diff options
| 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/entry_arch.h | |
| parent | a547c6db4d2f16ba5ce8e7054bffad6acc248d40 (diff) | |
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/entry_arch.h')
| -rw-r--r-- | arch/x86/include/asm/entry_arch.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h index 40afa0005c69..9bd4ecac72be 100644 --- a/arch/x86/include/asm/entry_arch.h +++ b/arch/x86/include/asm/entry_arch.h @@ -19,6 +19,10 @@ BUILD_INTERRUPT(reboot_interrupt,REBOOT_VECTOR) BUILD_INTERRUPT(x86_platform_ipi, X86_PLATFORM_IPI_VECTOR) +#ifdef CONFIG_HAVE_KVM +BUILD_INTERRUPT(kvm_posted_intr_ipi, POSTED_INTR_VECTOR) +#endif + /* * every pentium local APIC has two 'local interrupts', with a * soft-definable vector attached to both interrupts, one of |