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Javier Santos Romo Ingeniero de Telecomunicaciones / Telecommunications Engineer / GMV Juan de Herrera nº17 Boecillo E-47151 Valladolid Tel. +34 983 54 65 54 Fax +34 983 54 65 53 www.gmv.com <http://www.gmv.com/> [cid:image002.png@01D39927.A0D208D0]<http://www.facebook.com/infoGMV> [cid:image003.png@01D39927.A0D208D0]<http://www.twitter.com/infoGMV_es> [cid:image004.png@01D39927.A0D208D0]<https://plus.google.com/+Gmvcompany> [cid:image005.png@01D39927.A0D208D0]<http://www.youtube.com/infoGMV> [cid:image006.png@01D39927.A0D208D0]<https://www.linkedin.com/company/gmv> [cid:image007.png@01D39927.A0D208D0]<http://www.gmv.com/en/RSS> [cid:image008.png@01D39927.A0D208D0]<http://www.gmv.com/blog_gmv/language/en/> De: Juan Alfonso Reyes Ajenjo Enviado el: lunes, 29 de enero de 2018 16:18 Para: u-boot@lists.denx.de CC: Javier Santos Romo <jsan...@gmv.com> Asunto: Uboot as x86_64 EFI payload Hi, I am Juan Alfonso Reyes, a firmware engineer in GMV. Currently we are developing new boards based in Apollo Lake CPU. We are trying to load uboot from UEFI. Using the default qemu-x86_efi_payload64_defconfig we are getting "U-Boot EFI Payload 2002 No memory map" error code. As I can see in the code 2002 means (efi_stub.c): ret = boot->get_memory_map(&size, NULL, &key, &desc_size, &version); if (ret != EFI_BUFFER_TOO_SMALL) { printhex2(BITS_PER_LONG); printhex2(ret); puts(" No memory map\n"); while(1); return ret; } 0x20 -> BITS_PER_LONG 32bits 0x02 -> EFI_INVALID_PARAMETER 32bits sounds weird for me, so I changed config to use CONFIG_X86_RUN_64BIT instead of CONFIG_X86_RUN_32BIT. I have changed it and I got a compilation error: In file included from include/common.h:53:0, from cmd/efi.c:8: cmd/efi.c: In function 'do_efi_mem': ./arch/x86/include/asm/global_data.h:117:12: error: 'global_data_ptr' undeclared (first use in this function) #define gd global_data_ptr I have surfed in the code and I have found this in ./arch/x86/include/asm/global_data.h # if defined(CONFIG_EFI_APP) || CONFIG_IS_ENABLED(X86_64) /* TODO(s...@chromium.org<mailto:s...@chromium.org>): Consider using a fixed register for gd on x86_64 */ #define gd global_data_ptr What do you mean with "Consider using a fixed register for gd" ?Can you help us to make this work? Are we in the correct direction? Thank you very much, Best regards, ________________________________ [cid:image001.gif@01D39927.A0D208D0] Juan Alfonso Reyes Ajenjo Ingeniero en Informatica / Computer Systems Engineer Ingeniero en Automática y Electrónica Industrial / Automation and Industrial Electronics Engineer GMV Juan de Herrera nº17 Boecillo E-47151 Valladolid Tel. +34 983 54 65 54 Fax +34 983 54 65 53 www.gmv.com <http://www.gmv.com/> [cid:image002.png@01D39927.A0D208D0]<http://www.facebook.com/infoGMV> [cid:image003.png@01D39927.A0D208D0]<http://www.twitter.com/infoGMV_es> [cid:image004.png@01D39927.A0D208D0]<https://plus.google.com/+Gmvcompany> [cid:image005.png@01D39927.A0D208D0]<http://www.youtube.com/infoGMV> [cid:image006.png@01D39927.A0D208D0]<https://www.linkedin.com/company/gmv> [cid:image007.png@01D39927.A0D208D0]<http://www.gmv.com/en/RSS> [cid:image008.png@01D39927.A0D208D0]<http://www.gmv.com/blog_gmv/language/en/> P Please consider the environment before printing this e-mail. P Please consider the environment before printing this e-mail. ______________________ This message including any attachments may contain confidential information, according to our Information Security Management System, and intended solely for a specific individual to whom they are addressed. Any unauthorised copy, disclosure or distribution of this message is strictly forbidden. If you have received this transmission in error, please notify the sender immediately and delete it. ______________________ Este mensaje, y en su caso, cualquier fichero anexo al mismo, puede contener informacion clasificada por su emisor como confidencial en el marco de su Sistema de Gestion de Seguridad de la Informacion siendo para uso exclusivo del destinatario, quedando prohibida su divulgacion copia o distribucion a terceros sin la autorizacion expresa del remitente. Si Vd. ha recibido este mensaje erroneamente, se ruega lo notifique al remitente y proceda a su borrado. Gracias por su colaboracion. ______________________
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