[PATCH] cpu:msr: fixed errors for checking SMRR MSR registers

Keng-Yü Lin kengyu at canonical.com
Tue Jan 31 09:38:59 UTC 2012


On Tue, Jan 31, 2012 at 5:19 PM, Colin Ian King
<colin.king at canonical.com> wrote:
> On 31/01/12 02:07, Alex Hung wrote:
>>
>> SMRR_PHYSBASE boundary check is aligned to 8MB.
>>
>> SMRR_PHYSMASK register is changed from 0x1f2 to 0x1f3.
>>
>> Signed-off-by: Alex Hung<alex.hung at canonical.com>
>> ---
>>  src/cpu/msr/msr.c |    4 ++--
>>  1 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/src/cpu/msr/msr.c b/src/cpu/msr/msr.c
>> index 06a756f..f84c7a6 100644
>> --- a/src/cpu/msr/msr.c
>> +++ b/src/cpu/msr/msr.c
>> @@ -194,14 +194,14 @@ static int msr_smrr(fwts_framework *fw)
>>                        if (fwts_cpu_readmsr(0, 0x1f2,&val) == FWTS_OK) {
>>
>>                                uint64_t physbase = val&  0xfffff000;
>>                                uint64_t type = val&  7;
>>
>> -                               if ((physbase % 0x7fffff) != 0)
>> +                               if ((physbase&  0x7fffff) != 0)
>>
>>                                        fwts_failed(fw, LOG_LEVEL_HIGH,
>> "MSRSMRR_PHYSBASE8MBBoundary",
>>                                                "SMRR: SMRR_PHYSBASE is NOT
>> on an 8MB boundary: %llx.", (unsigned long long)physbase);
>>                                if (type != 6)
>>                                        fwts_failed(fw, LOG_LEVEL_HIGH,
>> "MSRSMRR_TYPE",
>>                                                "SMRR: SMRR_TYPE is 0x%x,
>> should be 0x6 (Write-Back).", (int)type);
>>                        }
>> -                       if (fwts_cpu_readmsr(0, 0x1f2,&val) == FWTS_OK) {
>> +                       if (fwts_cpu_readmsr(0, 0x1f3,&val) == FWTS_OK) {
>>                                uint64_t physmask = val&  0xfffff000;
>>
>>                                uint64_t valid = (val>>  11)&  1;
>>
> Thanks for spotting and fixing this Alex.
>
> Acked-by: Colin King <colin.king at canonical.com>
>
>

Applied. Thanks.


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