Commit Graph

94203 Commits

Author SHA1 Message Date
Miroslav Rezanina
ced5cfffee Use long endian options for ppc64
GCC options pairs -mlittle/-mlittle-endian and -mbig/-mbig-endian are
equivalent on ppc64 architecture. However, Clang supports only long
version of the options.

Use longer form in configure to properly support both GCC and Clang
compiler. In addition, fix this issue in tcg test configure.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20220131091714.4825-1-mrezanin@redhat.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-05 07:16:46 +01:00
Peter Maydell
5c8463886d usb: fixes for ohci, xhci, mtp and redirect
audio: latency fixes
 ui: opengl and cocoa fixes
 firmware: ovmf tabel aprser fixes
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Merge remote-tracking branch 'remotes/kraxel/tags/kraxel-20220304-pull-request' into staging

usb: fixes for ohci, xhci, mtp and redirect
audio: latency fixes
ui: opengl and cocoa fixes
firmware: ovmf tabel aprser fixes

# gpg: Signature made Fri 04 Mar 2022 14:18:47 GMT
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/kraxel-20220304-pull-request: (35 commits)
  hw/display/vmware_vga: replace fprintf calls with trace events
  edid: Fix clock of Detailed Timing Descriptor
  softmmu/qdev-monitor: Add virtio-gpu-gl aliases
  ui/cocoa: Add Services menu
  ui/clipboard: fix use-after-free regression
  ui: do not create a surface when resizing a GL scanout
  ui/console: fix texture leak when calling surface_gl_create_texture()
  ui/console: fix crash when using gl context with non-gl listeners
  docs: Add spec of OVMF GUIDed table for SEV guests
  hw/i386: Replace magic number with field length calculation
  hw/i386: Improve bounds checking in OVMF table parsing
  coreaudio: Notify error in coreaudio_init_out
  hw/usb/redirect.c: Stop using qemu_oom_check()
  sdlaudio: fix samples vs. frames mix-up
  paaudio: fix samples vs. frames mix-up
  ossaudio: reduce effective playback buffer size
  dsoundaudio: reduce effective playback buffer size
  paaudio: reduce effective playback buffer size
  audio: restore mixing-engine playback buffer size
  Revert "audio: fix wavcapture segfault"
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-03-04 22:13:35 +00:00
Richard Henderson
cf32076947 tcg/i386: Implement bitsel for avx512
The general ternary logic operation can implement BITSEL.
Funnel the 4-operand operation into three variants of the
3-operand instruction, depending on input operand overlap.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
3143767b74 tcg/i386: Implement more logical operations for avx512
AVX512VL has a general ternary logic operation, VPTERNLOGQ,
which can implement NOT, ORC, NAND, NOR, EQV.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
4c8b968683 tcg/i386: Implement avx512 multiply
AVX512DQ has VPMULLQ.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
dac1648fd8 tcg/i386: Implement avx512 min/max/abs
AVX512VL has VPABSQ, VPMAXSQ, VPMAXUQ, VPMINSQ, VPMINUQ.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
1d442e427a tcg/i386: Expand scalar rotate with avx512 insns
Expand 32-bit and 64-bit scalar rotate with VPRO[LR]V;
expand 16-bit scalar rotate with VPSHLDV.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
a2a19b429b tcg/i386: Remove rotls_vec from tcg_target_op_def
There is no such instruction on x86, so we should
not be pretending it has arguments.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
786c7ef3b7 tcg/i386: Expand vector word rotate as avx512vbmi2 shift-double
While there are no specific 16-bit rotate instructions, there
are double-word shifts, which can perform the same operation.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
965d5d0681 tcg/i386: Support avx512vbmi2 vector shift-double instructions
We will use VPSHLD, VPSHLDV and VPSHRDV for 16-bit rotates.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
102cd35c01 tcg/i386: Implement avx512 variable rotate
AVX512VL has VPROLVD and VPRORVQ.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
4e73f842e8 tcg/i386: Implement avx512 immediate rotate
AVX512VL has VPROLD and VPROLQ, layered onto the same
opcode as PSHIFTD, but requires EVEX encoding and W1.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
264e418230 tcg/i386: Implement avx512 immediate sari shift
AVX512 has VPSRAQ with immediate operand, in the same form as
with AVX, but requires EVEX encoding and W1.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
47b331b2a8 tcg/i386: Implement avx512 scalar shift
AVX512VL has VPSRAQ.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
ef77ce0d5c tcg/i386: Implement avx512 variable shifts
AVX512VL has VPSRAVQ, and
AVX512BW has VPSLLVW, VPSRAVW, VPSRLVW.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
54e2d650dd tcg/i386: Use tcg_can_emit_vec_op in expand_vec_cmp_noinv
The condition for UMIN/UMAX availability is about to change;
use the canonical version.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
08b032f791 tcg/i386: Add tcg_out_evex_opc
The evex encoding is added here, for use in a subsequent patch.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
ba597b66d9 tcg/i386: Detect AVX512
There are some operation sizes in some subsets of AVX512 that
are missing from previous iterations of AVX.  Detect them.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
21eab5bfae tcg/s390x: Implement vector NAND, NOR, EQV
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
fa8e90d69f tcg/ppc: Implement vector NAND, NOR, EQV
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Richard Henderson
ed5234735a tcg: Add opcodes for vector nand, nor, eqv
We've had placeholders for these opcodes for a while,
and should have support on ppc, s390x and avx512 hosts.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Ziqiao Kong
0166feda32 tcg: Set MAX_OPC_PARAM_IARGS to 7
The last entry of DEF_HELPERS_FLAGS_n is DEF_HELPER_FLAGS_7 and
thus the MAX_OPC_PARAM_IARGS should be 7.

Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Ziqiao Kong <ziqiaokong@gmail.com>
Message-Id: <20220227113127.414533-2-ziqiaokong@gmail.com>
Fixes: e6cadf49c3 ("tcg: Add support for a helper with 7 arguments")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Alex Bennée
9becc36f02 tcg/optimize: only read val after const check
valgrind pointed out that arg_info()->val can be undefined which will
be the case if the arguments are not constant. The ordering of the
checks will have ensured we never relied on an undefined value but for
the sake of completeness re-order the code to be clear.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220209112142.3367525-1-alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-04 08:50:41 -10:00
Hanna Reitz
78fa41fc67 block/amend: Keep strong reference to BDS
Otherwise, the BDS might be freed while the job is running, which would
cause a use-after-free.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220304153729.711387-5-hreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Hanna Reitz
b8ba60067b block/amend: Always call .bdrv_amend_clean()
.bdrv_amend_clean() says block drivers can use it to clean up what was
done in .bdrv_amend_pre_run().  Therefore, it should always be called
after .bdrv_amend_pre_run(), which means we need it to call it in the
JobDriver.free() callback, not in JobDriver.clean().

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220304153729.711387-3-hreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Thomas Huth
9086c76398 tests/qemu-iotests: Rework the checks and spots using GNU sed
Instead of failing the iotests if GNU sed is not available (or skipping
them completely in the check-block.sh script), it would be better to
simply skip the bash-based tests that rely on GNU sed, so that the other
tests could still be run. Thus we now explicitely use "gsed" (either as
direct program or as a wrapper around "sed" if it's the GNU version)
in the spots that rely on the GNU sed behavior. Statements that use the
"-r" parameter of sed have been switched to use "-E" instead, since this
switch is supported by all sed versions on our supported build hosts
(most also support "-r", but macOS' sed only supports "-E"). With all
these changes in place, we then can also remove the sed checks from the
check-block.sh script, so that "make check-block" can now be run on
systems without GNU sed, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220216125454.465041-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Hanna Reitz
971bea8089 iotests/graph-changes-while-io: New test
Test the following scenario:
1. Some block node (null-co) attached to a user (here: NBD server) that
   performs I/O and keeps the node in an I/O thread
2. Repeatedly run blockdev-add/blockdev-del to add/remove an overlay
   to/from that node

Each blockdev-add triggers bdrv_refresh_limits(), and because
blockdev-add runs in the main thread, it does not stop the I/O requests.
I/O can thus happen while the limits are refreshed, and when such a
request sees a temporarily invalid block limit (e.g. alignment is 0),
this may easily crash qemu (or the storage daemon in this case).

The block layer needs to ensure that I/O requests to a node are paused
while that node's BlockLimits are refreshed.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20220216105355.30729-4-hreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Hanna Reitz
ec88eed8d1 iotests: Allow using QMP with the QSD
Add a parameter to optionally open a QMP connection when creating a
QemuStorageDaemon instance.

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220216105355.30729-3-hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Hanna Reitz
4d378bbd83 block: Make bdrv_refresh_limits() non-recursive
bdrv_refresh_limits() recurses down to the node's children.  That does
not seem necessary: When we refresh limits on some node, and then
recurse down and were to change one of its children's BlockLimits, then
that would mean we noticed the changed limits by pure chance.  The fact
that we refresh the parent's limits has nothing to do with it, so the
reason for the change probably happened before this point in time, and
we should have refreshed the limits then.

