The value of the mp-affinity property being set in npcm7xx_realize is
always the same as the default value it would have when arm_cpu_realizefn
is called if the property is not set here. So there is no need to set
the property value in npcm7xx_realize function.
Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240504141733.14813-1-dorjoychy111@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We wrongly encoded ID_AA64PFR1_EL1 using {3,0,0,4,2} in hvf_sreg_match[] so
we fail to get the expected ARMCPRegInfo from cp_regs hash table with the
wrong key.
Fix it with the correct encoding {3,0,0,4,1}. With that fixed, the Linux
guest can properly detect FEAT_SSBS2 on my M1 HW.
All DBG{B,W}{V,C}R_EL1 registers are also wrongly encoded with op0 == 14.
It happens to work because HVF_SYSREG(CRn, CRm, 14, op1, op2) equals to
HVF_SYSREG(CRn, CRm, 2, op1, op2), by definition. But we shouldn't rely on
it.
Cc: qemu-stable@nongnu.org
Fixes: a1477da3dd ("hvf: Add Apple Silicon support")
Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Reviewed-by: Alexander Graf <agraf@csgraf.de>
Message-id: 20240503153453.54389-1-zenghui.yu@linux.dev
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add xlnx_dpdma_read_descriptor() and
xlnx_dpdma_write_descriptor() functions.
xlnx_dpdma_read_descriptor() combines reading a
descriptor from desc_addr by calling dma_memory_read()
and swapping the desc fields from guest memory order
to host memory order. xlnx_dpdma_write_descriptor()
performs similar actions when writing a descriptor.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: d3c6369a96 ("introduce xlnx-dpdma")
Signed-off-by: Alexandra Diupina <adiupina@astralinux.ru>
[PMM: tweaked indent, dropped behaviour change for write-failure case]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We want to have similar QMP objects in different tests. Reworking these
objects to make common parts by calling some helper functions doesn't
seem good. It's a lot more comfortable to see the whole QAPI request in
one place.
So, let's increase the limit, to unblock further commit
"iotests: add backup-discard-source"
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Add test for a new backup option: discard-source.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Message-Id: <20240313152822.626493-6-vsementsov@yandex-team.ru>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Add a parameter that enables discard-after-copy. That is mostly useful
in "push backup with fleecing" scheme, when source is snapshot-access
format driver node, based on copy-before-write filter snapshot-access
API:
[guest] [snapshot-access] ~~ blockdev-backup ~~> [backup target]
| |
| root | file
v v
[copy-before-write]
| |
| file | target
v v
[active disk] [temp.img]
In this case discard-after-copy does two things:
- discard data in temp.img to save disk space
- avoid further copy-before-write operation in discarded area
Note that we have to declare WRITE permission on source in
copy-before-write filter, for discard to work. Still we can't take it
unconditionally, as it will break normal backup from RO source. So, we
have to add a parameter and pass it thorough bdrv_open flags.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20240313152822.626493-5-vsementsov@yandex-team.ru>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Currently block_copy creates copy_bitmap in source node. But that is in
bad relation with .independent_close=true of copy-before-write filter:
source node may be detached and removed before .bdrv_close() handler
called, which should call block_copy_state_free(), which in turn should
remove copy_bitmap.
That's all not ideal: it would be better if internal bitmap of
block-copy object is not attached to any node. But that is not possible
now.
The simplest solution is just create copy_bitmap in filter node, where
anyway two other bitmaps are created.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Message-Id: <20240313152822.626493-4-vsementsov@yandex-team.ru>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
First thing that crashes on unligned access here is
bdrv_reset_dirty_bitmap(). Correct way is to align-down the
snapshot-discard request.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Message-Id: <20240313152822.626493-3-vsementsov@yandex-team.ru>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
In case when source node does not have any parents, the condition still
works as required: backup job do create the parent by
block_job_create -> block_job_add_bdrv -> bdrv_root_attach_child
Still, in this case checking @perm variable doesn't work, as backup job
creates the root blk with empty permissions (as it rely on CBW filter
to require correct permissions and don't want to create extra
conflicts).
So, we should not check @perm.
