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author | Stefan Brüns <stefan.bruens@rwth-aachen.de> | 2016-10-09 22:17:18 +0200 |
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committer | Alexander Graf <agraf@suse.de> | 2016-10-18 09:08:07 +0200 |
commit | ead1274b7f9578e346b3cdcb3d9e2002ef8f0e75 (patch) | |
tree | 2bd5c709a3dbbac929d8b056ddfa4141b404a04c /lib/efi_loader/efi_memory.c | |
parent | 991d62fa73a35598a8939a83dd84369168220d35 (diff) |
efi_loader: Move efi_allocate_pool implementation to efi_memory.c
We currently handle efi_allocate_pool() in our boot time service
file. In the following patch, pool allocation will receive additional
internal semantics that we should preserve inside efi_memory.c instead.
As foundation for those changes, split the function into an externally
facing efi_allocate_pool_ext() for use by payloads and an internal helper
efi_allocate_pool() in efi_memory.c that handles the actual allocation.
While at it, change the magic 0xfff / 12 constants to the more obvious
EFI_PAGE_MASK/SHIFT defines.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'lib/efi_loader/efi_memory.c')
-rw-r--r-- | lib/efi_loader/efi_memory.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 1d23783020..be642f12a9 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -327,6 +327,20 @@ efi_status_t efi_free_pages(uint64_t memory, unsigned long pages) return EFI_SUCCESS; } +efi_status_t efi_allocate_pool(int pool_type, unsigned long size, + void **buffer) +{ + efi_status_t r; + efi_physical_addr_t t; + u64 num_pages = (size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT; + + r = efi_allocate_pages(0, pool_type, num_pages, &t); + if (r == EFI_SUCCESS) + *buffer = (void *)(uintptr_t)t; + + return r; +} + efi_status_t efi_get_memory_map(unsigned long *memory_map_size, struct efi_mem_desc *memory_map, unsigned long *map_key, |