xen: disable interrupts early, as start_kernel expects
authorJeremy Fitzhardinge <jeremy@goop.org>
Wed, 25 Feb 2009 17:42:25 +0000 (09:42 -0800)
committerIngo Molnar <mingo@elte.hu>
Wed, 25 Feb 2009 17:51:57 +0000 (18:51 +0100)
This avoids a lockdep warning from:
if (DEBUG_LOCKS_WARN_ON(unlikely(!early_boot_irqs_enabled)))
return;
in trace_hardirqs_on_caller();

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: Xen-devel <xen-devel@lists.xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/xen/enlighten.c

index bea215230b20cdf4fc41ac5fd4e060dcbaec4ec1..b58e9633814923aa5e13cd2f491086830528db6a 100644 (file)
@@ -1672,6 +1672,9 @@ asmlinkage void __init xen_start_kernel(void)
           possible map and a non-dummy shared_info. */
        per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
 
+       local_irq_disable();
+       early_boot_irqs_off();
+
        xen_raw_console_write("mapping kernel into physical memory\n");
        pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages);