Jan Beulich 0711b59b85 x86emul: correct FPU code/data pointers and opcode handling ...

Prevent leaking the hypervisor ones (stored by hardware during stub
execution), at once making sure the guest sees correct values there.
This piggybacks on the backout logic used to deal with write faults of
FPU insns.

Deliberately ignore the NO_FPU_SEL feature here: Honoring it would
merely mean extra code with no benefit (once we XRSTOR state, the
selector values will simply be lost anyway).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com> [hvm/emulate.c]
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>

2017-03-21 15:13:42 +01:00

..

blowfish.c

Replace FSF street address with canonical URL

2015-07-29 11:14:07 +01:00

Makefile

x86emul: parallelize SIMD test code building

2017-03-17 09:34:38 +01:00

simd.c

x86emul: test coverage for SSE3/SSSE3/SSE4* insns

2017-03-07 17:09:09 +01:00

test_x86_emulator.c

x86emul: correct handling of FPU insns faulting on memory write

2017-03-21 15:12:59 +01:00

testcase.mk

x86emul/test: split generic and testcase specific parts

2017-02-24 17:22:13 +01:00

x86_emulate.c

x86emul: correct FPU code/data pointers and opcode handling

2017-03-21 15:13:42 +01:00

x86_emulate.h

x86emul: correct FPU code/data pointers and opcode handling

2017-03-21 15:13:42 +01:00