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| author | Aaron Durbin <adurbin@chromium.org> | 2014-02-13 10:26:18 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@google.com> | 2014-02-16 20:42:07 +0100 |
| commit | b4b9eb399ef2f5539afce6e43b49d4cf1613ae9e (patch) | |
| tree | 363bfb9ef15b247fbc9f1de2aca8941422acba4e /src/cpu/x86/Kconfig | |
| parent | af5ca44784618aec5474991ac50adc3c73020f45 (diff) | |
| download | coreboot-b4b9eb399ef2f5539afce6e43b49d4cf1613ae9e.tar.xz | |
x86: provide infrastructure to backup default SMM region
Certain CPUs require the default SMM region to be backed up
on resume after a suspend. The reason is that in order to
relocate the SMM region the default SMM region has to be used.
As coreboot is unaware of how that memory is used it needs to
be backed up. Therefore provide a common method for doing this.
Change-Id: I65fe1317dc0b2203cb29118564fdba995770ffea
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5216
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/cpu/x86/Kconfig')
| -rw-r--r-- | src/cpu/x86/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index 21282c321a..98238d8f06 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -122,3 +122,9 @@ config PARALLEL_MP This option uses common MP infrastructure for bringing up APs in parallel. It additionally provides a more flexible mechanism for sequencing the steps of bringing up the APs. + +config BACKUP_DEFAULT_SMM_REGION + def_bool n + help + The cpu support will select this option if the default SMM region + needs to be backed up for suspend/resume purposes. |