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 571CB1B87F0 for ; Mon, 10 Mar 2025 06:38:41 +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=1741588724; cv=none; b=mmwMjQwLcvEoRj0DmbtjAmT4aq4d/pdTwJHw8tNvnzzqZuT/GjGFN6ZW4SQQguuY9PYWRkFWbBqUQ4eQI44QN426M4ypp85NWKteq1eFqiS4sETbGsQ7eJI2WRzSbVgVIEo7mGsxIZfACXmurhyH1pJT/RDMprbOrV9umk35kIo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741588724; c=relaxed/simple; bh=GcUQaczN2hMHgbVRjK+6slnDE3ztZsb62TwjLId28Ck=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=XnBkTeDUACl731anS+9AEuodxkWm6Rz1I7/DH0qzFcIOvdN5yApWNUJgrguf+T0hNhFmItDYT7wg7iZO3w3Ih1w3ZGWd9s/19Vj93rN60k8Hv8fomKqJS1bLNiI++bTVgfAotmqUex81D8BQdW4nzl6a7HHyFHqb/QX9QeBa4hY= 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; 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 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 3A3DC15A1; Sun, 9 Mar 2025 23:38:52 -0700 (PDT) Received: from [10.163.42.69] (unknown [10.163.42.69]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A4AF43F673; Sun, 9 Mar 2025 23:38:36 -0700 (PDT) Message-ID: Date: Mon, 10 Mar 2025 12:08:36 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V2 0/8] arm64/mm: Drop PXD_TABLE_BIT To: arm-kernel@lists.infradead.org Cc: Marc Zyngier , Oliver Upton , James Morse , Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20250221044227.1145393-1-anshuman.khandual@arm.com> Content-Language: en-US From: Anshuman Khandual In-Reply-To: <20250221044227.1145393-1-anshuman.khandual@arm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2/21/25 10:12, Anshuman Khandual wrote: > Remove the PXX_TABLE_BIT definitions and instead rely on PXX_TYPE_MASK, > PXX_TYPE_SECT and PXX_TYPE_TABLE. The latter versions are more abstract > and also include the PTE_VALID bit. > > This abstraction is valuable for the impending D128 page table support, > which doesn't have a single page table bit to determine table vs block. > Instead it has the skip level (SKL) field, where it will consider 0 to > mean table and any other value to mean a block entry. So PXX_TABLE_BIT > therefore doesn't fit into the D128 model well, but the type fields do. > > This series applies on v6.14-rc3. > > Changes in V2: > > - Changed pmd_mkhuge() and pud_mkhuge() implementation > - Changed pud_bad() implementation with an additional patch > > Changes in V1: > > https://lore.kernel.org/all/20241005123824.1366397-1-anshuman.khandual@arm.com/ > > Cc: Marc Zyngier > Cc: Oliver Upton > Cc: James Morse > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Ard Biesheuvel > Cc: Ryan Roberts > Cc: Mark Rutland > Cc: kvmarm@lists.linux.dev > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > > Anshuman Khandual (6): > KVM: arm64: ptdump: Test PMD_TYPE_MASK for block mapping > arm64/ptdump: Test PMD_TYPE_MASK for block mapping > arm64/mm: Clear PXX_TYPE_MASK in mk_[pmd|pud]_sect_prot() > arm64/mm: Clear PXX_TYPE_MASK and set PXD_TYPE_SECT in [pmd|pud]_mkhuge() > arm64/mm: Check PXD_TYPE_TABLE in [p4d|pgd]_bad() > arm64/mm: Drop PXD_TABLE_BIT > > Ryan Roberts (2): > arm64/mm: Check PUD_TYPE_TABLE in pud_bad() > arm64/mm: Check pmd_table() in pmd_trans_huge() > > arch/arm64/include/asm/pgtable-hwdef.h | 5 -- > arch/arm64/include/asm/pgtable.h | 65 ++++++++++++++++++-------- > arch/arm64/kvm/ptdump.c | 4 +- > arch/arm64/mm/ptdump.c | 4 +- > 4 files changed, 50 insertions(+), 28 deletions(-) > Gentle ping again. Does this series look okay or is there any objection ?