7 files changed, 75 insertions, 86 deletions

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 2afb3d2086b3..9f11dc296cdd 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -102,6 +102,8 @@ static struct acpi_driver acpi_processor_driver = {
                 .add = acpi_processor_add,
                 .remove = acpi_processor_remove,
                 .start = acpi_processor_start,
+                .suspend = acpi_processor_suspend,
+                .resume = acpi_processor_resume,
                 },
 };
 
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index d9b8af763e1e..f18261368e76 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -325,6 +325,23 @@ static void acpi_state_timer_broadcast(struct acpi_processor *pr,
 
 #endif
 
+/*
+ * Suspend / resume control
+ */
+static int acpi_idle_suspend;
+
+int acpi_processor_suspend(struct acpi_device * device, pm_message_t state)
+{
+        acpi_idle_suspend = 1;
+        return 0;
+}
+
+int acpi_processor_resume(struct acpi_device * device)
+{
+        acpi_idle_suspend = 0;
+        return 0;
+}
+
 static void acpi_processor_idle(void)
 {
         struct acpi_processor *pr = NULL;
@@ -355,7 +372,7 @@ static void acpi_processor_idle(void)
         }
 
         cx = pr->power.state;
-        if (!cx) {
+        if (!cx || acpi_idle_suspend) {
                 if (pm_idle_save)
                         pm_idle_save();
                 else
diff --git a/drivers/acpi/sleep/Makefile b/drivers/acpi/sleep/Makefile
index 195a4f69c0f7..ba9bd403d443 100644
--- a/drivers/acpi/sleep/Makefile
+++ b/drivers/acpi/sleep/Makefile
@@ -1,4 +1,4 @@
-obj-y                                   := poweroff.o wakeup.o
+obj-y                                   := wakeup.o
 obj-$(CONFIG_ACPI_SLEEP)                += main.o
 obj-$(CONFIG_ACPI_SLEEP)                += proc.o
 
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index c52ade816fb4..85633c585aab 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -15,6 +15,9 @@
 #include <linux/dmi.h>
 #include <linux/device.h>
 #include <linux/suspend.h>
+
+#include <asm/io.h>
+
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 #include "sleep.h"
@@ -57,6 +60,27 @@ static int acpi_pm_set_target(suspend_state_t pm_state)
         return error;
 }
 
+int acpi_sleep_prepare(u32 acpi_state)
+{
+#ifdef CONFIG_ACPI_SLEEP
+        /* do we have a wakeup address for S2 and S3? */
+        if (acpi_state == ACPI_STATE_S3) {
+                if (!acpi_wakeup_address) {
+                        return -EFAULT;
+                }
+                acpi_set_firmware_waking_vector((acpi_physical_address)
+                                                virt_to_phys((void *)
+                                                             acpi_wakeup_address));
+
+        }
+        ACPI_FLUSH_CPU_CACHE();
+        acpi_enable_wakeup_device_prep(acpi_state);
+#endif
+        acpi_gpe_sleep_prepare(acpi_state);
+        acpi_enter_sleep_state_prep(acpi_state);
+        return 0;
+}
+
 /**
  *      acpi_pm_prepare - Do preliminary suspend work.
  *      @pm_state: ignored
@@ -350,6 +374,20 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
         return d_max;
 }
 
+static void acpi_power_off_prepare(void)
+{
+        /* Prepare to power off the system */
+        acpi_sleep_prepare(ACPI_STATE_S5);
+}
+
+static void acpi_power_off(void)
+{
+        /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
+        printk("%s called\n", __FUNCTION__);
+        local_irq_disable();
+        acpi_enter_sleep_state(ACPI_STATE_S5);
+}
+
 int __init acpi_sleep_init(void)
 {
         acpi_status status;
@@ -363,16 +401,17 @@ int __init acpi_sleep_init(void)
         if (acpi_disabled)
                 return 0;
 
