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author | H.J. Lu <hjl.tools@gmail.com> | 2018-07-26 11:10:08 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2018-07-26 11:10:44 -0700 |
commit | 65d87ade1ee6f3ac099105e3511bd09bdc24cf3f (patch) | |
tree | 4a4a37507e6e33c4484f5a2f53883bc5052c927f /MAINTAINERS | |
parent | c9dc4d5117afea7283d5fd80c80be8cc09cde84d (diff) |
x86: Correct index_cpu_LZCNT [BZ # 23456]
cpu-features.h has
#define bit_cpu_LZCNT (1 << 5)
#define index_cpu_LZCNT COMMON_CPUID_INDEX_1
#define reg_LZCNT
But the LZCNT feature bit is in COMMON_CPUID_INDEX_80000001:
Initial EAX Value: 80000001H
ECX Extended Processor Signature and Feature Bits:
Bit 05: LZCNT available
index_cpu_LZCNT should be COMMON_CPUID_INDEX_80000001, not
COMMON_CPUID_INDEX_1. The VMX feature bit is in COMMON_CPUID_INDEX_1:
Initial EAX Value: 01H
Feature Information Returned in the ECX Register:
5 VMX
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
[BZ # 23456]
* sysdeps/x86/cpu-features.h (index_cpu_LZCNT): Set to
COMMON_CPUID_INDEX_80000001.
Diffstat (limited to 'MAINTAINERS')
0 files changed, 0 insertions, 0 deletions