For virtio-mem, we want to have the plugged/unplugged state of memory
blocks available before migrating any actual RAM content, and perform
sanity checks before touching anything on the destination. This
information is immutable on the migration source while migration is active,
We want to use this information for proper preallocation support with
migration: currently, we don't preallocate memory on the migration target,
and especially with hugetlb, we can easily run out of hugetlb pages during
RAM migration and will crash (SIGBUS) instead of catching this gracefully
via preallocation.
Migrating device state via a VMSD before we start iterating is currently
impossible: the only approach that would be possible is avoiding a VMSD
and migrating state manually during save_setup(), to be restored during
load_state().
Let's allow for migrating device state via a VMSD early, during the
setup phase in qemu_savevm_state_setup(). To keep it simple, we
indicate applicable VMSD's using an "early_setup" flag.
Note that only very selected devices (i.e., ones seriously messing with
RAM setup) are supposed to make use of such early state migration.
While at it, also use a bool for the "unmigratable" member.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>S
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
... and store it in the migration state. This is a preparation for
storing selected vmds's already in qemu_savevm_state_setup().
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Let's move more code into vmstate_save(), reducing code duplication and
preparing for reuse of vmstate_save() in qemu_savevm_state_setup(). We
have to move vmstate_save() to make the compiler happy.
We'll now also trace from qemu_save_device_state(), triggering the same
tracepoints as previously called from
qemu_savevm_state_complete_precopy_non_iterable() only. Note that
qemu_save_device_state() ignores iterable device state, such as RAM,
and consequently doesn't trigger some other trace points (e.g.,
trace_savevm_state_setup()).
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
ram_block_populate_read() already optimizes for RamDiscardManager.
However, ram_write_tracking_start() will still try protecting discarded
memory ranges.
Let's optimize, because discarded ranges don't map any pages and
(1) For anonymous memory, trying to protect using uffd-wp without a mapped
page is ignored by the kernel and consequently a NOP.
(2) For shared/file-backed memory, we will fill present page tables in the
range with PTE markers. However, we will even allocate page tables
just to fill them with unnecessary PTE markers and effectively
waste memory.
So let's exclude these ranges, just like ram_block_populate_read()
already does.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
ram_mig_ram_block_resized() will abort migration (including background
snapshots) when resizing a RAMBlock. ram_block_populate_read() will only
populate RAM up to used_length, so at least for anonymous memory
protecting everything between used_length and max_length won't
actually be protected and is just a NOP.
So let's only protect everything up to used_length.
Note: it still makes sense to register uffd-wp for max_length, such
that RAM_UF_WRITEPROTECT is independent of a changing used_length.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
When unregistering uffd-wp, older kernels before commit f369b07c86143
("mm/uffd:reset write protection when unregister with wp-mode") won't
clear the uffd-wp PTE bit. When re-registering uffd-wp, the previous
uffd-wp PTE bits would trigger again. With above commit, the kernel will
clear the uffd-wp PTE bits when unregistering itself.
Consequently, we'll clear the uffd-wp PTE bits now twice -- whereby we
don't care about clearing them at all: a new background snapshot will
re-register uffd-wp and re-protect all memory either way.
So let's skip the manual clearing of uffd-wp. If ever relevant, we
could clear conditionally in uffd_unregister_memory() -- we just need a
way to figure out more recent kernels.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
If something goes wrong during uffd_change_protection(), we would miss
to unregister uffd-wp and not release our reference. Fix it by
performing the uffd_change_protection(true) last.
Note that a uffd_change_protection(false) on the recovery path without a
prior uffd_change_protection(false) is fine.
Fixes: 278e2f551a ("migration: support UFFD write fault processing in ram_save_iterate()")
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Unfortunately, commit f7b9dcfbcf broke populate_read_range(): the loop
end condition is very wrong, resulting in that function not populating the
full range. Lets' fix that.
Fixes: f7b9dcfbcf ("migration/ram: Factor out populating pages readable in ram_block_populate_pages()")
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Add a helper to create the uffd handle.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Until previous commit, save_live_pending() was used for ram. Now with
the split into state_pending_estimate() and state_pending_exact() it
is not needed anymore, so remove them.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
We split the function into to:
- state_pending_estimate: We estimate the remaining state size without
stopping the machine.
- state pending_exact: We calculate the exact amount of remaining
state.
The only "device" that implements different functions for _estimate()
and _exact() is ram.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Commit d9e474ea56 overlooked the case where the target psize is even larger
than the host psize. One example is Alpha has 8K page size and migration
will start to crash the source QEMU when running Alpha migration on x86.
Fix it by detecting that case and set host start/end just to cover the
single page to be migrated.
This will slightly optimize the common case where host psize equals to
guest psize so we don't even need to do the roundups, but that's trivial.
Cc: qemu-stable@nongnu.org
Reported-by: Thomas Huth <thuth@redhat.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1456
Fixes: d9e474ea56 ("migration: Teach PSS about host page")
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
scripts/ci/org.centos/stream/8/build-environment.yml has a slightly different
list of packages compared to scripts/ci/setup/build-environment.yaml. Make
them the same.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Update the CI playbook so that it is able to prepare a system with a
fresh CentOS Stream 8 install, rather than just support RHEL.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add a way to set a backing store for the mac_nvram. Use -drive
file=nvram.img,format=raw,if=mtd to specify backing file where
nvram.img must be MACIO_NVRAM_SIZE which is 8192 bytes.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <1aadee8f0ca0f56cf1b7c45c3944676a07d91de9.1675297286.git.balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Add a way to set a backing store for the mac_nvram similar to what
spapr_nvram or mac_via PRAM already does to allow to save its contents
between runs.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <4b1605a9e484cc95f6e141f297487a070fd418ac.1675297286.git.balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Use the convention to return bool from functions which take an error
pointer which allows for callers to pass through their error pointer
without needing a local.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <bfce0751e82b031f5e6fb3c32cfbce6325434400.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Drop some local variables that could just be substituted at the single
place they were used. This makes the code shorter and simpler.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <165a4ea190af7c09832f50f02004fad82f704898.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Some functions use sysbus_dev while others sbd name for local variable
storing a sysbus device pointer. Standardise on the shorter name to be
consistent and make the code easier to read as short name is less
distracting and needs less line breaks.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <6c79d6903fc11e153f8050a374904c2b5d5db585.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
At several places we already have the object pointer with the right
type so we don't need to cast it back and forth. Avoiding these casts
improves readability.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <67b2d4700879c3b4cd574f1faa1a0d1950b3d0ee.1674001242.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
We already have machine in a local variable so no need to use
qdev_get_machine(), also remove now unneeded line break.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <719299533b89aa4516966065eae05c75744f50d3.1672868854.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
The header hw/input/adb.h is included by some files that don't need
it. Clean it up and include only where necessary.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <f46bc751e8426f9d937c9540f2e67d2f0b2cc582.1672868854.git.balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This queue includes patches that aren't PPC specific but benefit/impact
PPC machines, such as the changes to guestperf.py, mv64361 and sm501. As
for PPC specific changes we have e500 and PNV_PHB5 fixes.
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Merge tag 'pull-ppc-20230205' of https://gitlab.com/danielhb/qemu into staging
ppc patch queue for 2023-02-05:
This queue includes patches that aren't PPC specific but benefit/impact
PPC machines, such as the changes to guestperf.py, mv64361 and sm501. As
for PPC specific changes we have e500 and PNV_PHB5 fixes.
