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| author | Yang Zhang <yang.z.zhang@Intel.com> | 2013-04-11 19:25:11 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2013-04-16 16:32:39 -0300 |
| commit | d78f2664832f8d70e36422af9a10e44276dced48 (patch) | |
| tree | 0868c6e8a770cd4a63d9ad3a58d6ddceeb2a6af5 /arch/x86/include/asm/hardirq.h | |
| parent | a547c6db4d2f16ba5ce8e7054bffad6acc248d40 (diff) | |
| download | linux-0-day-d78f2664832f8d70e36422af9a10e44276dced48.tar.gz linux-0-day-d78f2664832f8d70e36422af9a10e44276dced48.tar.xz | |
KVM: VMX: Register a new IPI for posted interrupt
Posted Interrupt feature requires a special IPI to deliver posted interrupt
to guest. And it should has a high priority so the interrupt will not be
blocked by others.
Normally, the posted interrupt will be consumed by vcpu if target vcpu is
running and transparent to OS. But in some cases, the interrupt will arrive
when target vcpu is scheduled out. And host will see it. So we need to
register a dump handler to handle it.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/hardirq.h')
| -rw-r--r-- | arch/x86/include/asm/hardirq.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h index 81f04cee5f741..ab0ae1aa6d0af 100644 --- a/arch/x86/include/asm/hardirq.h +++ b/arch/x86/include/asm/hardirq.h @@ -12,6 +12,9 @@ typedef struct { unsigned int irq_spurious_count; unsigned int icr_read_retry_count; #endif +#ifdef CONFIG_HAVE_KVM + unsigned int kvm_posted_intr_ipis; +#endif unsigned int x86_platform_ipis; /* arch dependent */ unsigned int apic_perf_irqs; unsigned int apic_irq_work_irqs; |