| Message ID | 20231128145357.413321-15-apatel@ventanamicro.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Headers | show |
| Series | KVM RISC-V report more ISA extensions through ONE_REG | expand |
On Tue, Nov 28, 2023 at 08:23:56PM +0530, Anup Patel wrote: > We extend the KVM ISA extension ONE_REG interface to allow KVM > user space to detect and enable Zfa 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(+) > Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 32c7ff23ecce..909bd98220ee 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -165,6 +165,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZIHINTNTL, KVM_RISCV_ISA_EXT_ZVFH, KVM_RISCV_ISA_EXT_ZVFHMIN, + KVM_RISCV_ISA_EXT_ZFA, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 6b2d81c8cfe7..ba18587ae8c7 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -47,6 +47,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(ZBKC), KVM_ISA_EXT_ARR(ZBKX), KVM_ISA_EXT_ARR(ZBS), + KVM_ISA_EXT_ARR(ZFA), KVM_ISA_EXT_ARR(ZFH), KVM_ISA_EXT_ARR(ZFHMIN), KVM_ISA_EXT_ARR(ZICBOM), @@ -123,6 +124,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_ZBKC: case KVM_RISCV_ISA_EXT_ZBKX: case KVM_RISCV_ISA_EXT_ZBS: + case KVM_RISCV_ISA_EXT_ZFA: case KVM_RISCV_ISA_EXT_ZFH: case KVM_RISCV_ISA_EXT_ZFHMIN: case KVM_RISCV_ISA_EXT_ZICNTR:
We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zfa 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(+)