From: Simon Glass <sjg@chromium.org>
To: U-Boot Mailing List <u-boot@lists.denx.de>
Cc: Tom Rini <trini@konsulko.com>, Simon Glass <sjg@chromium.org>
Subject: [PATCH 33/45] vbe: Support selecting operations by SPL phase
Date: Sun, 25 Sep 2022 09:02:36 -0600 [thread overview]
Message-ID: <20220925150248.2524421-34-sjg@chromium.org> (raw)
In-Reply-To: <20220925150248.2524421-1-sjg@chromium.org>
VBE supports booting firmware during the SPL phases, i.e. so that VPL can
start SPL, then SPL can start U-Boot.
It also supports booting an OS, when in U-Boot.
As a first step towards these features, add functions to indicate the
current VBE phase. The firmware selection is done in VPL and the OS
selection is done in U-Boot proper.
Signed-off-by: Simon Glass <sjg@chromium.org>
---
include/vbe.h | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/include/vbe.h b/include/vbe.h
index b83f6f0c519..ece2697b5dc 100644
--- a/include/vbe.h
+++ b/include/vbe.h
@@ -10,6 +10,34 @@
#ifndef __VBE_H
#define __VBE_H
+/**
+ * enum vbe_phase_t - current phase of VBE
+ *
+ * VBE operates in two distinct phases. In VPL it has to choose which firmware
+ * to run (SPL, U-Boot, OP-TEE, etc.). It then carries on running until it gets
+ * to U-Boot, where it decides which OS to run
+ *
+ * @VBE_PHASE_FIRMWARE: Selecting the firmware to run
+ * @VBE_PHASE_OS: Selecting the Operating System to run
+ */
+enum vbe_phase_t {
+ VBE_PHASE_FIRMWARE,
+ VBE_PHASE_OS,
+};
+
+/**
+ * vbe_phase() - get current VBE phase
+ *
+ * Returns: Current VBE phase
+ */
+static inline enum vbe_phase_t vbe_phase(void)
+{
+ if (IS_ENABLED(CONFIG_SPL_BUILD))
+ return VBE_PHASE_FIRMWARE;
+
+ return VBE_PHASE_OS;
+}
+
/**
* vbe_list() - List the VBE bootmeths
*
--
2.37.3.998.g577e59143f-goog
next prev parent reply other threads:[~2022-09-25 15:10 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-25 15:02 [PATCH 00/45] vbe: Implement the full firmware flow Simon Glass
2022-09-25 15:02 ` [PATCH 01/45] Rename CONFIG_SYS_TEXT_BASE to CONFIG_TEXT_BASE Simon Glass
2022-09-25 15:02 ` [PATCH 02/45] disk: Drop debug messages in part_efi Simon Glass
2022-09-26 6:11 ` Heinrich Schuchardt
2022-09-25 15:02 ` [PATCH 03/45] bloblist: Drop debugging Simon Glass
2022-09-25 15:02 ` [PATCH 04/45] rsa: Avoid warning in padding_pss_verify() Simon Glass
2022-09-26 6:23 ` Heinrich Schuchardt
2022-09-25 15:02 ` [PATCH 05/45] spl: Use binman suffix allow symbols of any SPL etype Simon Glass
2022-09-25 15:02 ` [PATCH 06/45] spl: Split up the board_init_r() function Simon Glass
2022-09-25 15:02 ` [PATCH 07/45] spl: Refactor controls for console output Simon Glass
2022-09-29 15:16 ` Tom Rini
2022-09-25 15:02 ` [PATCH 08/45] spl: Add a separate silence option for SPL Simon Glass
2022-09-25 15:02 ` [PATCH 09/45] CI: Install pyelftools for builds Simon Glass
2022-09-26 6:29 ` Heinrich Schuchardt
2022-09-28 10:20 ` Simon Glass
2022-09-29 15:05 ` Tom Rini
2022-09-29 23:55 ` Simon Glass
2022-09-30 12:56 ` Tom Rini
2022-09-30 13:28 ` Simon Glass
2022-09-25 15:02 ` [PATCH 10/45] binman: Allow obtaining a symbol value Simon Glass
2022-09-25 15:02 ` [PATCH 11/45] binman: Split out looking up a symbol into a function Simon Glass
2022-09-25 15:02 ` [PATCH 12/45] binman: Handle writing ELF symbols in the Entry class Simon Glass
2022-09-25 15:02 ` [PATCH 13/45] binman: Support writing symbols into ELF files Simon Glass
