Igor Mammedov 99d09dd328 pcihp: make pci_read() mmio calback compatible with legacy ACPI hotplug
due to recent change introduced by:
"pcihp: reduce number of device check events"

'up' field is cleared right after it's read.
This is incompatible with legacy BIOS ACPI code
where PCNF ACPI method reads this field 32 times.

To make pci_read mmio callback compatible with legacy
'up' behavior, pcihp code will need to know in which
mode it runs add 'legacy_piix' field to AcpiPciHpState
structure and alter register behavior accordingly.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-02-05 16:55:49 +02:00
2014-01-31 11:13:08 +00:00
2014-02-01 21:08:06 +00:00

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team
Description
QEMU With E2K User Support
Readme 459 MiB
Languages
C 83.1%
C++ 6.3%
Python 3.2%
Dylan 2.8%
Shell 1.6%
Other 2.8%