cvs commit: src/sys/dev/random probe.c
nate at root.org
Mon Feb 7 10:39:08 PST 2005
John Baldwin wrote:
> On Sunday 06 February 2005 11:55 am, Ian Dowse wrote:
>>iedowse 2005-02-06 16:55:52 UTC
>> FreeBSD src repository
>> Modified files:
>> sys/dev/random probe.c
>> Check that we have at least a 586-class CPU before calling do_cpuid().
>> This fixes booting on a number of 486 processors.
> This is wrong. Some 486's do have cpuid, notable the dx4's (I used to have
> one.) The correct test is to see if you can flip a bit in %eflags (can't
> remember which one). If that flag stays at zero then you don't have cpuid,
> if the bit follows the value written to it then you do have cpuid.
That matters little since the cpuid result is then used to check for a
VIA part introduced in 2003.
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