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RISC-V: KVM: Allow Ztso 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 Ztso extension for Guest/VM.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel 2024-02-13 10:32:26 +05:30 committed by Anup Patel
parent d808f0b1be
commit f943ebe2ec
2 changed files with 3 additions and 0 deletions
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1
arch/riscv/include/uapi/asm/kvm.h
View file

@ -166,6 +166,7 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_ZVFH,
KVM_RISCV_ISA_EXT_ZVFHMIN,
KVM_RISCV_ISA_EXT_ZFA,
KVM_RISCV_ISA_EXT_ZTSO,
KVM_RISCV_ISA_EXT_MAX,
};

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

@ -66,6 +66,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZKSED),
KVM_ISA_EXT_ARR(ZKSH),
KVM_ISA_EXT_ARR(ZKT),
KVM_ISA_EXT_ARR(ZTSO),
KVM_ISA_EXT_ARR(ZVBB),
KVM_ISA_EXT_ARR(ZVBC),
KVM_ISA_EXT_ARR(ZVFH),
@ -141,6 +142,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_ZKSED:
case KVM_RISCV_ISA_EXT_ZKSH:
case KVM_RISCV_ISA_EXT_ZKT:
case KVM_RISCV_ISA_EXT_ZTSO:
case KVM_RISCV_ISA_EXT_ZVBB:
case KVM_RISCV_ISA_EXT_ZVBC:
case KVM_RISCV_ISA_EXT_ZVFH: