From: Thiago Jung Bauermann <bauerman@linux•vnet.ibm.com>
To: Stephen Rothwell <sfr@canb•auug.org.au>
Cc: kexec@lists•infradead.org, linux-ima-devel@lists•sourceforge.net,
linuxppc-dev@lists•ozlabs.org, x86@kernel•org,
linux-kernel@vger•kernel.org,
Eric Biederman <ebiederm@xmission•com>,
Dave Young <dyoung@redhat•com>, Vivek Goyal <vgoyal@redhat•com>,
Baoquan He <bhe@redhat•com>,
Michael Ellerman <mpe@ellerman•id.au>,
Stewart Smith <stewart@linux•vnet.ibm.com>,
Mimi Zohar <zohar@linux•vnet.ibm.com>,
Andrew Morton <akpm@linux-foundation•org>,
Thomas Gleixner <tglx@linutronix•de>,
Ingo Molnar <mingo@redhat•com>, "H. Peter Anvin" <hpa@zytor•com>
Subject: Re: [PATCH v5 1/5] kexec_file: Include the purgatory segment in the kexec image checksum.
Date: Wed, 14 Sep 2016 22:51:36 -0300 [thread overview]
Message-ID: <4542776.bqQjVnlNjh@hactar> (raw)
In-Reply-To: <20160915114308.19195f71@canb.auug.org.au>
Hello Stephen,
Am Donnerstag, 15 September 2016, 11:43:08 schrieb Stephen Rothwell:
> Hi Thiago,
>
> > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> > index 2a1f0ce7c59a..dcd1679f3005 100644
> > --- a/arch/x86/Kconfig
> > +++ b/arch/x86/Kconfig
> > @@ -1792,6 +1792,11 @@ config SECCOMP
> >
> > source kernel/Kconfig.hz
> >
> > +# x86 needs to relocate the purgatory after the checksum is calculated,
> > +# therefore the purgatory cannot be part of the kexec image checksum.
> > +config ARCH_MODIFIES_KEXEC_PURGATORY
> > + bool
> > +
>
> The above should probably be in arch/Kconfig (with an appropriately
> changed comment) since it is used in generic code.
Thanks for your quick response! I'll make that change tomorrow and send an
updated version of just this patch.
--
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center
next prev parent reply other threads:[~2016-09-15 1:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-15 0:54 [PATCH v5 0/5] kexec_file: Add buffer hand-over for the next kernel Thiago Jung Bauermann
2016-09-15 0:54 ` [PATCH v5 1/5] kexec_file: Include the purgatory segment in the kexec image checksum Thiago Jung Bauermann
2016-09-15 1:43 ` Stephen Rothwell
2016-09-15 1:51 ` Thiago Jung Bauermann [this message]
2016-09-15 15:55 ` Thiago Jung Bauermann
2016-09-15 0:54 ` [PATCH v5 2/5] kexec_file: Add buffer hand-over support for the next kernel Thiago Jung Bauermann
2016-09-15 0:54 ` [PATCH v5 3/5] powerpc: " Thiago Jung Bauermann
2016-09-15 0:54 ` [PATCH v5 4/5] kexec_file: Add mechanism to update kexec segments Thiago Jung Bauermann
2016-09-15 0:54 ` [PATCH v5 5/5] IMA: Demonstration code for kexec buffer passing Thiago Jung Bauermann
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