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There're some PCI devices need special handler for vendor-specical feature or capability CFG access. The Intel GPU is one of them. In order to keep the ACRN-HV clean, we want to throw the qurik part of PCI CFG asccess to DM to handle. To achieve this, we implement per-device policy base on whether it needs quirk handler for a VM: each device could configure as "quirk pass through device" or not. For a "quirk pass through device", we will handle the general part in HV and the quirk part in DM. For a non "quirk pass through device", we will handle all the part in HV. Tracked-On: #4371 Signed-off-by: Li Fei1 <fei1.li@intel.com> |
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acrn_common.h | ||
acrn_hv_defs.h |