security/vboot: Add config option to always enable the display
In order to always show the bootlogo very early in coreboot we need the option to always enable the display when VBOOT is enabled. To do this a config option is added to make sure this functionality can be provided without interfering with systems that require the standard VBOOT display handing. BUG=N/A TEST=tested on facebook fbg1701. Change-Id: I3ffaac85d2082717bb9608d536f7cec66a583789 Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36547 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-by: Nico Huber <nico.h@gmx.de>
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@ -167,6 +167,12 @@ config VBOOT_MUST_REQUEST_DISPLAY
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Unless display is specifically requested, the video option ROM is not
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loaded, and any other native display initialization code is not run.
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config VBOOT_ALWAYS_ENABLE_DISPLAY
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bool "Force to always enable display"
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default n
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help
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Set this option to indicate to vboot that display should always be enabled.
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config VBOOT_HAS_REC_HASH_SPACE
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bool
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default n
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@ -369,7 +369,7 @@ void verstage_main(void)
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ctx->flags |= VB2_CONTEXT_NOFAIL_BOOT;
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/* Mainboard/SoC always initializes display. */
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if (!CONFIG(VBOOT_MUST_REQUEST_DISPLAY))
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if (!CONFIG(VBOOT_MUST_REQUEST_DISPLAY) || CONFIG(VBOOT_ALWAYS_ENABLE_DISPLAY))
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ctx->flags |= VB2_CONTEXT_DISPLAY_INIT;
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/* Do early init (set up secdata and NVRAM, load GBB) */
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