Fix bugs in NBD_CMD_CACHE, drop support for oldstyle NBD server,
minor build and doc fixes
- Denis V. Lunev: nbd: fix NBD_CMD_CACHE negitiation... [retitled]
- Vladimir Sementsov-Ogievskiy: 0/2 server: drop old-style negotiation
- Eric Blake: qemu-nbd: Document --tls-creds
- Vladimir Sementsov-Ogievskiy: nbd/server: fix NBD_CMD_CACHE
- Peter Maydell: nbd: Don't take address of fields in packed structs
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Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2018-10-03-v2' into staging
nbd patches for 2018-10-03
Fix bugs in NBD_CMD_CACHE, drop support for oldstyle NBD server,
minor build and doc fixes
- Denis V. Lunev: nbd: fix NBD_CMD_CACHE negitiation... [retitled]
- Vladimir Sementsov-Ogievskiy: 0/2 server: drop old-style negotiation
- Eric Blake: qemu-nbd: Document --tls-creds
- Vladimir Sementsov-Ogievskiy: nbd/server: fix NBD_CMD_CACHE
- Peter Maydell: nbd: Don't take address of fields in packed structs
# gpg: Signature made Thu 04 Oct 2018 15:19:32 BST
# gpg: using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg: aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A
* remotes/ericb/tags/pull-nbd-2018-10-03-v2:
nbd: fix NBD_FLAG_SEND_CACHE value
nbd/server: drop old-style negotiation
qemu-nbd: drop old-style negotiation
qemu-nbd: Document --tls-creds
nbd/server: fix NBD_CMD_CACHE
nbd: Don't take address of fields in packed structs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit bc37b06a5 added NBD_CMD_CACHE support, but used the wrong value
for NBD_FLAG_SEND_CACHE flag for negotiation. That commit picked bit 8,
which had already been assigned by the NBD specification to mean
NBD_FLAG_CAN_MULTI_CONN, and which was already implemented in the
Linux kernel as a part of stable userspace-kernel API since 4.10:
"bit 8, NBD_FLAG_CAN_MULTI_CONN: Indicates that the server operates
entirely without cache, or that the cache it uses is shared among all
connections to the given device. In particular, if this flag is
present, then the effects of NBD_CMD_FLUSH and NBD_CMD_FLAG_FUA
MUST be visible across all connections when the server sends its reply
to that command to the client. In the absense of this flag, clients
SHOULD NOT multiplex their commands over more than one connection to
the export.
...
bit 10, NBD_FLAG_SEND_CACHE: documents that the server understands
NBD_CMD_CACHE; however, note that server implementations exist
which support the command without advertising this bit, and
conversely that this bit does not guarantee that the command will
succeed or have an impact."
Consequences:
- a client trying to use NBD_CMD_CACHE per the NBD spec will not
see the feature as available from a qemu 3.0 server (not fatal,
clients already have to be prepared for caching to not exist)
- a client accidentally coded to the qemu 3.0 bit value instead
of following the spec may interpret NBD_CMD_CACHE as being available
when it is not (probably not fatal, the spec says the server should
gracefully fail unknown commands, and that clients of NBD_CMD_CACHE
should be prepared for failure even when the feature is advertised);
such clients are unlikely (perhaps only in unreleased Virtuozzo code),
and will disappear over time
- a client prepared to use multiple connections based on
NBD_FLAG_CAN_MULTI_CONN may cause data corruption when it assumes
that caching is consistent when in reality qemu 3.0 did not have
a consistent cache. Partially mitigated by using read-only
connections (where nothing needs to be flushed, so caching is
indeed consistent) or when using qemu-nbd with the default -e 1
(at most one client at a time); visible only when using -e 2 or
more for a writable export.
