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authorH. Peter Anvin <hpa@zytor.com>2008-02-04 16:47:59 +0100
committerIngo Molnar <mingo@elte.hu>2008-02-04 16:47:59 +0100
commit2347d933b158932cf2b8aeebae3e5cc16b200bd1 (patch)
tree09eeeb7da4a431f07bc7b4afb146279ff6b78d9d /ipc
parent71713eeed0c90bb05c509388609223555575f558 (diff)
x86: cpuid: allow querying %ecx-sensitive CPUID levels
After /dev/*/cpuid was introduced, Intel changed the semantics of the CPUID instruction to be sentitive to %ecx as well as %eax. This patch allows querying of %ecx-sensitive levels by placing the %ecx value in the upper 32 bits of the file position (lower 32 bits always were used for the %eax value.) Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'ipc')
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