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qemu-e2k/hw/pci-host
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Hervé Poussineau 175f099b30 pam: partly fix write-only mode 
In write-only mode, writes are forwarded to RAM, while reads should not be
handled (ie should return 0xff).
Assume that in this mode, no read access is ever done, as they shouldn't
give any sensible result.

So, in write-only mode, alias PAM region to RAM, instead of PCI memory
(which can even be mapped to some device!)

This fixes Award BIOS, which use this mode to shadow system BIOS and video BIOS.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-09 21:09:38 +02:00
..
apb.c pci-host: Consistently set cannot_instantiate_with_device_add_yet 2013-12-23 00:27:23 +01:00
bonito.c pci-host: Consistently set cannot_instantiate_with_device_add_yet 2013-12-23 00:27:23 +01:00
grackle.c pci-host: Consistently set cannot_instantiate_with_device_add_yet 2013-12-23 00:27:23 +01:00
Makefile.objs dec.c - move to pci-bridge 2013-06-02 18:13:37 +03:00
pam.c pam: partly fix write-only mode 2014-03-09 21:09:38 +02:00
piix.c qdev:pci: refactor PCIDevice to use generic "hotpluggable" property 2014-02-10 10:26:56 +02:00
ppce500.c pci-host: Consistently set cannot_instantiate_with_device_add_yet 2013-12-23 00:27:23 +01:00
prep.c raven: Use constant PCI_NUM_PINS instead of 4 2014-02-09 15:49:01 +01:00
q35.c pci-host: Consistently set cannot_instantiate_with_device_add_yet 2013-12-23 00:27:23 +01:00
uninorth.c pci-host: Consistently set cannot_instantiate_with_device_add_yet 2013-12-23 00:27:23 +01:00
versatile.c pci-host: Consistently set cannot_instantiate_with_device_add_yet 2013-12-23 00:27:23 +01:00