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SPARC M7 processor introduces a new feature - Application Data Integrity (ADI). ADI allows MMU to catch rogue accesses to memory. When a rogue access occurs, MMU blocks the access and raises an exception. In response to the exception, kernel sends the offending task a SIGSEGV with si_code that indicates the nature of exception. This patch adds three new signal codes specific to ADI feature: 1. ADI is not enabled for the address and task attempted to access memory using ADI 2. Task attempted to access memory using wrong ADI tag and caused a deferred exception. 3. Task attempted to access memory using wrong ADI tag and caused a precise exception. Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com> Cc: Khalid Aziz <khalid@gonehiking.org> Reviewed-by: Anthony Yznaga <anthony.yznaga@oracle.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.