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| author | Usama Arif <usamaarif642@gmail.com> | 2024-10-23 18:14:26 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-09 10:31:56 +0100 |
| commit | 1103d3b5a5025aba1ea1fcee287c8858b175bec4 (patch) | |
| tree | dbe2fb1bfd4117e502b964e74a04d08c8fc55f10 /arch/um/kernel | |
| parent | be0a96cfa9c06cee30af45a583a1c18a8d15f47a (diff) | |
| download | linux-1103d3b5a5025aba1ea1fcee287c8858b175bec4.tar.gz linux-1103d3b5a5025aba1ea1fcee287c8858b175bec4.tar.bz2 linux-1103d3b5a5025aba1ea1fcee287c8858b175bec4.zip | |
of/fdt: add dt_phys arg to early_init_dt_scan and early_init_dt_verify
[ Upstream commit b2473a359763e27567993e7d8f37de82f57a0829 ]
__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: ac10be5cdbfa ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/um/kernel')
| -rw-r--r-- | arch/um/kernel/dtb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/um/kernel/dtb.c b/arch/um/kernel/dtb.c index 4954188a6a09..8d78ced9e08f 100644 --- a/arch/um/kernel/dtb.c +++ b/arch/um/kernel/dtb.c @@ -17,7 +17,7 @@ void uml_dtb_init(void) area = uml_load_file(dtb, &size); if (area) { - if (!early_init_dt_scan(area)) { + if (!early_init_dt_scan(area, __pa(area))) { pr_err("invalid DTB %s\n", dtb); memblock_free(area, size); return; |