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RISC-V: KVM: Allow Svvptc extension for Guest/VM 

Extend the KVM ISA extension ONE_REG interface to allow KVM user space
to detect and enable Svvptc 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/133509ffe5783b62cf95e8f675cc3e327bee402e.1732854096.git.zhouquan@iscas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Quan Zhou 2024-12-02 11:21:38 +08:00 committed by Anup Patel
parent cc57f6cbef
commit 0f89158597
2 changed files with 3 additions and 0 deletions
arch/riscv
include/uapi/asm
kvm.h
kvm
vcpu_onereg.c

1
arch/riscv/include/uapi/asm/kvm.h
View File

@ -179,6 +179,7 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_SSNPM,
KVM_RISCV_ISA_EXT_SVADE,
KVM_RISCV_ISA_EXT_SVADU,
KVM_RISCV_ISA_EXT_SVVPTC,
KVM_RISCV_ISA_EXT_MAX,
};

2
arch/riscv/kvm/vcpu_onereg.c
View File

@ -46,6 +46,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(SVINVAL),
KVM_ISA_EXT_ARR(SVNAPOT),
KVM_ISA_EXT_ARR(SVPBMT),
KVM_ISA_EXT_ARR(SVVPTC),
KVM_ISA_EXT_ARR(ZACAS),
KVM_ISA_EXT_ARR(ZAWRS),
KVM_ISA_EXT_ARR(ZBA),
@ -145,6 +146,7 @@ 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_SVVPTC:
case KVM_RISCV_ISA_EXT_ZACAS:
case KVM_RISCV_ISA_EXT_ZAWRS:
case KVM_RISCV_ISA_EXT_ZBA: