| Message ID | 20240517145302.971019-5-cleger@rivosinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for a few Zc* extensions, Zcmop and Zimop | expand |
On Fri, May 17, 2024 at 8:23 PM Clément Léger <cleger@rivosinc.com> wrote: > > Extend the KVM ISA extension ONE_REG interface to allow KVM user space > to detect and enable Zimop extension for Guest/VM. > > Signed-off-by: Clément Léger <cleger@rivosinc.com> LGTM. Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Anup Patel <anup@brainfault.org> Regards, Anup > --- > arch/riscv/include/uapi/asm/kvm.h | 1 + > arch/riscv/kvm/vcpu_onereg.c | 2 ++ > 2 files changed, 3 insertions(+) > > diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h > index b1c503c2959c..35a12aa1953e 100644 > --- a/arch/riscv/include/uapi/asm/kvm.h > +++ b/arch/riscv/include/uapi/asm/kvm.h > @@ -167,6 +167,7 @@ enum KVM_RISCV_ISA_EXT_ID { > KVM_RISCV_ISA_EXT_ZFA, > KVM_RISCV_ISA_EXT_ZTSO, > KVM_RISCV_ISA_EXT_ZACAS, > + KVM_RISCV_ISA_EXT_ZIMOP, > KVM_RISCV_ISA_EXT_MAX, > }; > > diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c > index f4a6124d25c9..c6ee763422f2 100644 > --- a/arch/riscv/kvm/vcpu_onereg.c > +++ b/arch/riscv/kvm/vcpu_onereg.c > @@ -60,6 +60,7 @@ static const unsigned long kvm_isa_ext_arr[] = { > KVM_ISA_EXT_ARR(ZIHINTNTL), > KVM_ISA_EXT_ARR(ZIHINTPAUSE), > KVM_ISA_EXT_ARR(ZIHPM), > + KVM_ISA_EXT_ARR(ZIMOP), > KVM_ISA_EXT_ARR(ZKND), > KVM_ISA_EXT_ARR(ZKNE), > KVM_ISA_EXT_ARR(ZKNH), > @@ -137,6 +138,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) > case KVM_RISCV_ISA_EXT_ZIHINTNTL: > case KVM_RISCV_ISA_EXT_ZIHINTPAUSE: > case KVM_RISCV_ISA_EXT_ZIHPM: > + case KVM_RISCV_ISA_EXT_ZIMOP: > case KVM_RISCV_ISA_EXT_ZKND: > case KVM_RISCV_ISA_EXT_ZKNE: > case KVM_RISCV_ISA_EXT_ZKNH: > -- > 2.43.0 >
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index b1c503c2959c..35a12aa1953e 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -167,6 +167,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZFA, KVM_RISCV_ISA_EXT_ZTSO, KVM_RISCV_ISA_EXT_ZACAS, + KVM_RISCV_ISA_EXT_ZIMOP, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index f4a6124d25c9..c6ee763422f2 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -60,6 +60,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(ZIHINTNTL), KVM_ISA_EXT_ARR(ZIHINTPAUSE), KVM_ISA_EXT_ARR(ZIHPM), + KVM_ISA_EXT_ARR(ZIMOP), KVM_ISA_EXT_ARR(ZKND), KVM_ISA_EXT_ARR(ZKNE), KVM_ISA_EXT_ARR(ZKNH), @@ -137,6 +138,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_ZIHINTNTL: case KVM_RISCV_ISA_EXT_ZIHINTPAUSE: case KVM_RISCV_ISA_EXT_ZIHPM: + case KVM_RISCV_ISA_EXT_ZIMOP: case KVM_RISCV_ISA_EXT_ZKND: case KVM_RISCV_ISA_EXT_ZKNE: case KVM_RISCV_ISA_EXT_ZKNH:
Extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zimop extension for Guest/VM. Signed-off-by: Clément Léger <cleger@rivosinc.com> --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu_onereg.c | 2 ++ 2 files changed, 3 insertions(+)