Erdem
; James Bottomley ; Tom
Lendacky
Subject: RE: [edk2-devel] [PATCH] OvmfPkg: Set PciLib for TdxDxe driver
In AmdSevDxe's entry point it clears the C-bit from PcdPciExpressBaseAddress
and other memory spaces if needed. Please see
https://github.com/tianocore/edk2/blob/master/OvmfPkg
anyone.
-Original Message-
From: Xu, Min M
Sent: Tuesday, April 19, 2022 12:39 PM
To: Yao, Jiewen ; devel@edk2.groups.io
Cc: Brijesh Singh ; Aktas, Erdem
; James Bottomley ; Tom
Lendacky
Subject: RE: [edk2-devel] [PATCH] OvmfPkg: Set PciLib for TdxDxe driver
In AmdSevDxe's entry poi
; James Bottomley ; Tom
> Lendacky
> Subject: Re: [edk2-devel] [PATCH] OvmfPkg: Set PciLib for TdxDxe driver
>
> Can SEV clear the C-bit in SEC phase?
>
> I think that is right way to ensure PCI Express can always be accessed by
> anyone.
>
>
> > -Orig
Erdem
> ; James Bottomley ; Tom
> Lendacky
> Subject: RE: [edk2-devel] [PATCH] OvmfPkg: Set PciLib for TdxDxe driver
>
> In AmdSevDxe's entry point it clears the C-bit from PcdPciExpressBaseAddress
> and other memory spaces if needed. Please see
> https://github.com/tia
-
> From: Yao, Jiewen
> Sent: Tuesday, April 19, 2022 12:16 PM
> To: Xu, Min M ; devel@edk2.groups.io
> Cc: Brijesh Singh ; Aktas, Erdem
> ; James Bottomley ; Tom
> Lendacky
> Subject: RE: [edk2-devel] [PATCH] OvmfPkg: Set PciLib for TdxDxe driver
>
> Do you mean, with SEV
y ; Tom
> Lendacky
> Subject: RE: [edk2-devel] [PATCH] OvmfPkg: Set PciLib for TdxDxe driver
>
> On April 19, 2022 10:54 AM, Yao Jiewen wrote:
> >
> > Why does TdxDxe call TdxMailbox in an SEV platform?
> > Or why does TdxMailbox call SynchronizationLib in an SEV
On April 19, 2022 10:54 AM, Yao Jiewen wrote:
>
> Why does TdxDxe call TdxMailbox in an SEV platform?
> Or why does TdxMailbox call SynchronizationLib in an SEV platform?
>
TdxDxe will not call TdxMailbox/SynchronizationLib in SEV platform. The problem
is in the lib constructor. When TdxDxe drive
> To: Yao, Jiewen ; devel@edk2.groups.io
> Cc: Brijesh Singh ; Aktas, Erdem
> ; James Bottomley ; Tom
> Lendacky
> Subject: RE: [edk2-devel] [PATCH] OvmfPkg: Set PciLib for TdxDxe driver
>
> On April 19, 2022 10:08 AM, Yao Jiewen wrote:
> >
> > If TdxDxe breaks
On April 19, 2022 10:08 AM, Yao Jiewen wrote:
>
> If TdxDxe breaks SEV, should we skip the TdxDxe in SEV path?
>
> I don't understand why we need use Cfg8.
>
In TdxDxe driver we need to relocate APs and it requires the TdxMailboxLib.
The lib chain is that TdxMailbox -> SynchronizationLib -> Ti
Hi
If TdxDxe breaks SEV, should we skip the TdxDxe in SEV path?
I don't understand why we need use Cfg8.
Thank you
Yao Jiewen
> -Original Message-
> From: devel@edk2.groups.io On Behalf Of Min Xu
> Sent: Tuesday, April 19, 2022 9:58 AM
> To: devel@edk2.groups.io
> Cc: Xu, Min M ; Brije
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