On Wed, Feb 14, 2024 at 06:07:56PM +0530, Anup Patel wrote:
We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zacas extension for Guest/VM.
Signed-off-by: Anup Patel apatel@ventanamicro.com
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 f8aa9f2ace95..37fb0f70b3e5 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_ZVFHMIN, KVM_RISCV_ISA_EXT_ZFA, KVM_RISCV_ISA_EXT_ZTSO,
- KVM_RISCV_ISA_EXT_ZACAS, KVM_RISCV_ISA_EXT_MAX,
}; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 38f5cf286087..f4a6124d25c9 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -40,6 +40,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(SVINVAL), KVM_ISA_EXT_ARR(SVNAPOT), KVM_ISA_EXT_ARR(SVPBMT),
- KVM_ISA_EXT_ARR(ZACAS), KVM_ISA_EXT_ARR(ZBA), KVM_ISA_EXT_ARR(ZBB), KVM_ISA_EXT_ARR(ZBC),
@@ -118,6 +119,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_SSTC: case KVM_RISCV_ISA_EXT_SVINVAL: case KVM_RISCV_ISA_EXT_SVNAPOT:
- case KVM_RISCV_ISA_EXT_ZACAS: case KVM_RISCV_ISA_EXT_ZBA: case KVM_RISCV_ISA_EXT_ZBB: case KVM_RISCV_ISA_EXT_ZBC:
-- 2.34.1
Reviewed-by: Andrew Jones ajones@ventanamicro.com