On Mon, 19 Nov 2007, Bastian Blank wrote: > On Fri, Nov 09, 2007 at 04:42:48PM -0200, Glauber de Oliveira Costa wrote: > > - wrmsrl(MSR_CSTAR, ia32_cstar_target); > > + wrmsrl(MSR_CSTAR, (u64)ia32_cstar_target); > > Hmm, why do you add explicit casts? The compiler should convert that > correctly on its own. > > > +static inline void wrmsrl(unsigned int msr, unsigned long long val) > > Hmm, long long is 64 bit on all x86, but why not use explicit u64 to > show that?
(quick reply) With PVOPS on it gives compiler warnings without that explict cast. Without looking at the code, IIRC with non-PVOPS it is a macro directly into asm, so it didn't matter what the cast was. But with PVOPS as a function, it gave compiler warnings. Take it out and try compiling it for both i386 and x86_64. One of them gave warnings. But maybe it's not a problem now. -- Steve _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/virtualization
