Following on from the earlier thread "Implement "non 100% native mode"
in via-ide", here is an updated patchset based upon the test cases
sent to me off-list.
The VIA IDE controller is similar to early versions of the PIIX
controller in that the primary and secondary IDE channels are hardwired
to IRQs 14 and 15 respectively. Guest OSs typically handle this by
either switching the controller to legacy mode, or using native mode and
using a combination of PCI device/vendor ID and/or checking various
registers in PCI configuration space to detect this condition and apply
a special fixed IRQ 14/15 routing.
This patchset effectively updates the VIA IDE PCI device to follow the
behaviour in the datasheet in two ways: fixing some PCI configuration
space register defaults and behaviours, and always using legacy IRQ 14/15
routing, and once applied allows all our known test images to boot
correctly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
BALATON Zoltan (2):
ide/via: Get rid of via_ide_init()
pci: Honour wmask when resetting PCI_INTERRUPT_LINE
Mark Cave-Ayland (5):
via-ide: move registration of VMStateDescription to DeviceClass
via-ide: ensure that PCI_INTERRUPT_LINE is hard-wired to its default
value
via-ide: initialise IDE controller in legacy mode
via-ide: allow guests to write to PCI_CLASS_PROG
via-ide: always use legacy IRQ 14/15 routing
hw/ide/via.c | 21 +++++----------------
hw/mips/mips_fulong2e.c | 5 ++++-
hw/pci/pci.c | 5 ++++-
include/hw/ide.h | 1 -
4 files changed, 13 insertions(+), 19 deletions(-)
--
2.20.1
