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| author | Sheng Yang <sheng.yang@intel.com> | 2008-01-28 05:10:22 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-04-27 12:00:21 +0300 |
| commit | 7837699fa6d7adf81f26ab73a5f6897ea1ab9d6a (patch) | |
| tree | 37a89d5c10869a9ada59df75b49d685708661434 /arch/x86/kvm/irq.c | |
| parent | 4fcaa98267efc4d39ded9b0bc33c6b4a2f62fecd (diff) | |
| download | linux-7837699fa6d7adf81f26ab73a5f6897ea1ab9d6a.tar.gz | |
KVM: In kernel PIT model
The patch moves the PIT model from userspace to kernel, and increases the timer accuracy greatly. [marcelo: make last_injected_time per-guest] Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Tested-and-Acked-by: Alex Davis <alex14641@yahoo.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86/kvm/irq.c')
| -rw-r--r-- | arch/x86/kvm/irq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c index e5714759e97f..dbfe21c99c48 100644 --- a/arch/x86/kvm/irq.c +++ b/arch/x86/kvm/irq.c @@ -23,6 +23,7 @@ #include <linux/kvm_host.h> #include "irq.h" +#include "i8254.h" /* * check if there is pending interrupt without @@ -66,6 +67,7 @@ EXPORT_SYMBOL_GPL(kvm_cpu_get_interrupt); void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu) { kvm_inject_apic_timer_irqs(vcpu); + kvm_inject_pit_timer_irqs(vcpu); /* TODO: PIT, RTC etc. */ } EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs); @@ -73,6 +75,7 @@ EXPORT_SYMBOL_GPL(kvm_inject_pending_timer_irqs); void kvm_timer_intr_post(struct kvm_vcpu *vcpu, int vec) { kvm_apic_timer_intr_post(vcpu, vec); + kvm_pit_timer_intr_post(vcpu, vec); /* TODO: PIT, RTC etc. */ } EXPORT_SYMBOL_GPL(kvm_timer_intr_post); |