Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-22 Thread Laszlo Ersek
On 04/21/21 19:07, Erdem Aktas wrote: > Hi Laszlo, > > I am sorry to hear that it sounded like we are dictating a certain > approach. Although I can see why it sounded that way, it certainly was not > my intention. > We want to work with the EDK2 community to have a solution that is > beneficial

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-21 Thread Erdem Aktas via groups.io
Hi Laszlo, I am sorry to hear that it sounded like we are dictating a certain approach. Although I can see why it sounded that way, it certainly was not my intention. We want to work with the EDK2 community to have a solution that is beneficial for everyone and we appreciate the inputs that we

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-21 Thread Laszlo Ersek
On 04/21/21 02:38, Yao, Jiewen wrote: > Hello > Do we have some conclusion on this topic? > > Do we agree the one-binary solution in OVMF or we need more discussion? Well it's not technically impossible to do, just very ugly and brittle. And I'm doubtful that this is a unique problem ("just fix

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-20 Thread Yao, Jiewen
Hello Do we have some conclusion on this topic? Do we agree the one-binary solution in OVMF or we need more discussion? Thank you Yao Jiewen > -Original Message- > From: Erdem Aktas > Sent: Friday, April 16, 2021 3:43 AM > To: Paolo Bonzini > Cc: devel@edk2.groups.io;

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-15 Thread Erdem Aktas via groups.io
Thanks Paolo. On Thu, Apr 15, 2021 at 12:59 AM Paolo Bonzini wrote: > > On 15/04/21 01:34, Erdem Aktas wrote: > > We do not want to generate different binaries for AMD, Intel, Intel > > with TDX, AMD with SEV/SNP etc > > My question is why the user would want a single binary for VMs with and >

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-15 Thread Paolo Bonzini
On 15/04/21 01:34, Erdem Aktas wrote: We do not want to generate different binaries for AMD, Intel, Intel with TDX, AMD with SEV/SNP etc My question is why the user would want a single binary for VMs with and without TDX/SNP. I know there is attestation, but why would you even want the

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-14 Thread Erdem Aktas via groups.io
Hi all, >>Can we please pry a little bit at that "one binary" requirement? I think when we call it a "one binary" requirement, it sounds like we are asking something new but what we are asking is pretty much captured by James Bottomley. We do not want to generate different binaries for AMD,

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-12 Thread James Bottomley
On Mon, 2021-04-12 at 11:54 +, Yao, Jiewen wrote: > I totally agree with you that from security perspective, the best > idea to isolate AMD SEV/Intel TDX from standard OVMF. There's a big difference between building tuned binaries and separating the subsystems entirely. Ideally we don't want

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-12 Thread Yao, Jiewen
I totally agree with you that from security perspective, the best idea to isolate AMD SEV/Intel TDX from standard OVMF. Do you want to propose move AMD SEV support to another SEC? > -Original Message- > From: devel@edk2.groups.io On Behalf Of Dr. David > Alan Gilbert > Sent: Monday,

Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-12 Thread Dr. David Alan Gilbert
* Laszlo Ersek (ler...@redhat.com) wrote: > On 04/09/21 15:44, Yao, Jiewen wrote: > > Hi Laszlo > > Thanks. > > > > We did provide a separate binary in the beginning - see > > https://github.com/tianocore/edk2-staging/tree/TDVF, with same goal - easy > > to maintain and develop. A clean

[edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-09 Thread Laszlo Ersek
On 04/09/21 15:44, Yao, Jiewen wrote: > Hi Laszlo > Thanks. > > We did provide a separate binary in the beginning - see > https://github.com/tianocore/edk2-staging/tree/TDVF, with same goal - easy to > maintain and develop. A clean solution, definitely. > > However, we got requirement to