[Qemu-devel] Re: [PATCH 00/61] Q35 chip set and stuff.

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, Sep 30, 2009 at 07:17:36PM +0900, Isaku Yamahata wrote:
> This patch set is for Q35 chipset(GMCH and ICH9) based PC.
> 
> Anthony,
> I'm aware that this patch set is already conflicting to other's patches.
> Which tree/changeset do you want me to rebase?
> Your staging qemu repo doesn't seem to include the latest patches.
> As I'm seeing regular patch conflicts, I need your help as a maintainer.
> 
> The motivation is to support newer hardware features because
> piix chipset is very old.
> Especially I have PCI express in mind and this is the basic
> infrastructure for PCI express hot plug and PCI express native 
> direct attach.
> With this patch set, you can see PCIe MMCONFIG space and 3+ PCI busses.
> I haven't implemented PCI express port/switch and PCI express hot plug.
> This is my next TODO. and then PCI express native direct attach/passthrough
> 
> I can boot Linux 2.6.30 with PCIe MMCONFIG with APIC mode pci interrupt
> routing. I haven't tested other OSes.
> (I patches linux kernel to test MMCONFIG because Linux uses conventional
> IO port to PCI config space, i.e. 256)
> To use this patch, bios also needs patches I'll sent out soon.
> 
> 
> Firstly this patch set splits up current piix pc code into
> piix specific code and common code.
> Those patches are almost same as the one I sent out before.
> And then PCI related patches comes in. They cleans up PCI related code
> , implements PCIe MMCONFIG and fixes PCI bridge.
> Thirdly q35 chipset is implemented.
> Lastly IO apic related 

I don't really understand how these relate to pci patches
you posted and some of which I acked previously.

