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2019-01-28multiboot-x86: pass framebuffer information when requestedFriedemann Gerold
When the kernel requests video information, pass it the framebuffer information in the multiboot header from the linux framebuffer ioctl's. With the arch specific --reset-vga or --consolve-vga options, purgatory will reset the framebuffer so pass information for standard ega text mode. Signed-off-by: Friedemann Gerold <cinap_lenrek@felloff.net> Signed-off-by: Simon Horman <horms@verge.net.au>
2019-01-28multiboot-x86: pass ACPI reserved memory information in memory mapFriedemann Gerold
Use the appropriate types for ACPI reclaim and ACPI NVS ranges in the multiboot memory map. This allows the kernel to locate ACPI tables on UEFI systems without having a explicit pointer to the RSD. Signed-off-by: Friedemann Gerold <cinap_lenrek@felloff.net> Signed-off-by: Simon Horman <horms@verge.net.au>
2019-01-28multiboot-x86: support for non-elf kernelsFriedemann Gerold
Add support for non-elf multiboot kernels (such as Plan 9) by handling the MULTIBOOT_AOUT_KLUDGE bit. When the bit is clear then we are dealing with an ELF file and probe for ELF as before with elf_x86_probe(). When the bit is set then load_addr, load_end_addr, header_addr and entry_addr from the multiboot header are used load the memory image. Signed-off-by: Friedemann Gerold <cinap_lenrek@felloff.net> Signed-off-by: Simon Horman <horms@verge.net.au>
2016-10-07multiboot: Use the "reserved" type for non-ram zonesSylvain Munaut
Seems that Xen actually checks for some zones to be 'reserved' and complains if they are not. This also matches what the bios uses at boot. Signed-off-by: Sylvain Munaut <s.munaut@whatever-company.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2016-10-07multiboot: Fix length computation for the memory zonesSylvain Munaut
Signed-off-by: Sylvain Munaut <s.munaut@whatever-company.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-02-12multiboot: fix crash on NULL kernel command lineAmeya Palande
If "--command-line" option is not specified, then kexec segfaults while dereferencing NULL command line string pointer. While we are at it, also fix indentation and use '{' and '}' consistently. Signed-off-by: Ameya Palande <2ameya@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2014-01-16Fix value of mbi->mem_lower for multiboot-x86Peter Chubb
In the multiboot header, there is a field, `mem_lower' that is meant to contain the size of memory starting at zero and ending below 640k. If your kernel is compiled with CONFIG_X86_RESERVE_LOW non zero (the usual case), then a hole is inserted into kernel's physical memory map at zero, so the test to find the size of this region in kexec/arch/i386/kexec-multiboot-x86.c never succeeds, so the value is always zero. On a PC99 architecture, there is always memory at physycal address zero; assume that a region that starts below 64k actually starts at zero, and use it for the mem_lower variable. Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-10-03kexec: Remove unused -? option handlingGeoff Levand
The main kexec option code handles the -? option. Remove all the duplicate -? handlers in the arch code which are never used. Signed-off-by: Geoff Levand <geoff@infradead.org> for Huawei, Linaro Signed-off-by: Simon Horman <horms@verge.net.au>
2013-03-27kexec: i386: multiboot: fix memory leak caused by get_command_lineZhang Yanfei
Since get_command_line returns dynamically allocated memory, it is easy for the caller to forget freeing the memory. Here fixes a memory leak caused by this function. Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-03-27kexec: i386: multiboot: fix possible memory leak in multiboot_x86_loadZhang Yanfei
In multiboot_x86_load, allocated memory may not be free'd if the code exits abnormally, by calling return. So the patch fixes the possible memory leak. Besides, remove some extra blank lines. Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-03-14kexec: i386: use _ALIGN* to make the logic clearZhang Yanfei
By replacing all the explicit align opertion with marco _ALIGN*, the code logic could be more clear. Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2013-01-30kexec,x86: remove duplicate get_memory_rangesZhang Yanfei
At first, we have already filled the kexec_info.memory_ranges by calling my_load() -> get_memory_ranges(). So if we want to get the memory information, we could just use the existing one instead of calling get_memory_ranges again. Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-05-19kexec-tools: Fix option/argument parsingMatt Evans
