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When the "i915.enable_gvt=0" is added for SOS kernel boot args, ACRN-DM will fail in course of gvt initialization and errno is returned directly. As the errno defined in linux/errno.h is positive, it will continue the unexpected initialization in ACRN-DM and then the segment fault is triggered. So negative errno is returned in order to terminate the initialization. Tracked-On: #2584 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Reviewed-by: He, Min <min.he@intel.com> Acked-by: Yin Fengwei <fengwei.yin@intel.com>
ACRN Device Model ################# Introduction ============ The ACRN Device Model provides **device sharing** capabilities between the Service OS and Guest OSs. It is a component that is used in conjunction with the `ACRN Hypervisor`_ and this is installed within the Service OS. You can find out more about Project ACRN on the `Project ACRN documentation`_ website. .. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor .. _`Project ACRN documentation`: https://projectacrn.github.io/