Messages in this thread | | | Date | Thu, 22 May 2008 14:32:06 -0700 | From | Chris Wright <> | Subject | Re: [RFC] x86: xsave/xrstor support, ucontext_t extensions |
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* H. Peter Anvin (hpa@zytor.com) wrote: > Suresh Siddha wrote: >> >> hpa, What is the virtualization problem? Are you referring to perf problem? >> As you noted, regular non-rt signal handlers won't need this cpuid check. It's >> needed only for those who manually look at non-rt signal frames and interpret it. >> And also, they can do this check only once and not everytime. >> > > No, relying on CPUID and vdso both have implications for virtualization.
hmm, what implications? cpuid is dealt with already.
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