* Remove the xen-pvclock-resume patch, which has finally been merged

into 2.6.32.

svn path=/nixpkgs/trunk/; revision=26149
This commit is contained in:
Eelco Dolstra 2011-03-03 15:36:13 +00:00
parent 43cca4d6ab
commit 5cc5e16104
3 changed files with 0 additions and 58 deletions

View File

@ -224,10 +224,4 @@ in
patch = ./guruplug-mach-type.patch;
};
xen_pvclock_resume =
{ # Fix the clock after a DomU restore following a Dom0 reboot or migration.
name = "xen-pvclock-resume";
patch = ./xen-pvclock-resume.patch;
};
}

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@ -1,51 +0,0 @@
From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Mon, 25 Oct 2010 16:53:46 -0700
Subject: [PATCH] x86/pvclock: zero last_value on resume
If the guest domain has been suspend/resumed or migrated, then the
system clock backing the pvclock clocksource may revert to a smaller
value (ie, can be non-monotonic across the migration/save-restore).
Make sure we zero last_value in that case so that the domain
continues to see clock updates.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index cd02f32..6226870 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -11,5 +11,6 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src);
void pvclock_read_wallclock(struct pvclock_wall_clock *wall,
struct pvclock_vcpu_time_info *vcpu,
struct timespec *ts);
+void pvclock_resume(void);
#endif /* _ASM_X86_PVCLOCK_H */
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 239427c..a4f07c1 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -120,6 +120,11 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src)
static atomic64_t last_value = ATOMIC64_INIT(0);
+void pvclock_resume(void)
+{
+ atomic64_set(&last_value, 0);
+}
+
cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
{
struct pvclock_shadow_time shadow;
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index b2bb5aa..5da5e53 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -426,6 +426,8 @@ void xen_timer_resume(void)
{
int cpu;
+ pvclock_resume();
+
if (xen_clockevent != &xen_vcpuop_clockevent)
return;

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@ -4904,7 +4904,6 @@ let
kernelPatches.cifs_timeout
kernelPatches.no_xsave
kernelPatches.dell_rfkill
kernelPatches.xen_pvclock_resume
];
};