From: Anup Patel Date: Mon, 12 Jun 2023 11:10:44 +0000 (+0530) Subject: RISC-V: KVM: Allow Svnapot extension for Guest/VM X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d75b336225789fb967442feb6cdf9cfc0357b252;p=users%2Fhch%2Fuuid.git RISC-V: KVM: Allow Svnapot extension for Guest/VM We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Svnapot extension for Guest/VM. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones Signed-off-by: Anup Patel --- diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 61d7fecc4899..a1ca18408bbd 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -122,6 +122,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZICBOZ, KVM_RISCV_ISA_EXT_ZBB, KVM_RISCV_ISA_EXT_SSAIA, + KVM_RISCV_ISA_EXT_SVNAPOT, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index 2db62c6c0d3e..7b355900f235 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -61,6 +61,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(SSAIA), KVM_ISA_EXT_ARR(SSTC), KVM_ISA_EXT_ARR(SVINVAL), + KVM_ISA_EXT_ARR(SVNAPOT), KVM_ISA_EXT_ARR(SVPBMT), KVM_ISA_EXT_ARR(ZBB), KVM_ISA_EXT_ARR(ZIHINTPAUSE), @@ -102,6 +103,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_SSAIA: case KVM_RISCV_ISA_EXT_SSTC: case KVM_RISCV_ISA_EXT_SVINVAL: + case KVM_RISCV_ISA_EXT_SVNAPOT: case KVM_RISCV_ISA_EXT_ZIHINTPAUSE: case KVM_RISCV_ISA_EXT_ZBB: return false;