x86: irq: Define a global vector for nested posted interrupts
authorWincy Van <fanwenyi0529@gmail.com>
Fri, 28 Apr 2017 05:13:58 +0000 (13:13 +0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Wed, 26 Jul 2017 16:57:45 +0000 (18:57 +0200)
commit210f84b0ca7743f3b2a9acfae81df668dbbb6a12
treecbdb0e68d0a15c84d792bce7b1cc2ca6ba2fd50c
parenta512177ef3bb92dbec8a96fe337b11c126bf9c91
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>
arch/x86/entry/entry_64.S
arch/x86/include/asm/entry_arch.h
arch/x86/include/asm/hardirq.h
arch/x86/include/asm/hw_irq.h
arch/x86/include/asm/irq_vectors.h
arch/x86/kernel/irq.c
arch/x86/kernel/irqinit.c