3006a0826c
This restores a performance boost introduced via #6644, which appears to have been accidentally reverted in 021af5d. Additionally, a note was added to the config to indicate why that setting is important.
A write up for this issue was posted to the Armbian forums at https://forum.armbian.com/topic/57887-arm64-performance-regression-in-qemu/.
45 lines
1.8 KiB
Plaintext
45 lines
1.8 KiB
Plaintext
#
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# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (c) 2013-2023 Igor Pecovnik, igor@armbian.com
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#
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# This file is a part of the Armbian Build Framework
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# https://github.com/armbian/build/
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#
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# 'common.conf' is already sourced when this arch is sourced.
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declare -g ARCH='arm64'
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declare -g ARCHITECTURE='arm64'
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declare -g KERNEL_SRC_ARCH='arm64'
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declare -g QEMU_BINARY='qemu-aarch64-static'
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# Linux root has a different Type-UUID for every architecture
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# See https://uapi-group.org/specifications/specs/discoverable_partitions_specification/
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declare -g PARTITION_TYPE_UUID_ROOT="B921B045-1DF0-41C3-AF44-4C6F280D3FAE" # "Linux root (ARM-64)"
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# Defaults, if not set by board or family.
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declare -g KERNEL_IMAGE_TYPE="${KERNEL_IMAGE_TYPE:-"Image"}"
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declare -g KERNEL_INSTALL_TYPE="${KERNEL_INSTALL_TYPE:-"install"}"
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declare -g NAME_KERNEL="${NAME_KERNEL:-"Image"}"
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declare -g NAME_INITRD="${NAME_INITRD:-"uInitrd"}"
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declare -g ATF_COMPILER="${ATF_COMPILER:-"aarch64-linux-gnu-"}"
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declare -g KERNEL_COMPILER="${KERNEL_COMPILER:-"aarch64-linux-gnu-"}"
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declare -g UBOOT_COMPILER="${UBOOT_COMPILER:-"aarch64-linux-gnu-"}"
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declare -g INITRD_ARCH="${INITRD_ARCH:-"arm64"}"
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if [[ $ATF_COMPILE != "no" ]]; then
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# @TODO: rpardini: This shouldn't be here. Who uses this default? Let's move it to family code.
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declare -g ATFSOURCE="${ATFSOURCE:-"https://github.com/ARM-software/arm-trusted-firmware"}"
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declare -g ATFDIR="${ATFDIR:-"arm-trusted-firmware"}"
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declare -g ATFBRANCH="${ATFBRANCH:-"commit:af220ebbe467aa580e6b9ba554676f78ffec930f"}"
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else
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display_alert "arch code" "ATF_COMPILE is 'no'" "debug"
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fi
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# IMPORTANT - Prevents ~5x slowdown caused by CVE-2023-4039 patchset, when
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# emulating ARM64 software via qemu. Has no effect when run on native ARM64.
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declare -gx QEMU_CPU="cortex-a53"
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true # make sure to exit with 0 status; this protects against shortcircuits etc above.
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