From: linux@armlinux.org.uk (Russell King - ARM Linux) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 0/2] Simple fix to the ARM kexec tools implementation Date: Fri, 17 Jun 2016 20:44:05 +0100 [thread overview] Message-ID: <20160617194405.GN1041@n2100.armlinux.org.uk> (raw) This is the "simple" fix for the ARM kexec tools code, which makes the code actually do what the comments describe. There are two problems: 1. When placing the initrd, we do not take account of the 32k offset that is required for the kernel image. 2. The code claims to allow the zImage decompressor to expand by a factor of 4, but only allows space for a factor of 3, since the decompressor itself has to fit in this memory space as well. Changing the code to follow the comments allows Keystone II to kexec with DEBUG_RODATA enabled, at least with the kernel I've been testing with. This is a stop-gap solution until a better solution can be implemented. kexec/arch/arm/kexec-zImage-arm.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.
WARNING: multiple messages have this Message-ID (diff)
From: Russell King - ARM Linux <linux@armlinux.org.uk> To: Kees Cook <keescook@google.com>, Simon Horman <horms@verge.net.au>, Baoquan He <bhe@redhat.com>, Pratyush Anand <panand@redhat.com> Cc: kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 0/2] Simple fix to the ARM kexec tools implementation Date: Fri, 17 Jun 2016 20:44:05 +0100 [thread overview] Message-ID: <20160617194405.GN1041@n2100.armlinux.org.uk> (raw) This is the "simple" fix for the ARM kexec tools code, which makes the code actually do what the comments describe. There are two problems: 1. When placing the initrd, we do not take account of the 32k offset that is required for the kernel image. 2. The code claims to allow the zImage decompressor to expand by a factor of 4, but only allows space for a factor of 3, since the decompressor itself has to fit in this memory space as well. Changing the code to follow the comments allows Keystone II to kexec with DEBUG_RODATA enabled, at least with the kernel I've been testing with. This is a stop-gap solution until a better solution can be implemented. kexec/arch/arm/kexec-zImage-arm.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec
next reply other threads:[~2016-06-17 19:44 UTC|newest] Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-17 19:44 Russell King - ARM Linux [this message] 2016-06-17 19:44 ` [PATCH 0/2] Simple fix to the ARM kexec tools implementation Russell King - ARM Linux 2016-06-17 19:44 ` [PATCH 1/2] arm: take account of TEXT_OFFSET for subsequent images Russell King 2016-06-17 19:44 ` Russell King 2016-06-17 19:44 ` [PATCH 2/2] arm: fix kernel image size Russell King 2016-06-17 19:44 ` Russell King [not found] ` <E1bDzh4-0006a4-7p-yeZebKftTXNiEPTqdM/vLBqCBvEC6TWiNEsB0oqw8pBaa/9Udqfwiw@public.gmane.org> 2016-06-21 7:43 ` Tony Lindgren 2016-06-21 7:43 ` Tony Lindgren 2016-06-21 7:43 ` Tony Lindgren [not found] ` <20160621074319.GH22406-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> 2016-06-21 9:47 ` Russell King - ARM Linux 2016-06-21 9:47 ` Russell King - ARM Linux 2016-06-21 9:47 ` Russell King - ARM Linux [not found] ` <20160621094737.GA5783-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2016-06-21 10:38 ` Tony Lindgren 2016-06-21 10:38 ` Tony Lindgren 2016-06-21 10:38 ` Tony Lindgren [not found] ` <20160621103810.GI22406-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> 2016-06-21 10:57 ` Tony Lindgren 2016-06-21 10:57 ` Tony Lindgren 2016-06-21 10:57 ` Tony Lindgren [not found] ` <20160621105720.GK22406-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> 2016-06-21 15:44 ` Russell King - ARM Linux 2016-06-21 15:44 ` Russell King - ARM Linux 2016-06-21 15:44 ` Russell King - ARM Linux [not found] ` <20160621154407.GB5783-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2016-06-21 16:55 ` Tony Lindgren 2016-06-21 16:55 ` Tony Lindgren 2016-06-21 16:55 ` Tony Lindgren [not found] ` <20160621165523.GY22406-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> 2016-06-21 21:51 ` Russell King - ARM Linux 2016-06-21 21:51 ` Russell King - ARM Linux 2016-06-21 21:51 ` Russell King - ARM Linux [not found] ` <20160621215141.GC5783-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2016-06-22 7:36 ` Tony Lindgren 2016-06-22 7:36 ` Tony Lindgren 2016-06-22 7:36 ` Tony Lindgren [not found] ` <20160622073614.GZ22406-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> 2016-06-22 8:29 ` Russell King - ARM Linux 2016-06-22 8:29 ` Russell King - ARM Linux 2016-06-22 8:29 ` Russell King - ARM Linux [not found] ` <20160622082958.GD5783-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2016-06-22 8:51 ` Tony Lindgren 2016-06-22 8:51 ` Tony Lindgren 2016-06-22 8:51 ` Tony Lindgren 2016-06-21 11:02 ` Mason 2016-06-21 6:11 ` [PATCH 0/2] Simple fix to the ARM kexec tools implementation Pratyush Anand 2016-06-21 6:11 ` Pratyush Anand 2016-06-21 8:20 ` Russell King - ARM Linux 2016-06-21 8:20 ` Russell King - ARM Linux 2016-06-23 0:41 ` Simon Horman 2016-06-23 0:41 ` Simon Horman
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