6e3c2d58e9
This patch implements the periodic and the swsmi ICH9 chipset timers. They are especially useful when prototyping UEFI firmware (e.g. with EDK2's OVMF) using QEMU. For backwards compatibility, the compat properties "x-smi-swsmi-timer", and "x-smi-periodic-timer" are introduced. Additionally, writes to the SMI_STS register are enabled for the corresponding two bits using a write mask to make future work easier. Signed-off-by: Dominic Prinz <git@dprinz.de> Message-Id: <1d90ea69e01ab71a0f2ced116801dc78e04f4448.1725991505.git.git@dprinz.de> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
|
|
* QEMU GMCH/ICH9 LPC PM Emulation
|
|
*
|
|
* Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
|
|
* VA Linux Systems Japan K.K.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>
|
|
*/
|
|
|
|
#ifndef HW_ACPI_ICH9_H
|
|
#define HW_ACPI_ICH9_H
|
|
|
|
#include "hw/acpi/acpi.h"
|
|
#include "hw/acpi/cpu_hotplug.h"
|
|
#include "hw/acpi/cpu.h"
|
|
#include "hw/acpi/pcihp.h"
|
|
#include "hw/acpi/memory_hotplug.h"
|
|
#include "hw/acpi/acpi_dev_interface.h"
|
|
#include "hw/acpi/ich9_tco.h"
|
|
|
|
#define ACPI_PCIHP_ADDR_ICH9 0x0cc0
|
|
|
|
typedef struct ICH9LPCPMRegs {
|
|
/*
|
|
* In ich9 spec says that pm1_cnt register is 32bit width and
|
|
* that the upper 16bits are reserved and unused.
|
|
* PM1a_CNT_BLK = 2 in FADT so it is defined as uint16_t.
|
|
*/
|
|
ACPIREGS acpi_regs;
|
|
|
|
MemoryRegion io;
|
|
MemoryRegion io_gpe;
|
|
MemoryRegion io_smi;
|
|
|
|
uint32_t smi_en;
|
|
uint32_t smi_en_wmask;
|
|
uint32_t smi_sts;
|
|
uint32_t smi_sts_wmask;
|
|
|
|
qemu_irq irq; /* SCI */
|
|
|
|
uint32_t pm_io_base;
|
|
Notifier powerdown_notifier;
|
|
|
|
bool cpu_hotplug_legacy;
|
|
AcpiCpuHotplug gpe_cpu;
|
|
CPUHotplugState cpuhp_state;
|
|
|
|
bool keep_pci_slot_hpc;
|
|
bool use_acpi_hotplug_bridge;
|
|
AcpiPciHpState acpi_pci_hotplug;
|
|
MemHotplugState acpi_memory_hotplug;
|
|
|
|
uint8_t disable_s3;
|
|
uint8_t disable_s4;
|
|
uint8_t s4_val;
|
|
bool smm_enabled;
|
|
bool smm_compat;
|
|
bool enable_tco;
|
|
TCOIORegs tco_regs;
|
|
|
|
bool swsmi_timer_enabled;
|
|
bool periodic_timer_enabled;
|
|
QEMUTimer *swsmi_timer;
|
|
QEMUTimer *periodic_timer;
|
|
} ICH9LPCPMRegs;
|
|
|
|
#define ACPI_PM_PROP_TCO_ENABLED "enable_tco"
|
|
|
|
void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm, qemu_irq sci_irq);
|
|
|
|
void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base);
|
|
extern const VMStateDescription vmstate_ich9_pm;
|
|
|
|
void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm);
|
|
|
|
void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
|
|
Error **errp);
|
|
void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
|
|
Error **errp);
|
|
void ich9_pm_device_unplug_request_cb(HotplugHandler *hotplug_dev,
|
|
DeviceState *dev, Error **errp);
|
|
void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
|
|
Error **errp);
|
|
bool ich9_pm_is_hotpluggable_bus(HotplugHandler *hotplug_dev, BusState *bus);
|
|
|
|
void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
|
|
#endif /* HW_ACPI_ICH9_H */
|