Thanks.
On Sat, Aug 3, 2013 at 1:44 AM, Matt Thomas <m...@3am-software.com> wrote: > > On Aug 2, 2013, at 9:41 AM, Piyus Kedia <piyuske...@gmail.com> wrote: > > > Hi, > > > > I can see a system call sys_rasctl which install a RAS area. So I assume > that the RAS PC's will be only user PC's and the cpu_switchto will modify > the user PC if it is interrupted in the middle of a RAS. > > No. Some architectures use RAS against kernel addresses > but those comparisons against the PC are explicitly done. > (MIPS is an example for implementing the atomic_ops on > MIPS processors which don't have the LL/SC instructions.)