2022-09-25 15:02 ` [PATCH 14/45] dm: blk: Add udevice functions Simon Glass
2022-09-26 0:17 ` AKASHI Takahiro
2022-09-28 10:20 ` Simon Glass
2022-09-29 0:51 ` AKASHI Takahiro
2022-09-29 2:35 ` Simon Glass
2022-09-30 1:54 ` AKASHI Takahiro
2022-09-25 15:02 ` [PATCH 15/45] dm: usb: Update the test to cover reading and writing Simon Glass
2022-09-25 15:02 ` [PATCH 16/45] dm: blk: mmc: Tidy up some Makefile rules for SPL Simon Glass
2022-09-25 15:02 ` [PATCH 17/45] dm: mmc: Allow sandbox emulator to build without writes Simon Glass
2022-09-25 15:02 ` [PATCH 18/45] sandbox: Drop message about writing sandbox state Simon Glass
2022-09-26 6:31 ` Heinrich Schuchardt
2022-09-25 15:02 ` [PATCH 19/45] sandbox: Generalise SPL booting Simon Glass
2022-09-25 15:02 ` [PATCH 20/45] sandbox: Add a way to specify the sandbox executable Simon Glass
2022-09-26 6:49 ` Heinrich Schuchardt
2022-11-07 23:35 ` Simon Glass
2022-09-25 15:02 ` [PATCH 21/45] bootstd: Add a way to set up a bootflow Simon Glass
2022-09-25 15:02 ` [PATCH 22/45] image: Move comment for fit_conf_find_compat() Simon Glass
2022-09-26 6:54 ` Heinrich Schuchardt
2022-09-25 15:02 ` [PATCH 23/45] test: Report skippped tests Simon Glass
2022-09-25 15:02 ` [PATCH 24/45] test: Update tests to use the skip feature Simon Glass
2022-09-25 15:02 ` [PATCH 25/45] test: Support tests which can only be run manually Simon Glass
2022-09-26 6:56 ` Heinrich Schuchardt
2022-09-28 10:20 ` Simon Glass
2022-09-25 15:02 ` [PATCH 26/45] image: Add the concept of a phase to FIT Simon Glass
2022-09-25 15:02 ` [PATCH 27/45] image: Allow loading a FIT config for a particular phase Simon Glass
2022-09-25 15:02 ` [PATCH 28/45] image: Correct strncpy() warning with image_set_name() Simon Glass
2022-09-25 15:02 ` [PATCH 29/45] vbe: Rename vbe_fixup to vbe_request Simon Glass
2022-09-25 15:02 ` [PATCH 30/45] vbe: Use a warning for a failed requests Simon Glass
2022-09-25 15:02 ` [PATCH 31/45] spl: Allow multiple loaders of the same type Simon Glass
2022-09-30 16:28 ` Tom Rini
2022-09-30 16:37 ` Simon Glass
2022-09-30 16:39 ` Tom Rini
2022-09-30 16:45 ` Simon Glass
2022-09-30 16:50 ` Tom Rini
2022-09-30 16:55 ` Simon Glass
2022-09-25 15:02 ` [PATCH 32/45] sandbox: Support obtaining the next phase from an image Simon Glass
2022-09-25 15:02 ` Simon Glass [this message]
2022-09-25 15:02 ` [PATCH 34/45] vbe: Support reading the next SPL phase via VBE Simon Glass
2022-09-25 15:02 ` [PATCH 35/45] vbe: Move OS implementation into a separate file Simon Glass
2022-09-25 15:02 ` [PATCH 36/45] vbe: Drop the U-Boot prefix from the version Simon Glass
2022-09-25 15:02 ` [PATCH 37/45] vbe: Add Kconfig options for VPL Simon Glass
2022-09-25 15:02 ` [PATCH 38/45] vbe: Add info about the VBE device to the fwupd node Simon Glass
2022-09-25 15:02 ` [PATCH 39/45] sandbox: Add a binman image for VPL Simon Glass
2022-09-25 15:02 ` [PATCH 40/45] vbe: Correct pylint warnings in test_vbe Simon Glass
2022-09-25 15:02 ` [PATCH 41/45] vbe: Use a manual test Simon Glass
2022-09-25 15:02 ` [PATCH 42/45] vbe: Record which phases loaded using VBE Simon Glass
2022-09-25 15:02 ` [PATCH 43/45] vbe: Add docs and a test for the VBE command Simon Glass
2022-09-25 15:02 ` [PATCH 44/45] vbe: Add a subcommand to show the VBE state Simon Glass
2022-09-25 15:02 ` [PATCH 45/45] vbe: Add a test for the VBE flow into U-Boot proper Simon Glass
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