Pierrick Bouvier 132f8ec799 target/arm: change default pauth algorithm to impdef ... Pointer authentication on aarch64 is pretty expensive (up to 50% of execution time) when running a virtual machine with tcg and -cpu max (which enables pauth=on). The advice is always: use pauth-impdef=on. Our documentation even mentions it "by default" in docs/system/introduction.rst. Thus, we change the default to use impdef by default. This does not affect kvm or hvf acceleration, since pauth algorithm used is the one from host cpu. This change is retro compatible, in terms of cli, with previous versions, as the semantic of using -cpu max,pauth-impdef=on, and -cpu max,pauth-qarma3=on is preserved. The new option introduced in previous patch and matching old default is -cpu max,pauth-qarma5=on. It is retro compatible with migration as well, by defining a backcompat property, that will use qarma5 by default for virt machine <= 9.2. Tested by saving and restoring a vm from qemu 9.2.0 into qemu-master (10.0) for cpus neoverse-n2 and max. Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20241219183211.3493974-3-pierrick.bouvier@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>		2025-01-13 12:35:34 +00:00
..
arm	target/arm: change default pauth algorithm to impdef	2025-01-13 12:35:34 +00:00
devices	hw/misc/ivshmem-flat: Add ivshmem-flat device	2024-12-31 21:21:27 +01:00
i386	docs/nitro-enclave: Fix terminal commands formatting	2024-12-13 15:26:58 +01:00
loongarch	roms: Support compile the efi bios for loongarch	2024-09-17 10:26:26 +02:00
openrisc	docs/system: openrisc: Add OpenRISC documentation	2022-09-04 07:02:57 +01:00
ppc	ppc/pseries: Add Power11 cpu type	2024-11-04 09:12:47 +10:00
riscv	hw/riscv: Add Microblaze V generic board	2024-12-20 11:22:47 +10:00
s390x	docs/system/s390x/bootdevices: Update loadparm documentation	2024-11-18 10:54:42 +01:00
authz.rst	docs: Drop deprecated 'props' from object-add	2021-11-22 15:02:38 +01:00
barrier.rst	docs: Move user-facing barrier docs into system manual	2021-08-02 12:55:51 +01:00
bootindex.rst	docs/system/bootindex: Make it clear that s390x can also boot from virtio-net	2024-11-18 10:54:42 +01:00
confidential-guest-support.rst	docs: rstfy confidential guest documentation	2022-02-09 09:08:56 +01:00
cpu-hotplug.rst	docs/system/cpu-hotplug: Update example's socket-id/core-id	2024-10-29 15:04:46 +00:00
cpu-models-mips.rst.inc	docs/system: Update MIPS CPU documentation	2020-10-17 13:59:40 +02:00
cpu-models-x86-abi.csv	docs: re-generate x86_64 ABI compatibility CSV	2024-02-09 12:48:11 +00:00
cpu-models-x86.rst.inc	docs: fix highlighting of CPU ABI header rows	2024-02-09 12:48:10 +00:00
device-emulation.rst	hw/misc/ivshmem-flat: Add ivshmem-flat device	2024-12-31 21:21:27 +01:00
device-url-syntax.rst.inc	block/gluster: Remove deprecated RDMA protocol handling	2024-04-24 16:03:38 +02:00
gdb.rst	docs/system: clarify limits of using gdbstub in system emulation	2023-11-23 14:10:06 +00:00
generic-loader.rst	docs: Move licence/copyright from HTML output to rST comments	2021-08-02 11:42:38 +01:00
guest-loader.rst	docs/system: remove excessive punctuation from guest-loader docs	2023-04-27 14:58:41 +01:00
images.rst	docs: Render binary names as monospaced text	2021-11-22 15:02:38 +01:00
index.rst	Revert "docs: Document composable SR-IOV device"	2024-08-01 04:32:00 -04:00
introduction.rst	target/arm: change default pauth algorithm to impdef	2025-01-13 12:35:34 +00:00
invocation.rst	qemu-options: Clarify handling of commas in options parameters	2023-12-20 10:29:23 +01:00
keys.rst	docs: Remove unused weirdly-named cross-reference targets	2023-05-12 15:43:38 +01:00
keys.rst.inc	docs/system: Update description for input grab key	2024-02-22 08:58:43 +03:00
linuxboot.rst	docs: Remove unused weirdly-named cross-reference targets	2023-05-12 15:43:38 +01:00
managed-startup.rst	docs/system: convert managed startup to rST.	2020-03-06 10:05:12 +00:00
monitor.rst	docs: Get rid of the weird _005f links in the man page	2020-11-20 13:19:08 +01:00
multi-process.rst	docs: fix multi-process QEMU documentation	2023-06-07 10:21:53 -04:00
mux-chardev.rst	docs: Get rid of the weird _005f links in the man page	2020-11-20 13:19:08 +01:00
mux-chardev.rst.inc	docs: Split out sections for the manpage into .rst.inc files	2020-03-06 11:06:55 +00:00
pr-manager.rst	docs/system/pr-manager.rst: Fix minor docs nits	2020-11-23 11:10:04 +00:00
qemu-block-drivers.rst	docs/system: standardize man page sections to --- with overline	2021-09-13 13:56:26 +02:00
qemu-block-drivers.rst.inc	block/gluster: Remove deprecated RDMA protocol handling	2024-04-24 16:03:38 +02:00
qemu-cpu-models.rst	docs/system: standardize man page sections to --- with overline	2021-09-13 13:56:26 +02:00
qemu-manpage.rst	qemu-options: Clarify handling of commas in options parameters	2023-12-20 10:29:23 +01:00
replay.rst	target/nios2: Remove the deprecated Nios II target	2024-04-24 16:03:38 +02:00
secrets.rst	docs: document how to pass secret data to QEMU	2021-06-14 13:28:50 +01:00
security.rst	docs/system: Convert security.texi to rST format	2020-03-06 10:05:12 +00:00
target-arm.rst	docs/system/target-arm.rst: Remove "many boards are undocumented" note	2024-10-29 15:04:47 +00:00
target-avr.rst	docs: update to show preferred boolean syntax for -chardev	2021-02-25 14:14:33 +01:00
target-i386-desc.rst.inc	docs: i386: pc: Avoid mentioning limit of maximum vCPUs	2024-06-08 10:33:38 +02:00
target-i386.rst	docs/nitro-enclave: Documentation for nitro-enclave machine type	2024-10-31 18:28:33 +01:00
target-m68k.rst	docs: Roll semihosting option information into qemu-options.hx	2020-03-06 10:05:12 +00:00
target-mips.rst	docs/system: Remove "mips" board from target-mips.rst	2023-03-07 18:08:12 +01:00
target-openrisc.rst	docs/system: openrisc: Add OpenRISC documentation	2022-09-04 07:02:57 +01:00
target-ppc.rst	docs/system/ppc: Document running Linux on AmigaNG machines	2024-03-13 02:47:04 +10:00
target-riscv.rst	hw/riscv: Add Microblaze V generic board	2024-12-20 11:22:47 +10:00
target-rx.rst	docs: Document the RX target	2020-06-22 18:37:12 +02:00
target-s390x.rst	docs/s390x/cpu topology: document s390x cpu topology	2023-10-20 07:16:53 +02:00
target-sparc.rst	docs/system/target-sparc: Improve the Sparc documentation	2024-05-05 21:02:48 +01:00
target-sparc64.rst	docs: Roll -prom-env and -g target-specific info into qemu-options.hx	2020-03-06 10:05:18 +00:00
target-xtensa.rst	docs: Roll semihosting option information into qemu-options.hx	2020-03-06 10:05:12 +00:00
targets.rst	docs/system: openrisc: Add OpenRISC documentation	2022-09-04 07:02:57 +01:00
tls.rst	misc: fix commonly doubled up words	2022-08-01 11:58:02 +02:00
virtio-net-failover.rst	docs: Move virtio-net-failover.rst into the system manual	2020-11-23 11:07:41 +00:00
vm-templating.rst	docs: Start documenting VM templating	2023-09-19 10:23:21 +02:00
vnc-security.rst	docs: recommend SCRAM-SHA-256 SASL mech instead of SHA-1 variant	2021-06-14 13:28:50 +01:00