Add ArmCcaInitialize () to perform Arm CCA specific initialisation
like:
- Reading the Realm Config by calling the RSI interface.
- Storing the IPA width of the Realm in PcdArmCcaEarlyIpaWidth.
- Configuring the MMIO regions to update the page tables to set
the protection attribute as Unprotected IPA.
Note: ArmCcaInitialize () is implemented in ArmCcaInitPeiLib for
which a Null implementation is provided. Therefore, this change
should not break existing platforms that do not implement the
Arm CCA.
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Leif Lindholm <quic_llind...@quicinc.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Sami Mujawar <sami.muja...@arm.com>
---
ArmVirtPkg/PrePi/PrePi.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/ArmVirtPkg/PrePi/PrePi.c b/ArmVirtPkg/PrePi/PrePi.c
index
f27e0ad3d223820f60d1f8087325a96c60ebe876..405da60177f56238a79687ff8e1839207b14afd3
100755
--- a/ArmVirtPkg/PrePi/PrePi.c
+++ b/ArmVirtPkg/PrePi/PrePi.c
@@ -9,6 +9,7 @@
#include <PiPei.h>
#include <Pi/PiBootMode.h>
+#include <Library/ArmCcaInitPeiLib.h>
#include <Library/PeCoffLib.h>
#include <Library/PrePiLib.h>
#include <Library/PrintLib.h>
@@ -34,6 +35,7 @@ PrePiMain (
CHAR8 Buffer[100];
UINTN CharCount;
UINTN StacksSize;
+ RETURN_STATUS RetStatus;
// Initialize the architecture specific bits
ArchInitialize ();
@@ -61,6 +63,12 @@ PrePiMain (
Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32
(PcdSystemMemoryUefiRegionSize));
ASSERT_EFI_ERROR (Status);
+ // Perform the Arm CCA specific initialisations.
+ RetStatus = ArmCcaInitialize ();
+ if (RETURN_ERROR (RetStatus)) {
+ CpuDeadLoop ();
+ }
+
// Initialize the Serial Port
SerialPortInitialize ();
CharCount = AsciiSPrint (
--
'Guid(CE165669-3EF3-493F-B85D-6190EE5B9759)'
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