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With EPT A/D enabled, processor access to L2 guest paging structures will result in a write violation. When this happens, write the GUEST_PHYSICAL_ADDRESS to the pml buffer provided by L1 if the access is write and the dirty bit is being set. This patch also adds necessary checks during VMEntry if L1 has enabled PML. If the PML index overflows, we change the exit reason and run L1 to simulate a PML full event. Signed-off-by: Bandan Das <bsd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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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.