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authorWincy Van <fanwenyi0529@gmail.com>2017-04-28 08:13:58 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2017-07-26 19:57:45 +0300
commit210f84b0ca7743f3b2a9acfae81df668dbbb6a12 (patch)
treecbdb0e68d0a15c84d792bce7b1cc2ca6ba2fd50c /arch/x86/include/asm/hardirq.h
parenta512177ef3bb92dbec8a96fe337b11c126bf9c91 (diff)
downloadlinux-210f84b0ca7743f3b2a9acfae81df668dbbb6a12.tar.xz
x86: irq: Define a global vector for nested posted interrupts
We are using the same vector for nested/non-nested posted interrupts delivery, this may cause interrupts latency in L1 since we can't kick the L2 vcpu out of vmx-nonroot mode. This patch introduces a new vector which is only for nested posted interrupts to solve the problems above. Signed-off-by: Wincy Van <fanwenyi0529@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/hardirq.h')
-rw-r--r--arch/x86/include/asm/hardirq.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index 9b76cd331990..ad1ed531febc 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/arch/x86/include/asm/hardirq.h
@@ -15,6 +15,7 @@ typedef struct {
#ifdef CONFIG_HAVE_KVM
unsigned int kvm_posted_intr_ipis;
unsigned int kvm_posted_intr_wakeup_ipis;
+ unsigned int kvm_posted_intr_nested_ipis;
#endif
unsigned int x86_platform_ipis; /* arch dependent */
unsigned int apic_perf_irqs;