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# Date Author Comment
c6dc6f63 03/13/2010 05:50 pm Andre Przywara

x86/cpuid: move CPUID functions into separate file

about half of target-i386/helper.c consist of CPUID related functions.
Only one of them is a real TCG helper function. So move the whole
CPUID stuff out of this into a separate file to get better
maintainable parts....

42673936 03/13/2010 05:50 pm Andre Przywara

x86/cpuid: replace magic number with named constant

CPUID leaf Fn8000_0001.EDX contains a copy of many Fn0000_0001.EDX bits.
Define a name for this mask to improve readability and avoid typos.

Signed-off-by: Andre Przywara <>
Signed-off-by: Aurelien Jarno <>

4d067ed7 03/13/2010 05:50 pm Andre Przywara

x86/cpuid: fix missing feature set bits

This one was accidently removed with commit
bb0300dc57c10b3721451b0ff566a03f9276cc77

Signed-off-by: Andre Przywara <>
Signed-off-by: Aurelien Jarno <>

bdde476a 03/13/2010 05:50 pm Andre Przywara

x86/cpuid: moved host_cpuid function and remove prototype

the host_cpuid function was located at the end of the file and had
a prototype before it's first use. Move it up and remove the
prototype.

Signed-off-by: Andre Przywara <>
Signed-off-by: Aurelien Jarno <>

e117f772 03/13/2010 05:50 pm Andre Przywara

x86/cpuid: add missing CPUID feature flag names

Some CPUID feature flags had no string value, so they could not be
switched on or off from the command line.
Add names for the missing ones mentioned in the current public CPUID
specification from both Intel and AMD. Those only mentioned in the...

ed2c54d4 03/13/2010 05:50 pm Andre Przywara

x86/cpuid: add "host" to the list of supported CPU models

Signed-off-by: Andre Przywara <>
Signed-off-by: Aurelien Jarno <>

551a2dec 03/13/2010 05:50 pm Andre Przywara

x86/cpuid: add TCG feature bit trimming

In KVM we trim the user provided CPUID bits to match the host CPU's
one. Introduce a similar feature to QEMU/TCG. Create a mask of TCG's
capabilities and apply it to the user bits.
This allows to let the CPU models reflect their native archetypes....