dc->reset = ioapic_reset_common;
dc->props = ioapic_properties;
}
static const TypeInfo ioapic_info = {

1
hw/nvram/fw_cfg.c
View File

@ -990,6 +990,7 @@ static void fw_cfg_class_init(ObjectClass *klass, void *data)
static const TypeInfo fw_cfg_info = {
.name = TYPE_FW_CFG,
.parent = TYPE_SYS_BUS_DEVICE,
.abstract = true,
.instance_size = sizeof(FWCfgState),
.class_init = fw_cfg_class_init,
};

4
hw/scsi/mptsas.c
View File

@ -1295,6 +1295,8 @@ static void mptsas_scsi_init(PCIDevice *dev, Error **errp)
/* With msi=auto, we fall back to MSI off silently */
error_free(err);
/* Only used for migration. */
s->msi_in_use = (ret == 0);
}
memory_region_init_io(&s->mmio_io, OBJECT(s), &mptsas_mmio_ops, s,
@ -1370,7 +1372,7 @@ static const VMStateDescription vmstate_mptsas = {
.post_load = mptsas_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(dev, MPTSASState),
VMSTATE_UNUSED(sizeof(bool)), /* Was msi_in_use */
VMSTATE_BOOL(msi_in_use, MPTSASState),
VMSTATE_UINT32(state, MPTSASState),
VMSTATE_UINT8(who_init, MPTSASState),
VMSTATE_UINT8(doorbell_state, MPTSASState),

2
hw/scsi/mptsas.h
View File

@ -31,6 +31,8 @@ struct MPTSASState {
OnOffAuto msi;
uint64_t sas_addr;
bool msi_in_use;
/* Doorbell register */
uint32_t state;
uint8_t who_init;

37
include/block/block_int.h
View File

@ -330,36 +330,39 @@ typedef struct BlockLimits {
* otherwise. */
uint32_t request_alignment;
/* maximum number of bytes that can be discarded at once (since it
* is signed, it must be < 2G, if set), should be multiple of
/* Maximum number of bytes that can be discarded at once (since it
* is signed, it must be < 2G, if set). Must be multiple of
* pdiscard_alignment, but need not be power of 2. May be 0 if no
* inherent 32-bit limit */
int32_t max_pdiscard;
/* optimal alignment for discard requests in bytes, must be power
* of 2, less than max_pdiscard if that is set, and multiple of
* bl.request_alignment. May be 0 if bl.request_alignment is good
* enough */
/* Optimal alignment for discard requests in bytes. A power of 2
* is best but not mandatory. Must be a multiple of
* bl.request_alignment, and must be less than max_pdiscard if
* that is set. May be 0 if bl.request_alignment is good enough */
uint32_t pdiscard_alignment;
/* maximum number of bytes that can zeroized at once (since it is
* signed, it must be < 2G, if set), should be multiple of
/* Maximum number of bytes that can zeroized at once (since it is
* signed, it must be < 2G, if set). Must be multiple of
* pwrite_zeroes_alignment. May be 0 if no inherent 32-bit limit */
int32_t max_pwrite_zeroes;
/* optimal alignment for write zeroes requests in bytes, must be
* power of 2, less than max_pwrite_zeroes if that is set, and
* multiple of bl.request_alignment. May be 0 if
* bl.request_alignment is good enough */
/* Optimal alignment for write zeroes requests in bytes. A power
* of 2 is best but not mandatory. Must be a multiple of
* bl.request_alignment, and must be less than max_pwrite_zeroes
* if that is set. May be 0 if bl.request_alignment is good
* enough */
uint32_t pwrite_zeroes_alignment;
/* optimal transfer length in bytes (must be power of 2, and
* multiple of bl.request_alignment), or 0 if no preferred size */
/* Optimal transfer length in bytes. A power of 2 is best but not
* mandatory. Must be a multiple of bl.request_alignment, or 0 if
* no preferred size */
uint32_t opt_transfer;
/* maximal transfer length in bytes (need not be power of 2, but
* should be multiple of opt_transfer), or 0 for no 32-bit limit.
* For now, anything larger than INT_MAX is clamped down. */
/* Maximal transfer length in bytes. Need not be power of 2, but
* must be multiple of opt_transfer and bl.request_alignment, or 0
* for no 32-bit limit. For now, anything larger than INT_MAX is
* clamped down. */
uint32_t max_transfer;
/* memory alignment, in bytes so that no bounce buffer is needed */

