Messages in this thread | | | Date | Fri, 1 Jun 2012 11:22:03 -0700 | Subject | Re: [PATCH 2/4] x86, CPU: Fix show_msr MSR accessing function | From | Yinghai Lu <> |
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On Fri, Jun 1, 2012 at 7:52 AM, Borislav Petkov <bp@amd64.org> wrote: > From: Borislav Petkov <borislav.petkov@amd.com> > > There's no real reason why, when showing the MSRs on a CPU at boottime, > we should be using the AMD-specific variant. Simply use the generic safe > one which handles #GPs just fine. > > Cc: Yinghai Lu <yinghai@kernel.org> > Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> > --- > arch/x86/kernel/cpu/common.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c > index 82f29e70d058..232fba2d54c9 100644 > --- a/arch/x86/kernel/cpu/common.c > +++ b/arch/x86/kernel/cpu/common.c > @@ -947,7 +947,7 @@ static void __cpuinit __print_cpu_msr(void) > index_max = msr_range_array[i].max; > > for (index = index_min; index < index_max; index++) { > - if (rdmsrl_amd_safe(index, &val)) > + if (rdmsrl_safe(index, &val)) > continue; > printk(KERN_INFO " MSR%08x: %016llx\n", index, val); > } > --
can you double check if the range will need special passcode ?
{ 0x00000000, 0x00000418}, { 0xc0000000, 0xc000040b}, { 0xc0010000, 0xc0010142}, { 0xc0011000, 0xc001103b},
passcode should be gprs[7] = 0x9c5a203a;
Thanks
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