+        sleep_states[ACPI_STATE_S0] = 1;
+        printk(KERN_INFO PREFIX "(supports S0");
+
 #ifdef CONFIG_SUSPEND
-        printk(KERN_INFO PREFIX "(supports");
-        for (i = ACPI_STATE_S0; i < ACPI_STATE_S4; i++) {
+        for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
                 status = acpi_get_sleep_type_data(i, &type_a, &type_b);
                 if (ACPI_SUCCESS(status)) {
                         sleep_states[i] = 1;
                         printk(" S%d", i);
                 }
         }
-        printk(")\n");
 
         pm_set_ops(&acpi_pm_ops);
 #endif
@@ -382,10 +421,16 @@ int __init acpi_sleep_init(void)
         if (ACPI_SUCCESS(status)) {
                 hibernation_set_ops(&acpi_hibernation_ops);
                 sleep_states[ACPI_STATE_S4] = 1;
+                printk(" S4");
         }
-#else
-        sleep_states[ACPI_STATE_S4] = 0;
 #endif
-
+        status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
+        if (ACPI_SUCCESS(status)) {
+                sleep_states[ACPI_STATE_S5] = 1;
+                printk(" S5");
+                pm_power_off_prepare = acpi_power_off_prepare;
+                pm_power_off = acpi_power_off;
+        }
+        printk(")\n");
         return 0;
 }
diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c
deleted file mode 100644
index 39e40d56b034..000000000000
--- a/drivers/acpi/sleep/poweroff.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * poweroff.c - ACPI handler for powering off the system.
- *
- * AKA S5, but it is independent of whether or not the kernel supports
- * any other sleep support in the system.
- *
- * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
- *
- * This file is released under the GPLv2.
- */
-
-#include <linux/pm.h>
-#include <linux/init.h>
-#include <acpi/acpi_bus.h>
-#include <linux/sysdev.h>
-#include <asm/io.h>
-#include "sleep.h"
-
-int acpi_sleep_prepare(u32 acpi_state)
-{
-#ifdef CONFIG_ACPI_SLEEP
-        /* do we have a wakeup address for S2 and S3? */
-        if (acpi_state == ACPI_STATE_S3) {
-                if (!acpi_wakeup_address) {
-                        return -EFAULT;
-                }
-                acpi_set_firmware_waking_vector((acpi_physical_address)
-                                                virt_to_phys((void *)
-                                                             acpi_wakeup_address));
-
-        }
-        ACPI_FLUSH_CPU_CACHE();
-        acpi_enable_wakeup_device_prep(acpi_state);
-#endif
-        acpi_gpe_sleep_prepare(acpi_state);
-        acpi_enter_sleep_state_prep(acpi_state);
-        return 0;
-}
-
-#ifdef CONFIG_PM
-
-static void acpi_power_off_prepare(void)
-{
-        /* Prepare to power off the system */
-        acpi_sleep_prepare(ACPI_STATE_S5);
-}
-
-static void acpi_power_off(void)
-{
-        /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
-        printk("%s called\n", __FUNCTION__);
-        local_irq_disable();
-        /* Some SMP machines only can poweroff in boot CPU */
-        acpi_enter_sleep_state(ACPI_STATE_S5);
-}
-
-static int acpi_poweroff_init(void)
-{
-        if (!acpi_disabled) {
-                u8 type_a, type_b;
-                acpi_status status;
-
-                status =
-                    acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
-                if (ACPI_SUCCESS(status)) {
-                        pm_power_off_prepare = acpi_power_off_prepare;
-                        pm_power_off = acpi_power_off;
-                }
-        }
-        return 0;
-}
-
-late_initcall(acpi_poweroff_init);
-
-#endif                          /* CONFIG_PM */
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3c9bb85a6a93..d05891f16282 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -417,7 +417,6 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
         arg0.integer.value = level;
         status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL);
 
-        printk(KERN_DEBUG "set_level status: %x\n", status);
         return status;
 }
 
@@ -1754,7 +1753,7 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
 
 static int acpi_video_bus_start_devices(struct acpi_video_bus *video)
 {
-        return acpi_video_bus_DOS(video, 1, 0);
+        return acpi_video_bus_DOS(video, 0, 0);
 }
 
 static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)
diff --git a/drivers/kvm/Kconfig b/drivers/kvm/Kconfig
index 7b64fd4aa2f3..0a419a0de603 100644
--- a/drivers/kvm/Kconfig
+++ b/drivers/kvm/Kconfig
@@ -6,7 +6,8 @@ menuconfig VIRTUALIZATION
         depends on X86
         default y
         ---help---
-          Say Y here to get to see options for virtualization guest drivers.
+          Say Y here to get to see options for using your Linux host to run other
+          operating systems inside virtual machines (guests).
           This option alone does not add any kernel code.
 
           If you say N, all options in this submenu will be skipped and disabled.