netdev - Re: [PATCH v2 07/29] ARM: add kexec_file

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]

Date:   Fri, 25 Jan 2019 16:21:06 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Catalin Marinas <catalin.marinas@....com>
Cc:     Arnd Bergmann <arnd@...db.de>, y2038@...ts.linaro.org,
        linux-api@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, mattst88@...il.com,
        will.deacon@....com, tony.luck@...el.com, fenghua.yu@...el.com,
        geert@...ux-m68k.org, monstr@...str.eu, paul.burton@...s.com,
        deller@....de, benh@...nel.crashing.org, mpe@...erman.id.au,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com, dalias@...c.org,
        davem@...emloft.net, luto@...nel.org, tglx@...utronix.de,
        mingo@...hat.com, hpa@...or.com, x86@...nel.org,
        jcmvbkbc@...il.com, akpm@...ux-foundation.org,
        deepa.kernel@...il.com, ebiederm@...ssion.com,
        firoz.khan@...aro.org, linux-alpha@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
        linux-m68k@...ts.linux-m68k.org, linux-mips@...r.kernel.org,
        linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
        sparclinux@...r.kernel.org, netdev@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v2 07/29] ARM: add kexec_file_load system call number

On Fri, Jan 25, 2019 at 03:43:59PM +0000, Catalin Marinas wrote:
> On Fri, Jan 18, 2019 at 05:18:13PM +0100, Arnd Bergmann wrote:
> > diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
> > index 86de9eb34296..20ed7e026723 100644
> > --- a/arch/arm/tools/syscall.tbl
> > +++ b/arch/arm/tools/syscall.tbl
> > @@ -415,3 +415,4 @@
> >  398	common	rseq			sys_rseq
> >  399	common	io_pgetevents		sys_io_pgetevents
> >  400	common	migrate_pages		sys_migrate_pages
> > +401	common	kexec_file_load		sys_kexec_file_load
> 
> I presume on arm32 this would still return -ENOSYS.

Yes, I already checked.  If CONFIG_KEXEC_FILE is not set, then
kernel/kexec_file.c is not built, and we fall back to the stub
in kernel/sys_ni.c.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
According to speedtest.net: 11.9Mbps down 500kbps up