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kern/ieee1275/init/ppc64: Return allocated address using context

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Return the allocated address 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 need this but the converted
ieee1275 loader will make use of it.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pavithra Prakash <pavrampu@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Carolyn Scherrer <cpscherr@us.ibm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
This commit is contained in:
Stefan Berger 2023-11-30 09:17:17 -05:00 committed by Daniel Kiper
parent ea2c934849
commit fe5d5e8571
2 changed files with 3 additions and 0 deletions
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2
grub-core/kern/ieee1275/init.c
View File

@ -518,6 +518,8 @@ 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;
}
*(grub_uint32_t *) data = rcr->total;

1
include/grub/ieee1275/alloc.h
View File

@ -29,6 +29,7 @@ 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 */
};
#endif /* GRUB_IEEE1275_ALLOC_HEADER */