diff mbox series

[2/5] RISC-V: KVM: Allow Ztso extension for Guest/VM

Message ID 20240214123757.305347-3-apatel@ventanamicro.com (mailing list archive)
State Handled Elsewhere
Headers show
Series KVM RISC-V report few more ISA extensions through ONE_REG | expand

Checks

Context Check Description
conchuod/vmtest-fixes-PR fail merge-conflict

Commit Message

Anup Patel Feb. 14, 2024, 12:37 p.m. UTC
We extend the KVM ISA extension ONE_REG interface to allow KVM
user space to detect and enable Ztso 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(+)

Comments

Andrew Jones Feb. 28, 2024, 1:05 p.m. UTC | #1
On Wed, Feb 14, 2024 at 06:07:54PM +0530, Anup Patel wrote:
> We extend the KVM ISA extension ONE_REG interface to allow KVM
> user space to detect and enable Ztso 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 7499e88a947c..f8aa9f2ace95 100644
> --- a/arch/riscv/include/uapi/asm/kvm.h
> +++ b/arch/riscv/include/uapi/asm/kvm.h
> @@ -166,6 +166,7 @@ enum KVM_RISCV_ISA_EXT_ID {
>  	KVM_RISCV_ISA_EXT_ZVFH,
>  	KVM_RISCV_ISA_EXT_ZVFHMIN,
>  	KVM_RISCV_ISA_EXT_ZFA,
> +	KVM_RISCV_ISA_EXT_ZTSO,
>  	KVM_RISCV_ISA_EXT_MAX,
>  };
>  
> diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
> index 5f7355e96008..38f5cf286087 100644
> --- a/arch/riscv/kvm/vcpu_onereg.c
> +++ b/arch/riscv/kvm/vcpu_onereg.c
> @@ -66,6 +66,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
>  	KVM_ISA_EXT_ARR(ZKSED),
>  	KVM_ISA_EXT_ARR(ZKSH),
>  	KVM_ISA_EXT_ARR(ZKT),
> +	KVM_ISA_EXT_ARR(ZTSO),
>  	KVM_ISA_EXT_ARR(ZVBB),
>  	KVM_ISA_EXT_ARR(ZVBC),
>  	KVM_ISA_EXT_ARR(ZVFH),
> @@ -141,6 +142,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
>  	case KVM_RISCV_ISA_EXT_ZKSED:
>  	case KVM_RISCV_ISA_EXT_ZKSH:
>  	case KVM_RISCV_ISA_EXT_ZKT:
> +	case KVM_RISCV_ISA_EXT_ZTSO:
>  	case KVM_RISCV_ISA_EXT_ZVBB:
>  	case KVM_RISCV_ISA_EXT_ZVBC:
>  	case KVM_RISCV_ISA_EXT_ZVFH:
> -- 
> 2.34.1
>

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
diff mbox series

Patch

diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 7499e88a947c..f8aa9f2ace95 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -166,6 +166,7 @@  enum KVM_RISCV_ISA_EXT_ID {
 	KVM_RISCV_ISA_EXT_ZVFH,
 	KVM_RISCV_ISA_EXT_ZVFHMIN,
 	KVM_RISCV_ISA_EXT_ZFA,
+	KVM_RISCV_ISA_EXT_ZTSO,
 	KVM_RISCV_ISA_EXT_MAX,
 };
 
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
index 5f7355e96008..38f5cf286087 100644
--- a/arch/riscv/kvm/vcpu_onereg.c
+++ b/arch/riscv/kvm/vcpu_onereg.c
@@ -66,6 +66,7 @@  static const unsigned long kvm_isa_ext_arr[] = {
 	KVM_ISA_EXT_ARR(ZKSED),
 	KVM_ISA_EXT_ARR(ZKSH),
 	KVM_ISA_EXT_ARR(ZKT),
+	KVM_ISA_EXT_ARR(ZTSO),
 	KVM_ISA_EXT_ARR(ZVBB),
 	KVM_ISA_EXT_ARR(ZVBC),
 	KVM_ISA_EXT_ARR(ZVFH),
@@ -141,6 +142,7 @@  static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
 	case KVM_RISCV_ISA_EXT_ZKSED:
 	case KVM_RISCV_ISA_EXT_ZKSH:
 	case KVM_RISCV_ISA_EXT_ZKT:
+	case KVM_RISCV_ISA_EXT_ZTSO:
 	case KVM_RISCV_ISA_EXT_ZVBB:
 	case KVM_RISCV_ISA_EXT_ZVBC:
 	case KVM_RISCV_ISA_EXT_ZVFH: