Robert Zieba ac8c378777 cpu/x86/smm: Add PCI resource store functionality ... In certain cases data within protected memmory areas like SMRAM could be leaked or modified if an attacker remaps PCI BARs to point within that area. Add support to the existing SMM runtime to allow storing PCI resources in SMRAM and then later retrieving them. BRANCH=guybrush BUG=b:186792595 TEST=builds Signed-off-by: Robert Zieba <robertzieba@google.com> Change-Id: I23fb1e935dd1b89f1cc5c834cc2025f0fe5fda37 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67931 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>		2023-03-05 15:31:07 +00:00
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Makefile.inc	cpu/x86/smm: Add PCI resource store functionality	2023-03-05 15:31:07 +00:00
pci_resource_store.c	cpu/x86/smm: Add PCI resource store functionality	2023-03-05 15:31:07 +00:00
save_state.c	cpu/x86: Clean up includes	2022-10-26 16:37:34 +00:00
smm_module_handler.c	cpu/x86/smm: Add PCI resource store functionality	2023-03-05 15:31:07 +00:00
smm_module_loader.c	cpu/x86/smm: Add PCI resource store functionality	2023-03-05 15:31:07 +00:00
smm_stub.S	cpu/x86/smm: Add sinkhole mitigation to relocatable smmstub	2022-04-11 14:12:27 +00:00
tseg_region.c	cpu/x86/smm: Use common SMM_ASEG region	2022-11-16 15:34:44 +00:00