wireguard-linux/arch/x86/kernel/cpu/mce/amd.c, branch jd/orphan-parallel

x86/MCE/AMD, EDAC/mce_amd: Remove struct smca_hwid.xec_bitmap

2020-08-20T08:34:38Z

The Extended Error Code Bitmap (xec_bitmap) for a Scalable MCA bank type was intended to be used by the kernel to filter out invalid error codes on a system. However, this is unnecessary after a few product releases because the hardware will only report valid error codes. Thus, there's no need for it with future systems. Remove the xec_bitmap field and all references to it. Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200720145353.43924-1-Yazen.Ghannam@amd.com

Merge branch 'x86/entry' into ras/core

2020-06-11T13:17:57Z

to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow up patches can be applied without creating a horrible merge conflict afterwards.

x86/entry: Convert various system vectors

2020-06-11T13:15:14Z

Convert various system vectors to IDTENTRY_SYSVEC: - Implement the C entry point with DEFINE_IDTENTRY_SYSVEC - Emit the ASM stub with DECLARE_IDTENTRY_SYSVEC - Remove the ASM idtentries in 64-bit - Remove the BUILD_INTERRUPT entries in 32-bit - Remove the old prototypes No functional change. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Acked-by: Andy Lutomirski Link: https://lore.kernel.org/r/20200521202119.464812973@linutronix.de

x86/mce/amd, edac: Remove report_gart_errors

2020-04-14T13:53:46Z

... because no one should be interested in spurious MCEs anyway. Make the filtering unconditional and move it to amd_filter_mce(). Signed-off-by: Borislav Petkov Tested-by: Tony Luck Link: https://lkml.kernel.org/r/20200407163414.18058-2-bp@alien8.de

x86/mce/amd: Make threshold bank setting hotplug robust

2020-04-14T13:50:19Z

Handle the cases when the CPU goes offline before the bank setting/reading happens. [ bp: Write commit message. ] Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200403161943.1458-8-bp@alien8.de

x86/mce/amd: Cleanup threshold device remove path

2020-04-14T13:49:51Z

Pass in the bank pointer directly to the cleaning up functions, obviating the need for per-CPU accesses. Make the clean up path interrupt-safe by cleaning the bank pointer first so that the rest of the teardown happens safe from the thresholding interrupt. No functional changes. [ bp: Write commit message and reverse bank->shared test to save an indentation level in threshold_remove_bank(). ] Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200403161943.1458-7-bp@alien8.de

x86/mce/amd: Straighten CPU hotplug path

2020-04-14T13:49:10Z

mce_threshold_create_device() hotplug callback runs on the plugged in CPU so: - use this_cpu_read() which is faster - pass in struct threshold_bank **bp to threshold_create_bank() and instead of doing per-CPU accesses - Use rdmsr_safe() instead of rdmsr_safe_on_cpu() which avoids an IPI. No functional changes. Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200403161943.1458-6-bp@alien8.de

x86/mce/amd: Sanitize thresholding device creation hotplug path

2020-04-14T13:48:30Z

Drop the stupid threshold_init_device() initcall iterating over all online CPUs in favor of properly setting up everything on the CPU hotplug path, when each CPU's callback is invoked. [ bp: Write commit message. ] Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200403161943.1458-5-bp@alien8.de

x86/mce/amd: Protect a not-fully initialized bank from the thresholding interrupt

2020-04-14T13:47:55Z

Make sure the thresholding bank descriptor is fully initialized when the thresholding interrupt fires after a hotplug event. [ bp: Write commit message and document long-forgotten bank_map. ] Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200403161943.1458-4-bp@alien8.de

x86/mce/amd: Init thresholding machinery only on relevant vendors

2020-04-14T13:47:11Z

... and not unconditionally. [ bp: Add a new vendor_flags bit for that. ] Signed-off-by: Thomas Gleixner Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200403161943.1458-3-bp@alien8.de