diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-05-09 23:24:09 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-05-09 23:24:09 +0100 |
commit | 1f2ee6496b1f71e9d5aa2448745e65fbafdc3bd5 (patch) | |
tree | 3f143311afca5e316afd06c2fc4f7d73b19cdcf0 /arch/x86/kvm/x86.c | |
parent | 5bf6c6e30d8b71d092e8830208e182d84b907fcd (diff) | |
parent | da109897a142dd017172c0ce7abf0be8646f7109 (diff) |
Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/nico/orion into fixes
Diffstat (limited to 'arch/x86/kvm/x86.c')
-rw-r--r-- | arch/x86/kvm/x86.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 0ce556372a4..21338bdb28f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2417,6 +2417,9 @@ int kvm_arch_init(void *opaque) kvm_x86_ops = ops; kvm_mmu_set_nonpresent_ptes(0ull, 0ull); + kvm_mmu_set_base_ptes(PT_PRESENT_MASK); + kvm_mmu_set_mask_ptes(PT_USER_MASK, PT_ACCESSED_MASK, + PT_DIRTY_MASK, PT64_NX_MASK, 0); return 0; out: @@ -3019,6 +3022,8 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) kvm_x86_ops->decache_regs(vcpu); + vcpu->arch.exception.pending = false; + vcpu_put(vcpu); return 0; @@ -3481,7 +3486,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason) } if (reason == TASK_SWITCH_IRET || reason == TASK_SWITCH_JMP) { - cseg_desc.type &= ~(1 << 8); //clear the B flag + cseg_desc.type &= ~(1 << 1); //clear the B flag save_guest_segment_descriptor(vcpu, tr_seg.selector, &cseg_desc); } @@ -3507,7 +3512,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason) } if (reason != TASK_SWITCH_IRET) { - nseg_desc.type |= (1 << 8); + nseg_desc.type |= (1 << 1); save_guest_segment_descriptor(vcpu, tss_selector, &nseg_desc); } @@ -3698,10 +3703,19 @@ void fx_init(struct kvm_vcpu *vcpu) { unsigned after_mxcsr_mask; + /* + * Touch the fpu the first time in non atomic context as if + * this is the first fpu instruction the exception handler + * will fire before the instruction returns and it'll have to + * allocate ram with GFP_KERNEL. + */ + if (!used_math()) + fx_save(&vcpu->arch.host_fx_image); + /* Initialize guest FPU by resetting ours and saving into guest's */ preempt_disable(); fx_save(&vcpu->arch.host_fx_image); - fpu_init(); + fx_finit(); fx_save(&vcpu->arch.guest_fx_image); fx_restore(&vcpu->arch.host_fx_image); preempt_enable(); @@ -3906,6 +3920,8 @@ void kvm_arch_destroy_vm(struct kvm *kvm) kvm_free_physmem(kvm); if (kvm->arch.apic_access_page) put_page(kvm->arch.apic_access_page); + if (kvm->arch.ept_identity_pagetable) + put_page(kvm->arch.ept_identity_pagetable); kfree(kvm); } |