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| author | Avi Kivity <avi@qumranet.com> | 2007-09-10 18:27:03 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-10-13 12:18:27 +0400 |
| commit | 29bd8a78082f2d7e2165a735f50b5c716ef3213b (patch) | |
| tree | df91de19568c8c882c2306466484db098f14d9d9 /drivers/kvm | |
| parent | 2e3e5882dca3ab409aa8c9c96f47610b576719f8 (diff) | |
| download | linux-29bd8a78082f2d7e2165a735f50b5c716ef3213b.tar.xz | |
KVM: VMX: Move vm entry failure handling to the exit handler
This will help moving the main loop to subarch independent code.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm')
| -rw-r--r-- | drivers/kvm/vmx.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index 57a6055ffb0b..713f78a89595 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -43,6 +43,7 @@ struct vmcs { struct vcpu_vmx { struct kvm_vcpu vcpu; int launched; + u8 fail; struct kvm_msr_entry *guest_msrs; struct kvm_msr_entry *host_msrs; int nmsrs; @@ -2099,6 +2100,14 @@ static int kvm_handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) { u32 vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD); u32 exit_reason = vmcs_read32(VM_EXIT_REASON); + struct vcpu_vmx *vmx = to_vmx(vcpu); + + if (unlikely(vmx->fail)) { + kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY; + kvm_run->fail_entry.hardware_entry_failure_reason + = vmcs_read32(VM_INSTRUCTION_ERROR); + return 0; + } if ( (vectoring_info & VECTORING_INFO_VALID_MASK) && exit_reason != EXIT_REASON_EXCEPTION_NMI ) @@ -2208,7 +2217,6 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu) static int vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) { struct vcpu_vmx *vmx = to_vmx(vcpu); - u8 fail; int r; if (unlikely(vcpu->mp_state == VCPU_MP_STATE_SIPI_RECEIVED)) { @@ -2352,7 +2360,7 @@ again: "pop %%ecx; popa \n\t" #endif "setbe %0 \n\t" - : "=q" (fail) + : "=q" (vmx->fail) : "r"(vmx->launched), "d"((unsigned long)HOST_RSP), "c"(vcpu), [rax]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RAX])), @@ -2387,13 +2395,6 @@ again: preempt_enable(); - if (unlikely(fail)) { - kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY; - kvm_run->fail_entry.hardware_entry_failure_reason - = vmcs_read32(VM_INSTRUCTION_ERROR); - r = 0; - goto out; - } /* * Profile KVM exit RIPs: */ |