Avi Kivity wrote: > > Hmm, looking back at the dump: > >> 1811: 8d 86 00 00 ff 3f lea 0x3fff0000(%rsi),%eax >> 1817: 83 f8 03 cmp $0x3,%eax >> 181a: 0f 87 e2 01 00 00 ja 1a02 <svm_set_msr+0x27f> > > So while gcc is using %rsi, it loads the result back into %eax, which > has the effect of dropping back into 32-bits. So looks like gcc was > right here. Sorry for spreading confusion and apologies to gcc. >
OK. Well, then I can't explain why we are unconditionally calling kvm_set_msr_common(), regardless of whether data == 0 or not. Avi, you said it works for you; what version of gcc are you using, and can you send me your objdump -Sr? I'd like to compare the assembly output with what 4.3.0 is spitting out. Chris Lalancette ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