6
include/block/nbd.h
View File

@ -90,11 +90,11 @@ ssize_t nbd_wr_syncv(QIOChannel *ioc,
size_t niov,
size_t length,
bool do_read);
int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint32_t *flags,
int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
QCryptoTLSCreds *tlscreds, const char *hostname,
QIOChannel **outioc,
off_t *size, Error **errp);
int nbd_init(int fd, QIOChannelSocket *sioc, uint32_t flags, off_t size);
int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size);
ssize_t nbd_send_request(QIOChannel *ioc, struct nbd_request *request);
ssize_t nbd_receive_reply(QIOChannel *ioc, struct nbd_reply *reply);
int nbd_client(int fd);
@ -104,7 +104,7 @@ typedef struct NBDExport NBDExport;
typedef struct NBDClient NBDClient;
NBDExport *nbd_export_new(BlockBackend *blk, off_t dev_offset, off_t size,
uint32_t nbdflags, void (*close)(NBDExport *),
uint16_t nbdflags, void (*close)(NBDExport *),
Error **errp);
void nbd_export_close(NBDExport *exp);
void nbd_export_get(NBDExport *exp);

4
include/hw/i386/ioapic_internal.h
View File

@ -29,8 +29,6 @@
#define MAX_IOAPICS 1
#define IOAPIC_VERSION 0x11
#define IOAPIC_LVT_DEST_SHIFT 56
#define IOAPIC_LVT_DEST_IDX_SHIFT 48
#define IOAPIC_LVT_MASKED_SHIFT 16
@ -71,6 +69,7 @@
#define IOAPIC_IOREGSEL 0x00
#define IOAPIC_IOWIN 0x10
#define IOAPIC_EOI 0x40
#define IOAPIC_REG_ID 0x00
#define IOAPIC_REG_VER 0x01
@ -109,6 +108,7 @@ struct IOAPICCommonState {
uint32_t irr;
uint64_t ioredtbl[IOAPIC_NUM_PINS];
Notifier machine_done;
uint8_t version;
};
void ioapic_reset_common(DeviceState *dev);

2
include/hw/i386/pc.h
View File

@ -388,7 +388,7 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
.value = "off",\
},\
{\
.driver = "apic",\
.driver = "apic-common",\
.property = "legacy-instance-id",\
.value = "on",\
},

8
include/qemu/osdep.h
View File

@ -158,7 +158,8 @@ extern int daemon(int, int);
/* Round number down to multiple */
#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
/* Round number up to multiple */
/* Round number up to multiple. Safe when m is not a power of 2 (see
* ROUND_UP for a faster version when a power of 2 is guaranteed) */
#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))
/* Check if n is a multiple of m */
@ -175,6 +176,9 @@ extern int daemon(int, int);
/* Check if pointer p is n-bytes aligned */
#define QEMU_PTR_IS_ALIGNED(p, n) QEMU_IS_ALIGNED((uintptr_t)(p), (n))
/* Round number up to multiple. Requires that d be a power of 2 (see
* QEMU_ALIGN_UP for a safer but slower version on arbitrary
* numbers) */
#ifndef ROUND_UP
#define ROUND_UP(n,d) (((n) + (d) - 1) & -(d))
#endif
@ -379,7 +383,7 @@ unsigned long qemu_getauxval(unsigned long type);
void qemu_set_tty_echo(int fd, bool echo);
void os_mem_prealloc(int fd, char *area, size_t sz);
void os_mem_prealloc(int fd, char *area, size_t sz, Error **errp);
int qemu_read_password(char *buf, int buf_size);

5
include/qemu/qht.h
View File

@ -69,6 +69,9 @@ void qht_destroy(struct qht *ht);
* Attempting to insert a NULL @p is a bug.
* Inserting the same pointer @p with different @hash values is a bug.
*
* In case of successful operation, smp_wmb() is implied before the pointer is
* inserted into the hash table.
*
* Returns true on sucess.
* Returns false if the @p-@hash pair already exists in the hash table.
*/
@ -83,6 +86,8 @@ bool qht_insert(struct qht *ht, void *p, uint32_t hash);
*
* Needs to be called under an RCU read-critical section.
*
* smp_read_barrier_depends() is implied before the call to @func.
*
* The user-provided @func compares pointers in QHT against @userp.
* If the function returns true, a match has been found.
*

8
include/qemu/sockets.h
View File

@ -33,20 +33,12 @@ int socket_set_fast_reuse(int fd);
typedef void NonBlockingConnectHandler(int fd, Error *err, void *opaque);
InetSocketAddress *inet_parse(const char *str, Error **errp);
int inet_listen(const char *str, char *ostr, int olen,
int socktype, int port_offset, Error **errp);
int inet_connect(const char *str, Error **errp);
int inet_nonblocking_connect(const char *str,
NonBlockingConnectHandler *callback,
void *opaque, Error **errp);
NetworkAddressFamily inet_netfamily(int family);
int unix_listen(const char *path, char *ostr, int olen, Error **errp);
int unix_connect(const char *path, Error **errp);
int unix_nonblocking_connect(const char *str,
NonBlockingConnectHandler *callback,
void *opaque, Error **errp);
SocketAddress *socket_parse(const char *str, Error **errp);
int socket_connect(SocketAddress *addr, Error **errp,

28
nbd/client.c
View File

@ -408,7 +408,7 @@ static QIOChannel *nbd_receive_starttls(QIOChannel *ioc,
}
int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint32_t *flags,
int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
QCryptoTLSCreds *tlscreds, const char *hostname,
QIOChannel **outioc,
off_t *size, Error **errp)
@ -468,7 +468,6 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint32_t *flags,
uint32_t opt;
uint32_t namesize;
uint16_t globalflags;
uint16_t exportflags;
bool fixedNewStyle = false;
if (read_sync(ioc, &globalflags, sizeof(globalflags)) !=
@ -477,7 +476,6 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint32_t *flags,
goto fail;
}
globalflags = be16_to_cpu(globalflags);
*flags = globalflags << 16;
TRACE("Global flags are %" PRIx32, globalflags);
if (globalflags & NBD_FLAG_FIXED_NEWSTYLE) {
fixedNewStyle = true;
@ -545,17 +543,15 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint32_t *flags,
goto fail;
}
*size = be64_to_cpu(s);
TRACE("Size is %" PRIu64, *size);
if (read_sync(ioc, &exportflags, sizeof(exportflags)) !=
sizeof(exportflags)) {
if (read_sync(ioc, flags, sizeof(*flags)) != sizeof(*flags)) {
error_setg(errp, "Failed to read export flags");
goto fail;
}
exportflags = be16_to_cpu(exportflags);
*flags |= exportflags;
TRACE("Export flags are %" PRIx16, exportflags);
be16_to_cpus(flags);
} else if (magic == NBD_CLIENT_MAGIC) {
uint32_t oldflags;
if (name) {
error_setg(errp, "Server does not support export names");
goto fail;
@ -572,16 +568,22 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint32_t *flags,
*size = be64_to_cpu(s);
TRACE("Size is %" PRIu64, *size);
if (read_sync(ioc, flags, sizeof(*flags)) != sizeof(*flags)) {
if (read_sync(ioc, &oldflags, sizeof(oldflags)) != sizeof(oldflags)) {
error_setg(errp, "Failed to read export flags");
goto fail;
}
*flags = be32_to_cpu(*flags);
be32_to_cpus(&oldflags);
if (oldflags & ~0xffff) {
error_setg(errp, "Unexpected export flags %0x" PRIx32, oldflags);
goto fail;
}
*flags = oldflags;
} else {
error_setg(errp, "Bad magic received");
goto fail;
}
TRACE("Size is %" PRIu64 ", export flags %" PRIx16, *size, *flags);
if (read_sync(ioc, &buf, 124) != 124) {
error_setg(errp, "Failed to read reserved block");
goto fail;
@ -593,7 +595,7 @@ fail:
}
#ifdef __linux__
int nbd_init(int fd, QIOChannelSocket *sioc, uint32_t flags, off_t size)
int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size)
{
unsigned long sectors = size / BDRV_SECTOR_SIZE;
if (size / BDRV_SECTOR_SIZE != sectors) {
@ -689,7 +691,7 @@ int nbd_disconnect(int fd)
}
#else
int nbd_init(int fd, QIOChannelSocket *ioc, uint32_t flags, off_t size)
int nbd_init(int fd, QIOChannelSocket *ioc, uint16_t flags, off_t size)
{
return -ENOTSUP;
}

