Jason Wang d83f46d189 virtio-pci: compat page aligned ATS ... Commit 4c70875372 ("pci: advertise a page aligned ATS") advertises the page aligned via ATS capability (RO) to unbrek recent Linux IOMMU drivers since 5.2. But it forgot the compat the capability which breaks the migration from old machine type: (qemu) qemu-kvm: get_pci_config_device: Bad config data: i=0x104 read: 0 device: 20 cmask: ff wmask: 0 w1cmask:0 This patch introduces a new parameter "x-ats-page-aligned" for virtio-pci device and turns it on for machine type which is newer than 5.1. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Peter Xu <peterx@redhat.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: qemu-stable@nongnu.org Fixes: 4c70875372 ("pci: advertise a page aligned ATS") Signed-off-by: Jason Wang <jasowang@redhat.com> Message-Id: <20210406040330.11306-1-jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2021-04-06 07:11:36 -04:00
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msi.h
msix.h
pci_bridge.h	Use OBJECT_DECLARE_SIMPLE_TYPE when possible	2020-09-18 14:12:32 -04:00
pci_bus.h	pci: Move PCIBusClass typedef to pci.h	2020-08-27 14:04:54 -04:00
pci_host.h	Use OBJECT_DECLARE_TYPE when possible	2020-09-18 14:12:32 -04:00
pci_ids.h	vt82c686: Make vt82c686b-pm an abstract base class and add vt8231-pm based on it	2021-02-21 19:42:34 +01:00
pci_regs.h
pci.h	pci: introduce acpi-index property for PCI device	2021-03-22 18:58:19 -04:00
pcie_aer.h
pcie_host.h	Use OBJECT_DECLARE_SIMPLE_TYPE when possible	2020-09-18 14:12:32 -04:00
pcie_port.h	Use OBJECT_DECLARE_SIMPLE_TYPE when possible	2020-09-18 14:12:32 -04:00
pcie_regs.h
pcie.h	virtio-pci: compat page aligned ATS	2021-04-06 07:11:36 -04:00
shpc.h
slotid_cap.h