[PATCH v2 02/21] KVM: Make vmport KVM-compatible

Jan Kiszka
2010-02-03T08:54:17Z

The vmport "device" accesses the VCPU registers, so it requires proper
cpu_synchronize_state. Add it to vmport_ioport_read, which also
synchronizes vmport_ioport_write.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
hw/vmport.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/hw/vmport.c b/hw/vmport.c
index 884af3f..6c9d7c9 100644
--- a/hw/vmport.c
+++ b/hw/vmport.c
@@ -25,6 +25,7 @@
#include "isa.h"
#include "pc.h"
#include "sysemu.h"
+#include "kvm.h"

//#define VMPORT_DEBUG

@@ -58,6 +59,8 @@ static uint32_t vmport_ioport_read(void *opaque, uint32_t addr)
unsigned char command;
uint32_t eax;

+ cpu_synchronize_state(env);
+
eax = env->regs[R_EAX];
if (eax != VMPORT_MAGIC)
return eax;
--
1.6.0.2