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[efi] Wrap any images loaded by our wrapped image

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Propagate our modified EFI system table to any images loaded by the
image that we wrap, thereby allowing us to observe boot services calls
made by all subsequent EFI images.

Also show details of intercepted ExitBootServices() calls.  When
wrapping is used, exiting boot services will almost certainly fail,
but this at least allows us to see when it happens.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2014-08-29 13:10:18 +01:00
parent 2cb95c9028
commit 0cc2f42f46
4 changed files with 70 additions and 24 deletions
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3
src/include/ipxe/efi/efi_wrap.h
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@@ -9,8 +9,7 @@
FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/efi/efi.h>
#include <ipxe/efi/Protocol/LoadedImage.h>
extern void efi_wrap ( EFI_HANDLE handle, EFI_LOADED_IMAGE_PROTOCOL *loaded );
extern void efi_wrap ( EFI_HANDLE handle );
#endif /* _IPXE_EFI_WRAP_H */

1
src/include/ipxe/errfile.h
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@@ -306,6 +306,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#define ERRFILE_xenbus ( ERRFILE_OTHER | 0x00430000 )
#define ERRFILE_xengrant ( ERRFILE_OTHER | 0x00440000 )
#define ERRFILE_efi_utils ( ERRFILE_OTHER | 0x00450000 )
#define ERRFILE_efi_wrap ( ERRFILE_OTHER | 0x00460000 )
/** @} */