diff options
| author | Gleb Natapov <gleb@redhat.com> | 2012-06-04 14:31:55 +0300 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-06-19 13:36:56 -0500 |
| commit | 459ae5ea5ad682c2b3220beb244d4102c1a4e332 (patch) | |
| tree | d6959529e733678024a1be608bf65948610e8fff /hw/pc.h | |
| parent | dcff25f2cd8c11a9368cc2369aeb0319c32d9e26 (diff) | |
Add PIIX4 properties to control PM system states.
This patch adds two things. First it allows QEMU to distinguish between
regular powerdown and S4 powerdown. Later separate QMP notification will
be added for S4 powerdown. Second it allows S3/S4 states to be disabled
from QEMU command line. Some guests known to be broken with regards to
power management, but allow to use it anyway. Using new properties
management will be able to disable S3/S4 for such guests.
Supported system state are passed to a firmware using new fw_cfg file.
The file contains 6 byte array. Each byte represents one system
state. If byte at offset X has its MSB set it means that system state
X is supported and to enter it guest should use the value from lowest 3
bits.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/pc.h')
| -rw-r--r-- | hw/pc.h | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -106,7 +106,7 @@ void pc_register_ferr_irq(qemu_irq irq); void pc_acpi_smi_interrupt(void *opaque, int irq, int level); void pc_cpus_init(const char *cpu_model); -void pc_memory_init(MemoryRegion *system_memory, +void *pc_memory_init(MemoryRegion *system_memory, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, @@ -142,7 +142,7 @@ int acpi_table_add(const char *table_desc); i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base, qemu_irq sci_irq, qemu_irq smi_irq, - int kvm_enabled); + int kvm_enabled, void *fw_cfg); void piix4_smbus_register_device(SMBusDevice *dev, uint8_t addr); /* hpet.c */ |