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Date: Wed, 14 Sep 2016 22:51:36 -0300 From: Thiago Jung Bauermann <bauerman@...ux.vnet.ibm.com> To: Stephen Rothwell <sfr@...b.auug.org.au> Cc: kexec@...ts.infradead.org, linux-ima-devel@...ts.sourceforge.net, linuxppc-dev@...ts.ozlabs.org, x86@...nel.org, linux-kernel@...r.kernel.org, Eric Biederman <ebiederm@...ssion.com>, Dave Young <dyoung@...hat.com>, Vivek Goyal <vgoyal@...hat.com>, Baoquan He <bhe@...hat.com>, Michael Ellerman <mpe@...erman.id.au>, Stewart Smith <stewart@...ux.vnet.ibm.com>, Mimi Zohar <zohar@...ux.vnet.ibm.com>, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com> Subject: Re: [PATCH v5 1/5] kexec_file: Include the purgatory segment in the kexec image checksum. 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
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