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Anuj Mittal 5e9c1b23f4 tune-core2: use n270 instead of core2duo
Fixes warnings in builds using core2-32 tune:

warning: TCG doesn't support requested feature: CPUID.80000001H:EDX.syscall [bit 11]
warning: TCG doesn't support requested feature: CPUID.80000001H:EDX.lm [bit 29]

when executing postinsts using qemu-i386.

i386 target doesn't enable CPUID_EXT2_SYSCALL and CPUID_EXT2_LM [1]
while cpu choice of core2duo that we use for core2-32 TUNE does [2].
Use n270 cpu instead to use with qemu which supports SSSE3 and doesn't
have these bits enabled [3].

[1] https://github.com/qemu/qemu/blob/master/target/i386/cpu.c#L739
[2] https://github.com/qemu/qemu/blob/master/target/i386/cpu.c#L1439
[3] https://github.com/qemu/qemu/blob/master/target/i386/cpu.c#L1603

Fixes [YOCTO #12916]

(From OE-Core rev: 3db567d7835c6bb158d0f6c5b5533835a0181c45)

Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-09-13 17:38:07 +01:00
2018-02-24 10:31:45 +00:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
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