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ArmPlatformPkg/NorFlashDxe: accept both non-secure and secure varstore GUIDs

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Now that the generic Variable Runtime DXE code no longer distinguishes
between gEfiVariableGuid and gEfiAuthenticatedVariableGuid in the varstore
FV header, we can relax the check in the NOR flash driver to accept either
GUID regardless of whether we are running a secure boot capable build or not.

This also means we can always use gEfiAuthenticatedVariableGuid when we
encounter an empty NOR flash that needs to be initialized before use. So
remove the mNorFlashVariableGuid global from the shared code and from both
versions of NorFlashDxe.inf. This essentially collapses the two drivers into
a single one, which means we can remove NorFlashAuthenticatedDxe entirely
in a subsequent patch.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ard Biesheuvel
2016-06-21 11:57:48 +02:00
parent 5e90aa1e20
commit 8753858f84
6 changed files with 5 additions and 44 deletions
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5
ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashFvbDxe.c
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@@ -111,7 +111,7 @@ InitializeFvAndVariableStoreHeaders (
// VARIABLE_STORE_HEADER
//
VariableStoreHeader = (VARIABLE_STORE_HEADER*)((UINTN)Headers + FirmwareVolumeHeader->HeaderLength);
CopyGuid (&VariableStoreHeader->Signature, mNorFlashVariableGuid);
CopyGuid (&VariableStoreHeader->Signature, &gEfiAuthenticatedVariableGuid);
VariableStoreHeader->Size = PcdGet32(PcdFlashNvStorageVariableSize) - FirmwareVolumeHeader->HeaderLength;
VariableStoreHeader->Format = VARIABLE_STORE_FORMATTED;
VariableStoreHeader->State = VARIABLE_STORE_HEALTHY;
@@ -181,7 +181,8 @@ ValidateFvHeader (
VariableStoreHeader = (VARIABLE_STORE_HEADER*)((UINTN)FwVolHeader + FwVolHeader->HeaderLength);
// Check the Variable Store Guid
if (!CompareGuid (&VariableStoreHeader->Signature, mNorFlashVariableGuid)) {
if (!CompareGuid (&VariableStoreHeader->Signature, &gEfiVariableGuid) &&
!CompareGuid (&VariableStoreHeader->Signature, &gEfiAuthenticatedVariableGuid)) {
DEBUG ((EFI_D_INFO, "%a: Variable Store Guid non-compatible\n",
__FUNCTION__));
return EFI_NOT_FOUND;