[Xen-changelog] [xen-unstable] stubdom: fix x86_64 irq stack size

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1206467739 0
# Node ID a16f7a9f8ea272b40bb01694c8fd33a1bbe5fe43
# Parent  89601e8c170103cf1b6f2bdc6ac4f72789f91ae2
stubdom: fix x86_64 irq stack size
by making it use STACK_SIZE like other places.

Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
---
 extras/mini-os/events.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff -r 89601e8c1701 -r a16f7a9f8ea2 extras/mini-os/events.c
--- a/extras/mini-os/events.c   Tue Mar 25 10:57:50 2008 +0000
+++ b/extras/mini-os/events.c   Tue Mar 25 17:55:39 2008 +0000
@@ -118,9 +118,7 @@ evtchn_port_t bind_virq(uint32_t virq, e
 }
 
 #if defined(__x86_64__)
-/* Allocate 4 pages for the irqstack */
-#define STACK_PAGES 4
-char irqstack[1024 * 4 * STACK_PAGES];
+char irqstack[2 * STACK_SIZE];
 
 static struct pda
 {
@@ -139,9 +137,9 @@ void init_events(void)
     asm volatile("movl %0,%%fs ; movl %0,%%gs" :: "r" (0));
     wrmsrl(0xc0000101, &cpu0_pda); /* 0xc0000101 is MSR_GS_BASE */
     cpu0_pda.irqcount = -1;
-    cpu0_pda.irqstackptr = irqstack + 1024 * 4 * STACK_PAGES;
+    cpu0_pda.irqstackptr = (void*) (((unsigned long)irqstack + 2 * STACK_SIZE) 
& ~(STACK_SIZE - 1));
 #endif
-    /* inintialise event handler */
+    /* initialize event handler */
     for ( i = 0; i < NR_EVS; i++ )
        {
         ev_actions[i].handler = default_handler;

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