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| author | Geoff Lywood | 2010-05-28 05:08:28 +0200 |
|---|---|---|
| committer | Michael Brown | 2010-06-02 16:15:29 +0200 |
| commit | 62149deb116516bb0d70b756bfc4f5b4669034da (patch) | |
| tree | b8adc9a047202f1cebc15f244da2c36d75a05ba0 /src/interface/efi/efi_init.c | |
| parent | [qib7322] Fix whitespace errors (diff) | |
| download | ipxe-62149deb116516bb0d70b756bfc4f5b4669034da.tar.gz ipxe-62149deb116516bb0d70b756bfc4f5b4669034da.tar.xz ipxe-62149deb116516bb0d70b756bfc4f5b4669034da.zip | |
[efi] Add the "snpnet" driver
Add a new network driver that consumes the EFI Simple Network
Protocol. Also add a bus driver that can find the Simple Network
Protocol that iPXE was loaded from; the resulting behavior is similar
to the "undionly" driver for BIOS systems.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/interface/efi/efi_init.c')
| -rw-r--r-- | src/interface/efi/efi_init.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/interface/efi/efi_init.c b/src/interface/efi/efi_init.c index ed659932..029bc06f 100644 --- a/src/interface/efi/efi_init.c +++ b/src/interface/efi/efi_init.c @@ -20,14 +20,22 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include <string.h> #include <ipxe/efi/efi.h> +#include <ipxe/efi/Protocol/LoadedImage.h> #include <ipxe/uuid.h> /** Image handle passed to entry point */ EFI_HANDLE efi_image_handle; +/** Loaded image protocol for this image */ +EFI_LOADED_IMAGE_PROTOCOL *efi_loaded_image; + /** System table passed to entry point */ EFI_SYSTEM_TABLE *efi_systab; +/** EFI loaded image protocol GUID */ +static EFI_GUID efi_loaded_image_protocol_guid + = EFI_LOADED_IMAGE_PROTOCOL_GUID; + /** * Look up EFI configuration table * @@ -59,6 +67,7 @@ EFI_STATUS efi_init ( EFI_HANDLE image_handle, struct efi_protocol *prot; struct efi_config_table *tab; EFI_STATUS efirc; + void *loaded_image; /* Store image handle and system table pointer for future use */ efi_image_handle = image_handle; @@ -80,8 +89,20 @@ EFI_STATUS efi_init ( EFI_HANDLE image_handle, } DBGC ( systab, "EFI handle %p systab %p\n", image_handle, systab ); - /* Look up used protocols */ bs = systab->BootServices; + efirc = bs->OpenProtocol ( image_handle, + &efi_loaded_image_protocol_guid, + &loaded_image, image_handle, NULL, + EFI_OPEN_PROTOCOL_GET_PROTOCOL ); + if ( efirc ) { + DBGC ( systab, "Could not get loaded image protocol" ); + return efirc; + } + + efi_loaded_image = loaded_image; + DBG ( "Image base address = %p\n", efi_loaded_image->ImageBase ); + + /* Look up used protocols */ for_each_table_entry ( prot, EFI_PROTOCOLS ) { if ( ( efirc = bs->LocateProtocol ( &prot->u.guid, NULL, prot->protocol ) ) == 0 ) { |