diff options
| author | Anup Patel <[email protected]> | 2023-07-12 12:53:50 +0530 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2023-08-08 17:25:35 +0530 |
| commit | 043cba064ecd2c3ccaf575c15caf6dd829c64e7b (patch) | |
| tree | 23747304a947f47edbfa2dc00c37b281869f6387 | |
| parent | 41716861e4251b202809fc57deaed3881934e062 (diff) | |
RISC-V: KVM: Allow Zicntr, Zicsr, Zifencei, and Zihpm for Guest/VM
We extend the KVM ISA extension ONE_REG interface to allow KVM
user space to detect and enable Zicntr, Zicsr, Zifencei, and Zihpm
extensions for Guest/VM.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
| -rw-r--r-- | arch/riscv/include/uapi/asm/kvm.h | 4 | ||||
| -rw-r--r-- | arch/riscv/kvm/vcpu_onereg.c | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 68f929d88f43..9c35e1427f73 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -126,6 +126,10 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_SVNAPOT, KVM_RISCV_ISA_EXT_ZBA, KVM_RISCV_ISA_EXT_ZBS, + KVM_RISCV_ISA_EXT_ZICNTR, + KVM_RISCV_ISA_EXT_ZICSR, + KVM_RISCV_ISA_EXT_ZIFENCEI, + KVM_RISCV_ISA_EXT_ZIHPM, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 4389ae050d33..0f75b6b3ced1 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -41,7 +41,11 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(ZBA), KVM_ISA_EXT_ARR(ZBB), KVM_ISA_EXT_ARR(ZBS), + KVM_ISA_EXT_ARR(ZICNTR), + KVM_ISA_EXT_ARR(ZICSR), + KVM_ISA_EXT_ARR(ZIFENCEI), KVM_ISA_EXT_ARR(ZIHINTPAUSE), + KVM_ISA_EXT_ARR(ZIHPM), KVM_ISA_EXT_ARR(ZICBOM), KVM_ISA_EXT_ARR(ZICBOZ), }; @@ -83,7 +87,11 @@ 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_ZICNTR: + case KVM_RISCV_ISA_EXT_ZICSR: + case KVM_RISCV_ISA_EXT_ZIFENCEI: case KVM_RISCV_ISA_EXT_ZIHINTPAUSE: + case KVM_RISCV_ISA_EXT_ZIHPM: case KVM_RISCV_ISA_EXT_ZBA: case KVM_RISCV_ISA_EXT_ZBB: case KVM_RISCV_ISA_EXT_ZBS: |