accel/tcg: include cs_base in our hash calculations

We weren't using cs_base in the hash calculations before. Since the
arm front end moved a chunk of flags in a378206a20 (target/arm: Move
mode spec

accel/tcg: include cs_base in our hash calculations

We weren't using cs_base in the hash calculations before. Since the
arm front end moved a chunk of flags in a378206a20 (target/arm: Move
mode specific TB flags to tb->cs_base) they comprise of an important
part of the execution state.

Widen the tb_hash_func to include cs_base and expand to qemu_xxhash8()
to accommodate it.

My initial benchmark shows very little difference in the
runtime.

Before:

armhf

➜ hyperfine -w 2 -m 20 "./arm-softmmu/qemu-system-arm -cpu cortex-a15 -machine type=virt,highmem=off -display none -m 2048 -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-armhf -device scsi-hd,drive=hd -smp 4 -kernel /home/alex/lsrc/linux.git/builds/arm/arch/arm/boot/zImage -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark.service' -snapshot"
Benchmark 1: ./arm-softmmu/qemu-system-arm -cpu cortex-a15 -machine type=virt,highmem=off -display none -m 2048 -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-armhf -device scsi-hd,drive=hd -smp 4 -kernel /home/alex/lsrc/linux.git/builds/arm/arch/arm/boot/zImage -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark.service' -snapshot
Time (mean ± σ): 24.627 s ± 2.708 s [User: 34.309 s, System: 1.797 s]
Range (min … max): 22.345 s … 29.864 s 20 runs

arm64

➜ hyperfine -w 2 -n 20 "./qemu-system-aarch64 -cpu max,pauth-impdef=on -machine type=virt,virtualization=on,gic-version=3 -display none -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22,hostfwd=tcp::1234-:1234 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-arm64 -device scsi-hd,drive=hd -smp 4 -kernel ~/lsrc/linux.git/builds/arm64/arch/arm64/boot/Image.gz -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark-pigz.service' -snapshot"
Benchmark 1: 20
Time (mean ± σ): 62.559 s ± 2.917 s [User: 189.115 s, System: 4.089 s]
Range (min … max): 59.997 s … 70.153 s 10 runs

After:

armhf

Benchmark 1: ./arm-softmmu/qemu-system-arm -cpu cortex-a15 -machine type=virt,highmem=off -display none -m 2048 -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-armhf -device scsi-hd,drive=hd -smp 4 -kernel /home/alex/lsrc/linux.git/builds/arm/arch/arm/boot/zImage -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark.service' -snapshot
Time (mean ± σ): 24.223 s ± 2.151 s [User: 34.284 s, System: 1.906 s]
Range (min … max): 22.000 s … 28.476 s 20 runs

arm64

hyperfine -w 2 -n 20 "./qemu-system-aarch64 -cpu max,pauth-impdef=on -machine type=virt,virtualization=on,gic-version=3 -display none -serial mon:stdio -netdev user,id=unet,hostfwd=tcp::2222-:22,hostfwd=tcp::1234-:1234 -device virtio-net-pci,netdev=unet -device virtio-scsi-pci -blockdev driver=raw,node-name=hd,discard=unmap,file.driver=host_device,file.filename=/dev/zen-disk/debian-bullseye-arm64 -device scsi-hd,drive=hd -smp 4 -kernel ~/lsrc/linux.git/builds/arm64/arch/arm64/boot/Image.gz -append 'console=ttyAMA0 root=/dev/sda2 systemd.unit=benchmark-pigz.service' -snapshot"
Benchmark 1: 20
Time (mean ± σ): 62.769 s ± 1.978 s [User: 188.431 s, System: 5.269 s]
Range (min … max): 60.285 s … 66.868 s 10 runs

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230526165401.574474-12-alex.bennee@linaro.org
Message-Id: <20230524133952.3971948-11-alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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target/arm: Implement an IMPDEF pauth algorithm

Without hardware acceleration, a cryptographically strong
algorithm is too expensive for pauth_computepac.

Even with hardware acc

target/arm: Implement an IMPDEF pauth algorithm

Without hardware acceleration, a cryptographically strong
algorithm is too expensive for pauth_computepac.

Even with hardware accel, we are not currently expecting
to link the linux-user binaries to any crypto libraries,
and doing so would generally make the --static build fail.

So choose XXH64 as a reasonably quick and decent hash.

Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210111235740.462469-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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Merge remote-tracking branch 'remotes/xtensa/tags/20190122-xtensa' into staging

target/xtensa: zero overhead loops rework/helpers split

- change xtensa zero overhead loops implement

Merge remote-tracking branch 'remotes/xtensa/tags/20190122-xtensa' into staging

target/xtensa: zero overhead loops rework/helpers split

- change xtensa zero overhead loops implementation to avoid invalidation
of TBs corresponding to previous loop body when a new loop is
encountered;
- extract helper function groups from op_helper.c and move them into
separate source files: exc_helper.c (exception helpers), win_helper.c
(windowed registers helpers), fpu_helper.c (floating point helpers),
mmu_helper.c (memory management helpers) and dbg_helper.c (native debug
helpers).

# gpg: Signature made Tue 22 Jan 2019 18:44:17 GMT
# gpg: using RSA key 51F9CC91F83FA044
# gpg: Good signature from "Max Filippov <filippov@cadence.com>"
# gpg: aka "Max Filippov <max.filippov@cogentembedded.com>"
# gpg: aka "Max Filippov <jcmvbkbc@gmail.com>"
# Primary key fingerprint: 2B67 854B 98E5 327D CDEB 17D8 51F9 CC91 F83F A044

* remotes/xtensa/tags/20190122-xtensa:
target/xtensa: move non-HELPER functions to helper.c
target/xtensa: drop dump_state helper
target/xtensa: extract interrupt and exception helpers
target/xtensa: extract debug helpers
target/xtensa: extract MMU helpers
target/xtensa: extract windowed registers helpers
target/xtensa: extract FPU helpers
target/xtensa: rework zero overhead loops implementation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2018-12-17' into staging

- Replace global_qtest in some tests
- Exit boot-serial-test loop if child dies
- Sanitiz

Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2018-12-17' into staging

- Replace global_qtest in some tests
- Exit boot-serial-test loop if child dies
- Sanitize verbose output in biot-tables-test

# gpg: Signature made Mon 17 Dec 2018 16:08:07 GMT
# gpg: using RSA key 2ED9D774FE702DB5
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>"
# gpg: aka "Thomas Huth <thuth@redhat.com>"
# gpg: aka "Thomas Huth <huth@tuxfamily.org>"
# gpg: aka "Thomas Huth <th.huth@posteo.de>"
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2018-12-17:
tests/bios-tables-test: Sanitize test verbose output
tests: acpi: remove not used ACPI_READ_GENERIC_ADDRESS macro
tests: Exit boot-serial-test loop if child dies
tests/pxe: Make test independent of global_qtest
tests/prom-env: Make test independent of global_qtest
tests/machine-none: Make test independent of global_qtest
tests/test-filter: Make tests independent of global_qtest
tests/boot-serial: Get rid of global_qtest variable
tests/pvpanic: Make the pvpanic test independent of global_qtest
tests/vmgenid: Make test independent of global_qtest
tests/acpi-utils: Drop dependence on global_qtest
ivshmem-test: Drop dependence on global_qtest
tests/libqos/pci: Make PCI access functions independent of global_qtest

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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Merge remote-tracking branch 'remotes/stsquad/tags/pull-hardfloat-and-gitdm-171218-3' into staging

Hardfloat + maintainers and gitdm

# gpg: Signature made Mon 17 Dec 2018 10:55:19 G

Merge remote-tracking branch 'remotes/stsquad/tags/pull-hardfloat-and-gitdm-171218-3' into staging

Hardfloat + maintainers and gitdm

# gpg: Signature made Mon 17 Dec 2018 10:55:19 GMT
# gpg: using RSA key FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-hardfloat-and-gitdm-171218-3:
hardfloat: implement float32/64 comparison
hardfloat: implement float32/64 square root
hardfloat: implement float32/64 fused multiply-add
hardfloat: implement float32/64 division
hardfloat: implement float32/64 multiplication
hardfloat: implement float32/64 addition and subtraction
fpu: introduce hardfloat
tests/fp: add fp-bench
softfloat: add float{32,64}_is_zero_or_normal
softfloat: rename canonicalize to sf_canonicalize
target/tricore: use float32_is_denormal
softfloat: add float{32,64}_is_{de,}normal
fp-test: pick TARGET_ARM to get its specialization
MAINTAINERS: update status of FPU emulation
contrib: add a basic gitdm config

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20181216' into staging

- Remove retranslation remenents
- Return success from patch_reloc
- Preserve 32-bit values as zero-ext

Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20181216' into staging

- Remove retranslation remenents
- Return success from patch_reloc
- Preserve 32-bit values as zero-extended on x86_64
- Make bswap during memory ops as optional
- Cleanup xxhash
- Revert constant pooling for tcg/sparc/

# gpg: Signature made Mon 17 Dec 2018 03:25:21 GMT
# gpg: using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20181216: (33 commits)
xxhash: match output against the original xxhash32
include: move exec/tb-hash-xx.h to qemu/xxhash.h
exec: introduce qemu_xxhash{2,4,5,6,7}
qht-bench: document -p flag
tcg: Drop nargs from tcg_op_insert_{before,after}
tcg/mips: Improve the add2/sub2 command to use TCG_TARGET_REG_BITS
tcg: Add TCG_TARGET_HAS_MEMORY_BSWAP
tcg/optimize: Optimize bswap
tcg: Clean up generic bswap64
tcg: Clean up generic bswap32
tcg/i386: Add setup_guest_base_seg for FreeBSD
tcg/i386: Precompute all guest_base parameters
tcg/i386: Assume 32-bit values are zero-extended
tcg/i386: Implement INDEX_op_extr{lh}_i64_i32 for 32-bit guests
tcg/i386: Propagate is64 to tcg_out_qemu_ld_slow_path
tcg/i386: Propagate is64 to tcg_out_qemu_ld_direct
tcg/s390x: Return false on failure from patch_reloc
tcg/ppc: Return false on failure from patch_reloc
tcg/arm: Return false on failure from patch_reloc
tcg/aarch64: Return false on failure from patch_reloc
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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xxhash: match output against the original xxhash32

Change the order in which we extract a/b and c/d to
match the output of the upstream xxhash32.

Tested with:
https://gith

xxhash: match output against the original xxhash32

Change the order in which we extract a/b and c/d to
match the output of the upstream xxhash32.

Tested with:
https://github.com/cota/xxhash/tree/qemu

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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include: move exec/tb-hash-xx.h to qemu/xxhash.h

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <ri

include: move exec/tb-hash-xx.h to qemu/xxhash.h

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...