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mb/emulation/qemu-q35,qemu-i440fx: Add x86_64 support

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* Enable optional x86_64 romstage, postcar and ramstage
* Add Kconfig for x86_64 compilation
* Add documentation for x86 qemu mainboards
* Increase CAR stack as x86_64 uses more than 0x4000 bytes

Working:
* Boots to Linux
* Boots to SeaBIOS
* Drops to protected mode at end of ramstage
* Enumerates PCI devices
* Relocateable ramstage
* SMM

Change-Id: If2f02a95b2f91ab51043d4e81054354f4a6eb5d5
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29667
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Patrick Rudolph
2018-11-15 13:42:15 +01:00
committed by Patrick Rudolph
parent e3dd57e106
commit 57907fcebf
5 changed files with 165 additions and 19 deletions
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2
Documentation/mainboard/index.md
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@@ -37,6 +37,8 @@ The boards in this section are not real mainboards, but emulators.
- [Spike RISC-V emulator](emulation/spike-riscv.md)
- [Qemu RISC-V emulator](emulation/qemu-riscv.md)
- [Qemu AArch64 emulator](emulation/qemu-aarch64.md)
- [Qemu x86 Q35](emulation/qemu-q35.md)
- [Qemu x86 PC](emulation/qemu-i440fx.md)
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