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KVM: x86 emulator: implement rdmsr and wrmsr

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Allow real-mode emulation of rdmsr and wrmsr.  This allows smp Windows to
boot, presumably for its sipi trampoline.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity
2007-07-17 14:20:30 +03:00
parent 90cb0529dd
commit 35f3f28613
3 changed files with 31 additions and 5 deletions
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8
drivers/kvm/kvm_main.c
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@ -1517,7 +1517,7 @@ EXPORT_SYMBOL_GPL(kvm_get_msr_common);
* Returns 0 on success, non-0 otherwise.
* Assumes vcpu_load() was already called.
*/
static int get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
{
return kvm_arch_ops->get_msr(vcpu, msr_index, pdata);
}
@ -1595,7 +1595,7 @@ EXPORT_SYMBOL_GPL(kvm_set_msr_common);
* Returns 0 on success, non-0 otherwise.
* Assumes vcpu_load() was already called.
*/
static int set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
{
return kvm_arch_ops->set_msr(vcpu, msr_index, data);
}
@ -2133,7 +2133,7 @@ static __init void kvm_init_msr_list(void)
*/
static int do_set_msr(struct kvm_vcpu *vcpu, unsigned index, u64 *data)
{
return set_msr(vcpu, index, *data);
return kvm_set_msr(vcpu, index, *data);
}
/*
@ -2617,7 +2617,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
break;
}
case KVM_GET_MSRS:
r = msr_io(vcpu, argp, get_msr, 1);
r = msr_io(vcpu, argp, kvm_get_msr, 1);
break;
case KVM_SET_MSRS:
r = msr_io(vcpu, argp, do_set_msr, 0);