Am 07.08.2012 18:20, schrieb Jason Baron: > On Tue, Aug 07, 2012 at 06:13:25PM +0200, Andreas Färber wrote: >> Hi Jason, >> >> Am 07.08.2012 18:01, schrieb Jason Baron: >>> Hi, >>> >>> vmstate_ahci has its 'unmigratable' bit set. Gerd suggested that there was >>> work >>> in this area. Anybody know the status on it? >> >> That was me working on it. I have a branch corresponding to an RFC I >> sent around Christmas - issue being how to model the variable number of >> ports in VMSD - that I need to update to the latest suggestion by Igor. >> >> Jason/Kevin, should I prioritize that for 1.2? Or is that a -next topic? >> > > I ran into while trying to test q35 live migration (which currently > aborts due to no ahci support). If you have any updated code, I can test > it for you :)
This is the updated approach that I mentioned in the other thread: http://repo.or.cz/w/qemu/afaerber.git/shortlog/refs/heads/ahci-migration Totally untested so far and as before there is a disconnect between AHCIState and AHCIDevice. Andreas diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c index efea93f..12b9e0d 100644 --- a/hw/ide/ahci.c +++ b/hw/ide/ahci.c @@ -1173,6 +1173,47 @@ void ahci_reset(AHCIState *s) } } +const VMStateDescription vmstate_ahci_device = { + .name = "ahci port", + .version_id = 1, + .fields = (VMStateField []) { + VMSTATE_IDE_BUS(port, AHCIDevice), + VMSTATE_UINT32(port_state, AHCIDevice), + VMSTATE_UINT32(finished, AHCIDevice), + VMSTATE_UINT32(port_regs.lst_addr, AHCIDevice), + VMSTATE_UINT32(port_regs.lst_addr_hi, AHCIDevice), + VMSTATE_UINT32(port_regs.fis_addr, AHCIDevice), + VMSTATE_UINT32(port_regs.fis_addr_hi, AHCIDevice), + VMSTATE_UINT32(port_regs.irq_stat, AHCIDevice), + VMSTATE_UINT32(port_regs.irq_mask, AHCIDevice), + VMSTATE_UINT32(port_regs.cmd, AHCIDevice), + VMSTATE_UINT32(port_regs.tfdata, AHCIDevice), + VMSTATE_UINT32(port_regs.sig, AHCIDevice), + VMSTATE_UINT32(port_regs.scr_stat, AHCIDevice), + VMSTATE_UINT32(port_regs.scr_ctl, AHCIDevice), + VMSTATE_UINT32(port_regs.scr_err, AHCIDevice), + VMSTATE_UINT32(port_regs.scr_act, AHCIDevice), + VMSTATE_UINT32(port_regs.cmd_issue, AHCIDevice), + VMSTATE_END_OF_LIST() + }, +}; + +const VMStateDescription vmstate_ahci = { + .name = "ahci", + .version_id = 1, + .fields = (VMStateField []) { + VMSTATE_BUFFER_MULTIPLY(dev, AHCIState, 0, NULL, 0, ports, + sizeof(AHCIDevice)), + VMSTATE_UINT32(control_regs.cap, AHCIState), + VMSTATE_UINT32(control_regs.ghc, AHCIState), + VMSTATE_UINT32(control_regs.irqstatus, AHCIState), + VMSTATE_UINT32(control_regs.impl, AHCIState), + VMSTATE_UINT32(control_regs.version, AHCIState), + VMSTATE_UINT32(idp_index, AHCIState), + VMSTATE_END_OF_LIST() + }, +}; + typedef struct SysbusAHCIState { SysBusDevice busdev; AHCIState ahci; @@ -1181,7 +1222,10 @@ typedef struct SysbusAHCIState { static const VMStateDescription vmstate_sysbus_ahci = { .name = "sysbus-ahci", - .unmigratable = 1, + .fields = (VMStateField[]) { + VMSTATE_AHCI(ahci, AHCIPCIState), + VMSTATE_END_OF_LIST() + }, }; static void sysbus_ahci_reset(DeviceState *dev) diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h index 1200a56..e7ad1d9 100644 --- a/hw/ide/ahci.h +++ b/hw/ide/ahci.h @@ -297,7 +297,7 @@ typedef struct AHCIState { MemoryRegion idp; /* Index-Data Pair I/O port space */ unsigned idp_offset; /* Offset of index in I/O port space */ uint32_t idp_index; /* Current IDP index */ - int ports; + uint32_t ports; qemu_irq irq; DMAContext *dma; } AHCIState; @@ -307,6 +307,16 @@ typedef struct AHCIPCIState { AHCIState ahci; } AHCIPCIState; +extern const VMStateDescription vmstate_ahci; + +#define VMSTATE_AHCI(_field, _state) { \ + .name = (stringify(_field)), \ + .size = sizeof(AHCIState), \ + .vmsd = &vmstate_ahci, \ + .flags = VMS_STRUCT, \ + .offset = vmstate_offset_value(_state, _field, AHCIState), \ +} + typedef struct NCQFrame { uint8_t fis_type; uint8_t c; diff --git a/hw/ide/ich.c b/hw/ide/ich.c index 272b773..ae6f56f 100644 --- a/hw/ide/ich.c +++ b/hw/ide/ich.c @@ -79,9 +79,14 @@ #define ICH9_IDP_INDEX 0x10 #define ICH9_IDP_INDEX_LOG2 0x04 -static const VMStateDescription vmstate_ahci = { +static const VMStateDescription vmstate_ich9_ahci = { .name = "ahci", - .unmigratable = 1, + .version_id = 1, + .fields = (VMStateField []) { + VMSTATE_PCI_DEVICE(card, AHCIPCIState), + VMSTATE_AHCI(ahci, AHCIPCIState), + VMSTATE_END_OF_LIST() + }, }; static void pci_ich9_reset(DeviceState *dev) @@ -152,7 +157,7 @@ static void ich_ahci_class_init(ObjectClass *klass, void *data) k->device_id = PCI_DEVICE_ID_INTEL_82801IR; k->revision = 0x02; k->class_id = PCI_CLASS_STORAGE_SATA; - dc->vmsd = &vmstate_ahci; + dc->vmsd = &vmstate_ich9_ahci; dc->reset = pci_ich9_reset; } -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
