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

kconfig: add CONFIG_MSI_NONBROKEN

2019-03-18 09:39:57 +01:00

meson.build

meson: convert hw/pci

2020-08-21 06:30:28 -04:00

msi.c

pci/msi: export msi_is_masked()

2019-02-05 10:58:33 -05:00

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

Include migration/vmstate.h less

2019-08-16 13:31:52 +02:00

pcie_host.c

Include hw/hw.h exactly where needed

2019-08-16 13:31:52 +02:00

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

pci: Convert shpc_init() to Error

2017-07-03 22:29:49 +03:00

trace-events

trace-events: Shorten file names in comments

2019-03-22 16:18:07 +00:00

trace.h

trace: switch position of headers to what Meson requires

2020-08-21 06:18:24 -04:00