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| author | Quan Zhou <zhouquan@iscas.ac.cn> | 2024-12-02 06:21:49 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2024-12-30 11:31:02 +0300 |
| commit | 679e132c0ae2c34b425f32fb1a59fc04c6dc87cb (patch) | |
| tree | 87d84f01410b1782acb0fd86b0497d2b86f67a51 | |
| parent | 0f891585971648a07e8b0c155e5b3eb697601d9d (diff) | |
| download | linux-679e132c0ae2c34b425f32fb1a59fc04c6dc87cb.tar.xz | |
RISC-V: KVM: Allow Zabha extension for Guest/VM
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@iscas.ac.cn>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/4074feb27819e23bab05b0fd6441a38bf0b6a5e2.1732854096.git.zhouquan@iscas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
| -rw-r--r-- | arch/riscv/include/uapi/asm/kvm.h | 1 | ||||
| -rw-r--r-- | arch/riscv/kvm/vcpu_onereg.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index e789c20eadc9..c9a877611509 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -180,6 +180,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_SVADE, KVM_RISCV_ISA_EXT_SVADU, 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 b843ea236370..8ea8d5203c0d 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(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), @@ -147,6 +148,7 @@ 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: |