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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-09-11 16:56:06 +1000 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2017-09-13 10:41:39 +0200 |
| commit | 6100dda70d84be83d131c3b35cb9c00f7b07db15 (patch) | |
| tree | 5749e849bdb788e720fd241954c4b6abc162e2ae /hw/ide/pci.c | |
| parent | 619c200f6ce2f44fbc8a5732174530c3b4782aab (diff) | |
| download | focaccia-qemu-6100dda70d84be83d131c3b35cb9c00f7b07db15.tar.gz focaccia-qemu-6100dda70d84be83d131c3b35cb9c00f7b07db15.zip | |
xhci: Avoid DMA when ERSTBA is set to zero
The existing XHCI code reads the Event Ring Segment Table Base Address Register (ERSTBA) every time when it is changed. However zero is its default state so one would think that zero there means it is not in use. This adds a check for ERSTBA in addition to the existing check for the Event Ring Segment Table Size Register (ERSTSZ). Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Message-id: 20170911065606.40600-1-aik@ozlabs.ru Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/ide/pci.c')
0 files changed, 0 insertions, 0 deletions