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Message-ID: <51421bb3-9075-d7e9-1750-0553a1ebe64a@c-s.fr>
Date: Thu, 27 Feb 2020 11:42:33 +0100
From: Christophe Leroy <christophe.leroy@....fr>
To: Anshuman Khandual <anshuman.khandual@....com>, linux-mm@...ck.org
Cc: Heiko Carstens <heiko.carstens@...ibm.com>,
Paul Mackerras <paulus@...ba.org>,
"H. Peter Anvin" <hpa@...or.com>, linux-riscv@...ts.infradead.org,
Will Deacon <will@...nel.org>, linux-arch@...r.kernel.org,
linux-s390@...r.kernel.org, x86@...nel.org,
Mike Rapoport <rppt@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
Ingo Molnar <mingo@...hat.com>,
Catalin Marinas <catalin.marinas@....com>,
linux-snps-arc@...ts.infradead.org,
Vasily Gorbik <gor@...ux.ibm.com>,
Borislav Petkov <bp@...en8.de>,
Paul Walmsley <paul.walmsley@...ive.com>,
"Kirill A . Shutemov" <kirill@...temov.name>,
Thomas Gleixner <tglx@...utronix.de>,
linux-arm-kernel@...ts.infradead.org,
Vineet Gupta <vgupta@...opsys.com>,
linux-kernel@...r.kernel.org, Palmer Dabbelt <palmer@...belt.com>,
Andrew Morton <akpm@...ux-foundation.org>,
linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] mm/debug: Add tests validating arch page table helpers
for core features
Le 27/02/2020 à 11:33, Anshuman Khandual a écrit :
> This adds new tests validating arch page table helpers for these following
> core memory features. These tests create and test specific mapping types at
> various page table levels.
>
> * SPECIAL mapping
> * PROTNONE mapping
> * DEVMAP mapping
> * SOFTDIRTY mapping
> * SWAP mapping
> * MIGRATION mapping
> * HUGETLB mapping
For testing HUGETLB mappings, you also have to include tests of hugepd
functions/helpers. Not all archictures have hugepage size which matches
with page tables levels (e.g. powerpc). Those architectures use hugepd_t.
Christophe
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