13
nbd/server.c
View File

@ -63,7 +63,7 @@ struct NBDExport {
char *name;
off_t dev_offset;
off_t size;
uint32_t nbdflags;
uint16_t nbdflags;
QTAILQ_HEAD(, NBDClient) clients;
QTAILQ_ENTRY(NBDExport) next;
@ -544,8 +544,8 @@ static coroutine_fn int nbd_negotiate(NBDClientNewData *data)
NBDClient *client = data->client;
char buf[8 + 8 + 8 + 128];
int rc;
const int myflags = (NBD_FLAG_HAS_FLAGS | NBD_FLAG_SEND_TRIM |
NBD_FLAG_SEND_FLUSH | NBD_FLAG_SEND_FUA);
const uint16_t myflags = (NBD_FLAG_HAS_FLAGS | NBD_FLAG_SEND_TRIM |
NBD_FLAG_SEND_FLUSH | NBD_FLAG_SEND_FUA);
bool oldStyle;
/* Old style negotiation header without options
@ -575,7 +575,6 @@ static coroutine_fn int nbd_negotiate(NBDClientNewData *data)
oldStyle = client->exp != NULL && !client->tlscreds;
if (oldStyle) {
assert ((client->exp->nbdflags & ~65535) == 0);
TRACE("advertising size %" PRIu64 " and flags %x",
client->exp->size, client->exp->nbdflags | myflags);
stq_be_p(buf + 8, NBD_CLIENT_MAGIC);
@ -606,7 +605,6 @@ static coroutine_fn int nbd_negotiate(NBDClientNewData *data)
goto fail;
}
assert ((client->exp->nbdflags & ~65535) == 0);
TRACE("advertising size %" PRIu64 " and flags %x",
client->exp->size, client->exp->nbdflags | myflags);
stq_be_p(buf + 18, client->exp->size);
@ -810,7 +808,7 @@ static void nbd_eject_notifier(Notifier *n, void *data)
}
NBDExport *nbd_export_new(BlockBackend *blk, off_t dev_offset, off_t size,
uint32_t nbdflags, void (*close)(NBDExport *),
uint16_t nbdflags, void (*close)(NBDExport *),
Error **errp)
{
NBDExport *exp = g_malloc0(sizeof(NBDExport));
@ -1057,7 +1055,8 @@ static ssize_t nbd_co_receive_request(NBDRequest *req,
if (request->type & ~NBD_CMD_MASK_COMMAND & ~NBD_CMD_FLAG_FUA) {
LOG("unsupported flags (got 0x%x)",
request->type & ~NBD_CMD_MASK_COMMAND);
return -EINVAL;
rc = -EINVAL;
goto out;
}
rc = 0;

1
numa.c
View File

@ -463,6 +463,7 @@ void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
exit(1);
}
host_memory_backend_set_mapped(backend, true);
memory_region_add_subregion(mr, addr, seg);
vmstate_register_ram_global(seg);
addr += size;

4
qemu-nbd.c
View File

@ -251,7 +251,7 @@ static void *nbd_client_thread(void *arg)
{
char *device = arg;
off_t size;
uint32_t nbdflags;
uint16_t nbdflags;
QIOChannelSocket *sioc;
int fd;
int ret;
@ -465,7 +465,7 @@ int main(int argc, char **argv)
BlockBackend *blk;
BlockDriverState *bs;
off_t dev_offset = 0;
uint32_t nbdflags = 0;
uint16_t nbdflags = 0;
bool disconnect = false;
const char *bindto = "0.0.0.0";
const char *port = NULL;

