From: Quan Zhou <zhouquan@xxxxxxxxxxx>
Extend the KVM ISA extension ONE_REG interface to allow KVM user space
to detect and enable Zabha extension for Guest/VM.
Signed-off-by: Quan Zhou <zhouquan@xxxxxxxxxxx>
Reviewed-by: Andrew Jones <ajones@xxxxxxxxxxxxxxxx>
---
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 9db33f52f56e..340618131249 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -178,6 +178,7 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_SMNPM,
KVM_RISCV_ISA_EXT_SSNPM,
KVM_RISCV_ISA_EXT_SVVPTC,
+ KVM_RISCV_ISA_EXT_ZABHA,
KVM_RISCV_ISA_EXT_MAX,
};
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index a87609c731f0..25d9e4c29cec 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -44,6 +44,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(SVNAPOT),
KVM_ISA_EXT_ARR(SVPBMT),
KVM_ISA_EXT_ARR(SVVPTC),
+ KVM_ISA_EXT_ARR(ZABHA),
KVM_ISA_EXT_ARR(ZACAS),
KVM_ISA_EXT_ARR(ZAWRS),
KVM_ISA_EXT_ARR(ZBA),
@@ -138,6 +139,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_SVINVAL:
case KVM_RISCV_ISA_EXT_SVNAPOT:
case KVM_RISCV_ISA_EXT_SVVPTC:
+ case KVM_RISCV_ISA_EXT_ZABHA:
case KVM_RISCV_ISA_EXT_ZACAS:
case KVM_RISCV_ISA_EXT_ZAWRS:
case KVM_RISCV_ISA_EXT_ZBA:
--
2.34.1
