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qemu/include/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
..
msi.h hw/xen: Support MSI mapping to PIRQ 2023-03-01 09:09:22 +00:00
msix.h msix: Assert that specified vector is in range 2022-11-07 14:08:17 -05:00
pci.h pci-ids.rst: add Red Hat pci-id for RISC-V IOMMU device 2024-10-31 13:51:24 +10:00
pci_bridge.h virtio-pci: fix memory_region_find for VirtIOPCIRegion's MR 2024-11-04 16:03:24 -05:00
pci_bus.h hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps 2023-11-03 09:20:31 +01:00
pci_device.h softmmu: Expand comments describing max_bounce_buffer_size 2024-11-04 09:22:58 -05:00
pci_host.h hw/pci/pci_host: Introduce PCI_HOST_BYPASS_IOMMU macro 2023-07-10 16:29:17 -04:00
pci_ids.h pci_ids/tulip: Add PCI vendor ID for HP and use it in tulip 2023-10-17 23:13:19 +02:00
pci_regs.h pcie: Add 1.2 version token for the Power Management Capability 2022-03-06 05:08:23 -05:00
pcie.h hw/pcie: Provide a utility function for control of EP / SW USP link 2024-11-04 16:03:24 -05:00
pcie_aer.h pci: remove some types from typedefs.h 2024-05-03 15:47:48 +02:00
pcie_doe.h hw/nvme: Add SPDM over DOE support 2024-07-22 20:15:42 -04:00
pcie_host.h include/hw/pci/pcie_host: Correct PCIE_MMCFG_SIZE_MAX 2022-05-16 16:15:40 -04:00
pcie_port.h hw/pci: Remove unused pcie_chassis_find_slot 2024-10-03 17:26:06 +03:00
pcie_regs.h pcie: Support PCIe Gen5/Gen6 link speeds 2024-03-12 17:56:55 -04:00
pcie_sriov.h Revert "pcie_sriov: Ensure VF function number does not overflow" 2024-08-01 04:32:00 -04:00
shpc.h hw/pci: Constify VMState 2023-12-30 07:38:06 +11:00
slotid_cap.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00