liburing does not clear sqe->user_data. We must do it ourselves to avoid
undefined behavior in process_cqe() when user_data is used.
Note that fdmon-io_uring is currently disabled, so this is a latent bug
that does not affect users. Let's merge this fix now to make it easier
to enable fdmon-io_uring in the future (and I'm working on that).
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230426212639.82310-1-stefanha@redhat.com>
Add testcase which checks that allocations during copy-on-read are
performed on the subcluster basis when subclusters are enabled in target
image.
This testcase also triggers the following assert with previous commit
not being applied, so we check that as well:
qemu-io: ../block/io.c:1236: bdrv_co_do_copy_on_readv: Assertion `skip_bytes < pnum' failed.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230711172553.234055-4-andrey.drobyshev@virtuozzo.com>
When target image is using subclusters, and we align the request during
copy-on-read, it makes sense to align to subcluster_size rather than
cluster_size. Otherwise we end up with unnecessary allocations.
This commit renames bdrv_round_to_clusters() to bdrv_round_to_subclusters()
and utilizes subcluster_size field of BlockDriverInfo to make necessary
alignments. It affects copy-on-read as well as mirror job (which is
using bdrv_round_to_clusters()).
This change also fixes the following bug with failing assert (covered by
the test in the subsequent commit):
qemu-img create -f qcow2 base.qcow2 64K
qemu-img create -f qcow2 -o extended_l2=on,backing_file=base.qcow2,backing_fmt=qcow2 img.qcow2 64K
qemu-io -c "write -P 0xaa 0 2K" img.qcow2
qemu-io -C -c "read -P 0x00 2K 62K" img.qcow2
qemu-io: ../block/io.c:1236: bdrv_co_do_copy_on_readv: Assertion `skip_bytes < pnum' failed.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230711172553.234055-3-andrey.drobyshev@virtuozzo.com>
This is going to be used in the subsequent commit as requests alignment
(in particular, during copy-on-read). This value only makes sense for
the formats which support subclusters (currently QCOW2 only). If this
field isn't set by driver's own bdrv_get_info() implementation, we
simply set it equal to the cluster size thus treating each cluster as
having a single subcluster.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230711172553.234055-2-andrey.drobyshev@virtuozzo.com>
We can fail the blk_insert_bs() at init_blk_migration(), leaving the
BlkMigDevState without a dirty_bitmap and BlockDriverState. Account
for the possibly missing elements when doing cleanup.
Fix the following crashes:
Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
0x0000555555ec83ef in bdrv_release_dirty_bitmap (bitmap=0x0) at ../block/dirty-bitmap.c:359
359 BlockDriverState *bs = bitmap->bs;
#0 0x0000555555ec83ef in bdrv_release_dirty_bitmap (bitmap=0x0) at ../block/dirty-bitmap.c:359
#1 0x0000555555bba331 in unset_dirty_tracking () at ../migration/block.c:371
#2 0x0000555555bbad98 in block_migration_cleanup_bmds () at ../migration/block.c:681
Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
0x0000555555e971ff in bdrv_op_unblock (bs=0x0, op=BLOCK_OP_TYPE_BACKUP_SOURCE, reason=0x0) at ../block.c:7073
7073 QLIST_FOREACH_SAFE(blocker, &bs->op_blockers[op], list, next) {
#0 0x0000555555e971ff in bdrv_op_unblock (bs=0x0, op=BLOCK_OP_TYPE_BACKUP_SOURCE, reason=0x0) at ../block.c:7073
#1 0x0000555555e9734a in bdrv_op_unblock_all (bs=0x0, reason=0x0) at ../block.c:7095
#2 0x0000555555bbae13 in block_migration_cleanup_bmds () at ../migration/block.c:690
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Message-id: 20230731203338.27581-1-farosas@suse.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This reverts commit fc15bfb6a6.
This patch caused a regression for tricore-softmmu,
./tests/tcg/tricore-softmmu/test_boot_to_main.c.tst.
Reported-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Since a59a293126 ("tcg/sparc64: Remove sparc32plus constraints")
we no longer distinguish registers with 32 vs 64 bits.
Therefore we can remove support for the backend-specific
type change opcodes.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The not pattern is always available via generic expansion.
See debug block in tcg_can_emit_vecop_list.
Fixes: 11978f6f58 ("tcg: Fix expansion of INDEX_op_not_vec")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
After system startup, run the update to memory_dispatch
and the tlb_flush on the cpu. This eliminates a race,
wherein a running cpu sees the memory_dispatch change
but has not yet seen the tlb_flush.
Since the update now happens on the cpu, we need not use
qatomic_rcu_read to protect the read of memory_dispatch.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1826
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1834
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1846
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>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
First batch of commits submitted by my GSoC student Karim Taha
These implement the stat, statfs, statfh and dirents system calls.
In addition, fix a missing break statment, and submit Richard Henderson's
elf stat mmap cleansup.
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Merge tag '2023q3-bsd-user-pull-request' of https://gitlab.com/bsdimp/qemu into staging
Pull request for bsd-user 2023 Q3 (first batch)
First batch of commits submitted by my GSoC student Karim Taha
These implement the stat, statfs, statfh and dirents system calls.
In addition, fix a missing break statment, and submit Richard Henderson's
elf stat mmap cleansup.
