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authorMichael Brown2017-06-15 15:50:20 +0200
committerMichael Brown2017-06-16 02:17:48 +0200
commita6a5825f8d658834610de31b7b9be2e7d0a8804e (patch)
treef51a8b343176bbf7c31483006060e93dc0161924 /src/crypto
parent[ecm] Display invalid MAC address strings in debug messages (diff)
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[cpuid] Allow input %ecx value to be specified
For some CPUID leaves (e.g. %eax=0x00000004), the result depends on the input value of %ecx. Allow this subfunction number to be specified as a parameter to the cpuid() wrapper. The subfunction number is exposed via the ${cpuid/...} settings mechanism using the syntax ${cpuid/<subfunction>.0x40.<register>.<function>} e.g. ${cpuid/0.0x40.0.0x0000000b} ${cpuid/1.0x40.0.0x0000000b} to retrieve the CPU topology information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
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