On 15.03.2016 14:15, Laurent Vivier wrote: > When they are started, processors are in 32-bit mode, > as we are testing ppc64 processors, enable the 64bit mode > on starting. > > Signed-off-by: Laurent Vivier <lvivier@xxxxxxxxxx> > --- > powerpc/cstart64.S | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/powerpc/cstart64.S b/powerpc/cstart64.S > index c87e3d6..634b854 100644 > --- a/powerpc/cstart64.S > +++ b/powerpc/cstart64.S > @@ -18,6 +18,15 @@ > .globl start > start: > FIXUP_ENDIAN > + > + /* enable 64-bit mode */ > + mfmsr r11 > + li r12,-1 > + rldicr r12,r12,0,0 Nice idea to set the highest bit, I didn't know that one yet :-) > + or r11,r11,r12 > + mtmsrd r11 > + isync Looks good! Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx> PS: As far as I can see, the C code has already been compiled for 64 bits ... how did that work if it has been run in 32-bit mode so far?? -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
