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
..
Kconfig
meson.build	meson: convert hw/pci	2020-08-21 06:30:28 -04:00
msi.c
msix.c	migration: Replace migration's JSON writer by the general one	2020-12-19 10:39:16 +01:00
pci_bridge.c	hw/pci/pci_bridge: Use the IEC binary prefix definitions	2020-06-09 14:18:04 -04:00
pci_host.c	hw/pci-host: save/restore pci host config register	2020-07-27 10:24:39 -04:00
pci-stub.c	qapi: Extract PCI commands to 'pci.json'	2020-09-29 15:41:36 +02:00
pci.c	pci: sprinkle assert in PCI pin number	2021-04-01 12:19:52 -04:00
pcie_aer.c
pcie_host.c
pcie_port.c	pcie_root_port: Add hotplug disabling option	2020-03-08 09:18:29 -04:00
pcie.c	virtio-pci: compat page aligned ATS	2021-04-06 07:11:36 -04:00
shpc.c	pci/shpc: don't push attention button when ejecting powered-off device	2021-01-13 09:06:37 -05:00
slotid_cap.c
trace-events
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00