linux-kernel - Re: [PATCH 1/2] kexec: fix KEXEC

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Date:   Mon, 23 Oct 2023 18:04:06 +0200
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Conor Dooley" <conor@...nel.org>,
        "Arnd Bergmann" <arnd@...nel.org>
Cc:     "Andrew Morton" <akpm@...ux-foundation.org>,
        "Eric DeVolder" <eric.devolder@...cle.com>,
        "Herbert Xu" <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org,
        "Nicholas Piggin" <npiggin@...il.com>,
        "Christophe Leroy" <christophe.leroy@...roup.eu>,
        "Paul Walmsley" <paul.walmsley@...ive.com>,
        "Palmer Dabbelt" <palmer@...belt.com>,
        "Albert Ou" <aou@...s.berkeley.edu>,
        "Heiko Carstens" <hca@...ux.ibm.com>,
        "Vasily Gorbik" <gor@...ux.ibm.com>,
        "Alexander Gordeev" <agordeev@...ux.ibm.com>,
        "Christian Borntraeger" <borntraeger@...ux.ibm.com>,
        "Sven Schnelle" <svens@...ux.ibm.com>,
        "Thomas Gleixner" <tglx@...utronix.de>,
        "Ingo Molnar" <mingo@...hat.com>, "Borislav Petkov" <bp@...en8.de>,
        "Dave Hansen" <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        "Peter Zijlstra" <peterz@...radead.org>,
        "Ard Biesheuvel" <ardb@...nel.org>, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-s390@...r.kernel.org
Subject: Re: [PATCH 1/2] kexec: fix KEXEC_FILE dependencies

On Mon, Oct 23, 2023, at 17:37, Conor Dooley wrote:
> On Mon, Oct 23, 2023 at 01:01:54PM +0200, Arnd Bergmann wrote:

>> index 25474f8c12b79..f571bad2d22d0 100644
>> --- a/arch/riscv/Kconfig
>> +++ b/arch/riscv/Kconfig
>> @@ -687,9 +687,7 @@ config ARCH_SELECTS_KEXEC_FILE
>>  	select KEXEC_ELF
>>  
>>  config ARCH_SUPPORTS_KEXEC_PURGATORY
>> -	def_bool KEXEC_FILE
>> -	depends on CRYPTO=y
>> -	depends on CRYPTO_SHA256=y
>> +	def_bool y
>
> This being the problem, KEXEC_FILE is 64-bit only.
>
> IIRC I commented on this same thing during the original conversion
> patches.

Does it work with this patch on top?

--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -687,7 +687,7 @@ config ARCH_SELECTS_KEXEC_FILE
        select KEXEC_ELF
 
 config ARCH_SUPPORTS_KEXEC_PURGATORY
-       def_bool y
+       def_bool ARCH_SUPPORTS_KEXEC_FILE
 
 config ARCH_SUPPORTS_CRASH_DUMP
        def_bool y


     Arnd