File 0202-kvmclock-Ensure-proper-env-tsc-valu.patch of Package qemu.10255

Overview Repositories Revisions Requests Users Attributes Meta

File 0202-kvmclock-Ensure-proper-env-tsc-valu.patch of Package qemu.10255

From c769df8abeb1917d3bf883219da38849a2fdfd80 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 5 Sep 2014 10:52:47 -0300
Subject: [PATCH] kvmclock: Ensure proper env->tsc value for
 kvmclock_current_nsec calculation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Ensure proper env->tsc value for kvmclock_current_nsec calculation.

Reported-by: Marcin Gibuła <m.gibula@beyond.pl>
Analyzed-by: Marcin Gibuła <m.gibula@beyond.pl>
Cc: qemu-stable@nongnu.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 317b0a6d8ba44e9bf8f9c3dbd776c4536843d82c)
[BSC#947164, BSC#953187]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/i386/kvm/clock.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/i386/kvm/clock.c b/hw/i386/kvm/clock.c
index 892aa025f4..2b5f1d3b6f 100644
--- a/hw/i386/kvm/clock.c
+++ b/hw/i386/kvm/clock.c
@@ -16,6 +16,7 @@
 #include "qemu-common.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/kvm.h"
+#include "sysemu/cpus.h"
 #include "hw/sysbus.h"
 #include "hw/kvm/clock.h"
 
@@ -75,6 +76,9 @@ static void kvmclock_vm_state_change(void *opaque, int running,
         if (s->clock_valid) {
             return;
         }
+
+        cpu_synchronize_all_states();
+        cpu_clean_all_dirty();
         ret = kvm_vm_ioctl(kvm_state, KVM_GET_CLOCK, &data);
         if (ret < 0) {
             fprintf(stderr, "KVM_GET_CLOCK failed: %s\n", strerror(ret));

Places

File 0202-kvmclock-Ensure-proper-env-tsc-valu.patch of Package qemu.10255

Places