On 4/30/21 1:43 PM, Laszlo Ersek wrote:
> On 04/30/21 18:54, Laszlo Ersek wrote:
>> On 04/29/21 19:20, Lendacky, Thomas wrote:
>>> On 4/29/21 12:12 PM, Tom Lendacky wrote:
>>>> Define a new PPI GUID that is to be used as a signal of when it is safe
>>>> to access the TPM MMIO range. This is needed so that, when SEV is active,
>>>> the MMIO range can be mapped unencrypted before it is accessed.
>>>>
>>>> Cc: Laszlo Ersek <ler...@redhat.com>
>>>> Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
>>>> Cc: Jordan Justen <jordan.l.jus...@intel.com>
>>>> Cc: Brijesh Singh <brijesh.si...@amd.com>
>>>> Cc: Erdem Aktas <erdemak...@google.com>
>>>> Cc: James Bottomley <j...@linux.ibm.com>
>>>> Cc: Jiewen Yao <jiewen....@intel.com>
>>>> Cc: Min Xu <min.m...@intel.com>
>>>> Cc: Marc-André Lureau <marcandre.lur...@redhat.com>
>>>> Cc: Stefan Berger <stef...@linux.ibm.com>
>>>> Signed-off-by: Tom Lendacky <thomas.lenda...@amd.com>
>>>
>>> Sorry, Laszlo, I forgot to include your Reviewed-by: on this patch.
>>
>> Reviewed-by: Laszlo Ersek <ler...@redhat.com>
>
> Hrmpf, a more even workload would benefit my reviews; here I missed that
> we didn't add the BZ link. :/
Not sure how I missed that, too, given that the other four patches had it.
Sorry about that.
Thanks,
Tom
>
> Laszlo
>
>
>>
>> Thanks
>> Laszlo
>>
>>>
>>> Tom
>>>
>>>> ---
>>>> OvmfPkg/OvmfPkg.dec | 4 ++++
>>>> 1 file changed, 4 insertions(+)
>>>>
>>>> diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
>>>> index 9629707020ba..6ae733f6e39f 100644
>>>> --- a/OvmfPkg/OvmfPkg.dec
>>>> +++ b/OvmfPkg/OvmfPkg.dec
>>>> @@ -128,6 +128,10 @@ [Ppis]
>>>> # has been discovered and recorded
>>>> gOvmfTpmDiscoveredPpiGuid = {0xb9a61ad0, 0x2802, 0x41f3,
>>>> {0xb5, 0x13, 0x96, 0x51, 0xce, 0x6b, 0xd5, 0x75}}
>>>>
>>>> + # This PPI signals that accessing the MMIO range of the TPM is possible
>>>> in
>>>> + # the PEI phase, regardless of memory encryption
>>>> + gOvmfTpmMmioAccessiblePpiGuid = {0x35c84ff2, 0x7bfe, 0x453d,
>>>> {0x84, 0x5f, 0x68, 0x3a, 0x49, 0x2c, 0xf7, 0xb7}}
>>>> +
>>>> [Protocols]
>>>> gVirtioDeviceProtocolGuid = {0xfa920010, 0x6785, 0x4941,
>>>> {0xb6, 0xec, 0x49, 0x8c, 0x57, 0x9f, 0x16, 0x0a}}
>>>> gXenBusProtocolGuid = {0x3d3ca290, 0xb9a5, 0x11e3,
>>>> {0xb7, 0x5d, 0xb8, 0xac, 0x6f, 0x7d, 0x65, 0xe6}}
>>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>
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