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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-11-23 13:14:29 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-11-29 18:54:36 +0100 |
| commit | 2f9b248af82073aed40c0b86d9f9d7074f5fa36a (patch) | |
| tree | 27937ad398fccafc584412ccc33db3d9e7a31165 /ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64 | |
| parent | 95d04ebca8be8f71a23e85a2f4822ba90a2e32cc (diff) | |
| download | edk2-2f9b248af82073aed40c0b86d9f9d7074f5fa36a.zip edk2-2f9b248af82073aed40c0b86d9f9d7074f5fa36a.tar.gz edk2-2f9b248af82073aed40c0b86d9f9d7074f5fa36a.tar.bz2 | |
ArmVirtPkg/XenVirtMemInfoLib: refactor reading of the PA space size
Use the new ArmLib helper to read the CPU's physical address limit
so we can drop our own homecooked one.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64')
| -rw-r--r-- | ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S b/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S deleted file mode 100644 index a1f6a19..0000000 --- a/ArmVirtPkg/Library/XenVirtMemInfoLib/AArch64/PhysAddrTop.S +++ /dev/null @@ -1,39 +0,0 @@ -#
-# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
-# Copyright (c) 2016-2017, Linaro Limited. All rights reserved.
-#
-# This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution. The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-#
-
-#include <AsmMacroIoLibV8.h>
-
-//EFI_PHYSICAL_ADDRESS
-//GetPhysAddrTop (
-// VOID
-// );
-ASM_FUNC(ArmGetPhysAddrTop)
- mrs x0, id_aa64mmfr0_el1
- adr x1, .LPARanges
- and x0, x0, #7
- ldrb w1, [x1, x0]
- mov x0, #1
- lsl x0, x0, x1
- ret
-
-//
-// Bits 0..2 of the AA64MFR0_EL1 system register encode the size of the
-// physical address space support on this CPU:
-// 0 == 32 bits, 1 == 36 bits, etc etc
-// 6 and 7 are reserved
-//
-.LPARanges:
- .byte 32, 36, 40, 42, 44, 48, -1, -1
-
-ASM_FUNCTION_REMOVE_IF_UNREFERENCED
|