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(parent: f70b3a2) | patch
arm64: idreg-override: use early FDT mapping in ID map
authorArd Biesheuvel <ardb@kernel.org>
Fri, 24 Jun 2022 15:06:45 +0000 (17:06 +0200)
committerWill Deacon <will@kernel.org>
Fri, 24 Jun 2022 16:18:10 +0000 (17:18 +0100)
commita004393f45d9a55e55d76f252914bdddffdde204
treeed02beb9a7def334f64a249636f5c72e2d7443b2tree | snapshot
parentf70b3a23324a2d31efb83cc01302acb343e4ec1bcommit | diff
arm64: idreg-override: use early FDT mapping in ID map

Instead of calling into the kernel to map the FDT into the kernel page
tables before even calling start_kernel(), let's switch to the initial,
temporary mapping of the device tree that has been added to the ID map.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220624150651.1358849-16-ardb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
arch/arm64/kernel/head.S diff | blob | blame | history
arch/arm64/kernel/idreg-override.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)