From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: [PATCH 09/10] x86: check kexec relocation code fits in a page Date: Mon, 24 Jun 2013 18:42:20 +0100 Message-ID: <1372095741-27012-10-git-send-email-david.vrabel@citrix.com> References: <1372095741-27012-1-git-send-email-david.vrabel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1372095741-27012-1-git-send-email-david.vrabel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org Cc: Daniel Kiper , Keir Fraser , David Vrabel List-Id: xen-devel@lists.xenproject.org From: David Vrabel The kexec relocation (control) code must fit in a single page so add a link time check for this. Signed-off-by: David Vrabel --- 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") +#endif -- 1.7.2.5