diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-06-17 10:00:28 +0300 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-06-21 00:49:12 +0200 |
| commit | 15fa992cc8467b4cbd8ebea62e3e4c947827137e (patch) | |
| tree | 99e598cc9f4d088a57e04218f2f979a83a6158d6 /src/cpu/intel/model_6ex | |
| parent | 4c3de9c3edd7cb6fabc72337171862930354f0bf (diff) | |
intel/model_6ex: Prepare for dynamic CONFIG_RAMTOP
Change-Id: I9bfaa53f8d09962d36df1e86a0edcf100bb08403
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15229
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/cpu/intel/model_6ex')
| -rw-r--r-- | src/cpu/intel/model_6ex/cache_as_ram.inc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/cpu/intel/model_6ex/cache_as_ram.inc b/src/cpu/intel/model_6ex/cache_as_ram.inc index 2eb824cea7..f4c4af86d3 100644 --- a/src/cpu/intel/model_6ex/cache_as_ram.inc +++ b/src/cpu/intel/model_6ex/cache_as_ram.inc @@ -132,7 +132,12 @@ clear_mtrrs: post_code(0x23) /* Call romstage.c main function. */ - call main + call romstage_main + + /* Save return value from romstage_main. It contains the stack to use + * after cache-as-ram is torn down. It also contains the information + * for setting up MTRRs. */ + movl %eax, %ebx post_code(0x2f) @@ -219,7 +224,8 @@ __main: post_code(POST_PREPARE_RAMSTAGE) cld /* Clear direction flag. */ - movl $CONFIG_RAMTOP, %esp + /* Setup stack as indicated by return value from romstage_main(). */ + movl %ebx, %esp movl %esp, %ebp call copy_and_run |