Return the allocated address and the length of the memory block in the
request structure if a memory allocation was actually done. Leave the
address untouched otherwise. This enables a caller who wants to use the
allocated memory directly (rather than adding the memory to the heap) to
see where memory was allocated. None of the current callers needs this
but the converted ieee1275 loader will make use of it.
Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
Cc: Hari Bathini <hbath...@linux.ibm.com>
Cc: Pavithra Prakash <pavra...@in.ibm.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Carolyn Scherrer <cpsch...@us.ibm.com>
Cc: Mahesh Salgaonkar <mah...@linux.ibm.com>
Cc: Sourabh Jain <sourabhj...@linux.ibm.com>
---
grub-core/kern/ieee1275/init.c | 3 +++
include/grub/powerpc/ieee1275/alloc.h | 2 ++
2 files changed, 5 insertions(+)
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 217f25fae..e09db4192 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -518,6 +518,9 @@ regions_claim (grub_uint64_t addr, grub_uint64_t len,
grub_memory_type_t type,
if (rcr->init_region)
grub_mm_init_region ((void *) (grub_addr_t) addr, len);
rcr->total -= len;
+
+ rcr->addr = addr;
+ rcr->len = len;
}
*(grub_uint32_t *) data = rcr->total;
diff --git a/include/grub/powerpc/ieee1275/alloc.h
b/include/grub/powerpc/ieee1275/alloc.h
index 4bc362d36..ed0c76e2d 100644
--- a/include/grub/powerpc/ieee1275/alloc.h
+++ b/include/grub/powerpc/ieee1275/alloc.h
@@ -9,6 +9,8 @@ struct regions_claim_request {
unsigned int flags; /* GRUB_MM_ADD_REGION_(NONE|CONSECUTIVE) */
grub_uint32_t total; /* number of requested bytes */
bool init_region; /* whether to add memory to the heap using
grub_mm_init_region() */
+ grub_uint64_t addr; /* result address */
+ grub_uint64_t len; /* number of bytes allocated */
};
#endif /* GRUB_POWERPC_IEEE1275_ALLOC_HEADER */
--
2.25.1
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