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efi_loader: Change return type of efi_add_memory_map()

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We currently have some inconsistent use of efi_add_memory_map()
throughout the code. In particular the return value of efi_add_memory_map()
is not interpreted the same way by various users in the codebase.

This patch does the following:

- Changes efi_add_memory_map() to return efi_status_t.
- Adds a method description to efi_add_memory_map().
- Changes efi_add_memory_map() to return EFI_SUCCESS
- Returns non-zero for error in efi_add_memory_map()
- Updates efi_allocate_pages() to new efi_add_memory_map()
- Updates efi_free_pages() to new efi_add_memory_map()
- Updates efi_carve_out_dt_rsv() to new efi_add_memory_map()
- Updates efi_add_runtime_mmio()  to new efi_add_memory_map()

Fixes: 5d00995c36 ("efi_loader: Implement memory allocation and map")
Fixes: 74c16acce3 ("efi_loader: Don't allocate from memory holes")
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Alexander Graf <agraf@csgraf.de>
Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Bryan O'Donoghue
2019-07-15 12:00:39 +01:00
committed by Heinrich Schuchardt
parent 112464f325
commit b225c92fd0
4 changed files with 27 additions and 19 deletions
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4
cmd/bootefi.c
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@@ -169,8 +169,8 @@ static void efi_carve_out_dt_rsv(void *fdt)
pages = efi_size_in_pages(size + (addr & EFI_PAGE_MASK));
addr &= ~EFI_PAGE_MASK;
if (!efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE,
false))
if (efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE,
false) != EFI_SUCCESS)
printf("FDT memrsv map %d: Failed to add to map\n", i);
}
}