Displaying 3 results from an estimated 3 matches for "get_fpu".
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2013 Aug 28
3
[PATCH] x86: AVX instruction emulation fixes
...efix) byte instead of the apparent ModR/M
one as the second prefix byte
- early decoding normalized vex.reg, thus corrupting it for the main
consumer (copy_REX_VEX()), resulting in #UD on the two-operand
instructions we emulate
Also add respective test cases to the testing utility plus
- fix get_fpu() (the fall-through order was inverted)
- add cpu_has_avx2, even if it''s currently unused (as in the new test
cases I decided to refrain from using AVX2 instructions in order to
be able to actually run all the tests on the hardware I have)
- slightly tweak cpu_has_avx to more consisten...
2011 Nov 30
0
[PATCH 2/4] x86/emulator: add emulation of SIMD FP moves
...b)-1 };
+
+ if ( vex.opcx == vex_none )
+ {
+ if ( vex.pfx & VEX_PREFIX_DOUBLE_MASK )
+ vcpu_must_have_sse2();
+ else
+ vcpu_must_have_sse();
+ ea.bytes = 16;
+ SET_SSE_PREFIX(stub[0], vex.pfx);
+ get_fpu(X86EMUL_FPU_xmm, &fic);
+ }
+ else
+ {
+ fail_if((vex.opcx != vex_0f) ||
+ (vex.reg && ((ea.type == OP_MEM) ||
+ !(vex.pfx & VEX_PREFIX_SCALAR_MASK))));
+ vcpu_must_have_avx();
+...
2011 Oct 05
2
MMIO emulation failed & successful reboot
Hello list,
Did an update to the latest AMD drivers
(11-9_vista64_win7_64_dd_ccc_ocl) and was pleasantly surprised to find
that I can reboot my passthrough domU!
Firstly, the reboot was triggered involuntarily shortly (20
seconds) AFTER the SUCCESSFUL driver update. The only thing logged was
this:
(XEN) io.c:194:d5 MMIO emulation failed @
0010:fffff800036c7d00: 0f 28 04 10 0f 28