[coreboot-gerrit] Change in coreboot[master]: [WIP]x86: Introduce the blobolator

[Patrick Rudolph (Code Review)]

Hello Julius Werner, Angel Pons, Arthur Heymans, Daniel Maslowski, Christian Walter, Felix Singer, Philipp Deppenwiese, build bot (Jenkins), Nico Huber, Patrick Georgi, Martin Roth, 

I'd like you to reexamine a change. Please visit

    https://review.coreboot.org/c/coreboot/+/32020

to look at the new patch set (#10).

Change subject: [WIP]x86: Introduce the blobolator
......................................................................

[WIP]x86: Introduce the blobolator

This is a PoC to run arbitrary code and blobs inside an emulated
virtual machine using libx86emu, thus the name blobolator.

The libx86emu has been patched to the following:
* redirect IO to the host machine it's running on
* trace IO
* start in protected mode
* add mechanism to drop IO access
* add Kconfig to debug code it is running

Implemented features:
* Run ramstage in libx86emu
* Kconfig specific hooks by using _blobolator_drivers
  (same mechanism as __pci_driver)
* PCI decoding and BAR tracing
* POST code decoding
* Unhandled IO tracing
* Added test code in qemu emulation/q35
* Machine parseable format

TODO:
* Add support to trace only blobs, not stages.
* Improve translation of known IO to human readable format
** COM
** PCI
** APIC
** PIT
** POST

Tested on qemu. Sucessfully run ramstage in blobolator.
Tested on X11SSH-TF. Sucessfully run ramstage in blobolator
(requires additional libx86emu patches).

You need to install 3rdparty/libx86emu from
https://github.com/PatrickRudolph/libx86emu/tree/cpuid_msr_callback

Change-Id: I13e47f45e69376d046f35c04363fe3db1cfaa610
Signed-off-by: Patrick Rudolph <[e-mail]>
---
M src/Kconfig
M src/arch/x86/Makefile.inc
M src/arch/x86/boot.c
A src/arch/x86/libx86emu/Kconfig.debug
A src/arch/x86/libx86emu/Makefile.inc
A src/arch/x86/libx86emu/blobolator.c
A src/arch/x86/libx86emu/blobolator_internal.h
A src/arch/x86/libx86emu/stdarg.h
A src/arch/x86/libx86emu/stdio.h
A src/arch/x86/libx86emu/time.h
A src/arch/x86/libx86emu/trace-bios.c
A src/arch/x86/libx86emu/trace-pci.c
A src/arch/x86/libx86emu/trace-serial.c
A src/arch/x86/libx86emu/trace-skl.c
A src/arch/x86/libx86emu/trace.c
M src/arch/x86/postcar_loader.c
M src/commonlib/include/commonlib/cbmem_id.h
A src/include/blobolator.h
M src/include/rules.h
M src/include/stddef.h
M src/lib/Makefile.inc
M src/lib/hardwaremain.c
M src/lib/program.ld
M src/mainboard/emulation/qemu-q35/mainboard.c
24 files changed, 2,065 insertions(+), 7 deletions(-)


  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/20/32020/10
-- 
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-Change-Id: I13e47f45e69376d046f35c04363fe3db1cfaa610
Gerrit-Change-Number: 32020
Gerrit-PatchSet: 10
Gerrit-Owner: Patrick Rudolph <[e-mail]>
Gerrit-Reviewer: Angel Pons <[e-mail]>
Gerrit-Reviewer: Arthur Heymans <[e-mail]>
Gerrit-Reviewer: Christian Walter <[e-mail]>
Gerrit-Reviewer: Daniel Maslowski <[e-mail]>
Gerrit-Reviewer: Felix Singer <[e-mail]>
Gerrit-Reviewer: Julius Werner <[e-mail]>
Gerrit-Reviewer: Martin Roth <[e-mail]>
Gerrit-Reviewer: Nico Huber <[e-mail]>
Gerrit-Reviewer: Patrick Georgi <[e-mail]>
Gerrit-Reviewer: Patrick Rudolph <[e-mail]>
Gerrit-Reviewer: Philipp Deppenwiese <[e-mail]>
Gerrit-Reviewer: build bot (Jenkins) <[e-mail]>
Gerrit-CC: Michael Niewöhner
Gerrit-CC: Paul Menzel <[e-mail]>
Gerrit-CC: Stefan Reinauer <[e-mail]>
Gerrit-CC: Thomas Heijligen <[e-mail]>
Gerrit-MessageType: newpatchset