Xiong Zhang 85abeff27f vfio: Implement bar mappable ... if device bar is mappable, map bar's gpa to hpa in EPT, guest vcpu could access this bar directly through EPT without trapping. This could improve performance. vm.add_mmio_memory could help do this, here vfio_pci send RegisterMmapMemory request through vm_control socket to do this. BUG=chromium:992270 TEST=none Change-Id: I3b4274372f7dcd32e18084d55f037b6fe45ed422 Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1581147 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>		2019-12-06 08:47:29 +00:00
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src	vfio: Implement bar mappable	2019-12-06 08:47:29 +00:00
Cargo.toml