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669c00f099
Add the TSC value to the MCE record only when the MCE being logged is precise, i.e., it is logged as an exception or an MCE-related interrupt. So it doesn't look particularly easy to do without touching/changing a bunch of places. That's why I'm trying tricks first. For example, the mce-apei.c case I'm addressing by setting ->tsc only for errors of panic severity. The idea there is, that, panic errors will have raised an #MC and not polled. And then instead of propagating a flag to mce_setup(), it seems easier/less code to set ->tsc depending on the call sites, i.e., are we polling or are we preparing an MCE record in an exception handler/thresholding interrupt. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Yazen Ghannam <Yazen.Ghannam@amd.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/20170123183514.13356-5-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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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.