Thus the commit fixes negotiation flag in QEMU according to the
specification.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
CC: Valery Vdovin <valery.vdovin@acronis.com>
CC: Eric Blake <eblake@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: qemu-stable@nongnu.org
Message-Id: <20181004100313.4253-1-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: enhance commit message, add defines for unimplemented flags]
Signed-off-by: Eric Blake <eblake@redhat.com>
The problem with the various serial devices has been fixed a while
ago in commit 47c4f85a0c ("hw/char/serial:
Allow disconnected chardevs") already, so we can remove these entries
from the "ignore" list in the device-crash-test script now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1538403190-27146-1-git-send-email-thuth@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This reverts commit 0ea47d0f36.
scripts/argparse.py was removed from the tree, so we don't
need this hack anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180618225131.13113-4-ehabkost@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This reverts commit c2d3189667.
scripts/argparse.py was removed from the tree, so we don't need
this hack anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180618225131.13113-3-ehabkost@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
The device-crash-test script is already inside the 'scripts'
directory, there's no need to add the directory manually to
sys.path.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20180618225131.13113-2-ehabkost@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
After the previous commit, nbd_client_new's first parameter is always
NULL. Let's drop it with all corresponding old-style negotiation code
path which is unreachable now.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20181003170228.95973-3-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: re-wrap short line]
Signed-off-by: Eric Blake <eblake@redhat.com>
Use new-style negotiation always, with default "" (empty) export name
if it is not specified with '-x' option.
qemu as client can manage either style since 2.6.0, commit 69b49502d8
For comparison:
nbd 3.10 dropped oldstyle long ago (Mar 2015):
https://github.com/NetworkBlockDevice/nbd/commit/36940193
nbdkit 1.3 switched its default to newstyle (Jan 2018):
https://github.com/libguestfs/nbdkit/commit/b2a8aecchttps://github.com/libguestfs/nbdkit/commit/8158e773
Furthermore, if a client that only speaks oldstyle still needs to
communicate to qemu, nbdkit remains available to perform the
translation between the two protocols.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20181003170228.95973-2-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: enhance commit message]
Signed-off-by: Eric Blake <eblake@redhat.com>
Commit 145614a1 introduced --tls-creds and documented it in
qemu-nbd.texi, but forgot to document it in 'qemu-nbd --help'.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20181003180426.602765-1-eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
We should not go to structured-read branch on CACHE command, fix that.
Bug introduced in bc37b06a5c "nbd/server: introduce NBD_CMD_CACHE"
with the whole feature and affects 3.0.0 release.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
CC: qemu-stable@nongnu.org
Message-Id: <20181003144738.70670-1-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: commit message typo fix]
Signed-off-by: Eric Blake <eblake@redhat.com>
Taking the address of a field in a packed struct is a bad idea, because
it might not be actually aligned enough for that pointer type (and
thus cause a crash on dereference on some host architectures). Newer
versions of clang warn about this. Avoid the bug by not using the
"modify in place" byte swapping functions.
This patch was produced with the following spatch script:
@@
expression E;
@@
-be16_to_cpus(&E);
+E = be16_to_cpu(E);
@@
expression E;
@@
-be32_to_cpus(&E);
+E = be32_to_cpu(E);
@@
expression E;
@@
-be64_to_cpus(&E);
+E = be64_to_cpu(E);
@@
expression E;
@@
-cpu_to_be16s(&E);
+E = cpu_to_be16(E);
@@
expression E;
@@
-cpu_to_be32s(&E);
+E = cpu_to_be32(E);
@@
expression E;
@@
-cpu_to_be64s(&E);
+E = cpu_to_be64(E);
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180927164200.15097-1-peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: rebase, and squash in missed changes]
Signed-off-by: Eric Blake <eblake@redhat.com>
GLib child source were added with version 2.28. We can use them now
that we bumped our requirement to 2.40.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This is mostly for readability of the code. Let's make it clear which
callers can create an implicit monitor when the chardev is muxed.
This will also enforce a safer behaviour, as we don't really support
creating monitor anywhere/anytime at the moment. Add an assert() to
make sure the programmer explicitely wanted that behaviour.
There are documented cases, such as: -serial/-parallel/-virtioconsole
and to less extent -debugcon.
Less obvious and questionable ones are -gdb, SLIRP -guestfwd and Xen
console. Add a FIXME note for those, but keep the support for now.
