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vboot: communicate display requirements with vb2api_fw_phase1 

Input: tell vb2api_fw_phase1 if display unconditionally available
Output: vb2api_fw_phase1 may request coreboot to initialize
        display, if needed based on some internal request

Move setting the VBOOT_FLAG_DISPLAY_REQUESTED flag into
verstage_main.

BUG=b:124141368, b:124192753, chromium:948529
TEST=make clean && make test-abuild
BRANCH=none

Change-Id: I81c82c46303564b63b8a32e7f80beb9d891a4628
Cq-Depend: chromium:1564232
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32324
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Joel Kitching 2019-04-12 15:57:43 +08:00 committed by Patrick Georgi
parent 9e8cf3cc86
commit 5923d67cfd
2 changed files with 12 additions and 6 deletions
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9
src/security/vboot/vboot_handoff.c
View File

@ -68,14 +68,11 @@ static void fill_vboot_handoff(struct vboot_handoff *vboot_handoff,
vb_sd->flags |= VBSD_BOOT_DEV_SWITCH_ON;
vb_sd->flags |= VBSD_LF_DEV_SWITCH_ON;
}
/* Inform vboot if the display was requested by vboot kernel phase
or enabled by dev/rec mode. */
/* TODO(chromium:948529): Remove these two flags after downstream
vboot code longer reads them. */
if (vboot_wants_oprom() || vb2_sd->recovery_reason ||
vb2_sd->flags & VB2_SD_FLAG_DEV_MODE_ENABLED) {
vboot_get_working_data()->flags |= VBOOT_WD_FLAG_DISPLAY_INIT;
vb2_sd->flags & VB2_SD_FLAG_DEV_MODE_ENABLED)
vb_sd->flags |= VBSD_OPROM_LOADED;
}
/* TODO: Remove when depthcharge no longer reads this flag. */
if (CONFIG(VBOOT_MUST_REQUEST_DISPLAY))
vb_sd->flags |= VBSD_OPROM_MATTERS;

9
src/security/vboot/vboot_logic.c
View File

@ -336,6 +336,10 @@ void verstage_main(void)
if (CONFIG(VBOOT_LID_SWITCH) && !get_lid_switch())
ctx.flags |= VB2_CONTEXT_NOFAIL_BOOT;
/* Mainboard/SoC always initializes display. */
if (!CONFIG(VBOOT_MUST_REQUEST_DISPLAY))
ctx.flags |= VB2_CONTEXT_DISPLAY_INIT;
/* Do early init (set up secdata and NVRAM, load GBB) */
printk(BIOS_INFO, "Phase 1\n");
rv = vb2api_fw_phase1(&ctx);
@ -360,6 +364,11 @@ void verstage_main(void)
vboot_reboot();
}
/* Is vboot declaring that display is available? If so, we should mark
it down, so that the mainboard/SoC knows to initialize display. */
if (ctx.flags & VB2_CONTEXT_DISPLAY_INIT)
vboot_get_working_data()->flags |= VBOOT_WD_FLAG_DISPLAY_INIT;
/* Determine which firmware slot to boot (based on NVRAM) */
printk(BIOS_INFO, "Phase 2\n");
rv = vb2api_fw_phase2(&ctx);