linux-kernel - Re: [PATCH V2 5/5] mm: Rename GENERIC_PTDUMP and PTDUMP

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <137a241a-324a-45a9-a60b-d65f27dc4fc2@arm.com>
Date: Mon, 24 Feb 2025 19:19:47 +0530
From: Anshuman Khandual <anshuman.khandual@....com>
To: Christophe Leroy <christophe.leroy@...roup.eu>, linux-mm@...ck.org
Cc: steven.price@....com, Andrew Morton <akpm@...ux-foundation.org>,
 Mark Rutland <mark.rutland@....com>, kvmarm@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
 linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
 linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Jonathan Corbet <corbet@....net>, Marc Zyngier <maz@...nel.org>,
 Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>,
 Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt
 <palmer@...belt.com>, Heiko Carstens <hca@...ux.ibm.com>,
 Vasily Gorbik <gor@...ux.ibm.com>, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH V2 5/5] mm: Rename GENERIC_PTDUMP and PTDUMP_CORE



On 2/24/25 17:31, Christophe Leroy wrote:
> 
> 
> Le 17/02/2025 à 05:22, Anshuman Khandual a écrit :
>> Platforms subscribe into generic ptdump implementation via GENERIC_PTDUMP.
>> But generic ptdump gets enabled via PTDUMP_CORE. These configs combination
>> is confusing as they sound very similar and does not differentiate between
>> platform's feature subscription and feature enablement for ptdump. Rename
>> the configs as ARCH_HAS_PTDUMP and PTDUMP making it more clear and improve
>> readability.
>>
>> Cc: Catalin Marinas <catalin.marinas@....com>
>> Cc: Will Deacon <will@...nel.org>
>> Cc: Jonathan Corbet <corbet@....net>
>> Cc: Marc Zyngier <maz@...nel.org>
>> Cc: Michael Ellerman <mpe@...erman.id.au>
>> Cc: Nicholas Piggin <npiggin@...il.com>
>> Cc: Paul Walmsley <paul.walmsley@...ive.com>
>> Cc: Palmer Dabbelt <palmer@...belt.com>
>> Cc: Heiko Carstens <hca@...ux.ibm.com>
>> Cc: Vasily Gorbik <gor@...ux.ibm.com>
>> Cc: Thomas Gleixner <tglx@...utronix.de>
>> Cc: Ingo Molnar <mingo@...hat.com>
>> Cc: Andrew Morton <akpm@...ux-foundation.org>
>> Cc: linux-arm-kernel@...ts.infradead.org
>> Cc: linux-doc@...r.kernel.org
>> Cc: linux-kernel@...r.kernel.org
>> Cc: kvmarm@...ts.linux.dev
>> Cc: linuxppc-dev@...ts.ozlabs.org
>> Cc: linux-riscv@...ts.infradead.org
>> Cc: linux-s390@...r.kernel.org
>> Cc: linux-mm@...ck.org
>> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
>> ---
>> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
>> index 7612c52e9b1e..5aef2aa4103c 100644
>> --- a/arch/riscv/Kconfig
>> +++ b/arch/riscv/Kconfig
>> @@ -43,6 +43,7 @@ config RISCV
>>       select ARCH_HAS_PMEM_API
>>       select ARCH_HAS_PREEMPT_LAZY
>>       select ARCH_HAS_PREPARE_SYNC_CORE_CMD
>> +    select ARCH_HAS_PTDUMP
> 
> Is it OK to drop the 'if MMU' from below ?

Sure, will add it back.

> 
>>       select ARCH_HAS_PTE_DEVMAP if 64BIT && MMU
>>       select ARCH_HAS_PTE_SPECIAL
>>       select ARCH_HAS_SET_DIRECT_MAP if MMU
>> @@ -112,7 +113,6 @@ config RISCV
>>       select GENERIC_IRQ_SHOW_LEVEL
>>       select GENERIC_LIB_DEVMEM_IS_ALLOWED
>>       select GENERIC_PCI_IOMAP
>> -    select GENERIC_PTDUMP if MMU
>>       select GENERIC_SCHED_CLOCK
>>       select GENERIC_SMP_IDLE_THREAD
>>       select GENERIC_TIME_VSYSCALL if MMU && 64BIT