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| author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
|---|---|---|
| committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
| commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
| tree | 65ca85f13617aee1dce474596800950f266a456c /roms/ipxe/src/arch/i386/include/initrd.h | |
| download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip | |
Diffstat (limited to 'roms/ipxe/src/arch/i386/include/initrd.h')
| -rw-r--r-- | roms/ipxe/src/arch/i386/include/initrd.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/roms/ipxe/src/arch/i386/include/initrd.h b/roms/ipxe/src/arch/i386/include/initrd.h new file mode 100644 index 00000000..a5659f43 --- /dev/null +++ b/roms/ipxe/src/arch/i386/include/initrd.h @@ -0,0 +1,30 @@ +#ifndef _INITRD_H +#define _INITRD_H + +/** @file + * + * Initial ramdisk (initrd) reshuffling + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <ipxe/uaccess.h> + +/** Minimum alignment for initrds + * + * Some versions of Linux complain about initrds that are not + * page-aligned. + */ +#define INITRD_ALIGN 4096 + +/** Minimum free space required to reshuffle initrds + * + * Chosen to avoid absurdly long reshuffling times + */ +#define INITRD_MIN_FREE_LEN ( 512 * 1024 ) + +extern void initrd_reshuffle ( userptr_t bottom ); +extern int initrd_reshuffle_check ( size_t len, userptr_t bottom ); + +#endif /* _INITRD_H */ |