linux/drivers/pci/controller
Haiyang Zhang be700103ef PCI: hv: Detect and fix Hyper-V PCI domain number collision
Currently in Azure cloud, for passthrough devices, the host sets the
device instance ID's bytes 8 - 15 to a value derived from the host HWID,
which is the same on all devices in a VM. So, the device instance ID's
bytes 8 and 9 provided by the host are no longer unique. This affects
all Azure hosts since July 2018, and can cause device passthrough to VMs
to fail because the bytes 8 and 9 are used as PCI domain number.
Collision of domain numbers will cause the second device with the same
domain number fail to load.

In the cases of collision, we will detect and find another number that is
not in use.

Suggested-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Sasha Levin <sashal@kernel.org>
2019-08-21 08:15:19 +01:00
..
dwc Merge branch 'pci/trivial' 2019-07-12 17:08:41 -05:00
Kconfig PCI: altera-msi: Allow building as module 2019-05-30 15:34:54 +01:00
Makefile PCI: mobiveil: Add Kconfig/Makefile entries 2018-07-30 14:30:16 +01:00
pci-aardvark.c PCI: Fix typos and whitespace errors 2019-07-09 07:24:53 -05:00
pci-ftpci100.c PCI: faraday: Fix I/O space page leak 2018-07-18 17:01:14 -05:00
pci-host-common.c PCI: Remove unnecessary check of device_type == pci 2018-09-25 09:40:03 +01:00
pci-host-generic.c PCI: Fix comment typos 2019-04-13 11:17:15 -05:00
pci-hyperv.c PCI: hv: Detect and fix Hyper-V PCI domain number collision 2019-08-21 08:15:19 +01:00
pci-mvebu.c PCI: pci-bridge-emul: Extend pci_bridge_emul_init() with flags 2019-02-22 10:51:14 +00:00
pci-rcar-gen2.c
pci-tegra.c PCI: tegra: Enable Relaxed Ordering only for Tegra20 & Tegra30 2019-07-05 13:59:59 +01:00
pci-thunder-ecam.c
pci-thunder-pem.c
pci-v3-semi.c PCI: v3-semi: Fix I/O space page leak 2018-07-18 17:02:13 -05:00
pci-versatile.c PCI: versatile: Fix I/O space page leak 2018-07-18 17:00:11 -05:00
pci-xgene-msi.c
pci-xgene.c PCI: xgene: Fix I/O space page leak 2018-07-18 16:59:40 -05:00
pcie-altera-msi.c PCI: altera-msi: Allow building as module 2019-05-30 15:34:54 +01:00
pcie-altera.c PCI: altera: Fix configuration type based on secondary number 2019-06-17 12:22:25 +01:00
pcie-cadence-ep.c PCI: cadence: Remove pci_epf_linkup() from Cadence EP driver 2019-02-15 10:02:38 +00:00
pcie-cadence-host.c PCI: Remove unnecessary check of device_type == pci 2018-09-25 09:40:03 +01:00
pcie-cadence.c pci-v4.20-changes 2018-10-25 06:50:48 -07:00
pcie-cadence.h PCI: cadence: Add Power Management ops for host and EP 2018-07-12 12:44:14 +01:00
pcie-iproc-bcma.c
pcie-iproc-msi.c PCI: Fix comment typos 2019-04-13 11:17:15 -05:00
pcie-iproc-platform.c PCI: Fix typos and whitespace errors 2019-07-09 07:24:53 -05:00
pcie-iproc.c PCI: Fix typos and whitespace errors 2019-07-09 07:24:53 -05:00
pcie-iproc.h PCI: iproc: Reject unconfigured physical functions from PAXC 2018-07-13 11:56:55 +01:00
pcie-mediatek.c Merge branch 'remotes/lorenzo/pci/misc' 2019-05-13 18:34:44 -05:00
pcie-mobiveil.c PCI: mobiveil: Fix INTx interrupt clearing in mobiveil_pcie_isr() 2019-07-08 12:39:09 +01:00
pcie-rcar.c Merge branch 'remotes/lorenzo/pci/rcar' 2019-05-13 18:34:42 -05:00
pcie-rockchip-ep.c PCI: rockchip: Fix rockchip_pcie_ep_assert_intx() bitwise operations 2019-04-15 10:39:26 +01:00
pcie-rockchip-host.c PCI: rockchip: Fix a leaked reference by adding missing of_node_put() 2019-04-01 10:42:24 +01:00
pcie-rockchip.c
pcie-rockchip.h
pcie-tango.c
pcie-xilinx-nwl.c PCI: xilinx-nwl: Fix Multi MSI data programming 2019-06-26 10:56:51 +01:00
pcie-xilinx.c PCI: xilinx: Check for __get_free_pages() failure 2019-03-29 16:28:20 +00:00
vmd.c PCI: Fix typos and whitespace errors 2019-07-09 07:24:53 -05:00