[PATCH v5 10/12] x86/xen: Bypass intr mode setup in enlighten_pv system

[Dou Liyang]

xen_smp_ops overwrites smp_prepare_cpus to xen_pv_smp_prepare_cpus
which initializes interrupt itself.

Touching the intr_mode_init causes unexpected results on the system.

Bypass it in enlighten_pv system.

Signed-off-by: Dou Liyang <douly.f...@cn.fujitsu.com>
---
 arch/x86/xen/enlighten_pv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index f33eef4..d3362a3 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1268,6 +1268,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
        x86_platform.get_nmi_reason = xen_get_nmi_reason;
 
        x86_init.resources.memory_setup = xen_memory_setup;
+       x86_init.irqs.intr_mode_init    = x86_init_noop;
        x86_init.oem.arch_setup = xen_arch_setup;
        x86_init.oem.banner = xen_banner;
 
-- 
2.5.5