The hypervisor continues assuming that vcpu_info is stored in per-cpu data
which was set up by xen_vcpu_setup(),
while on canceled suspend, the call to xen_hvm_init_shared_info() will now make
the guest think that vcpu_info
is in the shared page, so we do not call xen_hvm_init_shared_info() on suspend
canceled.
Signed-off-by: Charles Ouyang <ouyangzhao...@huawei.com>
Reviewed-by: Boris Ostrovsky <boris.ostrov...@oracle.com>
---
arch/x86/xen/suspend.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
index d949769..b2bed45 100644
--- a/arch/x86/xen/suspend.c
+++ b/arch/x86/xen/suspend.c
@@ -32,7 +32,8 @@ static void xen_hvm_post_suspend(int suspend_cancelled)
{
#ifdef CONFIG_XEN_PVHVM
int cpu;
- xen_hvm_init_shared_info();
+ if (!suspend_cancelled)
+ xen_hvm_init_shared_info();
xen_callback_vector();
xen_unplug_emulated_devices();
if (xen_feature(XENFEAT_hvm_safe_pvclock)) {
--
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