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authorSheng Yang <sheng@linux.intel.com>2009-04-27 20:35:43 +0800
committerAvi Kivity <avi@redhat.com>2009-06-10 11:48:50 +0300
commit522c68c4416de3cd3e11a9ff10d58e776a69ae1e (patch)
tree62940e35988f5e2a52df10276882ec64518ee369 /drivers/atm/nicstarmac.c
parent4b12f0de33a64dfc624b2480f55b674f7fa23ef2 (diff)
KVM: Enable snooping control for supported hardware
Memory aliases with different memory type is a problem for guest. For the guest without assigned device, the memory type of guest memory would always been the same as host(WB); but for the assigned device, some part of memory may be used as DMA and then set to uncacheable memory type(UC/WC), which would be a conflict of host memory type then be a potential issue. Snooping control can guarantee the cache correctness of memory go through the DMA engine of VT-d. [avi: fix build on ia64] Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'drivers/atm/nicstarmac.c')
0 files changed, 0 insertions, 0 deletions