[Xen-changelog] [xen master] x86emul: correct direction of FPU insn emulations

[patchbot@xxxxxxx]

commit 0a34e43d0f74ecaf815bf094443925857b9e83a1
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Nov 10 18:12:56 2016 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Nov 10 18:12:56 2016 +0100

    x86emul: correct direction of FPU insn emulations
    
    There are two cases where this was wrong, albeit in a benign way (the
    compiler - according to my checking - didn't leverage the wrongness
    for any optimizations affecting overall outcome).
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Release-acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 xen/arch/x86/x86_emulate/x86_emulate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c 
b/xen/arch/x86/x86_emulate/x86_emulate.c
index ec748a0..67ef31d 100644
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -3683,7 +3683,7 @@ x86_emulate(
                 if ( (rc = ops->read(src.mem.seg, src.mem.off,
                                      &src.val, src.bytes, ctxt)) != 0 )
                     goto done;
-                emulate_fpu_insn_memdst("fldt", src.val);
+                emulate_fpu_insn_memsrc("fldt", src.val);
                 break;
             case 7: /* fstp m80fp */
                 ea.bytes = 10;
@@ -3780,7 +3780,7 @@ x86_emulate(
                 ea.bytes = 8;
                 dst = ea;
                 dst.type = OP_MEM;
-                emulate_fpu_insn_memsrc("fstl", dst.val);
+                emulate_fpu_insn_memdst("fstl", dst.val);
                 break;
             case 3: /* fstp m64fp */
                 ea.bytes = 8;
--
generated by git-patchbot for /home/xen/git/xen.git#master

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