[PATCH v2] RISC-V: KVM: Fix csr_write -> csr_set for HVIEN PMU overflow bit

[Anup Patel]

On Wed, Nov 27, 2024 at 9:49 AM Michael Neuling
<michaelneuling at tenstorrent.com> wrote:
>
> This doesn't cause a problem currently as HVIEN isn't used elsewhere
> yet. Found by inspection.
>
> Signed-off-by: Michael Neuling <michaelneuling at tenstorrent.com>
> Fixes: 16b0bde9a37c ("RISC-V: KVM: Add perf sampling support for guests")
> Reviewed-by: Atish Patra <atishp at rivosinc.com>
> Reviewed-by: Anup Patel <anup at brainfault.org>

Queued for 6.13-rcX fixes

Regards,
Anup

> ---
> v2:
>   Added Fixes tag
>   Added Reviews
>   No code change
> ---
>  arch/riscv/kvm/aia.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/kvm/aia.c b/arch/riscv/kvm/aia.c
> index 2967d305c4..9f3b527596 100644
> --- a/arch/riscv/kvm/aia.c
> +++ b/arch/riscv/kvm/aia.c
> @@ -552,7 +552,7 @@ void kvm_riscv_aia_enable(void)
>         csr_set(CSR_HIE, BIT(IRQ_S_GEXT));
>         /* Enable IRQ filtering for overflow interrupt only if sscofpmf is present */
>         if (__riscv_isa_extension_available(NULL, RISCV_ISA_EXT_SSCOFPMF))
> -               csr_write(CSR_HVIEN, BIT(IRQ_PMU_OVF));
> +               csr_set(CSR_HVIEN, BIT(IRQ_PMU_OVF));
>  }
>
>  void kvm_riscv_aia_disable(void)
> --
> 2.34.1
>