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| author | Wincy Van <fanwenyi0529@gmail.com> | 2017-04-28 13:13:58 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-07-26 18:57:45 +0200 |
| commit | 210f84b0ca7743f3b2a9acfae81df668dbbb6a12 (patch) | |
| tree | cbdb0e68d0a15c84d792bce7b1cc2ca6ba2fd50c /arch/x86/include/asm/hardirq.h | |
| parent | a512177ef3bb92dbec8a96fe337b11c126bf9c91 (diff) | |
| download | linux-0-day-210f84b0ca7743f3b2a9acfae81df668dbbb6a12.tar.gz linux-0-day-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.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h index 9b76cd3319901..ad1ed531febcb 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; |