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

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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>
This commit is contained in:
Quan Zhou 2024-12-02 11:21:49 +08:00 committed by Anup Patel
parent 0f89158597
commit 679e132c0a
2 changed files with 3 additions and 0 deletions
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1
arch/riscv/include/uapi/asm/kvm.h
View File

@ -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,
};

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

@ -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: