rdmsrl() shifts an unsigned long by 32 bits, which on x86_32 results in the data being discarded. patch fixes that by casting to __u64 before the shift. Signed-off-by: Avi Kivity <avi@qumranet.com> diff -r 829517be689f xen/include/asm-x86/msr.h --- a/xen/include/asm-x86/msr.h Fri Dec 23 15:42:46 2005 +++ b/xen/include/asm-x86/msr.h Tue Dec 27 19:02:09 2005 @@ -12,7 +12,7 @@ __asm__ __volatile__("rdmsr" \ : "=a" (a__), "=d" (b__) \ : "c" (msr)); \ - val = a__ | (b__<<32); \ + val = a__ | ((__u64)b__<<32); \ } while(0); #define wrmsr(msr,val1,val2) \ -- error compiling committee.c: too many arguments to function _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel