| Message ID | 20211012043535.500493-25-reijiw@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: arm64: Make CPU ID registers writable by userspace | expand |
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 691cb6ee0f5c..41f785fdc2e6 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -743,6 +743,7 @@ long kvm_vm_ioctl_mte_copy_tags(struct kvm *kvm, struct kvm_arm_copy_mte_tags *copy_tags); int kvm_id_regs_consistency_check(const struct kvm_vcpu *vcpu); +void kvm_vcpu_id_regs_trap_activate(struct kvm_vcpu *vcpu); /* Guest/host FPSIMD coordination helpers */ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu); diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 38301ddf8372..6b392d7feab7 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -606,6 +606,8 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu) if (kvm_id_regs_consistency_check(vcpu)) return -EPERM; + kvm_vcpu_id_regs_trap_activate(vcpu); + return ret; }
Call kvm_vcpu_id_regs_trap_activate() at the first KVM_RUN to activate trapping of disabled CPU features. Signed-off-by: Reiji Watanabe <reijiw@google.com> --- arch/arm64/include/asm/kvm_host.h | 1 + arch/arm64/kvm/arm.c | 2 ++ 2 files changed, 3 insertions(+)