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[ Upstream commit95953034fb] The platform informs via CPUID.(EAX=0x10, ECX=res#):EBX[31:0] (valid res# are only 1 for L3 and 2 for L2) which unit of the allocation may be used by other entities in the platform. This information is valid whether CDP (Code and Data Prioritization) is enabled or not. Ensure that the bitmask of shareable resource is initialized when CDP is enabled. Fixes:0dd2d7494c("x86/intel_rdt: Show bitmask of shareable resource with other executing units" Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Vikas Shivappa <vikas.shivappa@linux.intel.com> Acked-by: Tony Luck <tony.luck@intel.com> Link: https://lkml.kernel.org/r/815747bddc820ca221a8924edaf4d1a7324547e4.1508490116.git.reinette.chatre@intel.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.