diff options
Diffstat (limited to 'arch/x86/xen/enlighten.c')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 1170d00879d5..2eca6187fc92 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1409,14 +1409,19 @@ static void __init xen_boot_params_init_edd(void) * Set up the GDT and segment registers for -fstack-protector. Until * we do this, we have to be careful not to call any stack-protected * function, which is most of the kernel. + * + * Note, that it is __ref because the only caller of this after init + * is PVH which is not going to use xen_load_gdt_boot or other + * __init functions. */ -static void __init xen_setup_gdt(void) +void __ref xen_setup_gdt(int cpu) { if (xen_feature(XENFEAT_auto_translated_physmap)) { #ifdef CONFIG_X86_64 unsigned long dummy; - switch_to_new_gdt(0); /* GDT and GS set */ + load_percpu_segment(cpu); /* We need to access per-cpu area */ + switch_to_new_gdt(cpu); /* GDT and GS set */ /* We are switching of the Xen provided GDT to our HVM mode * GDT. The new GDT has __KERNEL_CS with CS.L = 1 @@ -1529,7 +1534,7 @@ asmlinkage void __init xen_start_kernel(void) * Set up kernel GDT and segment registers, mainly so that * -fstack-protector code can be executed. */ - xen_setup_gdt(); + xen_setup_gdt(0); xen_init_irq_ops(); xen_init_cpuid_mask(); |