[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL 2/4] qemu: Add qemu xen logic for Xen HVM S3 resume
From: |
Stefano Stabellini |
Subject: |
[Qemu-devel] [PULL 2/4] qemu: Add qemu xen logic for Xen HVM S3 resume |
Date: |
Wed, 25 Sep 2013 17:51:21 +0100 |
From: Liu, Jinsong <address@hidden>
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 <address@hidden>
Signed-off-by: Stefano Stabellini <address@hidden>
Reviewed-by: Anthony PERARD <address@hidden>
---
xen-all.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/xen-all.c b/xen-all.c
index 839f14f..10af44c 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,
--
1.7.2.5