From 5054daa285beaf706f051fbd395dc36c9f0f907f Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Mon, 23 Feb 2015 11:01:00 -0500 Subject: [PATCH] x86/xen: Initialize cr4 shadow for 64-bit PV(H) guests Commit 1e02ce4cccdc ("x86: Store a per-cpu shadow copy of CR4") introduced CR4 shadows. These shadows are initialized in early boot code. The commit missed initialization for 64-bit PV(H) guests that this patch adds. Signed-off-by: Boris Ostrovsky Signed-off-by: David Vrabel --- arch/x86/xen/enlighten.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index efee14db009b..5240f563076d 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1758,6 +1758,7 @@ asmlinkage __visible void __init xen_start_kernel(void) #ifdef CONFIG_X86_32 i386_start_kernel(); #else + cr4_init_shadow(); /* 32b kernel does this in i386_start_kernel() */ x86_64_start_reservations((char *)__pa_symbol(&boot_params)); #endif } -- 2.20.1