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| author | xypron.glpk@gmx.de <xypron.glpk@gmx.de> | 2017-07-11 22:06:22 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2017-07-19 14:14:39 +0200 |
| commit | c2e703f903924065ab099385cd2416032526c50a (patch) | |
| tree | 790979976f1897482b7dcbb0fed2be745c9bb79a /lib | |
| parent | 26329584f350d2bd2a4125a645a6f5821019808b (diff) | |
| download | u-boot-c2e703f903924065ab099385cd2416032526c50a.tar.gz | |
efi_loader: implement LocateHandleBuffer
UEFI boot service LocateHandleBuffer is implemented by calling
efi_allocate_handle and efi_locate_handle.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_boottime.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 1f72efe7c3..6f093290eb 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -758,9 +758,32 @@ 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[] = { |