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KVM: Accelerated apic support

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This adds a mechanism for exposing the virtual apic tpr to the guest, and a
protocol for letting the guest update the tpr without causing a vmexit if
conditions allow (e.g. there is no interrupt pending with a higher priority
than the new tpr).

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2007-10-25 16:52:32 +02:00
parent b209749f52
commit b93463aa59
5 changed files with 120 additions and 1 deletions
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2
include/linux/kvm_para.h
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@ -12,6 +12,8 @@
/* Return values for hypercalls */
#define KVM_ENOSYS 1000
#define KVM_HC_VAPIC_POLL_IRQ 1
#ifdef __KERNEL__
/*
* hypercalls use architecture specific