Messages in this thread |  | | | Date | Wed, 10 Jun 2009 15:30:36 -0700 | | From | "H. Peter Anvin" <> | | Subject | Re: [PATCH] X86: cpu_debug support for VIA / Centaur CPU's |
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Michael S. Zick wrote: >> yes, of course - i meant the /debug/x86/cpu/* behavior: it should >> either result zeroes, or should return -EINVAL. (probably the >> latter) >> > > Return zeroes - same as hardware case for bits which can't be set. > Returning -EINVAL might match a specific bit pattern caller is looking for. >
It should be -EIO anyway, which is what /dev/cpu/*/msr does. -hpa
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