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[Qemu-devel] [PATCH] Add ACPI power button emulation
From: |
Gleb Natapov |
Subject: |
[Qemu-devel] [PATCH] Add ACPI power button emulation |
Date: |
Thu, 30 Apr 2009 12:40:54 +0300 |
Signed-off-by: Gleb Natapov <address@hidden>
diff --git a/hw/acpi.c b/hw/acpi.c
index 53c1fec..6141522 100644
--- a/hw/acpi.c
+++ b/hw/acpi.c
@@ -752,6 +752,15 @@ void qemu_system_device_hot_add(int bus, int slot, int
state)
}
}
+void qemu_press_power_button(void)
+{
+ gpe.sts |= (1 << 8);
+ if (gpe.en & (1 << 8)) {
+ qemu_set_irq(pm_state->irq, 1);
+ qemu_set_irq(pm_state->irq, 0);
+ }
+}
+
struct acpi_table_header
{
char signature [4]; /* ACPI signature (4 ASCII characters) */
diff --git a/monitor.c b/monitor.c
index b33fea1..35202aa 100644
--- a/monitor.c
+++ b/monitor.c
@@ -1211,6 +1211,11 @@ static void do_system_reset(Monitor *mon)
qemu_system_reset_request();
}
+static void do_press_pwrb(Monitor *mon)
+{
+ qemu_press_power_button();
+}
+
static void do_system_powerdown(Monitor *mon)
{
qemu_system_powerdown_request();
@@ -1733,6 +1738,7 @@ static const mon_cmd_t mon_cmds[] = {
#if defined(TARGET_I386)
{ "nmi", "i", do_inject_nmi,
"cpu", "inject an NMI on the given CPU", },
+ { "press_power_button", "", do_press_pwrb, "", "press power button" },
#endif
{ "migrate", "-ds", do_migrate,
"[-d] uri", "migrate to URI (using -d to not wait for completion)" },
diff --git a/pc-bios/bios-pq/0015_add-power_button_aml_object.patch
b/pc-bios/bios-pq/0015_add-power_button_aml_object.patch
new file mode 100644
index 0000000..7477b71
--- /dev/null
+++ b/pc-bios/bios-pq/0015_add-power_button_aml_object.patch
@@ -0,0 +1,27 @@
+Add power button device object to AML.
+
+diff --git a/bios/acpi-dsdt.dsl b/bios/acpi-dsdt.dsl
+index 7bff30a..0ca129d 100644
+--- a/bios/acpi-dsdt.dsl
++++ b/bios/acpi-dsdt.dsl
+@@ -38,6 +38,11 @@ DefinitionBlock (
+
+ /* PCI Bus definition */
+ Scope(\_SB) {
++ Device (PWRB) {
++ Name (_HID, EisaId ("PNP0C0C"))
++ Name (_STA, 0x0B)
++ }
++
+ Device(PCI0) {
+ Name (_HID, EisaId ("PNP0A03"))
+ Name (_ADR, 0x00)
+@@ -724,7 +729,7 @@ DefinitionBlock (
+ Return(0x01)
+ }
+ Method(_L08) {
+- Return(0x01)
++ Notify(\_SB.PWRB, 0x80)
+ }
+ Method(_L09) {
+ Return(0x01)
diff --git a/pc-bios/bios-pq/series b/pc-bios/bios-pq/series
index fdef179..85e587e 100644
--- a/pc-bios/bios-pq/series
+++ b/pc-bios/bios-pq/series
@@ -12,3 +12,4 @@
0012-load-smbios-entries-and-files-from-qemu.patch
0013_fix-non-acpi-timer-interrupt-routing.patch
0014_add-srat-acpi-table-support.patch
+015_add-power_button_aml_object.patch
diff --git a/sysemu.h b/sysemu.h
index 50438a6..a8abb3c 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -38,6 +38,8 @@ void qemu_system_powerdown_request(void);
int qemu_shutdown_requested(void);
int qemu_reset_requested(void);
int qemu_powerdown_requested(void);
+void qemu_press_power_button(void);
+
#if !defined(TARGET_SPARC) && !defined(TARGET_I386)
// Please implement a power failure function to signal the OS
#define qemu_system_powerdown() do{}while(0)
--
Gleb.
- [Qemu-devel] [PATCH] Add ACPI power button emulation,
Gleb Natapov <=