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b2473a3597
__pa() is only intended to be used for linear map addresses and using
it for initial_boot_params which is in fixmap for arm64 will give an
incorrect value. Hence save the physical address when it is known at
boot time when calling early_init_dt_scan for arm64 and use it at kexec
time instead of converting the virtual address using __pa().
Note that arm64 doesn't need the FDT region reserved in the DT as the
kernel explicitly reserves the passed in FDT. Therefore, only a debug
warning is fixed with this change.
Reported-by: Breno Leitao <leitao@debian.org>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Usama Arif <usamaarif642@gmail.com>
Fixes: ac10be5cdb ("arm64: Use common of_kexec_alloc_and_setup_fdt()")
Link: https://lore.kernel.org/r/20241023171426.452688-1-usamaarif642@gmail.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
31 lines
796 B
C
31 lines
796 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Procedures for creating, accessing and interpreting the device tree.
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*
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* Paul Mackerras August 1996.
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* Copyright (C) 1996-2005 Paul Mackerras.
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*
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* Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
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* {engebret|bergner}@us.ibm.com
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*/
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/memblock.h>
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#include <linux/of_fdt.h>
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void __init early_init_devtree(void *params)
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{
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pr_debug(" -> early_init_devtree(%p)\n", params);
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early_init_dt_scan(params, __pa(params));
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if (!strlen(boot_command_line))
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strscpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
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memblock_allow_resize();
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pr_debug("Phys. mem: %lx\n", (unsigned long) memblock_phys_mem_size());
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pr_debug(" <- early_init_devtree()\n");
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}
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