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| author | kib <kib@FreeBSD.org> | 2015-01-19 10:52:55 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2015-01-19 10:52:55 +0000 |
| commit | da566e85be96a2ed618e86f2a0e67a61a8e61eef (patch) | |
| tree | 5a348f34611f967445bc4597da347e2133eaf77b /sys/x86 | |
| parent | b1054791ad23c8bd242677882470e45f3c2f9637 (diff) | |
| download | FreeBSD-src-da566e85be96a2ed618e86f2a0e67a61a8e61eef.zip FreeBSD-src-da566e85be96a2ed618e86f2a0e67a61a8e61eef.tar.gz | |
MFC r277047:
For x86, read MAXPHYADDR into variable cpu_maxphyaddr.
Diffstat (limited to 'sys/x86')
| -rw-r--r-- | sys/x86/x86/identcpu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/x86/x86/identcpu.c b/sys/x86/x86/identcpu.c index 87a5664..8bdc14e 100644 --- a/sys/x86/x86/identcpu.c +++ b/sys/x86/x86/identcpu.c @@ -1289,7 +1289,10 @@ identify_cpu(void) } if (cpu_exthigh >= 0x80000008) { do_cpuid(0x80000008, regs); + cpu_maxphyaddr = regs[0] & 0xff; cpu_procinfo2 = regs[2]; + } else { + cpu_maxphyaddr = (cpu_feature & CPUID_PAE) != 0 ? 36 : 32; } #ifdef __i386__ |
