xen/x86-ioapic-ack-default.patch
Charles Arnold 05bedd5488 - bnc#681302 - xm create -x <guest> returns "ImportError: No module
named ext"
  xm-create-xflag.patch

- Fix xen-utils to cope with xen-unstable c/s 21483

- xz-devel is available since 11.2, make it optional for SLES11SP1

- bnc#665610 - xm console > 1 to same VM messes up both consoles
  Upstream rejected due to portability concern, see
  http://lists.xensource.com/archives/html/xen-devel/2011-02/msg00942.html
  xenconsole-no-multiple-connections.patch
- Enable support for kernel decompression for gzip, bzip2, and LZMA
  so that kernels compressed with any of these methods can be
  launched.

- Update to Xen 4.1.0 c/s 22861

OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=102
2011-03-21 16:47:37 +00:00

25 lines
839 B
Diff

Change default IO-APIC ack mode for single IO-APIC systems to old-style.
Index: xen-4.1.0-testing/xen/arch/x86/io_apic.c
===================================================================
--- xen-4.1.0-testing.orig/xen/arch/x86/io_apic.c
+++ xen-4.1.0-testing/xen/arch/x86/io_apic.c
@@ -1546,7 +1546,7 @@ static unsigned int startup_level_ioapic
return 0; /* don't check for pending */
}
-int __read_mostly ioapic_ack_new = 1;
+int __read_mostly ioapic_ack_new = -1;
static void setup_ioapic_ack(char *s)
{
if ( !strcmp(s, "old") )
@@ -2053,6 +2053,8 @@ void __init setup_IO_APIC(void)
else
io_apic_irqs = ~PIC_IRQS;
+ if (ioapic_ack_new < 0)
+ ioapic_ack_new = (nr_ioapics > 1);
printk("ENABLING IO-APIC IRQs\n");
printk(" -> Using %s ACK method\n", ioapic_ack_new ? "new" : "old");