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Full Discussion: Running bin file from a module
Top Forums Programming Running bin file from a module Post 302505596 by fpmurphy on Thursday 17th of March 2011 11:14:33 AM
Old 03-17-2011
Quote:
In final version my driver would load UEFI driver from hardware's flash.
I am confused. UEFI drivers are intended to extend firmware, have no OS dependence and have nothing to do with an operating system kernel.

How do you expect the kernel to load and interface with a UEFI driver? UEFI drivers can be 32 bit, 64-bit and more commonly EBC (Efi Byte Code). Have you read the Driver Writers Guide for UEFI?

Are you aware, for example, that 64-bit UEFI uses the Microsoft X64 calling convention whereas Linux uses the AMD64 calling convention.
Code:
//
// Unix/Linux arg passing:  RCX, RDX,  R8,  R9
//                                     RSI, RDI scratch 
//   UEFI/EFI arg passing:  RDI, RSI, RDX, RCX, R8, R9
//                                     Callee allocates 32 bytes on stack to spill registers
//                                     RSI, RDI callee-save
//
//   Mapping between registers
//
//   arg1   arg2    arg3   arg4   arg5     arg6      arg7       arg8
//
//   gcc:  (AMD64 ABI)
//   %rdi,  %rsi,  %rdx,  %rcx,    %r8,     %r9,     8(%rsp), 16(%rsp),  ....
//
//   efi:  (Microsoft X64)
//   %rcx,  %rdx,   %r8,   %r9,  32(%rsp), 40(%rsp), 48(%rsp), 56(%rsp), ....
//

You also need a UEFI-aware operating system of which there are a limited number out there. Recent 64-bit versions of Fedora/Redhat/etc.

If you describe exactly what you are trying to achieve - the big picture and not the how to - we can probably help you.
 

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LEARN ABOUT CENTOS

pesign-client

PESIGN-CLIENT(1)					      General Commands Manual						  PESIGN-CLIENT(1)

NAME

       pesign-client - command line tool for signing UEFI applications

SYNOPSIS

       pesign [--in=infile | -i infile]
	      [--out=outfile | -o outfile]
	      [--export=exportfile | -e exportfile]
	      [--token=token | -t token]
	      [--certificate=nickname | -c nickname]
	      [--unlock | -u] [--kill | -k] [--sign | -s]
	      [--pinfd=pinfd | -f pinfd]
	      [--pinfile=pinfile | -F pinfile]

DESCRIPTION

       pesign is a command line tool for manipulating signatures and cryptographic digests of UEFI applications.

OPTIONS

       --unlock
	      Unlock  the  specified  token.   A PIN - specified by one of --pinfd, --pinfile, or the environmental variable PESIGN_TOKEN_PIN - is
	      required for this operation to succeed.  The PIN may be empty, if that is what is required for the token specified with --token.

       --pinfd=pinfd
	      When using --unlock, read the token's PIN from the open file descriptor pinfd.

       --pinfile=pinfile
	      When using --unlock, read the token's PIN from the file pinfile.

       --sign
	      Sign the binary specified by infile.

       --detached
	      When used with --sign, write the signature to outfile.

       --in=infile
	      When used with --sign, specify the input binary.

       --out=outfile
	      When used with --sign, specify output file.  If --detached is specified, this will be a  DER-formatted  signature.   Otherwise,  the
	      output will be the signed PE binary.

       --token=token
	      When used with --unlock or --sign, use the specified NSS token's certificate database.

       --certificate=nickname
	      When used with --sign, use the certificate database entry with the specified nickname for signing.

       --kill
	      Terminate the signing server.

SEE ALSO

       pesign(1)

AUTHORS

       Peter Jones

								  Mon Oct 15 2012						  PESIGN-CLIENT(1)
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