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Received: from foss.arm.com ([217.140.110.172]) by desiato.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1syWlm-00000004xp2-1tSB for linux-arm-kernel@lists.infradead.org; Wed, 09 Oct 2024 13:30:28 +0000 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 2FEC1FEC; Wed, 9 Oct 2024 06:30:52 -0700 (PDT) Received: from [10.57.85.216] (unknown [10.57.85.216]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7BD383F58B; Wed, 9 Oct 2024 06:30:20 -0700 (PDT) Message-ID: Date: Wed, 9 Oct 2024 14:30:18 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 4/5] KVM: arm64: ptdump: Test PMD_TYPE_MASK for block mapping Content-Language: en-GB To: Anshuman Khandual , linux-arm-kernel@lists.infradead.org Cc: Marc Zyngier , Oliver Upton , James Morse , Catalin Marinas , Will Deacon , Ard Biesheuvel , Mark Rutland , kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org References: <20241005123824.1366397-1-anshuman.khandual@arm.com> <20241005123824.1366397-5-anshuman.khandual@arm.com> From: Ryan Roberts In-Reply-To: <20241005123824.1366397-5-anshuman.khandual@arm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241009_143026_701025_D227F71F X-CRM114-Status: GOOD ( 13.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 05/10/2024 13:38, Anshuman Khandual wrote: > This changes stage-2 ptdump making it test given page table entries against > PMD_TYPE_SECT on PMD_TYPE_MASK bits for a block mapping, as is the case for > stage-1 ptdump. > > Cc: Marc Zyngier > Cc: Oliver Upton > Cc: James Morse > Cc: Catalin Marinas > Cc: Will Deacon > Cc: linux-arm-kernel@lists.infradead.org > Cc: kvmarm@lists.linux.dev > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual Reviewed-by: Ryan Roberts > --- > arch/arm64/kvm/ptdump.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/kvm/ptdump.c b/arch/arm64/kvm/ptdump.c > index e4a342e903e2..098416d7e5c2 100644 > --- a/arch/arm64/kvm/ptdump.c > +++ b/arch/arm64/kvm/ptdump.c > @@ -52,8 +52,8 @@ static const struct ptdump_prot_bits stage2_pte_bits[] = { > .set = "AF", > .clear = " ", > }, { > - .mask = PTE_TABLE_BIT | PTE_VALID, > - .val = PTE_VALID, > + .mask = PMD_TYPE_MASK, > + .val = PMD_TYPE_SECT, > .set = "BLK", > .clear = " ", > },