29
qemu-options.hx
View File

@ -927,10 +927,25 @@ ETEXI
DEF("display", HAS_ARG, QEMU_OPTION_display,
"-display sdl[,frame=on|off][,alt_grab=on|off][,ctrl_grab=on|off]\n"
" [,window_close=on|off]|curses|none|\n"
" gtk[,grab_on_hover=on|off]|\n"
" vnc=<display>[,<optargs>]\n"
" select display type\n", QEMU_ARCH_ALL)
" [,window_close=on|off][,gl=on|off]|curses|none|\n"
"-display gtk[,grab_on_hover=on|off][,gl=on|off]|\n"
"-display vnc=<display>[,<optargs>]\n"
"-display curses\n"
"-display none"
" select display type\n"
"The default display is equivalent to\n"
#if defined(CONFIG_GTK)
"\t\"-display gtk\"\n"
#elif defined(CONFIG_SDL)
"\t\"-display sdl\"\n"
#elif defined(CONFIG_COCOA)
"\t\"-display cocoa\"\n"
#elif defined(CONFIG_VNC)
"\t\"-vnc localhost:0,to=99,id=default\"\n"
#else
"\t\"-display none\"\n"
#endif
, QEMU_ARCH_ALL)
STEXI
@item -display @var{type}
@findex -display
@ -977,7 +992,7 @@ the console and monitor.
ETEXI
DEF("curses", 0, QEMU_OPTION_curses,
"-curses use a curses/ncurses interface instead of SDL\n",
"-curses shorthand for -display curses\n",
QEMU_ARCH_ALL)
STEXI
@item -curses
@ -1027,7 +1042,7 @@ Disable SDL window close capability.
ETEXI
DEF("sdl", 0, QEMU_OPTION_sdl,
"-sdl enable SDL\n", QEMU_ARCH_ALL)
"-sdl shorthand for -display sdl\n", QEMU_ARCH_ALL)
STEXI
@item -sdl
@findex -sdl
@ -1224,7 +1239,7 @@ Set the initial graphical resolution and depth (PPC, SPARC only).
ETEXI
DEF("vnc", HAS_ARG, QEMU_OPTION_vnc ,
"-vnc display start a VNC server on display\n", QEMU_ARCH_ALL)
"-vnc <display> shorthand for -display vnc=<display>\n", QEMU_ARCH_ALL)
STEXI
@item -vnc @var{display}[,@var{option}[,@var{option}[,...]]]
@findex -vnc

5
scripts/checkpatch.pl
View File

@ -2544,7 +2544,7 @@ sub process {
}
}
# check for non-portable ffs() calls that have portable alternatives in QEMU
# check for non-portable libc calls that have portable alternatives in QEMU
if ($line =~ /\bffs\(/) {
ERROR("use ctz32() instead of ffs()\n" . $herecurr);
}
@ -2554,6 +2554,9 @@ sub process {
if ($line =~ /\bffsll\(/) {
ERROR("use ctz64() instead of ffsll()\n" . $herecurr);
}
if ($line =~ /\bbzero\(/) {
ERROR("use memset() instead of bzero()\n" . $herecurr);
}
}
# If we have no input at all, then there is nothing to report on

2
target-i386/translate.c
View File

@ -7176,7 +7176,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[R_ECX]);
gen_helper_xsetbv(cpu_env, cpu_tmp2_i32, cpu_tmp1_i64);
/* End TB because translation flags may change. */
gen_jmp_im(s->pc - pc_start);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
break;

10
tests/test-qdist.c
View File

@ -360,10 +360,16 @@ static void test_none(void)
g_assert(isnan(qdist_xmax(&dist)));
pr = qdist_pr_plain(&dist, 0);
g_assert(pr == NULL);
g_assert_cmpstr(pr, ==, "(empty)");
g_free(pr);
pr = qdist_pr_plain(&dist, 2);
g_assert(pr == NULL);
g_assert_cmpstr(pr, ==, "(empty)");
g_free(pr);
pr = qdist_pr(&dist, 0, QDIST_PR_BORDER);
g_assert_cmpstr(pr, ==, "(empty)");
g_free(pr);
qdist_destroy(&dist);
}

4
tests/test-qht.c
View File

@ -95,8 +95,12 @@ static void iter_check(unsigned int count)
static void qht_do_test(unsigned int mode, size_t init_entries)
{
/* under KVM we might fetch stats from an uninitialized qht */
check_n(0);
qht_init(&ht, 0, mode);
check_n(0);
insert(0, N);
check(0, N, true);
check_n(N);

70
translate-all.c
View File

@ -1663,15 +1663,50 @@ void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr)
TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));
}
static void print_qht_statistics(FILE *f, fprintf_function cpu_fprintf,
struct qht_stats hst)
{
uint32_t hgram_opts;
size_t hgram_bins;
char *hgram;
if (!hst.head_buckets) {
return;
}
cpu_fprintf(f, "TB hash buckets %zu/%zu (%0.2f%% head buckets used)\n",
hst.used_head_buckets, hst.head_buckets,
(double)hst.used_head_buckets / hst.head_buckets * 100);
hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
hgram_opts |= QDIST_PR_100X | QDIST_PR_PERCENT;
if (qdist_xmax(&hst.occupancy) - qdist_xmin(&hst.occupancy) == 1) {
hgram_opts |= QDIST_PR_NODECIMAL;
}
hgram = qdist_pr(&hst.occupancy, 10, hgram_opts);
cpu_fprintf(f, "TB hash occupancy %0.2f%% avg chain occ. Histogram: %s\n",
qdist_avg(&hst.occupancy) * 100, hgram);
g_free(hgram);
hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
hgram_bins = qdist_xmax(&hst.chain) - qdist_xmin(&hst.chain);
if (hgram_bins > 10) {
hgram_bins = 10;
} else {
hgram_bins = 0;
hgram_opts |= QDIST_PR_NODECIMAL | QDIST_PR_NOBINRANGE;
}
hgram = qdist_pr(&hst.chain, hgram_bins, hgram_opts);
cpu_fprintf(f, "TB hash avg chain %0.3f buckets. Histogram: %s\n",
qdist_avg(&hst.chain), hgram);
g_free(hgram);
}
void dump_exec_info(FILE *f, fprintf_function cpu_fprintf)
{
int i, target_code_size, max_target_code_size;
int direct_jmp_count, direct_jmp2_count, cross_page;
TranslationBlock *tb;
struct qht_stats hst;
uint32_t hgram_opts;
size_t hgram_bins;
char *hgram;
target_code_size = 0;
max_target_code_size = 0;
@ -1724,34 +1759,7 @@ void dump_exec_info(FILE *f, fprintf_function cpu_fprintf)
tcg_ctx.tb_ctx.nb_tbs : 0);
qht_statistics_init(&tcg_ctx.tb_ctx.htable, &hst);
cpu_fprintf(f, "TB hash buckets %zu/%zu (%0.2f%% head buckets used)\n",
hst.used_head_buckets, hst.head_buckets,
(double)hst.used_head_buckets / hst.head_buckets * 100);
hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
hgram_opts |= QDIST_PR_100X | QDIST_PR_PERCENT;
if (qdist_xmax(&hst.occupancy) - qdist_xmin(&hst.occupancy) == 1) {
hgram_opts |= QDIST_PR_NODECIMAL;
}
hgram = qdist_pr(&hst.occupancy, 10, hgram_opts);
cpu_fprintf(f, "TB hash occupancy %0.2f%% avg chain occ. Histogram: %s\n",
qdist_avg(&hst.occupancy) * 100, hgram);
g_free(hgram);
hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
hgram_bins = qdist_xmax(&hst.chain) - qdist_xmin(&hst.chain);
if (hgram_bins > 10) {
hgram_bins = 10;
} else {
hgram_bins = 0;
hgram_opts |= QDIST_PR_NODECIMAL | QDIST_PR_NOBINRANGE;
}
hgram = qdist_pr(&hst.chain, hgram_bins, hgram_opts);
cpu_fprintf(f, "TB hash avg chain %0.3f buckets. Histogram: %s\n",
qdist_avg(&hst.chain), hgram);
g_free(hgram);
print_qht_statistics(f, cpu_fprintf, hst);
qht_statistics_destroy(&hst);
cpu_fprintf(f, "\nStatistics:\n");

3
util/iov.c
View File

@ -247,7 +247,8 @@ unsigned iov_copy(struct iovec *dst_iov, unsigned int dst_iov_cnt,
{
size_t len;
unsigned int i, j;
for (i = 0, j = 0; i < iov_cnt && j < dst_iov_cnt && bytes; i++) {
for (i = 0, j = 0;
i < iov_cnt && j < dst_iov_cnt && (offset || bytes); i++) {
if (offset >= iov[i].iov_len) {
offset -= iov[i].iov_len;
continue;

