linux-kernel - [PATCH] arm: Enable ARCH_HAS_DEBUG_VM

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Date: Tue, 4 Jun 2024 16:45:12 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <corbet@....net>, <linux@...linux.org.uk>, <ardb@...nel.org>,
	<arnd@...db.de>, <afd@...com>, <akpm@...ux-foundation.org>,
	<rmk+kernel@...linux.org.uk>, <linus.walleij@...aro.org>,
	<eric.devolder@...cle.com>, <robh@...nel.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH] arm: Enable ARCH_HAS_DEBUG_VM_PGTABLE

arm32 kernel successfully build and run with CONFIG_DEBUG_VM_PGTABLE=y,
enable arch support for it. This allows the pgtable tests to be built and
allow to enable page table boot-up checks.

Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
---
 Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 2 +-
 arch/arm/Kconfig                                               | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
index bbf029f095cb..afb7371fb518 100644
--- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
+++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
@@ -8,7 +8,7 @@
     -----------------------
     |       alpha: | TODO |
     |         arc: |  ok  |
-    |         arm: | TODO |
+    |         arm: |  ok  |
     |       arm64: |  ok  |
     |        csky: | TODO |
     |     hexagon: | TODO |
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ee5115252aac..955d7d182cec 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -9,6 +9,7 @@ config ARM
 	select ARCH_HAS_CPU_FINALIZE_INIT if MMU
 	select ARCH_HAS_CURRENT_STACK_POINTER
 	select ARCH_HAS_DEBUG_VIRTUAL if MMU
+	select ARCH_HAS_DEBUG_VM_PGTABLE
 	select ARCH_HAS_DMA_ALLOC if MMU
 	select ARCH_HAS_DMA_WRITE_COMBINE if !ARM_DMA_MEM_BUFFERABLE
 	select ARCH_HAS_ELF_RANDOMIZE
-- 
2.34.1