UEFI boot service LocateHandleBuffer is implemented by calling
efi_allocate_handle and efi_locate_handle.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
v2
no change
---
lib/efi_loader/efi_boottime.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 888207681c..3060c25a2a 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -753,9 +753,32 @@ static efi_status_t EFIAPI efi_locate_handle_buffer(
efi_guid_t *protocol, void *search_key,
unsigned long *no_handles, efi_handle_t **buffer)
{
+ efi_status_t r;
+ unsigned long buffer_size = 0;
+
EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key,
no_handles, buffer);
- return EFI_EXIT(EFI_NOT_FOUND);
+
+ if (!no_handles || !buffer) {
+ r = EFI_INVALID_PARAMETER;
+ goto out;
+ }
+ *no_handles = 0;
+ *buffer = NULL;
+ r = efi_locate_handle(search_type, protocol, search_key, &buffer_size,
+ *buffer);
+ if (r != EFI_BUFFER_TOO_SMALL)
+ goto out;
+ r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, buffer_size,
+ (void **)buffer);
+ if (r != EFI_SUCCESS)
+ goto out;
+ r = efi_locate_handle(search_type, protocol, search_key, &buffer_size,
+ *buffer);
+ if (r == EFI_SUCCESS)
+ *no_handles = buffer_size / sizeof(void *);
+out:
+ return EFI_EXIT(r);
}
static struct efi_class_map efi_class_maps[] = {
--
2.11.0
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