Rusty Russell wrote:
You mean the l and ll variants? The 64 bit variants are rdmsrl and
rdtscll, not to be confused with rdtscl, which returns the lower 32
bits. This confusion caused the x86_64 bug in gameport.c which the
patch comment mentioned (at least, seems to be a bug to me).
See why I want to fix these names?
So if you would prefer u64 rdtsc64(), u32 rdtsc_low(), u64 rdmsr64(int
msr), u32 rdmsr_low(int msr), I can convert everyone to that, although
it's a more invasive change...
rdmsrl is really misnamed. It should have been rdmsrq to be consistent,
and have rdmsrl return the low 32 bits.
-hpa
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