From: Ard Biesheuvel <ardb@kernel.org>
To: linux-arm-kernel@lists.infradead.org
Cc: Ard Biesheuvel <ardb@kernel.org>, Marc Zyngier <maz@kernel.org>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Kees Cook <keescook@chromium.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Mark Brown <broonie@kernel.org>,
Anshuman Khandual <anshuman.khandual@arm.com>
Subject: [PATCH v5 01/21] arm64: head: move kimage_vaddr variable into C file
Date: Fri, 24 Jun 2022 17:06:31 +0200 [thread overview]
Message-ID: <20220624150651.1358849-2-ardb@kernel.org> (raw)
In-Reply-To: <20220624150651.1358849-1-ardb@kernel.org>
This variable definition does not need to be in head.S so move it out.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
arch/arm64/kernel/head.S | 7 -------
arch/arm64/mm/mmu.c | 3 +++
2 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 6a98f1a38c29..1cdecce552bb 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -469,13 +469,6 @@ SYM_FUNC_START_LOCAL(__primary_switched)
ASM_BUG()
SYM_FUNC_END(__primary_switched)
- .pushsection ".rodata", "a"
-SYM_DATA_START(kimage_vaddr)
- .quad _text
-SYM_DATA_END(kimage_vaddr)
-EXPORT_SYMBOL(kimage_vaddr)
- .popsection
-
/*
* end early head section, begin head code that is also used for
* hotplug and needs to have the same protections as the text region
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index c5563ff990da..7148928e3932 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -49,6 +49,9 @@ u64 idmap_ptrs_per_pgd = PTRS_PER_PGD;
u64 __section(".mmuoff.data.write") vabits_actual;
EXPORT_SYMBOL(vabits_actual);
+u64 kimage_vaddr __ro_after_init = (u64)&_text;
+EXPORT_SYMBOL(kimage_vaddr);
+
u64 kimage_voffset __ro_after_init;
EXPORT_SYMBOL(kimage_voffset);
--
2.35.1
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next prev parent reply other threads:[~2022-06-24 15:08 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-24 15:06 [PATCH v5 00/21] arm64: refactor boot flow Ard Biesheuvel
2022-06-24 15:06 ` Ard Biesheuvel [this message]
2022-06-26 9:22 ` [PATCH v5 01/21] arm64: head: move kimage_vaddr variable into C file Mark Rutland
2022-06-24 15:06 ` [PATCH v5 02/21] arm64: mm: make vabits_actual a build time constant if possible Ard Biesheuvel
2022-06-26 9:31 ` Mark Rutland
2022-06-24 15:06 ` [PATCH v5 03/21] arm64: head: move assignment of idmap_t0sz to C code Ard Biesheuvel
2022-06-26 9:36 ` Mark Rutland
2022-06-24 15:06 ` [PATCH v5 04/21] arm64: head: drop idmap_ptrs_per_pgd Ard Biesheuvel
2022-06-26 9:37 ` Mark Rutland
2022-06-24 15:06 ` [PATCH v5 05/21] arm64: head: simplify page table mapping macros (slightly) Ard Biesheuvel
2022-06-26 10:07 ` Mark Rutland
2022-06-24 15:06 ` [PATCH v5 06/21] arm64: head: switch to map_memory macro for the extended ID map Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 07/21] arm64: head: split off idmap creation code Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 08/21] arm64: kernel: drop unnecessary PoC cache clean+invalidate Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 09/21] arm64: head: pass ID map root table address to __enable_mmu() Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 10/21] arm64: mm: provide idmap pointer to cpu_replace_ttbr1() Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 11/21] arm64: head: add helper function to remap regions in early page tables Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 12/21] arm64: head: cover entire kernel image in initial ID map Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 13/21] arm64: head: use relative references to the RELA and RELR tables Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 14/21] arm64: head: create a temporary FDT mapping in the initial ID map Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 15/21] arm64: idreg-override: use early FDT mapping in " Ard Biesheuvel
2022-07-11 15:39 ` Mark Rutland
2022-07-12 17:03 ` Ard Biesheuvel
2022-07-13 14:09 ` Mark Rutland
2022-06-24 15:06 ` [PATCH v5 16/21] arm64: head: factor out TTBR1 assignment into a macro Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 17/21] arm64: head: populate kernel page tables with MMU and caches on Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 18/21] arm64: head: record CPU boot mode after enabling the MMU Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 19/21] arm64: kaslr: defer initialization to initcall where permitted Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 20/21] arm64: head: avoid relocating the kernel twice for KASLR Ard Biesheuvel
2022-06-24 15:06 ` [PATCH v5 21/21] arm64: setup: drop early FDT pointer helpers Ard Biesheuvel
2022-06-24 17:13 ` [PATCH v5 00/21] arm64: refactor boot flow Will Deacon
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