[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 09/10] x86: check kexec relocation code fits in a page
On Mon, Jun 24, 2013 at 06:42:20PM +0100, David Vrabel wrote: > From: David Vrabel <david.vrabel@xxxxxxxxxx> > > The kexec relocation (control) code must fit in a single page so add a > link time check for this. > > Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx> > --- > xen/arch/x86/xen.lds.S | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/xen/arch/x86/xen.lds.S b/xen/arch/x86/xen.lds.S > index d959941..eebed01 100644 > --- a/xen/arch/x86/xen.lds.S > +++ b/xen/arch/x86/xen.lds.S > @@ -186,3 +186,7 @@ SECTIONS > .stab.indexstr 0 : { *(.stab.indexstr) } > .comment 0 : { *(.comment) } > } > + > +#ifdef CONFIG_KEXEC > +ASSERT(__kexec_reloc_size <= PAGE_SIZE, "kexec control code is too large") ASSERT(kexec_reloc_size <= KEXEC_CONTROL_PAGE_SIZE, "kexec control code is too large") Daniel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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