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| author | Brendan Jackman <brendan.jackman@arm.com> | 2014-05-08 14:59:04 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2014-05-08 14:59:04 +0000 |
| commit | 73ca50096eea3edc64e2c635b6b6d99fbb5572d5 (patch) | |
| tree | c2005188cc6c82478ff1a1e0e3c101297e64d53e /ArmPlatformPkg/Sec | |
| parent | 7eb1d8522a583b2a0a8eea5034be7b30ab14e0f8 (diff) | |
| download | edk2-platforms-73ca50096eea3edc64e2c635b6b6d99fbb5572d5.tar.xz | |
ARM Packages: Use AND instead of BIC instruction with immediate
AARCH64 does not have a BIC-with-immediate instruction. GAS assembles it as a
AND with the immediate inverted, but Clang's integrated assembler emits an
error.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brendan Jackman <brendan.jackman@arm.com>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15509 6f19259b-4bc3-4df7-8a09-765794883524
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
|