Hi!
On 11/14/24 23:36, Babu Moger wrote:
This series addresses the following issues with EPYC CPU models.
1. Update the L1, L2, L3 cache properties to match the actual hardware (PPR).
This needs to be updated on all the EPYC models.
2. RAS feature bits (SUCCOR, McaOverflowRecov).
3. Add SVM feature bits which are required in nested guests.
4. Add perfmon-v2 on Genoa.
5. Add missing feature bit fs-gs-base-ns(WRMSR to {FS,GS,KERNEL_G}S_BASE
is non-serializing).
Seems good for me. I've tested cache changes.
If needed, Reviewed-by: Maksim Davydov <davydov-max@xxxxxxxxxxxxxx>
Dropped EPYC-Turin model for now. Some of the feature bits
(srso-user-kernel-no, eraps, rapsize) are still work in progress in
the kernel. Will post them later.
Link: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/57238.zip
---
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.
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")
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 (5):
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 feature that indicates WRMSR to BASE reg is
non-serializing
target/i386: Update EPYC-Genoa for Cache property, perfmon-v2, RAS and
SVM feature bits
target/i386/cpu.c | 299 +++++++++++++++++++++++++++++++++++++++++++++-
target/i386/cpu.h | 2 +
2 files changed, 300 insertions(+), 1 deletion(-)
--
Best regards,
Maksim Davydov
