| Message ID | 20240418124300.1387978-12-cleger@rivosinc.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for a few Zc* extensions as well as Zcmop | expand |
On Thu, Apr 18, 2024 at 6:14 PM Clément Léger <cleger@rivosinc.com> wrote: > > Extend the KVM ISA extension ONE_REG interface to allow KVM user space > to detect and enable Zcmop 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> Thanks, 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 57db3fea679f..0366389a0bae 100644 > --- a/arch/riscv/include/uapi/asm/kvm.h > +++ b/arch/riscv/include/uapi/asm/kvm.h > @@ -172,6 +172,7 @@ enum KVM_RISCV_ISA_EXT_ID { > KVM_RISCV_ISA_EXT_ZCB, > KVM_RISCV_ISA_EXT_ZCD, > KVM_RISCV_ISA_EXT_ZCF, > + KVM_RISCV_ISA_EXT_ZCMOP, > KVM_RISCV_ISA_EXT_MAX, > }; > > diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c > index a2747a6dbdb6..77a0d337faeb 100644 > --- a/arch/riscv/kvm/vcpu_onereg.c > +++ b/arch/riscv/kvm/vcpu_onereg.c > @@ -52,6 +52,7 @@ static const unsigned long kvm_isa_ext_arr[] = { > KVM_ISA_EXT_ARR(ZCB), > KVM_ISA_EXT_ARR(ZCD), > KVM_ISA_EXT_ARR(ZCF), > + KVM_ISA_EXT_ARR(ZCMOP), > KVM_ISA_EXT_ARR(ZFA), > KVM_ISA_EXT_ARR(ZFH), > KVM_ISA_EXT_ARR(ZFHMIN), > @@ -136,6 +137,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) > case KVM_RISCV_ISA_EXT_ZCB: > case KVM_RISCV_ISA_EXT_ZCD: > case KVM_RISCV_ISA_EXT_ZCF: > + case KVM_RISCV_ISA_EXT_ZCMOP: > case KVM_RISCV_ISA_EXT_ZFA: > case KVM_RISCV_ISA_EXT_ZFH: > case KVM_RISCV_ISA_EXT_ZFHMIN: > -- > 2.43.0 >
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 57db3fea679f..0366389a0bae 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -172,6 +172,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZCB, KVM_RISCV_ISA_EXT_ZCD, KVM_RISCV_ISA_EXT_ZCF, + KVM_RISCV_ISA_EXT_ZCMOP, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index a2747a6dbdb6..77a0d337faeb 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -52,6 +52,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(ZCB), KVM_ISA_EXT_ARR(ZCD), KVM_ISA_EXT_ARR(ZCF), + KVM_ISA_EXT_ARR(ZCMOP), KVM_ISA_EXT_ARR(ZFA), KVM_ISA_EXT_ARR(ZFH), KVM_ISA_EXT_ARR(ZFHMIN), @@ -136,6 +137,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_ZCB: case KVM_RISCV_ISA_EXT_ZCD: case KVM_RISCV_ISA_EXT_ZCF: + case KVM_RISCV_ISA_EXT_ZCMOP: case KVM_RISCV_ISA_EXT_ZFA: case KVM_RISCV_ISA_EXT_ZFH: case KVM_RISCV_ISA_EXT_ZFHMIN:
Extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zcmop 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(+)