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| author | Anthony Liguori <aliguori@us.ibm.com> | 2007-04-27 09:29:21 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-05-03 10:52:31 +0300 |
| commit | 25c4c2762e31a75403eca0dd59f2cab85e3a2532 (patch) | |
| tree | 151c4a309da81608bdf729d701dcbfc3d4e1e9d7 /drivers/kvm/kvm_main.c | |
| parent | e0e5127d06957e76da3906b7a58d5d2665e81f59 (diff) | |
| download | lwn-25c4c2762e31a75403eca0dd59f2cab85e3a2532.tar.gz lwn-25c4c2762e31a75403eca0dd59f2cab85e3a2532.zip | |
KVM: VMX: Properly shadow the CR0 register in the vcpu struct
Set all of the host mask bits for CR0 so that we can maintain a proper
shadow of CR0. This exposes CR0.TS, paving the way for lazy fpu handling.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/kvm_main.c')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 67554034d001..cdf0b176851d 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -510,7 +510,6 @@ EXPORT_SYMBOL_GPL(set_cr0); void lmsw(struct kvm_vcpu *vcpu, unsigned long msw) { - kvm_arch_ops->decache_cr0_cr4_guest_bits(vcpu); set_cr0(vcpu, (vcpu->cr0 & ~0x0ful) | (msw & 0x0f)); } EXPORT_SYMBOL_GPL(lmsw); @@ -1117,7 +1116,6 @@ int emulate_clts(struct kvm_vcpu *vcpu) { unsigned long cr0; - kvm_arch_ops->decache_cr0_cr4_guest_bits(vcpu); cr0 = vcpu->cr0 & ~CR0_TS_MASK; kvm_arch_ops->set_cr0(vcpu, cr0); return X86EMUL_CONTINUE; @@ -1318,7 +1316,7 @@ void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr) { - kvm_arch_ops->decache_cr0_cr4_guest_bits(vcpu); + kvm_arch_ops->decache_cr4_guest_bits(vcpu); switch (cr) { case 0: return vcpu->cr0; @@ -1934,7 +1932,7 @@ static int kvm_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, sregs->gdt.limit = dt.limit; sregs->gdt.base = dt.base; - kvm_arch_ops->decache_cr0_cr4_guest_bits(vcpu); + kvm_arch_ops->decache_cr4_guest_bits(vcpu); sregs->cr0 = vcpu->cr0; sregs->cr2 = vcpu->cr2; sregs->cr3 = vcpu->cr3; @@ -1985,7 +1983,7 @@ static int kvm_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, #endif vcpu->apic_base = sregs->apic_base; - kvm_arch_ops->decache_cr0_cr4_guest_bits(vcpu); + kvm_arch_ops->decache_cr4_guest_bits(vcpu); mmu_reset_needed |= vcpu->cr0 != sregs->cr0; kvm_arch_ops->set_cr0(vcpu, sregs->cr0); |