Other qemu_chr_new() callers either have a fixed parameter/filename
string or do not need it, such as -qtest:
* qtest.c: qtest_init()
Afaik, only used by tests/libqtest.c, without mux. I don't think we
support it outside of qemu testing: drop support for implicit mux
monitor (qemu_chr_new() call: no implicit mux now).
* hw/
All with literal @filename argument that doesn't enable mux monitor.
* tests/
All with @filename argument that doesn't enable mux monitor.
On a related note, the list of monitor creation places:
- the chardev creators listed above: all from command line (except
perhaps Xen console?)
- -gdb & hmp gdbserver will create a "GDB monitor command" chardev
that is wired to an HMP monitor.
- -mon command line option
From this short study, I would like to think that a monitor may only
be created in the main thread today, though I remain skeptical :)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Fix up conformance to GTK-Doc function comment style, as documented in
https://developer.gnome.org/gtk-doc-manual/stable/documenting_symbols.html.en
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
It's possible to write code creating a chardev backend that is not
registered. When it is not user-created, it makes sense to keep it
hidden. Let the associated frontend destroy it also in this case.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
There is no obvious reason to have a loop counter. This limits from
reading several megabytes large buffers in one go, since socket
read/write usually have a limit.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
A socket chardev may not have associated address (when adding client
fd manually for example). But on disconnect, updating socket filename
expects an address and may lead to this crash:
Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
0x0000555555d8c70c in SocketAddress_to_str (prefix=0x555556043062 "disconnected:", addr=0x0, is_listen=false, is_telnet=false) at /home/elmarco/src/qq/chardev/char-socket.c:388
388 switch (addr->type) {
(gdb) bt
#0 0x0000555555d8c70c in SocketAddress_to_str (prefix=0x555556043062 "disconnected:", addr=0x0, is_listen=false, is_telnet=false) at /home/elmarco/src/qq/chardev/char-socket.c:388
#1 0x0000555555d8c8aa in update_disconnected_filename (s=0x555556b1ed00) at /home/elmarco/src/qq/chardev/char-socket.c:419
#2 0x0000555555d8c959 in tcp_chr_disconnect (chr=0x555556b1ed00) at /home/elmarco/src/qq/chardev/char-socket.c:438
#3 0x0000555555d8cba1 in tcp_chr_hup (channel=0x555556b75690, cond=G_IO_HUP, opaque=0x555556b1ed00) at /home/elmarco/src/qq/chardev/char-socket.c:482
#4 0x0000555555da596e in qio_channel_fd_source_dispatch (source=0x555556bb68b0, callback=0x555555d8cb58 <tcp_chr_hup>, user_data=0x555556b1ed00) at /home/elmarco/src/qq/io/channel-watch.c:84
Replace filename with a generic "disconnected:socket" in this case.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Taking the address of a field in a packed struct is a bad idea, because
it might not be actually aligned enough for that pointer type (and
thus cause a crash on dereference on some host architectures). Newer
versions of clang warn about this. Avoid the bug by not using the
"modify in place" byte swapping functions.
This patch was produced with the following simple spatch script:
@@
expression E;
@@
-le16_to_cpus(&E);
+E = le16_to_cpu(E);
@@
expression E;
@@
-le32_to_cpus(&E);
+E = le32_to_cpu(E);
@@
expression E;
@@
-le64_to_cpus(&E);
+E = le64_to_cpu(E);
@@
expression E;
@@
-cpu_to_le16s(&E);
+E = cpu_to_le16(E);
@@
expression E;
@@
-cpu_to_le32s(&E);
+E = cpu_to_le32(E);
@@
expression E;
@@
-cpu_to_le64s(&E);
+E = cpu_to_le64(E);
followed by some minor tidying of overlong lines and bad indent.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180927134852.21490-1-peter.maydell@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This is an alternative fix to Marc-André's original patch.
Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20180927171724.30128-1-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When we added the _with_attrs accessors we forgot to mention
them in the documentation.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180824170422.5783-4-peter.maydell@linaro.org>
Based-on: <20180802174042.29234-1-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We've now removed the 'old_mmio' member from MemoryRegionOps,
so we can perform the copy as a simple struct copy rather
than having to do it via a memberwise copy.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180824170422.5783-3-peter.maydell@linaro.org>
Based-on: <20180802174042.29234-1-peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Now that all the users of old_mmio MemoryRegion accessors
have been converted, we can remove the core code support.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20180824170422.5783-2-peter.maydell@linaro.org>
Based-on: <20180802174042.29234-1-peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Memory regions configured as DEVICE_BIG_ENDIAN (or DEVICE_NATIVE_ENDIAN on
big-endian guest) behave incorrectly when the memory access 'size' is smaller
than the implementation 'access_size'.
In the following code segment from access_with_adjusted_size():
if (memory_region_big_endian(mr)) {
for (i = 0; i < size; i += access_size) {
r |= access_fn(mr, addr + i, value, access_size,
(size - access_size - i) * 8, access_mask, attrs);
}
(size - access_size - i) * 8 is the number of bits that will arithmetic
shift the current value.
Currently we can only 'left' shift a read() access, and 'right' shift a write().
When the access 'size' is smaller than the implementation, we get a negative
number of bits to shift.
For the read() case, a negative 'left' shift is a 'right' shift :)
However since the 'shift' type is unsigned, there is currently no way to
right shift.
Fix this by changing the access_fn() prototype to handle signed shift values,
and modify the memory_region_shift_read|write_access() helpers to correctly
arithmetic shift the opposite direction when the 'shift' value is negative.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180927002416.1781-4-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180927002416.1781-3-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180927002416.1781-2-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The address of a packed member is not packed, which may cause accesses
to unaligned pointers. Avoid this by reading the packed value before
passing it to another function.
Cc: Jason Wang <jasowang@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch makes IDE trim BH deterministic, because it affects
the device state. Therefore its invocation should be replayed
instead of running at the random moment.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20180912081950.3228.68987.stgit@pasha-VirtualBox>
Acked-by: John Snow <jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Before this change, memory-backend-file object is valid for Linux hosts
only because hostmem-file.c is compiled only on Linux hosts.
However, other POSIX-based hosts (such as macOS) can support
memory-backend-file object in the same way as on Linux hosts.
This patch makes hostmem-file.c and related functions to be compiled on
all POSIX-based hosts to make available memory-backend-file on them.
Signed-off-by: Hikaru Nishida <hikarupsp@gmail.com>
Message-Id: <20180924123205.29651-1-hikarupsp@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch fixes the checking of boundary crossing instructions.
In icount mode only first instruction of the block may cross
the page boundary to keep the translation deterministic.
These conditions already existed, but compared the wrong variable.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <20180920071702.22477.43980.stgit@pasha-VirtualBox>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
An interface can't have any instance size or callback, or itself
implement other interfaces (this is unsupported).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180912125303.29158-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The global cpu_single_env variable has been removed more than 5 years
ago, so apparently nobody used this dead debug code in that timeframe
anymore. Thus let's remove it completely now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1537204134-15905-1-git-send-email-thuth@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20180917053229.4853-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This option is added together with scsi-disk but is never honoured,
becuase we don't emulate the VPD page for scsi-block. We could intercept
and inject the user specified value like for max xfer len, but it's
probably not helpful since the intent of 070f80095a was for random
entropy aspects, not for performance. If emulated rotation rate is
desired, scsi-hd is more suitable.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20180917083138.3948-1-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
According to KVM API Documentation, we should only
run vcpu ioctls from the same thread that was used
to create the vcpu. This patch makes KVM_KVMCLOCK_CTRL
ioctl consistent with the Documentation.
No functional change.
Signed-off-by: Yongji Xie <xieyongji@baidu.com>
Signed-off-by: Chai Wen <chaiwen@baidu.com>
Message-Id: <1531315364-2551-1-git-send-email-xieyongji@baidu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Yongji Xie <elohimes@gmail.com>
Add myself as contrib/elf2dmp maintainer and elf2dmp as maintained.
