x86/xen: Use X86_SUBARCH_XEN for PV guest boots

[karo-tx-linux.git] / arch / x86 / xen / enlighten.c

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 2379a5a88504e471d2f5b0f5180c39be930c8bb9..61f4d9f67f60f85317d009296e759ebcc3b9c91d 100644 (file)
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -962,7 +962,7 @@ static void xen_load_sp0(struct tss_struct *tss,
        tss->x86_tss.sp0 = thread->sp0;
 }
 
-static void xen_set_iopl_mask(unsigned mask)
+void xen_set_iopl_mask(unsigned mask)
 {
        struct physdev_set_iopl set_iopl;
 
@@ -1670,6 +1670,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
        boot_params.hdr.ramdisk_image = initrd_start;
        boot_params.hdr.ramdisk_size = xen_start_info->mod_len;
        boot_params.hdr.cmd_line_ptr = __pa(xen_start_info->cmd_line);
+       boot_params.hdr.hardware_subarch = X86_SUBARCH_XEN;
 
        if (!xen_initial_domain()) {
                add_preferred_console("xenboot", 0, NULL);