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authorSubrata Banik <subrata.banik@intel.com>2017-09-21 19:22:22 +0530
committerAaron Durbin <adurbin@chromium.org>2017-09-22 15:32:03 +0000
commit7387e04a35f8702918d3b1e6cff558ad3f4a3fa0 (patch)
tree9e2cde09c1b77b7e9d9c50e8cc708d1e75b80f88 /payloads
parentef059c5a092f898f9cecd3f2d94acc263b30b48e (diff)
soc/intel/skylake: Use EBDA area to store cbmem_top address
This patch uses BIOS EBDA area to store relevent details like cbmem top during romstage after MRC init is done. Also provide provision to use the same EBDA data across various stages without reexecuting memory map algorithm. BRANCH=none BUG=b:63974384 TEST=Ensures HW based memmap algorithm is executing once in romstage and store required data into EBDA for other stage to avoid redundant calculation and get cbmem_top start from EBDA area. Change-Id: Ib1a674efa5ab3a4fc076fc93236edd911d28b398 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/21424 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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