28
util/oslib-posix.c
View File

@ -318,7 +318,7 @@ static void sigbus_handler(int signal)
siglongjmp(sigjump, 1);
}
void os_mem_prealloc(int fd, char *area, size_t memory)
void os_mem_prealloc(int fd, char *area, size_t memory, Error **errp)
{
int ret;
struct sigaction act, oldact;
@ -330,8 +330,9 @@ void os_mem_prealloc(int fd, char *area, size_t memory)
ret = sigaction(SIGBUS, &act, &oldact);
if (ret) {
perror("os_mem_prealloc: failed to install signal handler");
exit(1);
error_setg_errno(errp, errno,
"os_mem_prealloc: failed to install signal handler");
return;
}
/* unblock SIGBUS */
@ -340,9 +341,8 @@ void os_mem_prealloc(int fd, char *area, size_t memory)
pthread_sigmask(SIG_UNBLOCK, &set, &oldset);
if (sigsetjmp(sigjump, 1)) {
fprintf(stderr, "os_mem_prealloc: Insufficient free host memory "
"pages available to allocate guest RAM\n");
exit(1);
error_setg(errp, "os_mem_prealloc: Insufficient free host memory "
"pages available to allocate guest RAM\n");
} else {
int i;
size_t hpagesize = qemu_fd_getpagesize(fd);
@ -352,15 +352,15 @@ void os_mem_prealloc(int fd, char *area, size_t memory)
for (i = 0; i < numpages; i++) {
memset(area + (hpagesize * i), 0, 1);
}
ret = sigaction(SIGBUS, &oldact, NULL);
if (ret) {
perror("os_mem_prealloc: failed to reinstall signal handler");
exit(1);
}
pthread_sigmask(SIG_SETMASK, &oldset, NULL);
}
ret = sigaction(SIGBUS, &oldact, NULL);
if (ret) {
/* Terminate QEMU since it can't recover from error */
perror("os_mem_prealloc: failed to reinstall signal handler");
exit(1);
}
pthread_sigmask(SIG_SETMASK, &oldset, NULL);
}

2
util/oslib-win32.c
View File

@ -539,7 +539,7 @@ int getpagesize(void)
return system_info.dwPageSize;
}
void os_mem_prealloc(int fd, char *area, size_t memory)
void os_mem_prealloc(int fd, char *area, size_t memory, Error **errp)
{
int i;
size_t pagesize = getpagesize();

13
util/qdist.c
View File

@ -14,9 +14,11 @@
#define NAN (0.0 / 0.0)
#endif
#define QDIST_EMPTY_STR "(empty)"
void qdist_init(struct qdist *dist)
{
dist->entries = g_malloc(sizeof(*dist->entries));
dist->entries = g_new(struct qdist_entry, 1);
dist->size = 1;
dist->n = 0;
}
@ -62,8 +64,7 @@ void qdist_add(struct qdist *dist, double x, long count)
if (unlikely(dist->n == dist->size)) {
dist->size *= 2;
dist->entries = g_realloc(dist->entries,
sizeof(*dist->entries) * (dist->size));
dist->entries = g_renew(struct qdist_entry, dist->entries, dist->size);
}
dist->n++;
entry = &dist->entries[dist->n - 1];
@ -188,7 +189,7 @@ void qdist_bin__internal(struct qdist *to, const struct qdist *from, size_t n)
}
}
/* they're equally spaced, so copy the dist and bail out */
to->entries = g_new(struct qdist_entry, from->n);
to->entries = g_renew(struct qdist_entry, to->entries, n);
to->n = from->n;
memcpy(to->entries, from->entries, sizeof(*to->entries) * to->n);
return;
@ -234,7 +235,7 @@ char *qdist_pr_plain(const struct qdist *dist, size_t n)
char *ret;
if (dist->n == 0) {
return NULL;
return g_strdup(QDIST_EMPTY_STR);
}
qdist_bin__internal(&binned, dist, n);
ret = qdist_pr_internal(&binned);
@ -309,7 +310,7 @@ char *qdist_pr(const struct qdist *dist, size_t n_bins, uint32_t opt)
GString *s;
if (dist->n == 0) {
return NULL;
return g_strdup(QDIST_EMPTY_STR);
}
s = g_string_new("");

