unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
-int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr);
+int kvm_emulate_xsetbv(struct kvm_vcpu *vcpu);
int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
return kvm_emulate_wbinvd(vcpu);
}
-static int xsetbv_interception(struct kvm_vcpu *vcpu)
-{
- u64 new_bv = kvm_read_edx_eax(vcpu);
- u32 index = kvm_rcx_read(vcpu);
-
- int err = kvm_set_xcr(vcpu, index, new_bv);
- return kvm_complete_insn_gp(vcpu, err);
-}
-
static int rdpru_interception(struct kvm_vcpu *vcpu)
{
kvm_queue_exception(vcpu, UD_VECTOR);
[SVM_EXIT_WBINVD] = wbinvd_interception,
[SVM_EXIT_MONITOR] = monitor_interception,
[SVM_EXIT_MWAIT] = mwait_interception,
- [SVM_EXIT_XSETBV] = xsetbv_interception,
+ [SVM_EXIT_XSETBV] = kvm_emulate_xsetbv,
[SVM_EXIT_RDPRU] = rdpru_interception,
[SVM_EXIT_EFER_WRITE_TRAP] = efer_trap,
[SVM_EXIT_CR0_WRITE_TRAP] = cr_trap,
return kvm_emulate_wbinvd(vcpu);
}
-static int handle_xsetbv(struct kvm_vcpu *vcpu)
-{
- u64 new_bv = kvm_read_edx_eax(vcpu);
- u32 index = kvm_rcx_read(vcpu);
-
- int err = kvm_set_xcr(vcpu, index, new_bv);
- return kvm_complete_insn_gp(vcpu, err);
-}
-
static int handle_apic_access(struct kvm_vcpu *vcpu)
{
if (likely(fasteoi)) {
[EXIT_REASON_APIC_WRITE] = handle_apic_write,
[EXIT_REASON_EOI_INDUCED] = handle_apic_eoi_induced,
[EXIT_REASON_WBINVD] = handle_wbinvd,
- [EXIT_REASON_XSETBV] = handle_xsetbv,
+ [EXIT_REASON_XSETBV] = kvm_emulate_xsetbv,
[EXIT_REASON_TASK_SWITCH] = handle_task_switch,
[EXIT_REASON_MCE_DURING_VMENTRY] = handle_machine_check,
[EXIT_REASON_GDTR_IDTR] = handle_desc,
return 0;
}
-int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
+int kvm_emulate_xsetbv(struct kvm_vcpu *vcpu)
{
- if (static_call(kvm_x86_get_cpl)(vcpu) == 0)
- return __kvm_set_xcr(vcpu, index, xcr);
+ if (static_call(kvm_x86_get_cpl)(vcpu) != 0 ||
+ __kvm_set_xcr(vcpu, kvm_rcx_read(vcpu), kvm_read_edx_eax(vcpu))) {
+ kvm_inject_gp(vcpu, 0);
+ return 1;
+ }
- return 1;
+ return kvm_skip_emulated_instruction(vcpu);
}
-EXPORT_SYMBOL_GPL(kvm_set_xcr);
+EXPORT_SYMBOL_GPL(kvm_emulate_xsetbv);
bool kvm_is_valid_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
{