[edk2-devel] [PATCH 0/3] OVMF: support EFI_RNG_PROTOCOL without virtio-rng
Gerd Hoffmann
kraxel at redhat.com
Fri Nov 11 08:14:47 UTC 2022
On Thu, Nov 10, 2022 at 02:47:35PM +0100, Ard Biesheuvel wrote:
> Currently, we only expose EFI_RNG_PROTOCOL when running under QEMU if it
> exposes a virtio-rng device. This means that generic EFI apps or
> loaders have no access to an entropy source if this device is
> unavailable, unless they implement their own arch-specific handling to
> figure out whether any CPU instructions or monitor calls can be used
> instead.
>
> So let's wire those up as EFI_RNG_PROTOCOL implementations as well,
> using the existing drivers and libraries.
>
> First patch is a bugfix - Liming, mind if I merge that right away?
> Thanks.
>
> Cc: Liming Gao <gaoliming at byosoft.com.cn>
> Cc: Rebecca Cran <rebecca at bsdio.com>
> Cc: Pierre Gondois <pierre.gondois at arm.com>
> Cc: Leif Lindholm <quic_llindhol at quicinc.com>
> Cc: Sami Mujawar <sami.mujawar at arm.com>
> Cc: Gerd Hoffmann <kraxel at redhat.com>
> Cc: Jason A. Donenfeld <Jason at zx2c4.com>
>
> Ard Biesheuvel (3):
> ArmPkg/ArmTrngLib: Fix incorrect GUID reference in DEBUG() output
> ArmVirtPkg/ArmVirtQemu: Expose TRNG hypercall via RngDxe if
> implemented
> OvmfPkg/OvmfX86: Enable RDRAND based EFI_RNG_PROTOCOL implementation
Series looks good to me (not tested though).
Acked-by: Gerd Hoffmann <kraxel at redhat.com>
take care,
Gerd
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