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We have implemented delayed ring mmio switch mechanism to reduce unnecessary mmio switch. While the vGPU is being destroyed or detached from VM, we need to force the ring switch to host context. The later deadline is missed. Then it got a chance that word load from VM2 might execute under the ring context of VM1 which was attached to a same vGPU instance. Finally, the GPU is hang. This patch guarantee the two deadline are performed. v2: Remove unused variable 'scheduler' Signed-off-by: Changbin Du <changbin.du@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.