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author | Alexander Graf <agraf@suse.de> | 2013-01-17 11:19:28 +0100 |
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committer | Alexander Graf <agraf@suse.de> | 2013-01-18 19:06:57 +0100 |
commit | b8dec1443ef6c52e72594c5a861a5d2fd7f05d80 (patch) | |
tree | 37fb47dec91807b5f2e748bb648994e768e66221 /hw/ppc/e500.c | |
parent | 746a870b3c44a6c5734691fec013c78520d55f15 (diff) | |
download | hqemu-b8dec1443ef6c52e72594c5a861a5d2fd7f05d80.zip hqemu-b8dec1443ef6c52e72594c5a861a5d2fd7f05d80.tar.gz |
PPC: e500: Change in-memory order of load blobs
Today, we load
<kernel> <initrd> <dtb>
into memory in that order. However, Linux has a bug where it can only
handle the dtb if it's within the first 64MB of where <kernel> starts.
So instead, let's change the order to
<kernel> <dtb> <initrd>
making Linux happy.
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'hw/ppc/e500.c')
-rw-r--r-- | hw/ppc/e500.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c index e5564ce..c36821a 100644 --- a/hw/ppc/e500.c +++ b/hw/ppc/e500.c @@ -41,6 +41,7 @@ #define UIMAGE_LOAD_BASE 0 #define DTC_LOAD_PAD 0x1800000 #define DTC_PAD_MASK 0xFFFFF +#define DTB_MAX_SIZE (8 * 1024 * 1024) #define INITRD_LOAD_PAD 0x2000000 #define INITRD_PAD_MASK 0xFFFFFF @@ -629,6 +630,10 @@ void ppce500_init(PPCE500Params *params) } cur_base = loadaddr + kernel_size; + + /* Reserve space for dtb */ + dt_base = (cur_base + DTC_LOAD_PAD) & ~DTC_PAD_MASK; + cur_base += DTB_MAX_SIZE; } /* Load initrd. */ @@ -651,13 +656,13 @@ void ppce500_init(PPCE500Params *params) struct boot_info *boot_info; int dt_size; - dt_base = (cur_base + DTC_LOAD_PAD) & ~DTC_PAD_MASK; dt_size = ppce500_load_device_tree(env, params, dt_base, initrd_base, initrd_size); if (dt_size < 0) { fprintf(stderr, "couldn't load device tree\n"); exit(1); } + assert(dt_size < DTB_MAX_SIZE); boot_info = env->load_info; boot_info->entry = entry; |