Jeffrey Hugo e744aad0c4 PCI: hv: Fix interrupt mapping for multi-MSI ... commit a2bad844a6 upstream. According to Dexuan, the hypervisor folks beleive that multi-msi allocations are not correct. compose_msi_msg() will allocate multi-msi one by one. However, multi-msi is a block of related MSIs, with alignment requirements. In order for the hypervisor to allocate properly aligned and consecutive entries in the IOMMU Interrupt Remapping Table, there should be a single mapping request that requests all of the multi-msi vectors in one shot. Dexuan suggests detecting the multi-msi case and composing a single request related to the first MSI. Then for the other MSIs in the same block, use the cached information. This appears to be viable, so do it. 5.10 backport - add hv_msi_get_int_vector helper function. Fixed merge conflict due to delivery_mode name change (APIC_DELIVERY_MODE_FIXED is the value given to dest_Fixed). Removed unused variable in hv_compose_msi_msg. Fixed reference to msi_desc->pci to point to the same is_msix variable. Removed changes to compose_msi_req_v3 since it doesn't exist yet. Suggested-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Tested-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1652282599-21643-1-git-send-email-quic_jhugo@quicinc.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Signed-off-by: Carl Vanderlip <quic_carlv@quicinc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-07-29 17:19:10 +02:00
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cadence	PCI: cadence: Fix find_first_zero_bit() limit	2022-06-09 10:21:13 +02:00
dwc	PCI: qcom: Fix pipe clock imbalance	2022-06-14 18:32:47 +02:00
mobiveil
Kconfig
Makefile
pci-aardvark.c	PCI: aardvark: Fix reading MSI interrupt number	2022-05-12 12:25:46 +02:00
pci-ftpci100.c
pci-host-common.c
pci-host-generic.c
pci-hyperv-intf.c
pci-hyperv.c	PCI: hv: Fix interrupt mapping for multi-MSI	2022-07-29 17:19:10 +02:00
pci-loongson.c
pci-mvebu.c	PCI: pci-bridge-emul: Correctly set PCIe capabilities	2022-01-27 10:54:26 +01:00
pci-rcar-gen2.c
pci-tegra.c
pci-thunder-ecam.c
pci-thunder-pem.c
pci-v3-semi.c
pci-versatile.c
pci-xgene-msi.c
pci-xgene.c	PCI: xgene: Revert "PCI: xgene: Use inbound resources for setup"	2022-04-08 14:40:45 +02:00
pcie-altera-msi.c
pcie-altera.c
pcie-brcmstb.c
pcie-hisi-error.c
pcie-iproc-bcma.c
pcie-iproc-msi.c
pcie-iproc-platform.c
pcie-iproc.c
pcie-iproc.h
pcie-mediatek.c
pcie-rcar-ep.c
pcie-rcar-host.c
pcie-rcar.c
pcie-rcar.h
pcie-rockchip-ep.c	PCI: rockchip: Fix find_first_zero_bit() limit	2022-06-09 10:21:13 +02:00
pcie-rockchip-host.c
pcie-rockchip.c
pcie-rockchip.h
pcie-tango.c
pcie-xilinx-cpm.c
pcie-xilinx-nwl.c
pcie-xilinx.c
vmd.c