Dr. David Alan Gilbert c8557f1b48 pcie_root_port: Disable ACS on older machines ...

ACS got added in 4.0 unconditionally,  that broke older<->4.0 migration
where there was a PCIe root port.
Fix this by turning it off for 3.1 and older machines; note this
fixes compatibility for older QEMUs but breaks compatibility with 4.0
for older machine types.

    machine type    source qemu   dest qemu
       3.1             3.1           4.0        broken
       3.1             3.1           4.1rc2     broken
       3.1             3.1           4.1+this   OK ++
       3.1             4.0           4.1rc2     OK
       3.1             4.0           4.1+this   broken --
       4.0             4.0           4.1rc2     OK
       4.0             4.0           4.1+this   OK

So we gain and lose; the consensus seems to be treat this as a
fix for older machine types.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190730093719.12958-3-dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2019-07-30 12:07:07 -04:00

..

bus.c

hw/core/bus.c: Only the main system bus can have no parent

2019-06-13 15:14:03 +01:00

empty_slot.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

fw-path-provider.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

generic-loader.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

hotplug.c

call HotplugHandler->plug() as the last step in device realization

2018-10-19 13:44:12 +02:00

irq.c

Include qemu-common.h exactly where needed

2019-06-12 13:20:20 +02:00

Kconfig

kconfig: introduce kconfig files

2019-03-07 21:45:53 +01:00

loader-fit.c

loader-fit: Wean off error_printf()

2019-04-17 21:21:49 +02:00

loader.c

Include qemu-common.h exactly where needed

2019-06-12 13:20:20 +02:00

machine-hmp-cmds.c

i386/cpu: Consolidate die-id validity in smp context

2019-07-05 17:08:03 -03:00

machine-qmp-cmds.c

qmp: Add deprecation information to query-machines

2019-07-05 17:08:04 -03:00

machine.c

pcie_root_port: Disable ACS on older machines

2019-07-30 12:07:07 -04:00

Makefile.objs

qdev: add qdev_add_vm_change_state_handler()

2019-07-08 16:00:26 +02:00

nmi.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

null-machine.c

Include qemu-common.h exactly where needed

2019-06-12 13:20:20 +02:00

numa.c

numa: allow memory-less nodes when using memdev as backend

2019-07-05 17:12:45 -03:00

or-irq.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

platform-bus.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

ptimer.c

ptimer: Add TRIGGER_ONLY_ON_DECREMENT policy option

2018-07-09 14:51:34 +01:00

qdev-fw.c

linux-user: remove nmi.c and fw-path-provider.c

2018-01-23 14:20:52 +01:00

qdev-properties-system.c

block: Add qdev_prop_drive_iothread property type

2019-06-04 15:22:22 +02:00

qdev-properties.c

qemu-common: Move qemu_isalnum() etc. to qemu/ctype.h

2019-06-11 20:22:09 +02:00

qdev.c

qapi: Split qom.json and qdev.json off misc.json

2019-07-02 07:19:57 +02:00

register.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

reset.c

qemu/queue.h: leave head structs anonymous unless necessary

2019-01-11 15:46:55 +01:00

split-irq.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

stream.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

sysbus.c

Include qemu/module.h where needed, drop it from qemu-common.h

2019-06-12 13:18:33 +02:00

uboot_image.h

Support u-boot noload images for arm as used by, NetBSD/evbarm GENERIC kernel.

2019-01-07 15:46:20 +00:00

vm-change-state-handler.c

qdev: add qdev_add_vm_change_state_handler()

2019-07-08 16:00:26 +02:00