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

[Felix Singer (Code Review)]

Felix Singer has uploaded a new patch set (#3) to the change originally created by Patrick Rudolph. ( https://review.coreboot.org/c/coreboot/+/32020 )

Change subject: [WIP]x86: Introduce the blobolator
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[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
* Run postcar in libx86emu

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.

Change-Id: I13e47f45e69376d046f35c04363fe3db1cfaa610
Signed-off-by: Patrick Rudolph 
---
M src/Kconfig
M src/arch/x86/boot.c
A src/include/blobolator.h
M src/mainboard/emulation/qemu-i440fx/romstage.c
M src/mainboard/emulation/qemu-q35/romstage.c
M src/vendorcode/Makefile.inc
A src/vendorcode/libx86emu/Makefile.inc
A src/vendorcode/libx86emu/blobolator.c
A src/vendorcode/libx86emu/decode.c
A src/vendorcode/libx86emu/include/decode.h
A src/vendorcode/libx86emu/include/mem.h
A src/vendorcode/libx86emu/include/ops.h
A src/vendorcode/libx86emu/include/prim_ops.h
A src/vendorcode/libx86emu/include/x86emu.h
A src/vendorcode/libx86emu/include/x86emu_int.h
A src/vendorcode/libx86emu/mem.c
A src/vendorcode/libx86emu/ops.c
A src/vendorcode/libx86emu/ops2.c
A src/vendorcode/libx86emu/prim_ops.c
19 files changed, 14,533 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/20/32020/3