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authorLiu, Jinsong <jinsong.liu@intel.com>2013-09-25 16:40:23 +0000
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2013-09-25 16:40:23 +0000
commit11addd0ab9371af2b6ec028c7fe4e4c4992252fc (patch)
tree23984c61b9df42d2339aff90334e9b85b67c480e /xen-all.c
parent4bc78a877252d772b983810a7d2c0be00e9be70e (diff)
qemu: Add qemu xen logic for Xen HVM S3 resume
This patch is qemu patch 2 to fix Xen HVM S3 bug, adding qemu xen logic. When qemu wakeup, qemu xen logic is notified and hypercall to xen hypervisor to unpause domain. Signed-off-by: Liu Jinsong <jinsong.liu@intel.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Diffstat (limited to 'xen-all.c')
-rw-r--r--xen-all.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/xen-all.c b/xen-all.c
index 839f14f53c..10af44c66d 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -98,6 +98,7 @@ typedef struct XenIOState {
Notifier exit;
Notifier suspend;
+ Notifier wakeup;
} XenIOState;
/* Xen specific function for piix pci */
@@ -1060,6 +1061,11 @@ static void xen_read_physmap(XenIOState *state)
free(entries);
}
+static void xen_wakeup_notifier(Notifier *notifier, void *data)
+{
+ xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 0);
+}
+
int xen_hvm_init(MemoryRegion **ram_memory)
{
int i, rc;
@@ -1089,6 +1095,9 @@ int xen_hvm_init(MemoryRegion **ram_memory)
state->suspend.notify = xen_suspend_notifier;
qemu_register_suspend_notifier(&state->suspend);
+ state->wakeup.notify = xen_wakeup_notifier;
+ qemu_register_wakeup_notifier(&state->wakeup);
+
xc_get_hvm_param(xen_xc, xen_domid, HVM_PARAM_IOREQ_PFN, &ioreq_pfn);
DPRINTF("shared page at pfn %lx\n", ioreq_pfn);
state->shared_page = xc_map_foreign_range(xen_xc, xen_domid, XC_PAGE_SIZE,