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xemu/hw/pci
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Gao Shiyuan 55fa4be6f7 virtio-pci: fix memory_region_find for VirtIOPCIRegion's MR 
As shown below, if a virtio PCI device is attached under a pci-bridge, the MR
of VirtIOPCIRegion does not belong to any address space. So memory_region_find
cannot be used to search for this MR.

Introduce the virtio-pci and pci_bridge address spaces to solve this problem.

Before:
memory-region: pci_bridge_pci
  0000000000000000-ffffffffffffffff (prio 0, i/o): pci_bridge_pci
    00000000fe840000-00000000fe840fff (prio 1, i/o): virtio-net-pci-msix
      00000000fe840000-00000000fe84003f (prio 0, i/o): msix-table
      00000000fe840800-00000000fe840807 (prio 0, i/o): msix-pba
    0000380000000000-0000380000003fff (prio 1, i/o): virtio-pci
      0000380000000000-0000380000000fff (prio 0, i/o): virtio-pci-common-virtio-net
      0000380000001000-0000380000001fff (prio 0, i/o): virtio-pci-isr-virtio-net
      0000380000002000-0000380000002fff (prio 0, i/o): virtio-pci-device-virtio-net
      0000380000003000-0000380000003fff (prio 0, i/o): virtio-pci-notify-virtio-net

After:
address-space: virtio-pci-cfg-mem-as
  0000380000000000-0000380000003fff (prio 1, i/o): virtio-pci
    0000380000000000-0000380000000fff (prio 0, i/o): virtio-pci-common-virtio-net
    0000380000001000-0000380000001fff (prio 0, i/o): virtio-pci-isr-virtio-net
    0000380000002000-0000380000002fff (prio 0, i/o): virtio-pci-device-virtio-net
    0000380000003000-0000380000003fff (prio 0, i/o): virtio-pci-notify-virtio-net

address-space: pci_bridge_pci_mem
  0000000000000000-ffffffffffffffff (prio 0, i/o): pci_bridge_pci
    00000000fe840000-00000000fe840fff (prio 1, i/o): virtio-net-pci-msix
      00000000fe840000-00000000fe84003f (prio 0, i/o): msix-table
      00000000fe840800-00000000fe840807 (prio 0, i/o): msix-pba
    0000380000000000-0000380000003fff (prio 1, i/o): virtio-pci
      0000380000000000-0000380000000fff (prio 0, i/o): virtio-pci-common-virtio-net
      0000380000001000-0000380000001fff (prio 0, i/o): virtio-pci-isr-virtio-net
      0000380000002000-0000380000002fff (prio 0, i/o): virtio-pci-device-virtio-net
      0000380000003000-0000380000003fff (prio 0, i/o): virtio-pci-notify-virtio-net

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2576
Fixes: ffa8a3e3b2 ("virtio-pci: Add lookup subregion of VirtIOPCIRegion MR")
Co-developed-by: Zuo Boqun <zuoboqun@baidu.com>
Signed-off-by: Zuo Boqun <zuoboqun@baidu.com>
Co-developed-by: Wang Liang <wangliang44@baidu.com>
Signed-off-by: Wang Liang <wangliang44@baidu.com>
Signed-off-by: Gao Shiyuan <gaoshiyuan@baidu.com>
Message-Id: <20241030131324.34144-1-gaoshiyuan@baidu.com>
Tested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 		2024-11-04 16:03:24 -05:00
..
Kconfig kconfig: Add PCIe devices to s390x machines 2023-07-14 11:10:57 +02:00
meson.build meson: remove CONFIG_ALL 2023-12-31 09:11:28 +01:00
msi.c hw/pci/msi: Restrict xen_is_pirq_msi() call to Xen 2024-03-09 18:51:45 +01:00
msix.c hw/pci: Constify VMState 2023-12-30 07:38:06 +11:00
pci-hmp-cmds.c hw/pci/pci-hmp-cmds: Avoid displaying bogus size in 'info pci' 2024-09-11 09:46:04 -04:00
pci-internal.h hw/pci/aer: Make PCIE AER error injection facility available for other emulation to use. 2023-03-07 12:39:00 -05:00
pci-qmp-cmds.c pci: Move QMP commands to new hw/pci/pci-qmp-cmds.c 2022-12-19 16:15:17 +01:00
pci-stub.c hw/pci: remove return after g_assert_not_reached() 2024-09-24 13:53:35 +02:00
pci.c hw/pci: Add a busnr property to pci_props and use for acpi/gi 2024-11-04 16:03:24 -05:00
pci_bridge.c virtio-pci: fix memory_region_find for VirtIOPCIRegion's MR 2024-11-04 16:03:24 -05:00
pci_host.c Revert "hw/pci: Rename has_power to enabled" 2024-08-01 04:32:00 -04:00
pcie.c hw/pcie: Provide a utility function for control of EP / SW USP link 2024-11-04 16:03:24 -05:00
pcie_aer.c hw/pci: Constify VMState 2023-12-30 07:38:06 +11:00
pcie_doe.c
…
pcie_host.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
pcie_port.c hw/pci: Remove unused pcie_chassis_find_slot 2024-10-03 17:26:06 +03:00
pcie_sriov.c Revert "pcie_sriov: Do not manually unrealize" 2024-08-01 04:32:00 -04:00
shpc.c hw/pci: add some convenient trace-events for pcie and shpc hotplug 2024-03-11 22:09:42 +01:00
slotid_cap.c include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
trace-events Revert "pcie_sriov: Remove num_vfs from PCIESriovPF" 2024-08-01 04:32:00 -04:00
trace.h
…