diff options
| author | Matthias Brugger <mbrugger@suse.com> | 2016-12-07 17:26:15 +0100 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2016-12-09 08:58:26 +0100 |
| commit | a2451670230c5687ae6a6af0685f22c1659fb94a (patch) | |
| tree | ccbfa13f16bff10387996136ec2ab3480d10ed80 | |
| parent | 6d972b95c6d9d980d53bbe4e85d471ccae72140e (diff) | |
arm64: Fix initrd requierements
The initrd doesn't need to be aligend to 1 GB, which breaks kexec for system with
RAM <= 1 GB. Instead the memory size between the kernel start rounded down to 1 GB
and the end of the initrd rounded up to 1 GB can't be bigger then 32 GB.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
| -rw-r--r-- | kexec/arch/arm64/kexec-arm64.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/kexec/arch/arm64/kexec-arm64.c b/kexec/arch/arm64/kexec-arm64.c index 288548f..04fd396 100644 --- a/kexec/arch/arm64/kexec-arm64.c +++ b/kexec/arch/arm64/kexec-arm64.c @@ -327,6 +327,7 @@ int arm64_load_other_segments(struct kexec_info *info, unsigned long dtb_base; unsigned long hole_min; unsigned long hole_max; + unsigned long initrd_end; char *initrd_buf = NULL; struct dtb dtb; char command_line[COMMAND_LINE_SIZE] = ""; @@ -366,27 +367,27 @@ int arm64_load_other_segments(struct kexec_info *info, if (!initrd_buf) fprintf(stderr, "kexec: Empty ramdisk file.\n"); else { - /* - * Put the initrd after the kernel. As specified in - * booting.txt, align to 1 GiB. - */ + /* Put the initrd after the kernel. */ initrd_base = add_buffer_phys_virt(info, initrd_buf, - initrd_size, initrd_size, GiB(1), + initrd_size, initrd_size, 0, hole_min, hole_max, 1, 0); - /* initrd_base is valid if we got here. */ - - dbgprintf("initrd: base %lx, size %lxh (%ld)\n", - initrd_base, initrd_size, initrd_size); + initrd_end = initrd_base + initrd_size; - /* Check size limit as specified in booting.txt. */ + /* Check limits as specified in booting.txt. + * The kernel may have as little as 32 GB of address space to map + * system memory and both kernel and initrd must be 1GB aligend. + */ - if (initrd_base - image_base + initrd_size > GiB(32)) { + if (_ALIGN_UP(initrd_end, GiB(1)) - _ALIGN_DOWN(image_base, GiB(1)) > GiB(32)) { fprintf(stderr, "kexec: Error: image + initrd too big.\n"); return -EFAILED; } + dbgprintf("initrd: base %lx, size %lxh (%ld)\n", + initrd_base, initrd_size, initrd_size); + result = dtb_set_initrd((char **)&dtb.buf, &dtb.size, initrd_base, initrd_base + initrd_size); |