[Xen-changelog] [xen-unstable] x86: fix i8259A_resume()

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Jan Beulich <jbeulich@xxxxxxxx>
# Date 1337066282 -7200
# Node ID f96ab219ef7b2520f716ff15ece6d4119f9cb33b
# Parent  f8279258e3c96baccb8338a47af068bd650b121a
x86: fix i8259A_resume()

On systems that have an IO-APIC, we generally run the PIC in AEOI
mode, yet i8259A_resume() so far failed to put it back into that mode.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Keir Fraser <keir@xxxxxxx>
---


diff -r f8279258e3c9 -r f96ab219ef7b xen/arch/x86/i8259.c
--- a/xen/arch/x86/i8259.c      Mon May 14 17:15:36 2012 +0100
+++ b/xen/arch/x86/i8259.c      Tue May 15 09:18:02 2012 +0200
@@ -314,7 +314,7 @@ static void save_ELCR(char *trigger)
 
 int i8259A_resume(void)
 {
-    init_8259A(0);
+    init_8259A(i8259A_irq_type.ack == disable_8259A_irq);
     restore_ELCR(irq_trigger);
     return 0;
 }

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