[coreboot-gerrit] Patch set updated for coreboot: SeaBIOS Kconfig: Update logging

[Martin Roth (martinroth@google.com)]

Martin Roth (martinroth at google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18210

-gerrit

commit 3c8174291d475bccc44d6984ec9f477acf61785e
Author: Martin Roth <martinroth at google.com>
Date:   Mon Jan 23 14:56:55 2017 -0700

    SeaBIOS Kconfig: Update logging
    
    The SeaBIOS VGA ROM outputs interrupts at log level 3, leading to
    an extreme slowdown in boot speed.
    
    - If SeaBIOS VGA is used, limit default log level to 2.
    - Add help text for what is displayed at various levels.
    - Get rid of separate type & prompt lines.
    
    Change-Id: I5a8b75bd44748cb94a83a77ac3a379c8a9587e7b
    Signed-off-by: Martin Roth <martinroth at google.com>
---
 payloads/external/SeaBIOS/Kconfig | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/payloads/external/SeaBIOS/Kconfig b/payloads/external/SeaBIOS/Kconfig
index 276f75d..9be7689 100644
--- a/payloads/external/SeaBIOS/Kconfig
+++ b/payloads/external/SeaBIOS/Kconfig
@@ -95,13 +95,32 @@ config PAYLOAD_VGABIOS_FILE
 	default "payloads/external/SeaBIOS/seabios/out/vgabios.bin"
 
 config SEABIOS_DEBUG_LEVEL
-	prompt "SeaBIOS debug level (verbosity)"
+	int "SeaBIOS debug level (verbosity)"
+	default 0 if SEABIOS_VGA_COREBOOT && (DEFAULT_CONSOLE_LOGLEVEL_0 || DEFAULT_CONSOLE_LOGLEVEL_1)
+	default 1 if SEABIOS_VGA_COREBOOT && (DEFAULT_CONSOLE_LOGLEVEL_2 || DEFAULT_CONSOLE_LOGLEVEL_3)
+	default 2 if SEABIOS_VGA_COREBOOT
 	default DEFAULT_CONSOLE_LOGLEVEL
-	int
 	help
 	  The higher the number, the more verbose SeaBIOS will be. The range is
 	  not well defined but the typical values range from 0 to about 9 inclusive
 	  where 0 disables all output. Set this value to -1 to use SeaBIOS' default.
 
-	  The default is to use coreboot's loglevel.
+	  The default is to use coreboot's loglevel unless using the SeaBIOS
+	  VGA rom, where it defaults to 2 or below due to exessive logging
+	  above that level.
+
+	  Output at various SeaBIOS log levels:
+	  level 1  - Basic output, interrupts 5, 18h, 19h, 40h, SMP, PNP, PMM
+	  level 2  - AHCI, Floppy, Basic ps2, interrupts 11h, 12h, 14h, 17h
+	  level 3  - SeaBIOS VGA BIOS interrupts, bootsplash, initializations
+	  level 4  - bios tables, more optionrom
+	  level 5  - Extra bootsplash, more XHCI
+	  level 6  - ATA commands, extra optionrom
+	  level 7  - extra ps2 commands, more OHCI & EHCI
+	  level 8  - extra malloc info, more AHCI
+	  level 9  - interrupts 15h, 16h, 1ah, APM, PCI, SMIs, PCIBIOS,
+	             USB-HID commands, SDcard commands, Floppy commands
+	  level 10 - interrupt 13h (Drives other than floppy)
+	  level 20 - interrupt 10h (Display)
+
 endif