> Changes from split out piix specific part from pc emulator. V6
> - rebased to 731c54f86988d3f28268f184fabfe9b2a32fb5d3
> - PCIe MMCONFIG
> - pci bridge related fixes
> - chipset emulator works.
> - IOAPIC patches
> 
> Changes from v5:
> - rebased 0.11.0-rc0
> - changed qemu_system_powerdown_register() to call
>   qemu_system_shutdown_request() if qemu_system_shutdown() is called before
>   registering.
> 
> Changes from v4:
> - fix version number.
> - rebased anthony's staging tree whose latest change set is
>   62969268f876c547ee64da6d60e0f363e0f1df75
> 
> Changes from v3:
> - move qemu_system_powerdown() in vl.c and more generic
>   following the comment by Marcelo Tosatti <mtosatti@redhat.com>
>   acpi.c: make qemu_system_powerdown() piix independent.
> - define cmos_set_s3_resume_init() and cmos_set_s3_resume() in pc.c
>   even if TARGET_I386 isn't defined following th ecommit by
>   Paolo Bonzini <bonzini@gnu.org>
>   pc.c: remove a global variable, RTCState *rtc_state.
> - minor compilation fixes
> 
> Changes from v2:
> - clean up pc_pci_device_init() not to use unnecessary braces.
> 
> Changes from v1:
> - make patches full bisectable
> - typo s/allocte/allocate/
> - some minor fixes
> - dropped a merged patch
> 
> 
> Isaku Yamahata (61):
>   acpi: split out pc smbus routines from acpi.c into pc_smbus.c
>   acpi: split out apm register emulation from acpi.c
>   acpi: add acpi constants from linux header files and use them.
>   acpi: split acpi.c into the common part and the piix4 part.
>   acpi_piix4: remove unused variable in get_pmsts().
>   pc: fix file stream leak in multiboot loader.
>   pc, i440fx: Make smm enable/disable function i440fx independent.
>   pc: make an unnecessary global variable, pit, local.
>   pc: remove a global variable, floppy_controller.
>   pc: remove a global variable, RTCState *rtc_state.
>   pc: introduce a function to allocate cpu irq.
>   pc: make pc_init1() not refer ferr_irq directly.
>   pc: split out cpu initialization from pc_init1() into pc_cpus_init().
>   pc: split out memory allocation from pc_init1() into pc_memory_init()
>   pc: split out vga initialization from pc_init1() into pc_vga_init().
>   pc: split out basic device init from pc_init1() into
>     pc_basic_device_init()
>   pc: split out pci device init from pc_init1() into
>     pc_pci_device_init()
>   pc: split out piix specific part from pc.c into pc_piix.c
>   pc_piix: initialize ioapic before use.
>   pci: fix PCI_DPRINTF() wrt variadic macro.
>   pci: introduce constant PCI_NUM_PINS for the number of interrupt
>     pins, 4.
>   pci: use appropriate PRIs in PCI_DPRINTF().
>   pci: use PCI_SLOT() and PCI_FUNC().
>   pci: define a constant to represent a unmapped bar and use it.
>   pci: use uint64_t for bar addr and size instead of uint32_t.
>   pci: 64bit bar support.
>   pci: clean up of pci_update_mappings()
>   pci: factor out while(bus) bus->next loop logic into
>     pci_find_bus_from().
>   pci: factor out the logic to get pci device from address.
>   pci_host.h: split non-inline static function in pci_host.h into
>     pci_host_c.h
>   pci: pcie host and mmcfg support.
>   pci: helper functions to access PCIDevice::config
>   pci: use the symbolic constant, PCI_ROM_ADDRESS_ENABLE instead of 1.
>   pci: introduce pci_swizzle_map_irq_fn() for interrupt pin swizzle.
>   piix_pci: use pci_swizzle_map_irq_fn().
>   pci: use QLIST_ macro instead of direct list manipulation.
>   pci: add helper function for pci config write function to check
>     address.
>   pci: fix pci_default_write_config()
>   pci: factor out config update logic.
>   pci: use qdev to get parent bus with PCIBus.
>   pci: make bar update function aware of pci bridge.
>   pci/brdige: qdevfy and initialize secondary bus and subordinate bus.
>   pci: add helper function to initialize wmask.
>   pci: initialize wmask according to pci header type.
>   pci/monitor: print out bridge's filtering values and so on.
>   pci/bridge: implement intel 82801ba bridge.
>   pci.h: add more status constats.
>   pci id: add subclass codes for serial device.
>   pci hot add: pass opaque argument to callback.
>   pci hotadd, acpi_piix4: remove global variables.
>   vmstate: add a macro for pointer to struct, VMSTATE_STRUCT_POINTER.
>   pci: add a hook to replace default pci bus instead of 0 bus.
>   pc q35 based chipset emulator
>   pci: add opaque argument to pci_map_irq_fn().
>   ioapic: make ioapic_set_irq() static.
>   ioapic: clean up of  #ifdef DEBUG_IOAPIC.
>   ioapic: add callback when entry is set or ioapic is reset
>   ioapic: make the number of pins configurable.
>   ioapic: make irr accept more than 32 pins.
>   pci: add opaque arg to pci_map_irq_fn.
>   pc_q35: apic mode for pci interrupt routing.
> 
>  Makefile.target                 |    5 +-
>  hw/ac97.c                       |    2 +-
>  hw/acpi.c                       |  736 +--------------------------
>  hw/acpi.h                       |   78 +++
>  hw/acpi_ich9.c                  |  565 ++++++++++++++++++++
>  hw/acpi_ich9.h                  |   57 ++
>  hw/acpi_piix4.c                 |  582 +++++++++++++++++++++
>  hw/apb_pci.c                    |   16 +-
>  hw/cirrus_vga.c                 |    8 +-
>  hw/e1000.c                      |   12 +-
>  hw/eepro100.c                   |   10 +-
>  hw/es1370.c                     |    2 +-
>  hw/grackle_pci.c                |    4 +-
>  hw/gt64xxx.c                    |    4 +-
>  hw/hw.h                         |   42 ++
>  hw/ide/pci.c                    |    4 +-
>  hw/ioapic.c                     |  137 ++++--
>  hw/lsi53c895a.c                 |    6 +-
>  hw/macio.c                      |    2 +-
>  hw/msix.c                       |    2 +-
>  hw/msix.h                       |    2 +-
>  hw/ne2000.c                     |    2 +-
>  hw/openpic.c                    |    2 +-
>  hw/pc.c                         |  344 ++++---------
>  hw/pc.h                         |   48 ++-
>  hw/pc_apm.c                     |   89 ++++
>  hw/pc_apm.h                     |   43 ++
>  hw/pc_piix.c                    |  241 +++++++++
>  hw/pc_q35.c                     |  220 ++++++++
>  hw/pc_smbus.c                   |  178 +++++++
>  hw/pc_smbus.h                   |   43 ++
>  hw/pci-hotplug.c                |    7 +-
>  hw/pci.c                        | 1102 +++++++++++++++++++++++++++++++--------
>  hw/pci.h                        |  261 +++++++++-
>  hw/pci_bridge.c                 |   63 +++
>  hw/pci_bridge.h                 |   38 ++
>  hw/pci_host.h                   |  110 +---
>  hw/{pci_host.h => pci_host_c.h} |    8 +-
>  hw/pci_ids.h                    |   28 +
>  hw/pcnet.c                      |    9 +-
>  hw/piix_pci.c                   |   14 +-
>  hw/ppc4xx_pci.c                 |    4 +-
>  hw/ppce500_pci.c                |    4 +-
>  hw/prep_pci.c                   |    4 +-
>  hw/q35.c                        |  784 ++++++++++++++++++++++++++++
>  hw/q35.h                        |  232 ++++++++
>  hw/q35_smbus.c                  |  150 ++++++
>  hw/r2d.c                        |    2 +-
>  hw/rtl8139.c                    |    4 +-
>  hw/sun4u.c                      |    2 +-
>  hw/unin_pci.c                   |    4 +-
>  hw/usb-ohci.c                   |    2 +-
>  hw/usb-uhci.c                   |    2 +-
>  hw/versatile_pci.c              |    2 +-
>  hw/vga-pci.c                    |    2 +-
>  hw/virtio-pci.c                 |    2 +-
>  hw/vmware_vga.c                 |    4 +-
>  hw/wdt_i6300esb.c               |    5 +-
>  sysemu.h                        |    4 +-
>  59 files changed, 4932 insertions(+), 1407 deletions(-)
>  create mode 100644 hw/acpi.h
>  create mode 100644 hw/acpi_ich9.c
>  create mode 100644 hw/acpi_ich9.h
>  create mode 100644 hw/acpi_piix4.c
>  create mode 100644 hw/pc_apm.c
>  create mode 100644 hw/pc_apm.h
>  create mode 100644 hw/pc_piix.c
>  create mode 100644 hw/pc_q35.c
>  create mode 100644 hw/pc_smbus.c
>  create mode 100644 hw/pc_smbus.h
>  create mode 100644 hw/pci_bridge.c
>  create mode 100644 hw/pci_bridge.h
>  copy hw/{pci_host.h => pci_host_c.h} (96%)
>  create mode 100644 hw/q35.c
>  create mode 100644 hw/q35.h
>  create mode 100644 hw/q35_smbus.c
> 
>