diff options
Diffstat (limited to 'ArmPlatformPkg/Sec')
| -rw-r--r-- | ArmPlatformPkg/Sec/AArch64/Helper.S | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/ArmPlatformPkg/Sec/AArch64/Helper.S b/ArmPlatformPkg/Sec/AArch64/Helper.S index 259aca4856..3b58e12292 100644 --- a/ArmPlatformPkg/Sec/AArch64/Helper.S +++ b/ArmPlatformPkg/Sec/AArch64/Helper.S @@ -1,5 +1,5 @@ #========================================================================================
-# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
+# Copyright (c) 2011-2014, ARM Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -31,9 +31,7 @@ ASM_PFX(SwitchToNSExceptionLevel1): orr x0, x0, #(1 << 31) // Set EL1 to be 64bit
// Send all interrupts to their respective Exception levels for EL2
- bic x0, x0, #(1 << 3) // Disable virtual FIQ
- bic x0, x0, #(1 << 4) // Disable virtual IRQ
- bic x0, x0, #(1 << 5) // Disable virtual SError and Abort
+ and x0, x0, #~(ARM_HCR_FMO | ARM_HCR_IMO | ARM_HCR_AMO) // Disable virtual FIQ, IRQ, SError and Abort
msr hcr_el2, x0 // Write back our settings
msr cptr_el2, xzr // Disable copro traps to EL2
|