[edk2-devel] [PATCH v1 0/2] SEV Page Encryption Bitmap support for OVMF.

[Laszlo Ersek]

Hi Ashish,

On 12/02/20 08:28, Ashish Kalra wrote:
> From: Ashish Kalra <ashish.kalra at amd.com>
> 
> By default all the SEV guest memory regions are considered encrypted,
> if a guest changes the encryption attribute of the page (e.g mark a
> page as decrypted) then notify hypervisor. Hypervisor will need to
> track the unencrypted pages. The information will be used during
> guest live migration, guest page migration and guest debugging.
> 
> The patch-set also adds a new SEV and SEV-ES hypercall abstraction
> library to support SEV Page encryption/decryption status hypercalls
> for SEV and SEV-ES guests.
> 
> BaseMemEncryptSevLib invokes hypercalls via this new hypercall library.
> 
> A branch containing these patches is available here:
> https://github.com/ashkalra/edk2/tree/sev_page_encryption_bitmap_v1
> 
> Ashish Kalra (1):
>   OvmfPkg/MemEncryptHypercallLib: add library to support SEV hypercalls.
> 
> Brijesh Singh (1):
>   OvmfPkg/BaseMemEncryptLib: Support to issue unencrypted hypercall
> 
>  OvmfPkg/OvmfPkgX64.dsc                        |   1 +
>  .../BaseMemEncryptSevLib.inf                  |   1 +
>  .../MemEncryptHypercallLib.inf                |  39 +++++++
>  .../Include/Library/MemEncryptHypercallLib.h  |  37 ++++++
>  .../BaseMemEncryptSevLib/X64/VirtualMemory.c  |  18 +++
>  .../MemEncryptHypercallLib.c                  | 105 ++++++++++++++++++
>  .../X64/AsmHelperStub.nasm                    |  39 +++++++
>  7 files changed, 240 insertions(+)
>  create mode 100644 OvmfPkg/Library/MemEncryptHypercallLib/MemEncryptHypercallLib.inf
>  create mode 100644 OvmfPkg/Include/Library/MemEncryptHypercallLib.h
>  create mode 100644 OvmfPkg/Library/MemEncryptHypercallLib/MemEncryptHypercallLib.c
>  create mode 100644 OvmfPkg/Library/MemEncryptHypercallLib/X64/AsmHelperStub.nasm
> 

please resend the series with correct (shallow) threading.

Thanks
Laszlo



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