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# gpg: Signature made Sun 05 Feb 2023 10:02:49 GMT
# gpg: using EDDSA key 17EBFF9923D01800AF2838193CD9CA96DE033164
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# gpg: Good signature from "Daniel Henrique Barboza <danielhb413@gmail.com>" [unknown]
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* tag 'pull-ppc-20230205' of https://gitlab.com/danielhb/qemu:
hw/display/sm501: Code style fix
hw/display/sm501: Remove unneeded casts from void pointer
hw/display/sm501: Remove parenthesis around constant macro definitions
hw/ppc/pegasos2: Fix a typo in a comment
ppc/pnv/pci: Fix PHB xscom registers memory region name
ppc/pnv/pci: Update PHB5 version register
ppc/pnv/pci: Remove duplicate definition of PNV_PHB5_DEVICE_ID
ppc/pnv/pci: Cleanup PnvPHBPecState structure
hw/ppc/e500.c: Attach eSDHC unimplemented region to ccsr_addr_space
hw/ppc/e500.c: Avoid hardcoding parent device in create_devtree_etsec()
hw/ppc/e500{, plat}: Drop redundant checks for presence of platform bus
hw/ppc: Set machine->fdt in e500 machines
hw/pci-host/mv64361: Reuse pci_swizzle_map_irq_fn
ppc/pegasos2: Improve readability of VIA south bridge creation
tests/migration: add support for ppc64le for guestperf.py
tests/migration: add sysprof-capture-4 as dependency for stress binary
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is not needed in C.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <58f599387dd0739ea1880bfb678872c0be26bf1b.1674333199.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
No need to wrap constants in parenthesis.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <9194546b73b05e7098761ec62b2dfd0699b97b65.1674333199.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reported-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230203194312.33834745712@zero.eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
The name is for the region mapping the PHB xscom registers. It was
apparently a bad cut-and-paste from the per-stack pci xscom area just
above, so we had two regions with the same name.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230127122848.550083-5-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Update register value per its P10 DD2 definition.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230127122848.550083-4-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
PNV_PHB5_DEVICE_ID is defined in two different headers. The definition
in hw/pci-host/pnv_phb4.h was left out in a previous rework.
Remaining definition is in hw/pci-host/pnv_phb.h.
Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20230127122848.550083-3-fbarrat@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Makes the unimplemented region move together with the CCSR address space
if moved by a bootloader. Moving the CCSR address space isn't
implemented yet but this patch is a preparation for it.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230125130024.158721-5-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
The "platform" node is available through data->node, so use that instead
of making assumptions about the parent device.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20230125130024.158721-4-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This is a follow-up on commit 47a0b1dff7 'hw/ppc/mpc8544ds: Add
platform bus': Both mpc85xx boards now have a platform bus
unconditionally.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20230125130024.158721-3-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This enables support for the 'dumpdtb' QMP/HMP command for all
e500 machines.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20230125130024.158721-2-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
mv64361_pcihost_map_irq() is a reimplementation of
pci_swizzle_map_irq_fn(). Resolve this redundancy.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20230106113927.8603-1-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Slightly improve readability of creating the south btidge by cnamging
type of a local variable to avoid some casts within function arguments
which makes some lines shorter and easier to read.
Also remove an unneded line break.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230117214545.5E191746369@zero.eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Add support for ppc64le for guestperf.py. On ppc, console is usually
hvc0 and serial device for pseries machine is spapr-vty.
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20220809002451.91541-3-muriloo@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
`make tests/migration/stress` fails with:
FAILED: tests/migration/stress
cc -m64 -mlittle-endian -o tests/migration/stress tests/migration/stress.p/stress.c.o -Wl,--as-needed -Wl,--no-undefined -pie -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -fstack-protector-strong -static -pthread -Wl,--start-group -lgthread-2.0 -lglib-2.0 -Wl,--end-group
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/11/../../../../lib64/libglib-2.0.a(gutils.c.o): in function `.annobin_gutils.c':
(.text+0x3b4): warning: Using 'getpwuid' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/bin/ld: (.text+0x178): warning: Using 'getpwnam_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/bin/ld: (.text+0x1bc): warning: Using 'getpwuid_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/11/../../../../lib64/libglib-2.0.a(gthread.c.o):(.toc+0x0): undefined reference to `sysprof_clock'
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/11/../../../../lib64/libglib-2.0.a(gtrace.c.o): in function `.annobin_gtrace.c':
(.text+0x24): undefined reference to `sysprof_collector_mark_vprintf'
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/11/../../../../lib64/libglib-2.0.a(gtrace.c.o): in function `g_trace_define_int64_counter':
(.text+0x8c): undefined reference to `sysprof_collector_request_counters'
/usr/bin/ld: (.text+0x108): undefined reference to `sysprof_collector_define_counters'
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/11/../../../../lib64/libglib-2.0.a(gtrace.c.o): in function `g_trace_set_int64_counter':
(.text+0x23c): undefined reference to `sysprof_collector_set_counters'
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/11/../../../../lib64/libglib-2.0.a(gspawn.c.o):(.toc+0x0): undefined reference to `sysprof_clock'
/usr/bin/ld: /usr/lib/gcc/ppc64le-redhat-linux/11/../../../../lib64/libglib-2.0.a(gmain.c.o):(.toc+0x0): undefined reference to `sysprof_clock'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
make: *** [Makefile:162: run-ninja] Error 1
Add sysprof-capture-4 as dependency for stress binary.
