diff options
| author | Avi Kivity <avi@qumranet.com> | 2007-01-26 00:56:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-01-26 13:50:57 -0800 |
| commit | 6f00e68f210c0407dd666743ce61ae543cfd509d (patch) | |
| tree | 03abbd7c7c2dbda3316e4f2db61adc20a0366062 /drivers | |
| parent | bce66ca4a2f695509e1b021311eb4de1e4fdf3e4 (diff) | |
[PATCH] KVM: Emulate IA32_MISC_ENABLE msr
This allows netbsd 3.1 i386 to get further along installing.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/kvm/kvm.h | 1 | ||||
| -rw-r--r-- | drivers/kvm/kvm_main.c | 17 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h index 91e0c75aca8..2db1ca4c680 100644 --- a/drivers/kvm/kvm.h +++ b/drivers/kvm/kvm.h @@ -242,6 +242,7 @@ struct kvm_vcpu { u64 pdptrs[4]; /* pae */ u64 shadow_efer; u64 apic_base; + u64 ia32_misc_enable_msr; int nmsrs; struct vmx_msr_entry *guest_msrs; struct vmx_msr_entry *host_msrs; diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index be4651abe72..b10972ed0c9 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -1226,6 +1226,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_IA32_APICBASE: data = vcpu->apic_base; break; + case MSR_IA32_MISC_ENABLE: + data = vcpu->ia32_misc_enable_msr; + break; #ifdef CONFIG_X86_64 case MSR_EFER: data = vcpu->shadow_efer; @@ -1297,6 +1300,9 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) case MSR_IA32_APICBASE: vcpu->apic_base = data; break; + case MSR_IA32_MISC_ENABLE: + vcpu->ia32_misc_enable_msr = data; + break; default: printk(KERN_ERR "kvm: unhandled wrmsr: 0x%x\n", msr); return 1; @@ -1600,6 +1606,10 @@ static u32 msrs_to_save[] = { static unsigned num_msrs_to_save; +static u32 emulated_msrs[] = { + MSR_IA32_MISC_ENABLE, +}; + static __init void kvm_init_msr_list(void) { u32 dummy[2]; @@ -1925,7 +1935,7 @@ static long kvm_dev_ioctl(struct file *filp, if (copy_from_user(&msr_list, user_msr_list, sizeof msr_list)) goto out; n = msr_list.nmsrs; - msr_list.nmsrs = num_msrs_to_save; + msr_list.nmsrs = num_msrs_to_save + ARRAY_SIZE(emulated_msrs); if (copy_to_user(user_msr_list, &msr_list, sizeof msr_list)) goto out; r = -E2BIG; @@ -1935,6 +1945,11 @@ static long kvm_dev_ioctl(struct file *filp, if (copy_to_user(user_msr_list->indices, &msrs_to_save, num_msrs_to_save * sizeof(u32))) goto out; + if (copy_to_user(user_msr_list->indices + + num_msrs_to_save * sizeof(u32), + &emulated_msrs, + ARRAY_SIZE(emulated_msrs) * sizeof(u32))) + goto out; r = 0; break; } |