The argument parsing is currently a bit broken as main()'s getopt_long() knows nothing about either the architecture-specific options or, even more specifically, the architecture-and-loader-specific options. This patch introduces new #defines for all architectures, KEXEC_ALL_OPTIONS and KEXEC_ALL_OPT_STR. These contain all possible options for a given build, and the getopt_long() passes in main() and arch_process_options() will now recognise arch- and loader-specific options; these will not be re-ordered in argv[], there is no confusion over which argv[] entry is the kernel filename, and using '--opt=foo' and '--opt foo' both work. All architectures have command line options (and #define OPT_BLAHs) consolidated into their include/arch/option.h files. x86_64 builds parts of i386/ as well, so now both share a single option.h file (with a symlink). Signed-off-by: Matt Evans <matt@ozlabs.org> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-02-02Make purgatory a signed char bufferSimon Horman
The consumer of the purgatory buffer, elf_rel_build_load() expects a signed char buffer. Signed-off-by: Simon Horman <horms@verge.net.au>
2010-02-02Avoid possible overflows from signed/unsigned comparisonsSimon Horman
Signed-off-by: Simon Horman <horms@verge.net.au>
2010-02-02don't leak in concat_cmdlineSimon Horman
Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-02-02Fix --reuse-cmdline so it is usable.Eric W. Biederman
A colleague of mine implemented kdump and it used --reuse-cmdline with some rather interesting and unexpected results. Update the getopt specification so that --reuse-cmdline does not attempt to take an argument that it will not use. Update the processing of --append so that --reuse-cmdline followed by --append actually appends the parameters specified by --reuse-cmdline. Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
2008-05-21Add --reuse-cmdlineBernhard Walle
This patch adds an option "--reuse-cmdline" for people that are lazy in typing --append="$(cat /proc/cmdline)". The advantage of "--reuse-cmdline" is also that it strips off BOOT_IMAGE (since it may not be correct any more) from lilo and other boot loaders, and, more important, the crashkernel option in case a panic kernel is loaded. If you like the option I can also add it for really all architectures. Tested only with x86-bzImage both the kexec and kdump case. Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Simon Horman <horms@verge.net.au>
2008-04-24<sys/mman.h> is not needed by any kexec/ source, at least on i386.Jamey Sharp
Other architectures also include sys/mman.h and likely don't need to, but I can't easily test that. Signed-off-by: Jamey Sharp <jamey@thetovacompany.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2008-04-24Fix all gcc warnings for ARCH=i386 builds.Jamey Sharp
Signed-off-by: Jamey Sharp <jamey@thetovacompany.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2007-12-19Consolidate BOOTLOADER definesJeremy Kerr
The BOOTLOADER and BOOTLOADER_VERSION #defines are repeated in multiple files. This change removes the unnecessary definition of these, and keeps the kexec/kexec.h as the main source. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Simon Horman <horms@verge.net.au>
2007-02-27kexec-tools : fix compile time error on x86-64Sachin P. Sant
On x86_64 machines running kernels having relocatale kernel patches compilation of kexec tools fails with following error. kexec/arch/i386/kexec-multiboot-x86.c:347: warning: implicit declaration of function ‘_AC’ kexec/arch/i386/kexec-multiboot-x86.c:347: error: ‘UL’ undeclared (first use in this function) kexec/arch/i386/kexec-multiboot-x86.c:347: error: (Each undeclared identifier is reported only once kexec/arch/i386/kexec-multiboot-x86.c:347: error: for each function it appears in.) The error is bacause of the use of PAGE_SIZE macro in the above file. On x86_64 arch PAGE_SIZE is defined as #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) and hence fails to find definitation for _AC(). The correct way to fix this is to use getpagesize() function instead of PAGE_SIZE macro. Signed-off-by : Sachin Sant <sachinp@in.ibm.com> Acked-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by : Simon Horman <horms@verge.net.au>
2006-10-06kexec-tools: i386 fix compilation issues due to new parameterVivek Goyal
o Fix i386 compilation issues. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2006-07-27crashdump backup region handlingVivek Goyal
o This patch adds support for reserving space for backup region. Also adds code in purgatory to copy the first 640K to backup region. o Moved kexec_flags inside kexec_info structure. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
2006-07-27kexec-tools-1.101Eric W. Biederman
- Initial import into git - initial nbi image formage support - ppc32 initial register setting fixes. - gzipped multiboot file support
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