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openSUSE:Evergreen:Maintenance:114
xen.openSUSE_Evergreen_11.4
24456-x86-emul-lea.patch
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File 24456-x86-emul-lea.patch of Package xen.openSUSE_Evergreen_11.4
# HG changeset patch # User David Vrabel <david.vrabel@citrix.com> # Date 1325778436 0 # Node ID 03781de56c31072266fb464e7dfeec133bcf0fb4 # Parent 94180a5a0c7c7d680ede2e54bd13f56ed43f452d x86: emulate lea with two register operands correctly An lea instruction with two register operands should raise an undefined instruction exception. Skype does such a instruction and will crash when starting if it does not get the exception. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Keir Fraser <keir@xen.org> Committed-by: Keir Fraser <keir@xen.org> --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -2056,6 +2056,7 @@ x86_emulate( } case 0x8d: /* lea */ + generate_exception_if(ea.type != OP_MEM, EXC_UD, -1); dst.val = ea.mem.off; break;
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