Displaying 1 result from an estimated 1 matches for "cpu_user_r".
Did you mean:
cpu_user_
2012 Nov 14
0
[PATCH] x86/nmi: self_nmi() should not unconditionally enable interrupts
...e
code currently safe but dangerous. Also, fix a trailing whitespace issue.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
diff -r 8b93ac0c93f3 -r f3adcb7d84ea xen/arch/x86/nmi.c
--- a/xen/arch/x86/nmi.c
+++ b/xen/arch/x86/nmi.c
@@ -482,13 +482,14 @@ void nmi_watchdog_tick(struct cpu_user_r
* 8-3 and 8-4 in IA32 Reference Manual Volume 3. We send the IPI to
* our own APIC ID explicitly which is valid.
*/
-void self_nmi(void)
+void self_nmi(void)
{
+ unsigned long flags;
u32 id = get_apic_id();
- local_irq_disable();
+ local_irq_save(flags);
apic_wait_icr_idl...