From: Corey Minyard <cminy...@mvista.com> Transfer the state information for the SMBus registers and internal data so it will work on a VM transfer.
Signed-off-by: Corey Minyard <cminy...@mvista.com> Cc: Michael S. Tsirkin <m...@redhat.com> Cc: Paolo Bonzini <pbonz...@redhat.com> Cc: Dr. David Alan Gilbert <dgilb...@redhat.com> --- hw/acpi/piix4.c | 3 ++- hw/i2c/pm_smbus.c | 31 +++++++++++++++++++++++++++++++ hw/i2c/smbus_ich9.c | 6 ++++-- include/hw/i2c/pm_smbus.h | 2 ++ 4 files changed, 39 insertions(+), 3 deletions(-) diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index e330f24c71..313305f5a0 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -309,7 +309,7 @@ static const VMStateDescription vmstate_cpuhp_state = { */ static const VMStateDescription vmstate_acpi = { .name = "piix4_pm", - .version_id = 3, + .version_id = 4, .minimum_version_id = 3, .minimum_version_id_old = 1, .load_state_old = acpi_load_old, @@ -320,6 +320,7 @@ static const VMStateDescription vmstate_acpi = { VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState), VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState), VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState), + VMSTATE_STRUCT(smb, PIIX4PMState, 4, pmsmb_vmstate, PMSMBus), VMSTATE_TIMER_PTR(ar.tmr.timer, PIIX4PMState), VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState), VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE), diff --git a/hw/i2c/pm_smbus.c b/hw/i2c/pm_smbus.c index 8793113c25..75907e1c22 100644 --- a/hw/i2c/pm_smbus.c +++ b/hw/i2c/pm_smbus.c @@ -19,6 +19,7 @@ */ #include "qemu/osdep.h" #include "hw/hw.h" +#include "hw/boards.h" #include "hw/i2c/pm_smbus.h" #include "hw/i2c/smbus_master.h" @@ -450,6 +451,36 @@ static const MemoryRegionOps pm_smbus_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; +static bool pm_smbus_vmstate_needed(void *opaque) +{ + MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine()); + + return !mc->smbus_no_migration_support; +} + +const VMStateDescription pmsmb_vmstate = { + .name = "pmsmb", + .version_id = 1, + .minimum_version_id = 1, + .needed = pm_smbus_vmstate_needed, + .fields = (VMStateField[]) { + VMSTATE_UINT8(smb_stat, PMSMBus), + VMSTATE_UINT8(smb_ctl, PMSMBus), + VMSTATE_UINT8(smb_cmd, PMSMBus), + VMSTATE_UINT8(smb_addr, PMSMBus), + VMSTATE_UINT8(smb_data0, PMSMBus), + VMSTATE_UINT8(smb_data1, PMSMBus), + VMSTATE_UINT32(smb_index, PMSMBus), + VMSTATE_UINT8_ARRAY(smb_data, PMSMBus, PM_SMBUS_MAX_MSG_SIZE), + VMSTATE_UINT8(smb_auxctl, PMSMBus), + VMSTATE_BOOL(i2c_enable, PMSMBus), + VMSTATE_BOOL(op_done, PMSMBus), + VMSTATE_BOOL(in_i2c_block_read, PMSMBus), + VMSTATE_BOOL(start_transaction_on_status_read, PMSMBus), + VMSTATE_END_OF_LIST() + } +}; + void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk) { smb->op_done = true; diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c index e6d8d28194..c9b7482a54 100644 --- a/hw/i2c/smbus_ich9.c +++ b/hw/i2c/smbus_ich9.c @@ -45,10 +45,12 @@ typedef struct ICH9SMBState { static const VMStateDescription vmstate_ich9_smbus = { .name = "ich9_smb", - .version_id = 1, + .version_id = 2, .minimum_version_id = 1, .fields = (VMStateField[]) { - VMSTATE_PCI_DEVICE(dev, struct ICH9SMBState), + VMSTATE_PCI_DEVICE(dev, ICH9SMBState), + VMSTATE_BOOL_V(irq_enabled, ICH9SMBState, 2), + VMSTATE_STRUCT(smb, ICH9SMBState, 2, pmsmb_vmstate, PMSMBus), VMSTATE_END_OF_LIST() } }; diff --git a/include/hw/i2c/pm_smbus.h b/include/hw/i2c/pm_smbus.h index 7bcca97672..5075fc64fa 100644 --- a/include/hw/i2c/pm_smbus.h +++ b/include/hw/i2c/pm_smbus.h @@ -43,4 +43,6 @@ typedef struct PMSMBus { void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk); +extern const VMStateDescription pmsmb_vmstate; + #endif /* PM_SMBUS_H */ -- 2.17.1