The hack may be dropped entirely when transactional insertion of
filter (when we don't try to recalculate permissions in intermediate
state, when filter does conflict with original parent of the source
node) merged (old big series
"[PATCH v5 00/45] Transactional block-graph modifying API"[1] and it's
current in-flight part is "[PATCH v8 0/7] blockdev-replace"[2])
[1] https://patchew.org/QEMU/20220330212902.590099-1-vsementsov@openvz.org/
[2] https://patchew.org/QEMU/20231017184444.932733-1-vsementsov@yandex-team.ru/
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Tested-by: Fiona Ebner <f.ebner@proxmox.com>
Message-Id: <20240313152822.626493-2-vsementsov@yandex-team.ru>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
If a blockcommit is aborted the base image remains in RW mode, that leads
to a fail of subsequent live migration.
How to reproduce:
$ virsh snapshot-create-as vm snp1 --disk-only
*** write something to the disk inside the guest ***
$ virsh blockcommit vm vda --active --shallow && virsh blockjob vm vda --abort
$ lsof /vzt/vm.qcow2
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
qemu-syst 433203 root 45u REG 253,0 1724776448 133 /vzt/vm.qcow2
$ cat /proc/433203/fdinfo/45
pos: 0
flags: 02140002 <==== The last 2 means RW mode
If the base image is in RW mode at the end of blockcommit and was in RO
mode before blockcommit, reopen the base BDS in RO.
Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20240404091136.129811-1-alexander.ivanov@virtuozzo.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240514105829.729342-4-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Some, but not all error messages are of the form
Guest agent command failed, error was '<actual error message>'
For instance, command guest-exec can fail with an error message like
Guest agent command failed, error was 'Failed to execute child process “/bin/invalid-cmd42” (No such file or directory)'
Shorten this to just just the actual error message. The guest-exec
example becomes
Failed to execute child process “/bin/invalid-cmd42” (No such file or directory)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240514105829.729342-3-armbru@redhat.com>
[Superfluous #include "qapi/qmp/qerror.h" deleted]
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
When guest-set-user-password's argument @password can't be converted
from UTF-8 to UTF-16, we report something like
Guest agent command failed, error was 'Invalid sequence in conversion input'
Improve this to
can't convert 'password' to UTF-16: Invalid sequence in conversion input
Likewise for argument @username, and guest-file-open argument @path,
even though I'm not sure you can actually get invalid input past the
QMP core there.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240514105829.729342-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240513141703.549874-7-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Functions that use an Error **errp parameter to return errors should
not also report them to the user, because reporting is the caller's
job. When the caller does, the error is reported twice. When it
doesn't (because it recovered from the error), there is no error to
report, i.e. the report is bogus.
qmp_xen_save_devices_state() and qmp_xen_load_devices_state() violate
this principle: they call qemu_save_device_state() and
qemu_loadvm_state(), which call error_report_err().
I wish I could clean this up now, but migration's error reporting is
too complicated (confused?) for me to mess with it.
Instead, I'm merely improving the error reported by
qmp_xen_load_devices_state() and qmp_xen_load_devices_state() to the
QMP core from
An IO error has occurred
to
saving Xen device state failed
and
loading Xen device state failed
respectively.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240513141703.549874-6-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Fabiano Rosas <farosas@suse.de>
Acked-by: Peter Xu <peterx@redhat.com>
qmp_memsave() and qmp_pmemsave() report fwrite() error as
An IO error has occurred
Improve this to
writing memory to '<filename>' failed
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240513141703.549874-5-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
vmdk_init_extent() reports blk_co_pwrite() failure to its caller as
An IO error has occurred
The errno code returned by blk_co_pwrite() is lost.
Improve this to
failed to write VMDK <what>: <description of errno>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240513141703.549874-4-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
create_win_dump() and write_run report qemu_write_full() failure to
their callers as
An IO error has occurred
The errno set by qemu_write_full() is lost.
Improve this to
win-dump: failed to write header: <description of errno>
and
win-dump: failed to save memory: <description of errno>
This matches how dump.c reports similar errors.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240513141703.549874-3-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
external_snapshot_action() reports bdrv_flush() failure to its caller
as
An IO error has occurred
The errno code returned by bdrv_flush() is lost.
Improve this to
Write to node '<device or node name>' failed: <description of errno>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240513141703.549874-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
linux-user/i386: Fix allocation and alignment of fp state in signal frame
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Merge tag 'pull-lu-20240526' of https://gitlab.com/rth7680/qemu into staging
target/i386: Introduce X86Access and use for xsave and friends
linux-user/i386: Fix allocation and alignment of fp state in signal frame
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# gpg: Signature made Sun 26 May 2024 05:48:44 PM PDT
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]
* tag 'pull-lu-20240526' of https://gitlab.com/rth7680/qemu: (28 commits)
target/i386: Pass host pointer and size to cpu_x86_{xsave,xrstor}
target/i386: Pass host pointer and size to cpu_x86_{fxsave,fxrstor}
target/i386: Pass host pointer and size to cpu_x86_{fsave,frstor}
target/i386: Convert do_xrstor to X86Access
target/i386: Convert do_xsave to X86Access
linux-user/i386: Honor xfeatures in xrstor_sigcontext
linux-user/i386: Fix allocation and alignment of fp state
linux-user/i386: Return boolean success from xrstor_sigcontext
linux-user/i386: Return boolean success from restore_sigcontext
linux-user/i386: Fix -mregparm=3 for signal delivery
linux-user/i386: Split out struct target_fregs_state
linux-user/i386: Replace target_fpstate_fxsave with X86LegacyXSaveArea
linux-user/i386: Remove xfeatures from target_fpstate_fxsave
linux-user/i386: Drop xfeatures_size from sigcontext arithmetic
target/i386: Add {hw,sw}_reserved to X86LegacyXSaveArea
target/i386: Add rbfm argument to cpu_x86_{xsave,xrstor}
target/i386: Split out do_xsave_chk
target/i386: Convert do_xrstor_* to X86Access
target/i386: Convert do_xsave_* to X86Access
tagret/i386: Convert do_fxsave, do_fxrstor to X86Access
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have already validated the memory region in the course of
validating the signal frame. No need to do it again within
the helper function.
In addition, return failure when the header contains invalid
xstate_bv. The kernel handles this via exception handling
within XSTATE_OP within xrstor_from_user_sigframe.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have already validated the memory region in the course of
validating the signal frame. No need to do it again within
the helper function.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have already validated the memory region in the course of
validating the signal frame. No need to do it again within
the helper function.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For modern cpus, the kernel uses xsave to store all extra
cpu state across the signal handler. For xsave/xrstor to
work, the pointer must be 64 byte aligned. Moreover, the
regular part of the signal frame must be 16 byte aligned.
Attempt to mirror the kernel code as much as possible.
Use enum FPStateKind instead of use_xsave() and use_fxsr().
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1648
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Invert the sense of the return value and use bool.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Invert the sense of the return value and use bool.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use the structure definition from target/i386/cpu.h.
The only minor quirk is re-casting the sw_reserved
area to the OS specific struct target_fpx_sw_bytes.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is easily computed by advancing past the structure.
At the same time, replace the magic number "64".
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is subtracting sizeof(target_fpstate_fxsave) in
TARGET_FXSAVE_SIZE, then adding it again via &fxsave->xfeatures.
Perform the same computation using xstate_size alone.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This completes the 512 byte structure, allowing the union to
be removed. Assert that the structure layout is as expected.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For now, continue to pass all 1's from signal.c.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This path is not required by user-only, and can in fact
be shared between xsave and xrstor.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The body of do_xrstor is now fully converted.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The body of do_xsave is now fully converted.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Move the alignment fault from do_* to helper_*, as it need
not apply to usage from within user-only signal handling.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Provide a method to amortize page lookup across large blocks.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
Build system and target/i386/translate.c cleanups
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# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (24 commits)
migration: remove unnecessary zlib dependency
meson: do not query modules before they are processed
tcg: include dependencies in static_library()
meson: remove unnecessary dependency
meson: remove unnecessary reference to libm
target/i386: remove aflag argument of gen_lea_v_seg
target/i386: clean up repeated string operations
target/i386: introduce gen_lea_ss_ofs
target/i386: use mo_stacksize more
target/i386: inline gen_add_A0_ds_seg
target/i386: split gen_ldst_modrm for load and store
target/i386: reg in gen_ldst_modrm is always OR_TMP0
target/i386: raze the gen_eob* jungle
target/i386: assert that gen_update_eip_cur and gen_update_eip_next are the same in tb_stop
target/i386: avoid calling gen_eob_inhibit_irq before tb_stop
target/i386: avoid calling gen_eob_syscall before tb_stop
target/i386: document and group DISAS_* constants
target/i386: set CC_OP in helpers if they want CC_OP_EFLAGS
target/i386: cpu_load_eflags already sets cc_op
target/i386: remove unnecessary gen_update_cc_op before gen_eob*
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
