From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 20276473C67; Mon, 14 Sep 2026 13:52:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789393948; cv=none; b=tND/xHe7vESYXvTBA+BG6mBHWVLkIN02gmF+Vbud+gTm9xTjwYnVrpuBlbxVdTMu/CjjWan5ou/TgI4f5eu/rQn+RPDQNGT1MQb8FUNzEfR8hA3FPRk37xzaGyH1ff/gI8Hv4JshBHvoz2eTVdtTfCJF9ru1ZXRdqtLF62MOtps= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789393948; c=relaxed/simple; bh=e4ntXcUDjdHd2MfAB02Vr1Et9b59XeXUsYWhphwiZL0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=AV6dvD2WoW2DfeTv/TOj4IHxClYfeL3eVBUHSafIZHOFeXcPw2Az8GY9ZQ/UBIOUmYWb91+yLkjxMBDlwfOiH5L1xVASFj07Ll9VQUKTf+Nhvb915hVsR+OGxKsKzH2/qDmtSMXyeHO8TjFKxn/xHrm/4kpjMYZnDujtO2i5nrA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=gHy6581v; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="gHy6581v" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E6DC61570; Mon, 14 Sep 2026 06:52:22 -0700 (PDT) Received: from [127.0.1.1] (e142334-100.cambridge.arm.com [10.2.198.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4FC283F882; Mon, 14 Sep 2026 06:52:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1789393946; bh=e4ntXcUDjdHd2MfAB02Vr1Et9b59XeXUsYWhphwiZL0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=gHy6581v3Osy62vEgipfLO7U9hGflqXQ1eCPuqXwQrCBqd/7/OFx2bCOuwhgz4k3E ZnsOLh53E6Jlr+SeHyB3quPKCabxE0k+Qxa0dkfRIjMVgipHmzQYWXIFYq3OLPXMss Mc8NOBq/1UzJG/ibmkDVamAsZWuVXbHEJOWLMyeo= From: Muhammad Usama Anjum Date: Mon, 14 Sep 2026 14:51:36 +0100 Subject: [PATCH 6/6] arm64: enable a distinct type for HW PTEs 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: <20260914-pte0_arm-v1-6-bb53b663e396@arm.com> References: <20260914-pte0_arm-v1-0-bb53b663e396@arm.com> In-Reply-To: <20260914-pte0_arm-v1-0-bb53b663e396@arm.com> To: Catalin Marinas , Will Deacon , Mark Rutland , Ard Biesheuvel , Ilias Apalodimas , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, Muhammad Usama Anjum X-Mailer: b4 0.16.0 With HW PTE pointers and direct HW PTE accesses converted, arm64 can use the generic hw_pte_t wrapper instead of the pte_t alias. Select ARCH_HAS_HW_PTE_T to give HW PTEs and SW PTE values distinct C types. Signed-off-by: Muhammad Usama Anjum --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 2bbeded33da0d..42841d5e2ed26 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -31,6 +31,7 @@ config ARM64 select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_GIGANTIC_PAGE + select ARCH_HAS_HW_PTE_T select ARCH_HAS_KCOV select ARCH_HAS_KERNEL_FPU_SUPPORT if KERNEL_MODE_NEON select ARCH_HAS_KEEPINITRD -- 2.47.3