mirror of https://gitee.com/openkylin/linux.git
57bd1905b2
The arch_apei_get_mem_attributes() function is used to set the page protection type for ACPI physical addresses. When SME is active, the associated protection type cannot have the encryption mask set since the ACPI tables live in un-encrypted memory - the kernel will see corrupted data. To fix this, create a new protection type, PAGE_KERNEL_NOENC, that is a 'no encryption' version of PAGE_KERNEL, and return that from arch_apei_get_mem_attributes(). Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Dave Young <dyoung@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/e1cb9395b2f061cd96f1e59c3cbbe5ff5d4ec26e.1501186516.git.thomas.lendacky@amd.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| firmware | ||
| fs | ||
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| .cocciconfig | ||
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README
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.