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RISC-V: KVM: Allow Ziccrse 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 Ziccrse 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/d10e746d165074174f830aa3d89bf3c92017acee.1732854096.git.zhouquan@iscas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Quan Zhou 2024-12-02 11:22:01 +08:00 committed by Anup Patel
parent 679e132c0a
commit 79be257b57
2 changed files with 3 additions and 0 deletions
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1
arch/riscv/include/uapi/asm/kvm.h
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@ -181,6 +181,7 @@ enum KVM_RISCV_ISA_EXT_ID {
KVM_RISCV_ISA_EXT_SVADU,
KVM_RISCV_ISA_EXT_SVVPTC,
KVM_RISCV_ISA_EXT_ZABHA,
KVM_RISCV_ISA_EXT_ZICCRSE,
KVM_RISCV_ISA_EXT_MAX,
};

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

@ -67,6 +67,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
KVM_ISA_EXT_ARR(ZFHMIN),
KVM_ISA_EXT_ARR(ZICBOM),
KVM_ISA_EXT_ARR(ZICBOZ),
KVM_ISA_EXT_ARR(ZICCRSE),
KVM_ISA_EXT_ARR(ZICNTR),
KVM_ISA_EXT_ARR(ZICOND),
KVM_ISA_EXT_ARR(ZICSR),
@ -166,6 +167,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
case KVM_RISCV_ISA_EXT_ZFA:
case KVM_RISCV_ISA_EXT_ZFH:
case KVM_RISCV_ISA_EXT_ZFHMIN:
case KVM_RISCV_ISA_EXT_ZICCRSE:
case KVM_RISCV_ISA_EXT_ZICNTR:
case KVM_RISCV_ISA_EXT_ZICOND:
case KVM_RISCV_ISA_EXT_ZICSR: