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OvmfPkg/PlatformBootManagerLib: connect Virtio RNG devices again

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Virtio RNG devices are never boot devices, so in commit 245c643cc8 we
stopped connecting them. This is a problem because an OS boot loader may
depend on EFI_RNG_PROTOCOL to seed the OS's RNG.

Connect Virtio RNG devices again. And, while commit 245c643cc8 removed
that from PlatformBootManagerAfterConsole(), reintroduce it now to
PlatformBootManagerBeforeConsole() -- this way Driver#### options launched
between both functions may access EFI_RNG_PROTOCOL too.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Fixes: 245c643cc8
Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1579518
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
This commit is contained in:
Laszlo Ersek
2018-05-17 21:51:11 +02:00
parent c4add6b6e9
commit 7ebad830d6
2 changed files with 106 additions and 0 deletions
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OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.h
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@@ -30,6 +30,7 @@ Abstract:
#include <IndustryStandard/Acpi.h>
#include <IndustryStandard/SmBios.h>
#include <IndustryStandard/PeImage.h>
#include <IndustryStandard/Virtio095.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>