74
util/qemu-sockets.c
View File

@ -624,34 +624,6 @@ fail:
return NULL;
}
int inet_listen(const char *str, char *ostr, int olen,
int socktype, int port_offset, Error **errp)
{
char *optstr;
int sock = -1;
InetSocketAddress *addr;
addr = inet_parse(str, errp);
if (addr != NULL) {
sock = inet_listen_saddr(addr, port_offset, true, errp);
if (sock != -1 && ostr) {
optstr = strchr(str, ',');
if (addr->ipv6) {
snprintf(ostr, olen, "[%s]:%s%s",
addr->host,
addr->port,
optstr ? optstr : "");
} else {
snprintf(ostr, olen, "%s:%s%s",
addr->host,
addr->port,
optstr ? optstr : "");
}
}
qapi_free_InetSocketAddress(addr);
}
return sock;
}
/**
* Create a blocking socket and connect it to an address.
@ -674,36 +646,6 @@ int inet_connect(const char *str, Error **errp)
return sock;
}
/**
* Create a non-blocking socket and connect it to an address.
* Calls the callback function with fd in case of success or -1 in case of
* error.
*
* @str: address string
* @callback: callback function that is called when connect completes,
* cannot be NULL.
* @opaque: opaque for callback function
* @errp: set in case of an error
*
* Returns: -1 on immediate error, file descriptor on success.
**/
int inet_nonblocking_connect(const char *str,
NonBlockingConnectHandler *callback,
void *opaque, Error **errp)
{
int sock = -1;
InetSocketAddress *addr;
g_assert(callback != NULL);
addr = inet_parse(str, errp);
if (addr != NULL) {
sock = inet_connect_saddr(addr, errp, callback, opaque);
qapi_free_InetSocketAddress(addr);
}
return sock;
}
#ifndef _WIN32
static int unix_listen_saddr(UnixSocketAddress *saddr,
@ -893,22 +835,6 @@ int unix_connect(const char *path, Error **errp)
}
int unix_nonblocking_connect(const char *path,
NonBlockingConnectHandler *callback,
void *opaque, Error **errp)
{
UnixSocketAddress *saddr;
int sock = -1;
g_assert(callback != NULL);
saddr = g_new0(UnixSocketAddress, 1);
saddr->path = g_strdup(path);
sock = unix_connect_saddr(saddr, errp, callback, opaque);
qapi_free_UnixSocketAddress(saddr);
return sock;
}
SocketAddress *socket_parse(const char *str, Error **errp)
{
SocketAddress *addr;

14
util/qht.c
View File

@ -445,7 +445,11 @@ void *qht_do_lookup(struct qht_bucket *head, qht_lookup_func_t func,
do {
for (i = 0; i < QHT_BUCKET_ENTRIES; i++) {
if (b->hashes[i] == hash) {
void *p = atomic_read(&b->pointers[i]);
/* The pointer is dereferenced before seqlock_read_retry,
* so (unlike qht_insert__locked) we need to use
* atomic_rcu_read here.
*/
void *p = atomic_rcu_read(&b->pointers[i]);
if (likely(p) && likely(func(p, userp))) {
return p;
@ -535,6 +539,7 @@ static bool qht_insert__locked(struct qht *ht, struct qht_map *map,
atomic_rcu_set(&prev->next, b);
}
b->hashes[i] = hash;
/* smp_wmb() implicit in seqlock_write_begin. */
atomic_set(&b->pointers[i], p);
seqlock_write_end(&head->sequence);
return true;
@ -784,11 +789,16 @@ void qht_statistics_init(struct qht *ht, struct qht_stats *stats)
map = atomic_rcu_read(&ht->map);
stats->head_buckets = map->n_buckets;
stats->used_head_buckets = 0;
stats->entries = 0;
qdist_init(&stats->chain);
qdist_init(&stats->occupancy);
/* bail out if the qht has not yet been initialized */
if (unlikely(map == NULL)) {
stats->head_buckets = 0;
return;
}
stats->head_buckets = map->n_buckets;
for (i = 0; i < map->n_buckets; i++) {
struct qht_bucket *head = &map->buckets[i];