[Xen-changelog] [xen-unstable] x86: freeze non-current vCPUs of dom0 before entering S5

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

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1227190877 0
# Node ID db7a713071fe69b40d279d6322a059e084f73e63
# Parent  857bda0c15b3584c6c2048657fd68ffbaef37b5c
x86: freeze non-current vCPUs of dom0 before entering S5

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
 xen/arch/x86/acpi/power.c |   36 ++++++++++++++++++++++++++++++++----
 1 files changed, 32 insertions(+), 4 deletions(-)

diff -r 857bda0c15b3 -r db7a713071fe xen/arch/x86/acpi/power.c
--- a/xen/arch/x86/acpi/power.c Thu Nov 20 14:17:09 2008 +0000
+++ b/xen/arch/x86/acpi/power.c Thu Nov 20 14:21:17 2008 +0000
@@ -77,19 +77,47 @@ static void freeze_domains(void)
 static void freeze_domains(void)
 {
     struct domain *d;
-
+    struct vcpu *v;
+
+    rcu_read_lock(&domlist_read_lock);
     for_each_domain ( d )
-        if ( d->domain_id != 0 )
+    {
+        switch ( d->domain_id )
+        {
+        case 0:
+            for_each_vcpu ( d, v )
+                if ( v != current )
+                    vcpu_pause(v);
+            break;
+        default:
             domain_pause(d);
+            break;
+        }
+    }
+    rcu_read_unlock(&domlist_read_lock);
 }
 
 static void thaw_domains(void)
 {
     struct domain *d;
-
+    struct vcpu *v;
+
+    rcu_read_lock(&domlist_read_lock);
     for_each_domain ( d )
-        if ( d->domain_id != 0 )
+    {
+        switch ( d->domain_id )
+        {
+        case 0:
+            for_each_vcpu ( d, v )
+                if ( v != current )
+                    vcpu_unpause(v);
+            break;
+        default:
             domain_unpause(d);
+            break;
+        }
+    }
+    rcu_read_unlock(&domlist_read_lock);
 }
 
 static void acpi_sleep_prepare(u32 state)

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