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20180918095422.4468-1-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
elf2dmp is a converter from ELF dump (produced by 'dump-guest-memory') to
Windows MEMORY.DMP format (also know as 'Complete Memory Dump') which can be
opened in WinDbg.
This tool can help if VMCoreInfo device/driver is absent in Windows VM and
'dump-guest-memory -w' is not available but dump can be created in ELF format.
The tool works as follows:
1. Determine the system paging root looking at GS_BASE or KERNEL_GS_BASE
to locate the PRCB structure and finds the kernel CR3 nearby if QEMU CPU
state CR3 is not suitable.
2. Find an address within the kernel image by dereferencing the first
IDT entry and scans virtual memory upwards until the start of the
kernel.
3. Download a PDB matching the kernel from the Microsoft symbol store,
and figure out the layout of certain relevant structures necessary for
the dump.
4. Populate the corresponding structures in the memory image and create
the appropriate dump header.
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com>
Message-Id: <1535546488-30208-3-git-send-email-viktor.prutyanov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch moves definitions of Windows dump structures to
include/qemu/win_dump_defs.h to keep create_win_dump() prototype separate.
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com>
Message-Id: <1535546488-30208-2-git-send-email-viktor.prutyanov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Just as other devices do.
Signed-off-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <1536901871-2729-1-git-send-email-liq3ea@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
While at it, also rename var to indicate it is not used only in KVM.
Reviewed-by: Nikita Leshchenko <nikita.leshchenko@oracle.com>
Reviewed-by: Patrick Colp <patrick.colp@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Message-Id: <20180914003827.124570-2-liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This flag will be used for KVM's nested VMX migration; the HF_GUEST_MASK name
is already used in KVM, adopt it in QEMU as well.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Interrupt handling depends on various flags in env->hflags or env->hflags2,
and the exact detail were not exactly replicated between x86_cpu_has_work
and x86_cpu_exec_interrupt. Create a new function that extracts the
highest-priority non-masked interrupt, and use it in both functions.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
For some reason __APPLE__ was not checked in pty code. However, the #ifdef
is redundant: this file is already compiled only if CONFIG_POSIX, same as
util/qemu-openpty.c which it uses.
Reported-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This test exhibits a regression fixed by the previous reverts.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180817135224.22971-5-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter reported a test failure on FreeBSD with the new reconnect test:
MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}
gtester -k --verbose -m=quick tests/test-char
TEST: tests/test-char... (pid=16190)
/char/null: OK
/char/invalid: OK
/char/ringbuf: OK
/char/mux: OK
/char/stdio: OK
/char/pipe: OK
/char/file: OK
/char/file-fifo: OK
/char/udp: OK
/char/serial: OK
/char/hotswap: OK
/char/socket/basic: OK
/char/socket/reconnect: FAIL
GTester: last random seed: R02S521380d9c12f1dac3ad1763bf5665c27
(pid=16367)
/char/socket/fdpass: OK
FAIL: tests/test-char
**
ERROR:tests/test-char.c:353:char_socket_test_common: assertion failed:
(object_property_get_bool(OBJECT(chr_client), "connected",
&error_abort))
It turns out that the socket test code checks both server and client
connection states, but doesn't wait for both.
Wait for the client side as well.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20180823143125.16767-5-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
So far, tcp_chr_update_read_handler() only updated the read
handler. Let's also update the hup handler.
Factorize the code while at it. (note that s->ioc != NULL when
s->connected)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180817135224.22971-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This reverts commit 25679e5d58.
This commit broke "reconnect socket" chardev that are created after
"machine_done": they no longer try to connect. It broke also
vhost-user-test that uses chardev while there is no "machine_done"
event.
The goal of this patch was to move the "connect" source to the
frontend context. chr->gcontext is set with
qemu_chr_fe_set_handlers(). But there is no guarantee that it will be
called, so we can't delay connection until then: the chardev should
still attempt to connect during open(). qemu_chr_fe_set_handlers() is
eventually called later and will update the context.
Unless there is a good reason to not use initially the default
context, I think we should revert to the previous state to fix the
regressions.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180817135224.22971-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell