Following changes are implemented in this series.
1. Fixed the cache(L2,L3) property details in all the EPYC models.
2. Add RAS feature bits (SUCCOR, McaOverflowRecov) on all EPYC models
3. Add missing SVM feature bits required for nested guests on all EPYC models
4. Add the missing feature bit fs-gs-base-ns(WRMSR to {FS,GS,KERNEL_G}S_BASE is
non-serializing). This bit is added in EPYC-Genoa and EPYC-Turin models.
5. Add RAS, SVM, fs-gs-base-ns and perfmon-v2 on EPYC-Genoa and EPYC-Turin
models.
6. Add support for EPYC-Turin.
(Add all the above feature bits and few additional bits movdiri, movdir64b,
avx512-vp2intersect, avx-vnni, prefetchi, sbpb, ibpb-brtype,
srso-user-kernel-no).
Link:
https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/57238.zip
Link:
https://www.amd.com/content/dam/amd/en/documents/corporate/cr/speculative-return-stack-overflow-whitepaper.pdf
---
v7: Rebased on top latest 57b6f8d07f14 (upstream/master) Merge tag
'pull-target-arm-20250506'
Added new feature bit PREFETCHI. KVM support for the bit is added recently.
https://github.com/kvm-x86/linux/commit/d88bb2ded2ef
Paolo, These patches have been pending for a while. Please consider merging
when you get a chance.
v6: Initialized the boolean feature bits to true where applicable.
Added Reviewed-by tag from Zhao.
v5: Add EPYC-Turin CPU model
Dropped ERAPS and RAPSIZE bits from EPYC-Turin models as kernel support for
these bits are not done yet. Users can still use the options +eraps,+rapsize
to test these featers.
Add Reviewed-by tag from Maksim for the patches already reviewed.
v4: Some of the patches in v3 are already merged. Posting the rest of the
patches.
Dropped EPYC-Turin model for now. Will post them later.
Added SVM feature bit as discussed in
https://lore.kernel.org/kvm/b4b7abae-669a-4a86-81d3-d1f677a82...@redhat.com/
Fixed the cache property details as discussed in
https://lore.kernel.org/kvm/20230504205313.225073-8-babu.mo...@amd.com/
Thanks to Maksim and Paolo for their feedback.
v3: Added SBPB, IBPB_BRTYPE, SRSO_USER_KERNEL_NO, ERAPS and RAPSIZE bits
to EPYC-Turin.
Added new patch(1) to fix a minor typo.
v2: Fixed couple of typos.
Added Reviewed-by tag from Zhao.
Rebased on top of 6d00c6f98256 ("Merge tag 'for-upstream' of
https://repo.or.cz/qemu/kevin into staging")
Previous revisions:
v6: https://lore.kernel.org/kvm/cover.1740766026.git.babu.mo...@amd.com/
v5: https://lore.kernel.org/kvm/cover.1738869208.git.babu.mo...@amd.com/
v4: https://lore.kernel.org/kvm/cover.1731616198.git.babu.mo...@amd.com/
v3: https://lore.kernel.org/kvm/cover.1729807947.git.babu.mo...@amd.com/
v2: https://lore.kernel.org/kvm/cover.1723068946.git.babu.mo...@amd.com/
v1: https://lore.kernel.org/qemu-devel/cover.1718218999.git.babu.mo...@amd.com/
Babu Moger (6):
target/i386: Update EPYC CPU model for Cache property, RAS, SVM
feature bits
target/i386: Update EPYC-Rome CPU model for Cache property, RAS, SVM
feature bits
target/i386: Update EPYC-Milan CPU model for Cache property, RAS, SVM
feature bits
target/i386: Add couple of feature bits in CPUID_Fn80000021_EAX
target/i386: Update EPYC-Genoa for Cache property, perfmon-v2, RAS and
SVM feature bits
target/i386: Add support for EPYC-Turin model
target/i386/cpu.c | 439 +++++++++++++++++++++++++++++++++++++++++++++-
target/i386/cpu.h | 4 +
2 files changed, 441 insertions(+), 2 deletions(-)
--
2.34.1
