On 03/08/2012 01:50 PM, Eric W. Biederman wrote: > Fernando Luis V?zquez Cao<fernando at oss.ntt.co.jp> writes: > >> Subject: [PATCH] boot: add early NMI counter >> >> From: Fernando Luis Vazquez Cao<fernando at oss.ntt.co.jp> >> >> We currently ignore early NMIs but it would be nice to be able to >> know whether they actually occurred. >> >> This patch adds an early NMI counter and exports it trough >> /proc/interrupts with the name of ENM (Early NMI). > For a userspace interface I suspect we just want to dump the count > into the NMI counter. > > It probably makes sense to have a separate variable in early boot like > you do, but then about the time we setup the normal NMI handler move the > NMI count over and possibly do something like reboot if that is our > policy. I am fine with either approach. I guess that is the x86 maintainers' call. Ingo, Thomas, Peter, what do you think? Should I add a new entry to /proc/interrupts or move over the early NMI count to the existing per-cpu NMI counter? Thanks, Fernando