Consequently, we should actually propagate block limits changes upwards,
not downwards.  That is a separate and pre-existing issue, though, and
so will not be addressed in this patch.

The problem with recursing is that bdrv_refresh_limits() is not atomic.
It begins with zeroing BDS.bl, and only then sets proper, valid limits.
If we do not drain all nodes whose limits are refreshed, then concurrent
I/O requests can encounter invalid request_alignment values and crash
qemu.  Therefore, a recursing bdrv_refresh_limits() requires the whole
subtree to be drained, which is currently not ensured by most callers.

A non-recursive bdrv_refresh_limits() only requires the node in question
to not receive I/O requests, and this is done by most callers in some
way or another:
- bdrv_open_driver() deals with a new node with no parents yet
- bdrv_set_file_or_backing_noperm() acts on a drained node
- bdrv_reopen_commit() acts only on drained nodes
- bdrv_append() should in theory require the node to be drained; in
  practice most callers just lock the AioContext, which should at least
  be enough to prevent concurrent I/O requests from accessing invalid
  limits

So we can resolve the bug by making bdrv_refresh_limits() non-recursive.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1879437
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20220216105355.30729-2-hreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Emanuele Giuseppe Esposito
c70b8031c6 job.h: assertions in the callers of JobDriver function pointers
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-32-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Emanuele Giuseppe Esposito
32498092c4 job.h: split function pointers in JobDriver
The job API will be handled separately in another serie.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-31-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Emanuele Giuseppe Esposito
dc2b15ba08 block-backend-common.h: split function pointers in BlockDevOps
Assertions in the callers of the function pointrs are already
added by previous patches.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20220303151616.325444-30-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:26 +01:00
Emanuele Giuseppe Esposito
f0c2832703 block_int-common.h: assertions in the callers of BdrvChildClass function pointers
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-29-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
abc5a79c64 block_int-common.h: split function pointers in BdrvChildClass
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-28-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
da359909bd block_int-common.h: assertions in the callers of BlockDriver function pointers
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-27-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
69c0bf1197 block_int-common.h: split function pointers in BlockDriver
Similar to the header split, also the function pointers in BlockDriver
can be split in I/O and global state.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-26-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
1581a70ddd block/coroutines: I/O and "I/O or GS" API
block coroutines functions run in different aiocontext, and are
not protected by the BQL. Therefore are I/O.

On the other side, generated_co_wrapper functions use BDRV_POLL_WHILE,
meaning the caller can either be the main loop or a specific iothread.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-25-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
377cc15bf1 block/copy-before-write.h: global state API + assertions
copy-before-write functions always run under BQL.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-24-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
6b573efec8 include/block/snapshot: global state API + assertions
Snapshots run also under the BQL, so they all are
in the global state API. The aiocontext lock that they hold
is currently an overkill and in future could be removed.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-23-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
c5be7445b7 assertions for blockdev.h global state API
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-22-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
7569583124 include/sysemu/blockdev.h: global state API
blockdev functions run always under the BQL lock.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-21-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
cf81ae28a1 assertions for blockjob.h global state API
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-20-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
4ad3387637 include/block/blockjob.h: global state API
blockjob functions run always under the BQL lock.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-19-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
bdb734763b block.c: add assertions to static functions
Following the assertion derived from the API split,
propagate the assertion also in the static functions.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-18-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
e2d9faf534 GS and IO CODE macros for blockjob_int.h
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-17-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
2015c4c28d include/block/blockjob_int.h: split header into I/O and GS API
Since the I/O functions are not many, keep a single file.
Also split the function pointers in BlockJobDriver.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220303151616.325444-16-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
696bf4c78c block: introduce assert_bdrv_graph_writable
We want to be sure that the functions that write the child and
parent list of a bs are under BQL and drain.

BQL prevents from concurrent writings from the GS API, while
drains protect from I/O.

TODO: drains are missing in some functions using this assert.
Therefore a proper assertion will fail. Because adding drains
requires additional discussions, they will be added in future
series.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-15-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
967d7905d1 IO_CODE and IO_OR_GS_CODE for block_int I/O API
Mark all I/O functions with IO_CODE, and all "I/O OR GS" with
IO_OR_GS_CODE.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-14-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
b4ad82aab1 assertions for block_int global state API
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-13-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00
Emanuele Giuseppe Esposito
ebc2752b08 include/block/block_int: split header into I/O and global state API
Similarly to the previous patch, split block_int.h
in block_int-io.h and block_int-global-state.h

block_int-common.h contains the structures shared between
the two headers, and the functions that can't be categorized as
I/O or global state.

Assertions are added in the next patch.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-12-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-03-04 18:18:25 +01:00