From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
hw/acpi_piix4.c | 4 ++++
hw/xen.h | 2 ++
xen-all.c | 7 +++++++
xen-stub.c | 4 ++++
4 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c
index 173d781..1bcd40e 100644
--- a/hw/acpi_piix4.c
+++ b/hw/acpi_piix4.c
@@ -23,6 +23,7 @@
#include "acpi.h"
#include "sysemu.h"
#include "range.h"
+#include "xen.h"
//#define DEBUG
@@ -179,6 +180,9 @@ static void pm_ioport_write(IORange *ioport, uint64_t addr,
unsigned width,
if (s->cmos_s3) {
qemu_irq_raise(s->cmos_s3);
}
+ if (xen_enabled()) {
+ xen_set_hvm_sleep_state();
+ }
default:
break;
}
diff --git a/hw/xen.h b/hw/xen.h
index dd3fb68..8920550 100644
--- a/hw/xen.h
+++ b/hw/xen.h
@@ -44,6 +44,8 @@ int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
void xen_piix3_set_irq(void *opaque, int irq_num, int level);
void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
+void xen_set_hvm_sleep_state(void);
+
int xen_init(int smp_cpus);
#if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
diff --git a/xen-all.c b/xen-all.c
index b94d56e..939d9b7 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -460,6 +460,13 @@ static void xen_main_loop_prepare(XenIOState *state)
}
+/* ACPI */
+
+void xen_set_hvm_sleep_state(void)
+{
+ xc_set_hvm_param(xen_xc, xen_domid, HVM_PARAM_ACPI_S_STATE, 3);
+}
+
/* Initialise Xen */
static void xen_vm_change_state_handler(void *opaque, int running, int reason)
diff --git a/xen-stub.c b/xen-stub.c
index c9f477d..d22f475 100644
--- a/xen-stub.c
+++ b/xen-stub.c
@@ -28,6 +28,10 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size)
{
}
+void xen_set_hvm_sleep_state(void)
+{
+}
+
int xen_init(int smp_cpus)
{
return -ENOSYS;
--
1.7.1
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