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arch/x86: initialize EBDA in S3 and S0/S5 path 

It's more consistent to re-initialize EBDA in all boot paths.
That way, the data living in EBDA is cleared prior to be
accessed (assuming it's after setup_ebda()).

Change-Id: I05ff84f869f7b6a463e52b4cb954acc5566475cd
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/21997
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
This commit is contained in:
Aaron Durbin 2017-10-12 11:32:20 -06:00
parent c714137d95
commit c06a3f72f8
1 changed files with 0 additions and 5 deletions
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5
src/arch/x86/ebda.c
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@ -18,7 +18,6 @@
#include <string.h> #include <string.h>
#include <arch/io.h> #include <arch/io.h>
#include <arch/ebda.h> #include <arch/ebda.h>
#include <arch/acpi.h>
#include <commonlib/endian.h> #include <commonlib/endian.h>
#include <console/console.h> #include <console/console.h>
@ -84,10 +83,6 @@ void setup_ebda(u32 low_memory_size, u16 ebda_segment, u16 ebda_size)
u16 ebda_kb; u16 ebda_kb;
void *ebda; void *ebda;
/* Skip in S3 resume path */
if (acpi_is_wakeup_s3())
return;
if (!low_memory_size || !ebda_segment || !ebda_size) if (!low_memory_size || !ebda_segment || !ebda_size)
return; return;