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# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100
* tag '2023q3-bsd-user-pull-request' of https://gitlab.com/bsdimp/qemu: (36 commits)
bsd-user: Add missing break after do_bsd_preadv
bsd-user: Add getdents and fcntl related system calls
bsd-user: Add glue for statfs related system calls
bsd-user: Add glue for getfh and related syscalls
bsd-user: Add glue for the freebsd11_stat syscalls
bsd-user: Add os-stat.c to the build
bsd-user: Implement do_freebsd_realpathat syscall
bsd-user: Implement freebsd11 netbsd stat related syscalls
bsd-user: Implement freebsd11 getdirents related syscalls
bsd-user: Implement freebsd11 statfs related syscalls
bsd-user: Implement freebsd11 fstat and fhstat related syscalls
bsd-user: Implement freebsd11 stat related syscalls
bsd-user: Implement stat related syscalls
bsd-user: Implement getdents related syscalls
bsd-user: Implement statfs related syscalls
bsd-user: Implement statfh related syscalls
bsd-user: Implement stat related syscalls
bsd-uesr: Implement h2t_freebsd_stat and h2t_freebsd_statfs functions
bsd-user: Implement target_to_host_fcntl_cmd
bsd-user: Implement h2t_freebds11_statfs
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Make the conversion between privilege level and QEMU MMU index
consistent, and afterwards switch to MMU indices 11-15.
Signed-off-by: Helge Deller <deller@gmx.de>
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Merge tag 'devel-hppa-priv-cleanup2-pull-request' of https://github.com/hdeller/qemu-hppa into staging
target/hppa: Clean up conversion from/to MMU index and privilege level
Make the conversion between privilege level and QEMU MMU index
consistent, and afterwards switch to MMU indices 11-15.
Signed-off-by: Helge Deller <deller@gmx.de>
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# gpg: Signature made Sun 27 Aug 2023 11:17:40 EDT
# gpg: using EDDSA key BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg: aka "Helge Deller <deller@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 4544 8228 2CD9 10DB EF3D 25F8 3E5F 3D04 A7A2 4603
# Subkey fingerprint: BCE9 123E 1AD2 9F07 C049 BBDE F712 B510 A23A 0F5F
* tag 'devel-hppa-priv-cleanup2-pull-request' of https://github.com/hdeller/qemu-hppa:
target/hppa: Switch to use MMU indices 11-15
target/hppa: Use privilege helper in hppa_get_physical_address()
target/hppa: Do not use hardcoded value for tlb_flush_*()
target/hppa: Add privilege to MMU index conversion helpers
target/hppa: Add missing PL1 and PL2 privilege levels
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Without it, we'd call preadv, then write with weird parameters, which is
clearly not ideal...
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Fixes: 770d8abae7 ("bsd-user/bsd-file.h: Meat of the write system calls")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230820045419.89691-1-imp@bsdimp.com>
Add glue to call the following syscalls to the freebsd_syscall:
freebsd11_getdents
getdirentries
freebsd11_getdirentries
fcntl
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Add glue to call the following syscalls to the freebsd_syscall:
freebsd11_statfs
statfs
freebsd11_fstatfs
fstatfs
freebsd11_getfsstat
getfsstat
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Add glue to call the following syscalls to the freebsd_syscall:
getfh
lgetfh
fhopen
freebsd11_fhstat
freebsd11_fhstatfs
fhstat
fhstatfs
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Add glue to call the freebsd11_stat syscalls to the freebsd_syscall:
freebsd11_stat
freebsd11_lstat
freebsd11_fstat
freebsd11_fstatat
freebsd11_nstat, freebsd11_nfstat, freebsd11_nlstat
fstatat
fstat
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Forward declaration of the nstat syscalls:
nstat
nlstat
nfstat
Co-authored-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the freebsd11 variant of the following syscalls:
getdirentries(2)
Co-authored-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the freebsd11 variant of the following syscalls:
statfs(2)
fstatfs(2)
getfsstat(2)
Co-authored-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the freebsd11 variant of the following syscalls:
fstat(2)
fstatat(2)
fhstat(2)
fhstatfs(2)
Co-authored-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Rename the following syscalls to the freebsd11 variant:
do_freebsd_lstat -> do_freebsd11_lstat
do_freebsd_stat -> do_freebsd11_stat
Co-authored-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the following syscalls:
fcntl(2)
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the following syscalls:
getdents(2)
getdirecentries(2)
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the following syscalls:
statfs(2)
fstatfs(2)
getfsstat(2)
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the following syscalls:
getfh(2)
lgetfh(2)
fhopen(2)
fhstat(2)
fhstatfs(2)
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the following syscalls:
stat(2)
lstat(2)
fstat(2)
fstatat(2)
nstat
nfstat
nlstat
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
They are the 64-bit variants of h2t_freebsd11_stat and
h2t_freebsd11_statfs, respectively
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the stat conversion functions:
target_to_host_fcntl_cmd
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the stat conversion functions:
h2t_freebds11_statfs
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the stat conversion functions:
h2t_freebsd_fhandle
t2h_freebsd_fhandle
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Implement the stat conversion functions:
h2t_freebsd11_stat
h2t_freebsd_nstat
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
This is necessary for future code using target_time_t, in
bsd-user/syscall_defs.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Add struct target_freebsd_fhandle and fcntl flags to
bsd-user/syscall_defs.h
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Add struct target_statfs to bsd-user/syscall_defs.h
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Add structs target_freebsd11_nstat and target_freebsd11_statfs to
bsd-user/syscall_defs.h
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Singed-off-by: Warner Losh <imp@bsdimp.com>
Declarations of functions that convert between host and target structs.
Co-authored-by: Michal Meloun <mmel@FreeBSD.org>
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Use __builtin_choose_expr to avoid type promotion from ?:
in __put_user_e and __get_user_e macros.
Copied from linux-user/qemu.h, originally by Blue Swirl.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Implement PRAGMA_DISABLE_PACKED_WARNING and
PRAGMA_REENABLE_PACKED_WARNING macros in include/qemu/compiler.h.
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
move _WANT_FREEBSD macros from bsd-user/freebsd/os-syscall.c to
include/qemu/osdep.h in order to pull some struct defintions needed
later in the build.
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
