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authorKyösti Mälkki <kyosti.malkki@gmail.com>2016-06-28 07:38:46 +0300
committerKyösti Mälkki <kyosti.malkki@gmail.com>2016-11-09 20:52:07 +0100
commit9d6f365643d78c223b7ebf9e214381ec707b482a (patch)
tree96a77b4bb24e865f854bec44cb3e4f2d2061e43d /src/Kconfig
parent2c7ad8c8d3f7e508ee64f1af4fe81a60b8c84da1 (diff)
downloadcoreboot-9d6f365643d78c223b7ebf9e214381ec707b482a.tar.xz
ACPI S3: Remove HIGH_MEMORY_SAVE where possible
Add implementation to use actual requirements of ramstage size for S3 resume backup in CBMEM. The backup covers complete pages of 4 KiB. Only the required amount of low memory is backed up when ACPI_TINY_LOWMEM_BACKUP is selected for the platform. Enable this option for AGESA and binaryPI, other platforms (without RELOCATABLE_RAMSTAGE) currently keep their romstage ramstack in low memory for s3 resume path. Change-Id: Ide7ce013f3727c2928cdb00fbcc7e7e84e859ff1 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/15255 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Diffstat (limited to 'src/Kconfig')
-rw-r--r--src/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/Kconfig b/src/Kconfig
index d6af6ebacd..d6ada63548 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -539,6 +539,19 @@ config HAVE_ACPI_RESUME
bool
default n
+config ACPI_TINY_LOWMEM_BACKUP
+ bool
+ default n
+ help
+ On S3 resume path, backup only the region of low memory ramstage
+ will occupy. Requires platform places romstage ramstack in CBMEM.
+
+config ACPI_HUGE_LOWMEM_BACKUP
+ bool
+ default !ACPI_TINY_LOWMEM_BACKUP
+ help
+ On S3 resume path, backup low memory from RAMBASE..RAMTOP in CBMEM.
+
config RESUME_PATH_SAME_AS_BOOT
bool
default y if ARCH_X86