Re: [PATCH v2] x86/mce: Honour bios-set CMCI threshold

2012-09-11 Thread Tony Luck
On Mon, Sep 10, 2012 at 10:31 PM, Naveen N. Rao wrote: > + if (mce_bios_cmci_threshold) > + printk_once(KERN_INFO > + "bios_cmci_threshold: Using bios-set threshold values > for CMCI"); Do we really need this message? The user knows whether they gave the

[PATCH v2] x86/mce: Honour bios-set CMCI threshold

2012-09-10 Thread Naveen N. Rao
The ACPI spec doesn't provide for a way for the bios to pass down recommended thresholds to the OS on a _per-bank_ basis. This patch adds a new boot option, which if passed, allows bios to initialize the CMCI threshold. In such a case, we simply skip programming any threshold value. As fail-safe,