> On May 8, 2025, at 3:57 PM, Babu Moger <babu.moger@xxxxxxx> wrote:
>
> 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-d1f677a82929@xxxxxxxxxx/
> Fixed the cache property details as discussed in
> https://lore.kernel.org/kvm/20230504205313.225073-8-babu.moger@xxxxxxx/
> 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.moger@xxxxxxx/
> v5: https://lore.kernel.org/kvm/cover.1738869208.git.babu.moger@xxxxxxx/
> v4: https://lore.kernel.org/kvm/cover.1731616198.git.babu.moger@xxxxxxx/
> v3: https://lore.kernel.org/kvm/cover.1729807947.git.babu.moger@xxxxxxx/
> v2: https://lore.kernel.org/kvm/cover.1723068946.git.babu.moger@xxxxxxx/
> v1: https://lore.kernel.org/qemu-devel/cover.1718218999.git.babu.moger@xxxxxxx/
>
> 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(-)
Hey Babu and Paolo,
Is there anything outstanding on this series? I didn’t see any
further comments.
Anyhow, I did step thru this patch by patch, LGTM:
Reviewed-By: Jon Kohler <jon@xxxxxxxxxxx <mailto:jon@xxxxxxxxxxx>>
