lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: pending irq save/restore

Browse Source 
Add in kernel irqchip save/restore support for pending vectors.

[avi: fix compile warning on i386]
[avi: remove printk]

Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Eddie Dong
2007-08-06 16:29:07 +03:00
committed by Avi Kivity
parent 96ad2cc613
commit 2a8067f17b
4 changed files with 54 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/kvm/svm.c
View File

@ -843,6 +843,16 @@ static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_debug_guest *dbg)
return -EOPNOTSUPP;
}
static int svm_get_irq(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
u32 exit_int_info = svm->vmcb->control.exit_int_info;
if (is_external_interrupt(exit_int_info))
return exit_int_info & SVM_EVTINJ_VEC_MASK;
return -1;
}
static void load_host_msrs(struct kvm_vcpu *vcpu)
{
#ifdef CONFIG_X86_64
@ -1310,6 +1320,13 @@ static inline void svm_inject_irq(struct vcpu_svm *svm, int irq)
((/*control->int_vector >> 4*/ 0xf) << V_INTR_PRIO_SHIFT);
}
static void svm_set_irq(struct kvm_vcpu *vcpu, int irq)
{
struct vcpu_svm *svm = to_svm(vcpu);
svm_inject_irq(svm, irq);
}
static void svm_intr_assist(struct vcpu_svm *svm)
{
struct vmcb *vmcb = svm->vmcb;
@ -1783,6 +1800,8 @@ static struct kvm_arch_ops svm_arch_ops = {
.run = svm_vcpu_run,
.skip_emulated_instruction = skip_emulated_instruction,
.patch_hypercall = svm_patch_hypercall,
.get_irq = svm_get_irq,
.set_irq = svm_set_irq,
};
static int __init svm_init(void)