Clarify that _ROM_RUN Kconfig options control if ROMs are run by coreboot
Also clarify that enabling these options is generally not desirable if using SeaBIOS as payload since the option ROMs are run by SeaBIOS with more complete BIOS interrupt services available than coreboot. Change-Id: Ic4a45c351a4933aedad08d70a088eab04ca35b05 Signed-off-by: Peter Stuge <peter@stuge.se> Reviewed-on: http://review.coreboot.org/1636 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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@ -23,37 +23,60 @@ config VGA_ROM_RUN
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bool "Run VGA Option ROMs"
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bool "Run VGA Option ROMs"
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default y
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default y
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help
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help
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Execute VGA Option ROMs, if found. This is required to enable
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Execute VGA Option ROMs in coreboot if found. This is required
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PCI/AGP/PCI-E video cards.
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to enable PCI/AGP/PCI-E video cards when not using a SeaBIOS
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payload.
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When using a SeaBIOS payload it runs all option ROMs with much
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more complete BIOS interrupt services available than coreboot,
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which some option ROMs require in order to function correctly.
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If unsure, say N when using SeaBIOS as payload, Y otherwise.
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config S3_VGA_ROM_RUN
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config S3_VGA_ROM_RUN
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bool "Re-run VGA Option ROMs on S3 resume"
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bool "Re-run VGA Option ROMs on S3 resume"
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default y
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default y
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depends on VGA_ROM_RUN && HAVE_ACPI_RESUME
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depends on VGA_ROM_RUN && HAVE_ACPI_RESUME
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help
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help
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Execute VGA Option ROMs when coming out of an S3 resume.
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Execute VGA Option ROMs in coreboot when resuming from S3 suspend.
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When using a SeaBIOS payload it runs all option ROMs with much
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more complete BIOS interrupt services available than coreboot,
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which some option ROMs require in order to function correctly.
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If unsure, say N when using SeaBIOS as payload, Y otherwise.
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config PCI_ROM_RUN
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config PCI_ROM_RUN
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bool "Run non-VGA Option ROMs"
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bool "Run non-VGA Option ROMs"
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default y
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default y
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help
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help
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Execute non-VGA PCI Option ROMs, if found.
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Execute non-VGA PCI Option ROMs in coreboot if found.
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Examples include IDE/SATA controller Option ROMs and Option ROMs
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Examples include IDE/SATA controller Option ROMs and Option ROMs
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for network cards (NICs).
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for network cards (NICs).
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When using a SeaBIOS payload it runs all option ROMs with much
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more complete BIOS interrupt services available than coreboot,
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which some option ROMs require in order to function correctly.
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If unsure, say N when using SeaBIOS as payload, Y otherwise.
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config ON_DEVICE_ROM_RUN
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config ON_DEVICE_ROM_RUN
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bool "Run Option ROMs on PCI devices"
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bool "Run Option ROMs on PCI devices"
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default y
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default y
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help
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help
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Execute Option ROMs that are stored on PCI/PCIe/AGP devices.
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Execute Option ROMs stored on PCI/PCIe/AGP devices in coreboot.
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If disabled, only Option ROMs stored in CBFS will be executed. If
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If disabled, only Option ROMs stored in CBFS will be executed by
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you are concerned about security, you might want to disable this
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coreboot. If you are concerned about security, you might want to
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option, but it might leave your system in a state of degraded
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disable this option, but it might leave your system in a state of
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functionality.
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degraded functionality.
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If unsure, say Y
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When using a SeaBIOS payload it runs all option ROMs with much
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more complete BIOS interrupt services available than coreboot,
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which some option ROMs require in order to function correctly.
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If unsure, say N when using SeaBIOS as payload, Y otherwise.
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choice
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choice
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prompt "Option ROM execution type"
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prompt "Option ROM execution type"
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