* [PATCH] xen: disable interrupts early, as start_kernel expects
@ 2009-02-25 17:42 Jeremy Fitzhardinge
0 siblings, 0 replies; only message in thread
From: Jeremy Fitzhardinge @ 2009-02-25 17:42 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linux Kernel Mailing List, Mark McLoughlin, Xen-devel,
Stable Kernel
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>
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 95ff6a0..905cc1c 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -939,6 +939,9 @@ 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);
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2009-02-25 17:42 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-02-25 17:42 [PATCH] xen: disable interrupts early, as start_kernel expects Jeremy Fitzhardinge
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox