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Sat, 05 Sep 2026 12:29:56 -0700 (PDT) From: Matt Turner Date: Sat, 05 Sep 2026 15:29:35 -0400 Subject: [PATCH v2 14/22] alpha: select ARCH_HAS_DEBUG_VM_PGTABLE Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260905-arch-kconfig-options-v2-v2-14-83e8245761a2@gmail.com> References: <20260905-arch-kconfig-options-v2-v2-0-83e8245761a2@gmail.com> In-Reply-To: <20260905-arch-kconfig-options-v2-v2-0-83e8245761a2@gmail.com> To: Richard Henderson , Magnus Lindholm , Kees Cook , Marco Elver , Andrey Konovalov , Andrey Ryabinin , Jonathan Corbet , Shuah Khan , Randy Dunlap Cc: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-hardening@vger.kernel.org, linux-doc@vger.kernel.org, Matt Turner X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1827; i=mattst88@gmail.com; h=from:subject:message-id; bh=viFijJiUhOJEOjb4FCpGEYRsqqRivUhUbJK/aUiKGrY=; b=owGbwMvMwCW25rVmCc8sv+mMp9WSGLLm5E7hNFtoYzplxRY+63dfFkRlxigY5Z+pYXovri+cV 7xw42+xjo8sDGJcDDPFFFni1iuyzGrbsdTntPQvmDmsTCBDpEUaGICAhYEvNzGv1EjHSM9U21DP EMjQMYqHyOkxaGQWF5emFummFRQ55OWXJJZk5ucV6+UXpOYVpBfopWWmlWRk5BcVpwKN0MtLLTF 1dXQzMjQwsXS0MHOycDQ1cXZ2MnRyc3R0dnUysjQ3MXC2dDRxtTRn4OIUgLnGYwfD/5JPs6xFXF VL1/x651rI9jRr64e26RN3ctcvuGvq9mTZxwCG/0kznryZkpTO8CgiQUjr9v/wqXP//M96ZbR+Q xUz2//onTwA X-Developer-Key: i=mattst88@gmail.com; a=openpgp; fpr=3BB639E56F861FA2E86505690FDD682D974CA72A CONFIG_DEBUG_VM_PGTABLE runs a boot-time self test over the page table helpers: the protection bit accessors, pte_modify(), the swap entry encoding including the exclusive marker, and, where the architecture supports them, the huge page helpers. Alpha implements everything the test needs for a three-level page table without huge page support. Assisted-by: Claude:claude-opus-5 Signed-off-by: Matt Turner Also mark Alpha as "ok" in the debug-vm-pgtable feature matrix. Tested-by: Magnus Lindholm Reviewed-by: Magnus Lindholm --- Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 2 +- arch/alpha/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 156687a7436d..b4e2374fe201 100644 --- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt +++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt @@ -6,7 +6,7 @@ ----------------------- | arch |status| ----------------------- - | alpha: | TODO | + | alpha: | ok | | arc: | ok | | arm: | TODO | | arm64: | ok | diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index da4ec8399517..4bd5e913baaf 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -6,6 +6,7 @@ config ALPHA select HAVE_SYSCALL_TRACEPOINTS select ARCH_32BIT_USTAT_F_TINODE select ARCH_HAS_CURRENT_STACK_POINTER + select ARCH_HAS_DEBUG_VM_PGTABLE select ARCH_HAS_DMA_OPS if PCI select ARCH_HAS_FAST_MULTIPLIER select ARCH_HAS_GCOV_PROFILE_ALL -- 2.54.0