Tested on:
- CentOS Stream 9 ppc64le
- Fedora 36 x86_64
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20220809002451.91541-2-muriloo@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
tcg: Add support for TCGv_i128 in cmpxchg.
tcg: Test CPUJumpCache in tb_jmp_cache_clear_page
tcg: Split out tcg_gen_nonatomic_cmpxchg_i{32,64}
tcg/aarch64: Fix patching of LDR in tb_target_set_jmp_target
target/arm: Use tcg_gen_atomic_cmpxchg_i128
target/i386: Use tcg_gen_atomic_cmpxchg_i128
target/i386: Use tcg_gen_nonatomic_cmpxchg_i{32,64}
target/s390x: Use tcg_gen_atomic_cmpxchg_i128
target/s390x: Use TCGv_i128 in passing and returning float128
target/s390x: Implement CC_OP_NZ in gen_op_calc_cc
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Merge tag 'pull-tcg-20230204' of https://gitlab.com/rth7680/qemu into staging
tcg: Add support for TCGv_i128 in parameters and returns.
tcg: Add support for TCGv_i128 in cmpxchg.
tcg: Test CPUJumpCache in tb_jmp_cache_clear_page
tcg: Split out tcg_gen_nonatomic_cmpxchg_i{32,64}
tcg/aarch64: Fix patching of LDR in tb_target_set_jmp_target
target/arm: Use tcg_gen_atomic_cmpxchg_i128
target/i386: Use tcg_gen_atomic_cmpxchg_i128
target/i386: Use tcg_gen_nonatomic_cmpxchg_i{32,64}
target/s390x: Use tcg_gen_atomic_cmpxchg_i128
target/s390x: Use TCGv_i128 in passing and returning float128
target/s390x: Implement CC_OP_NZ in gen_op_calc_cc
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# gpg: Signature made Sat 04 Feb 2023 16:30:46 GMT
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* tag 'pull-tcg-20230204' of https://gitlab.com/rth7680/qemu: (40 commits)
tcg/aarch64: Fix patching of LDR in tb_target_set_jmp_target
target/i386: Inline cmpxchg16b
target/i386: Inline cmpxchg8b
target/i386: Split out gen_cmpxchg8b, gen_cmpxchg16b
target/s390x: Implement CC_OP_NZ in gen_op_calc_cc
target/s390x: Use tcg_gen_atomic_cmpxchg_i128 for CDSG
target/s390x: Use Int128 for passing float128
target/s390x: Use Int128 for returning float128
target/s390x: Copy wout_x1 to wout_x1_P
target/s390x: Use Int128 for return from TRE
target/s390x: Use Int128 for return from CKSM
target/s390x: Use Int128 for return from CLST
target/s390x: Use a single return for helper_divs64/u64
target/s390x: Use a single return for helper_divs32/u32
tests/tcg/s390x: Add cdsg.c
tests/tcg/s390x: Add long-double.c
tests/tcg/s390x: Add clst.c
tests/tcg/s390x: Add div.c
target/ppc: Use tcg_gen_atomic_cmpxchg_i128 for STQCX
target/arm: Use tcg_gen_atomic_cmpxchg_i128 for CASP
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
'offset' should be bits [23:5] of LDR instruction, rather than [4:0].
Fixes: d59d83a1c3 ("tcg/aarch64: Reorg goto_tb implementation")
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use tcg_gen_atomic_cmpxchg_i128 for the atomic case,
and tcg_gen_qemu_ld/st_i128 otherwise.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use tcg_gen_atomic_cmpxchg_i64 for the atomic case,
and tcg_gen_nonatomic_cmpxchg_i64 otherwise.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
