riscv: kvm: Add V extension to KVM ISA

Add V extension to KVM isa extension list to enable supporting of V
extension on VCPUs.

Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Andy Chiu <andy.chiu@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Acked-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Link: https://lore.kernel.org/r/20230605110724.21391-19-andy.chiu@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index f92790c..8feb57c 100644 (file)
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -121,6 +121,7 @@ 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_ZICBOZ,
        KVM_RISCV_ISA_EXT_ZBB,
        KVM_RISCV_ISA_EXT_SSAIA,

+       KVM_RISCV_ISA_EXT_V,

        KVM_RISCV_ISA_EXT_MAX,
 };
 
        KVM_RISCV_ISA_EXT_MAX,
 };
 

diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
index 8bd9f2a..f3282ff 100644 (file)
--- a/arch/riscv/kvm/vcpu.c
+++ b/arch/riscv/kvm/vcpu.c
@@ -57,6 +57,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
        [KVM_RISCV_ISA_EXT_H] = RISCV_ISA_EXT_h,
        [KVM_RISCV_ISA_EXT_I] = RISCV_ISA_EXT_i,
        [KVM_RISCV_ISA_EXT_M] = RISCV_ISA_EXT_m,
        [KVM_RISCV_ISA_EXT_H] = RISCV_ISA_EXT_h,
        [KVM_RISCV_ISA_EXT_I] = RISCV_ISA_EXT_i,
        [KVM_RISCV_ISA_EXT_M] = RISCV_ISA_EXT_m,

+       [KVM_RISCV_ISA_EXT_V] = RISCV_ISA_EXT_v,

 
        KVM_ISA_EXT_ARR(SSAIA),
        KVM_ISA_EXT_ARR(SSTC),
 
        KVM_ISA_EXT_ARR(SSAIA),
        KVM_ISA_EXT_ARR(SSTC),