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* bootconfig: Reject subkey and value on same parent keyMasami Hiramatsu2020-02-202-0/+6
| | | | | | | | | | | | | | | | | | | Reject if a value node is mixed with subkey node on same parent key node. A value node can not co-exist with subkey node under some key node, e.g. key = value key.subkey = another-value This is not be allowed because bootconfig API is not designed to handle such case. Link: http://lkml.kernel.org/r/158220115232.26565.7792340045009731803.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* tools/bootconfig: Remove unneeded error message silencerMasami Hiramatsu2020-02-202-12/+1
| | | | | | | | | | | | | Remove error message silent knob, we don't need it anymore because we can check if there is a bootconfig by checking the magic word. If there is a magic word, but failed to load a bootconfig from initrd, there is a real problem. Link: http://lkml.kernel.org/r/158220113256.26565.14264598654427773104.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* bootconfig: Add bootconfig magic word for indicating bootconfig explicitlyMasami Hiramatsu2020-02-202-12/+33
| | | | | | | | | | | | | | | | | | | | Add bootconfig magic word to the end of bootconfig on initrd image for indicating explicitly the bootconfig is there. Also tools/bootconfig treats wrong size or wrong checksum or parse error as an error, because if there is a bootconfig magic word, there must be a bootconfig. The bootconfig magic word is "#BOOTCONFIG\n", 12 bytes word. Thus the block image of the initrd file with bootconfig is as follows. [Initrd][bootconfig][size][csum][#BOOTCONFIG\n] Link: http://lkml.kernel.org/r/158220112263.26565.3944814205960612841.stgit@devnote2 Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* tools/bootconfig: Suppress non-error messagesMasami Hiramatsu2020-02-102-14/+23
| | | | | | | | | | | | | | Suppress non-error messages when applying new bootconfig to initrd image. To enable it, replace printf for error message with pr_err() macro. This also adds a testcase for this fix. Link: http://lkml.kernel.org/r/158125351377.16911.13283712972275131160.stgit@devnote2 Reported-by: Michael Ellerman <mpe@ellerman.id.au> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* bootconfig: Allocate xbc_nodes array dynamicallyMasami Hiramatsu2020-02-101-0/+12
| | | | | | | | | | | | | | To reduce the large static array from kernel data, allocate xbc_nodes array dynamically only if the kernel loads a bootconfig. Note that this also add dummy memblock.h for user-spacae bootconfig tool. Link: http://lkml.kernel.org/r/158108569699.3187.6512834527603883707.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* tools/bootconfig: Fix wrong __VA_ARGS__ usageMasami Hiramatsu2020-02-101-1/+1
| | | | | | | | | | | | | | Since printk() wrapper macro uses __VA_ARGS__ without "##" prefix, it causes a build error if there is no variable arguments (e.g. only fmt is specified.) To fix this error, use ##__VA_ARGS__ instead of __VAR_ARGS__. Link: http://lkml.kernel.org/r/158108370130.2758.10893830923800978011.stgit@devnote2 Fixes: 950313ebf79c ("tools: bootconfig: Add bootconfig command") Reported-by: Michael Ellerman <mpe@ellerman.id.au> Tested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* tools/bootconfig: Show the number of bootconfig nodesMasami Hiramatsu2020-02-051-0/+1
| | | | | | | | | | | | | | Show the number of bootconfig nodes when applying new bootconfig to initrd. Since there are limitations of bootconfig not only in its filesize, but also the number of nodes, the number should be shown when applying so that user can get the feeling of scale of current bootconfig. Link: http://lkml.kernel.org/r/158091061337.27924.10886706631693823982.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* tools: bootconfig: Fix spelling mistake "faile" -> "failed"Colin Ian King2020-01-221-2/+2
| | | | | | | | | | There are two spelling mistakes in printf statements, fix these. Link: http://lkml.kernel.org/r/20200116092206.52192-1-colin.king@canonical.com Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* tools: bootconfig: Add bootconfig test scriptMasami Hiramatsu2020-01-1322-0/+176
| | | | | | | | | | Add a bootconfig test script to ensure the tool and boot config parser are working correctly. Link: http://lkml.kernel.org/r/157867224728.17873.18114241801246589416.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* tools: bootconfig: Add bootconfig commandMasami Hiramatsu2020-01-1310-0/+474
Add "bootconfig" command which operates the bootconfig config-data on initrd image. User can add/delete/verify the boot config on initrd image using this command. e.g. Add a boot config to initrd image # bootconfig -a myboot.conf /boot/initrd.img Remove it. # bootconfig -d /boot/initrd.img Or verify (and show) it. # bootconfig /boot/initrd.img Link: http://lkml.kernel.org/r/157867223582.17873.14342161849213219982.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> [ Removed extra blank line at end of bootconfig.c ] Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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