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[2603:6081:7b01:cbda:519a:4843:2801:9790]) by smtp.gmail.com with ESMTPSA id h12sm634284qth.1.2021.08.25.14.58.30 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 25 Aug 2021 14:58:31 -0700 (PDT) Date: Wed, 25 Aug 2021 17:58:28 -0400 From: Tom Rini To: Mark Kettenis Cc: Peter Robinson , sjg@chromium.org, ilias.apalodimas@linaro.org, u-boot@lists.denx.de, jaeckel-floss@eyet-services.de, michal.simek@xilinx.com, dennis@ausil.us, daniel.schwierzeck@gmail.com, lukas.auer@aisec.fraunhofer.de, jh80.chung@samsung.com, mbrugger@suse.com, peng.fan@nxp.com, swarren@nvidia.com, swarren@wwwdotorg.org Subject: Re: [PATCH 00/28] Initial implementation of bootmethod/bootflow Message-ID: <20210825215828.GA858@bill-the-cat> References: <20210819135944.GX858@bill-the-cat> <20210819172750.GB858@bill-the-cat> <20210823200854.GH858@bill-the-cat> <561419e9d8b31466@bloch.sibelius.xs4all.nl> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="Vf6WpIeG1b5WYkEO" Content-Disposition: inline In-Reply-To: <561419e9d8b31466@bloch.sibelius.xs4all.nl> X-Clacks-Overhead: GNU Terry Pratchett User-Agent: Mutt/1.9.4 (2018-02-28) X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean --Vf6WpIeG1b5WYkEO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Aug 25, 2021 at 11:34:45PM +0200, Mark Kettenis wrote: > > From: Peter Robinson > > Date: Wed, 25 Aug 2021 14:29:45 +0100 > >=20 > > > > Exactly. Keep in mind that RISC-V is looking into EBBR as well, > > > > so this is far from an 'Arm thing'. Moreover, the efi stub side > > > > of the kernel for risc-v, will only load an initrd using the > > > > EFI_LOAD_FILE2 protocol we added support for. So right now the > > > > only way to properly boot a RISC-V with EFI is through the > > > > manager. > > > > > > I had heard that RISC-V was just going to use UEFI (and not U-Boot), > > > but perhaps that is not correct. So far I have not really done > > > anything with RISC-V so am not familiar with it. > >=20 > > My understanding is the intention is to just use UEFI of which U-Boot > > has a UEFI implementation. >=20 > The HiFive Unmatched ships with U-Boot. I'm booting OpenBSD via UEFI > on that board by using the uSD card that came with the board. >=20 > The folks pushing the spec for RISC-V server hardware are probably > considering a more traditional UEFI implementation for those systems > since they also seem to be pushing for ACPI. But they explicitly > mention EBBR for "embedded" systems, and EBBR was deliberately > designed to allow the implementation of compliant systems using > U-Boot's UEFI implementation. I don't know if any of the "right" people are listening here, but, I don't see why ACPI precludes U-Boot. We ship ACPI tables for x86 already... --=20 Tom --Vf6WpIeG1b5WYkEO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmEmvQEACgkQFHw5/5Y0 tywTrgwAhJ7zAqiwX+qGUu5W/xcPIrMqjE5dCs/UEV1gWhYGyNlLO02WPDjj3hpT H7Vpbz7rmW4IzGLpbrF2ql+u1DEPEH2yEpJ5AfOfoeeJmIx68zwkCKTLjhlRMr5a ubUFvXPx9a0WYQPlOLTZpui5qQPqoZVFfC1BTPawFTUbPcdvfoySESEJBLQP1hxK vNsddg/+u0ntYPv7Rvi2VHq6wOs3dcl59zEQqQPHGlWSxQZ3apL9sM6LzYoT6EX6 isTMk994DuxkImYOcx/Iv/MWi19BwwMIEVUhuZOGOl8AX1hv1HJO2iI5Lb4T/yth qUfBzAJU7568KmRyxGhM6Smc+d+UCOlXrRu09NmLO6a5nDtcOv5gfGs7sTZ57Jp5 4mGWJKXqxGAE61XVG8k56uBkaC2Ynv2sN2cQWuAlMxGGHUr8wyqURkmhtbbJWEFI ckTmzBA+VBEGTK/QtImBo16m+Kyo6SOeRZKf9eOhJrSXYpsUKumv/mGjsmgctVmx ovppNLW+ =k4Wd -----END PGP SIGNATURE----- --Vf6WpIeG1b5WYkEO--