historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/roms/edk2/ArmVirtPkg/PrePi/AArch64/ArchPrePi.c
2024-01-16 11:20:27 -06:00

27 lines
482 B
C

/** @file
*
* Copyright (c) 2011-2013, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*
**/
#include "PrePi.h"
#include <Chipset/AArch64.h>
VOID
ArchInitialize (
VOID
)
{
// Enable Floating Point
if (FixedPcdGet32 (PcdVFPEnabled)) {
ArmEnableVFP ();
}
if (ArmReadCurrentEL () == AARCH64_EL2) {
// Trap General Exceptions. All exceptions that would be routed to EL1 are routed to EL2
ArmWriteHcr (ARM_HCR_TGE);
}
}