Messages in this thread | | | Date | Thu, 18 Sep 2014 15:06:59 +0200 | From | Paolo Bonzini <> | Subject | Re: [RESEND PATCH 1/3] x86: Adding structs to reflect cpuid fields |
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Il 17/09/2014 16:06, Borislav Petkov ha scritto: >> > AFAIK backward compatibility is usually maintained in x86. I did not >> > see in Intel SDM anything that says "this CPUID field means something >> > for CPU X and something else for CPU Y". Anyhow, it is not different >> > than bitmasks in this respect. > You still don't get my point: what are you going to do when > min_monitor_line_size needs to be 17 bits all of a sudden?
The extra bit used to be reserved and thus will be zero on older families. So, nothing?
Paolo
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