[Xen-changelog] [xen-unstable] [IA64] Fix PAL_HALT of dom0 for panic_notifier_list

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

# HG changeset patch
# User Alex Williamson <alex.williamson@xxxxxx>
# Date 1185899440 21600
# Node ID 039f2ccb1e383a52eb44ba3ed80859548932b95e
# Parent  d69a57b29e3fa38a044010c12f366f15244e4257
[IA64] Fix PAL_HALT of dom0 for panic_notifier_list

Currently dom0 cannot call panic_notifier_list in panic().
This is caused by PAL_HALT called from smp_send_stop().
When dom0 calls PAL_HALT, Hypervisor reset system.
So if dom0 panic, we cannot use panic_notifier_list.
Current PAL_HALT of xen is different from ia64 specification.
This patch fixes this issue.

Signed-off-by: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>
---
 xen/arch/ia64/xen/fw_emul.c |   12 +++---------
 1 files changed, 3 insertions(+), 9 deletions(-)

diff -r d69a57b29e3f -r 039f2ccb1e38 xen/arch/ia64/xen/fw_emul.c
--- a/xen/arch/ia64/xen/fw_emul.c       Mon Jul 30 18:14:29 2007 -0600
+++ b/xen/arch/ia64/xen/fw_emul.c       Tue Jul 31 10:30:40 2007 -0600
@@ -819,15 +819,9 @@ xen_pal_emulator(unsigned long index, u6
                }
                break;
            case PAL_HALT:
-               if (current->domain == dom0) {
-                       printk ("Domain0 halts the machine\n");
-                       console_start_sync();
-                       (*efi.reset_system)(EFI_RESET_SHUTDOWN,0,0,NULL);
-               } else {
-                       set_bit(_VPF_down, &current->pause_flags);
-                       vcpu_sleep_nosync(current);
-                       status = PAL_STATUS_SUCCESS;
-               }
+               set_bit(_VPF_down, &current->pause_flags);
+               vcpu_sleep_nosync(current);
+               status = PAL_STATUS_SUCCESS;
                break;
            case PAL_HALT_LIGHT:
                if (VMX_DOMAIN(current)) {

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