the following patch was just integrated into master:
commit 1fef1f51779307ff65a82b8fd86ff9fa6d2bcae0
Author: Aaron Durbin <[email protected]>
Date: Wed Dec 19 17:15:43 2012 -0600
haswell: reserve default SMRAM space
Currently the OS is free to use the memory located at the default
SMRAM space because it is not marked reserved in the e820. This can
lead to memory corruption on S3 resume because SMM setup doesn't save
this range before using it to relocate SMRAM.
Resulting tables:
coreboot memory table:
0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES
1. 0000000000001000-000000000002ffff: RAM
2. 0000000000030000-000000000003ffff: RESERVED
3. 0000000000040000-000000000009ffff: RAM
4. 00000000000a0000-00000000000fffff: RESERVED
5. 0000000000100000-0000000000efffff: RAM
6. 0000000000f00000-0000000000ffffff: RESERVED
7. 0000000001000000-00000000acebffff: RAM
8. 00000000acec0000-00000000acffffff: CONFIGURATION TABLES
9. 00000000ad000000-00000000af9fffff: RESERVED
10. 00000000f0000000-00000000f3ffffff: RESERVED
11. 00000000fed10000-00000000fed19fff: RESERVED
12. 00000000fed84000-00000000fed84fff: RESERVED
13. 0000000100000000-000000018f5fffff: RAM
e820 map has 13 items:
0: 0000000000000000 - 0000000000030000 = 1 RAM
1: 0000000000030000 - 0000000000040000 = 2 RESERVED
2: 0000000000040000 - 000000000009f400 = 1 RAM
3: 000000000009f400 - 00000000000a0000 = 2 RESERVED
4: 00000000000f0000 - 0000000000100000 = 2 RESERVED
5: 0000000000100000 - 0000000000f00000 = 1 RAM
6: 0000000000f00000 - 0000000001000000 = 2 RESERVED
7: 0000000001000000 - 00000000acec0000 = 1 RAM
8: 00000000acec0000 - 00000000afa00000 = 2 RESERVED
9: 00000000f0000000 - 00000000f4000000 = 2 RESERVED
10: 00000000fed10000 - 00000000fed1a000 = 2 RESERVED
11: 00000000fed84000 - 00000000fed85000 = 2 RESERVED
12: 0000000100000000 - 000000018f600000 = 1 RAM
Booted and checked e820 as well as coreboot table information.
Change-Id: Ie4985c748b591bf8c0d6a2b59549b698c9ad6cfe
Signed-off-by: Aaron Durbin <[email protected]>
Reviewed-on: http://review.coreboot.org/2688
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <[email protected]>
Build-Tested: build bot (Jenkins) at Fri Mar 15 00:05:34 2013, giving +1
See http://review.coreboot.org/2688 for details.
-gerrit
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