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| author | Alex Williamson | 2013-12-06 19:16:23 +0100 |
|---|---|---|
| committer | Alex Williamson | 2013-12-06 19:16:23 +0100 |
| commit | 96eeeba0db38b856eb2cae0e4a2a620d8d65771a (patch) | |
| tree | c4e9f3db14104dd10a3a9f9342c4b55dbbbc9bd2 /include/exec | |
| parent | vfio-pci: Make use of new KVM-VFIO device (diff) | |
| download | qemu-96eeeba0db38b856eb2cae0e4a2a620d8d65771a.tar.gz qemu-96eeeba0db38b856eb2cae0e4a2a620d8d65771a.tar.xz qemu-96eeeba0db38b856eb2cae0e4a2a620d8d65771a.zip | |
vfio-pci: Fix Nvidia MSI ACK through 0x88000 quirk
When MSI is enabled on Nvidia GeForce cards the driver seems to
acknowledge the interrupt by writing a 0xff byte to the MSI capability
ID register using the PCI config space mirror at offset 0x88000 from
BAR0. Without this, the device will only fire a single interrupt.
VFIO handles the PCI capability ID/next registers as virtual w/o write
support, so any write through config space is currently dropped. Add
a check for this and allow the write through the BAR window. The
registers are read-only anyway.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include/exec')
0 files changed, 0 insertions, 0 deletions