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| author | Laszlo Ersek <lersek@redhat.com> | 2017-07-04 15:09:51 +0200 |
|---|---|---|
| committer | Laszlo Ersek <lersek@redhat.com> | 2017-07-05 22:29:28 +0200 |
| commit | d04b72c67097ba4a3f937bdfbe310e4de30c8147 (patch) | |
| tree | 5d57c94ff32269a0b638ccd4e669bf246af66ae9 | |
| parent | d5e064447f8c2bcd4477631bf6fcd8fde7aae51b (diff) | |
| download | edk2-d04b72c67097ba4a3f937bdfbe310e4de30c8147.tar.gz edk2-d04b72c67097ba4a3f937bdfbe310e4de30c8147.tar.bz2 edk2-d04b72c67097ba4a3f937bdfbe310e4de30c8147.zip | |
OvmfPkg: mention the extended TSEG near the PcdQ35TsegMbytes declaration
PlatformPei can now overwrite PcdQ35TsegMbytes; document this in
"OvmfPkg/OvmfPkg.dec".
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
| -rw-r--r-- | OvmfPkg/OvmfPkg.dec | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index c46b72f069..e5f74a1248 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -129,10 +129,11 @@ gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size|0x0|UINT64|0x27
## The following setting controls how many megabytes we configure as TSEG on
- # Q35, for SMRAM purposes. Permitted values are: 1, 2, 8. Other values cause
- # undefined behavior.
+ # Q35, for SMRAM purposes. Permitted defaults are: 1, 2, 8. Other defaults
+ # cause undefined behavior. During boot, the PCD is updated by PlatformPei
+ # to reflect the extended TSEG size, if one is advertized by QEMU.
#
- # This PCD is only consulted if PcdSmmSmramRequire is TRUE (see below).
+ # This PCD is only accessed if PcdSmmSmramRequire is TRUE (see below).
gUefiOvmfPkgTokenSpaceGuid.PcdQ35TsegMbytes|8|UINT16|0x20
[PcdsFeatureFlag]
|