Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / xen / acpi.h

diff --git a/kernel/include/xen/acpi.h b/kernel/include/xen/acpi.h
new file mode 100644 (file)
index 0000000..4ddd7dc
--- /dev/null
+++ b/kernel/include/xen/acpi.h
@@ -0,0 +1,111 @@
+/******************************************************************************
+ * acpi.h
+ * acpi file for domain 0 kernel
+ *
+ * Copyright (c) 2011 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+ * Copyright (c) 2011 Yu Ke <ke.yu@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation; or, when distributed
+ * separately from the Linux kernel or incorporated into other
+ * software packages, subject to the following license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this source file (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy, modify,
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef _XEN_ACPI_H
+#define _XEN_ACPI_H
+
+#include <linux/types.h>
+
+#ifdef CONFIG_XEN_DOM0
+#include <asm/xen/hypervisor.h>
+#include <xen/xen.h>
+#include <linux/acpi.h>
+
+#define ACPI_MEMORY_DEVICE_CLASS        "memory"
+#define ACPI_MEMORY_DEVICE_HID          "PNP0C80"
+#define ACPI_MEMORY_DEVICE_NAME         "Hotplug Mem Device"
+
+int xen_stub_memory_device_init(void);
+void xen_stub_memory_device_exit(void);
+
+#define ACPI_PROCESSOR_CLASS            "processor"
+#define ACPI_PROCESSOR_DEVICE_HID       "ACPI0007"
+#define ACPI_PROCESSOR_DEVICE_NAME      "Processor"
+
+int xen_stub_processor_init(void);
+void xen_stub_processor_exit(void);
+
+void xen_pcpu_hotplug_sync(void);
+int xen_pcpu_id(uint32_t acpi_id);
+
+static inline int xen_acpi_get_pxm(acpi_handle h)
+{
+       unsigned long long pxm;
+       acpi_status status;
+       acpi_handle handle;
+       acpi_handle phandle = h;
+
+       do {
+               handle = phandle;
+               status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm);
+               if (ACPI_SUCCESS(status))
+                       return pxm;
+               status = acpi_get_parent(handle, &phandle);
+       } while (ACPI_SUCCESS(status));
+
+       return -ENXIO;
+}
+
+int xen_acpi_notify_hypervisor_sleep(u8 sleep_state,
+                                    u32 pm1a_cnt, u32 pm1b_cnd);
+int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state,
+                                    u32 val_a, u32 val_b);
+
+static inline int xen_acpi_suspend_lowlevel(void)
+{
+       /*
+       * Xen will save and restore CPU context, so
+       * we can skip that and just go straight to
+       * the suspend.
+       */
+       acpi_enter_sleep_state(ACPI_STATE_S3);
+       return 0;
+}
+
+static inline void xen_acpi_sleep_register(void)
+{
+       if (xen_initial_domain()) {
+               acpi_os_set_prepare_sleep(
+                       &xen_acpi_notify_hypervisor_sleep);
+               acpi_os_set_prepare_extended_sleep(
+                       &xen_acpi_notify_hypervisor_extended_sleep);
+
+               acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;
+       }
+}
+#else
+static inline void xen_acpi_sleep_register(void)
+{
+}
+#endif
+
+#endif /* _XEN_ACPI_H */