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[0/2] Fixes for KVM PMU trap/emulation

Message ID 20240816-kvm_pmu_fixes-v1-0-cdfce386dd93@rivosinc.com (mailing list archive)
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Series Fixes for KVM PMU trap/emulation | expand

Message

Atish Patra Aug. 16, 2024, 7:08 a.m. UTC 
This series contains two small fixes to improve the KVM PMU trap/emulation
code. The issue can be observed if SBI PMU is disabled or forced the kvm
to use hpmcounter31.

Signed-off-by: Atish Patra <atishp@rivosinc.com>
---
Atish Patra (2):
      RISC-V: KVM: Allow legacy PMU access from guest
      RISC-V: KVM: Fix to allow hpmcounter31 from the guest

 arch/riscv/include/asm/kvm_vcpu_pmu.h | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)
---
base-commit: 8400291e289ee6b2bf9779ff1c83a291501f017b
change-id: 20240729-kvm_pmu_fixes-26754d2a077d
--
Regards,
Atish patra

Comments

Anup Patel Aug. 20, 2024, 5:40 a.m. UTC | #1 
On Fri, Aug 16, 2024 at 12:38 PM Atish Patra <atishp@rivosinc.com> wrote:
>
> This series contains two small fixes to improve the KVM PMU trap/emulation
> code. The issue can be observed if SBI PMU is disabled or forced the kvm
> to use hpmcounter31.
>
> Signed-off-by: Atish Patra <atishp@rivosinc.com>
> ---
> Atish Patra (2):
>       RISC-V: KVM: Allow legacy PMU access from guest
>       RISC-V: KVM: Fix to allow hpmcounter31 from the guest

Queued this patch for Linux-6.11 fixes.

Regards,
Anup

>
>  arch/riscv/include/asm/kvm_vcpu_pmu.h | 21 +++++++++++++++++----
>  1 file changed, 17 insertions(+), 4 deletions(-)
> ---
> base-commit: 8400291e289ee6b2bf9779ff1c83a291501f017b
> change-id: 20240729-kvm_pmu_fixes-26754d2a077d
> --
> Regards,
> Atish patra
>