OvmfPkg/AmdSevDxe: decrypt the pages of the initial SMRAM save state map

[mirror_edk2.git] / OvmfPkg / OvmfPkg.dec

diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index c46b72f069efe7c8d827fb3e82e1b6e0841b467a..27bcfc141e5a17a23ebb1dfcd5ab13c47969644e 100644 (file)
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -69,6 +69,7 @@
   gBlockMmioProtocolGuid              = {0x6b558ce3, 0x69e5, 0x4c67, {0xa6, 0x34, 0xf7, 0xfe, 0x72, 0xad, 0xbe, 0x84}}\r
   gXenBusProtocolGuid                 = {0x3d3ca290, 0xb9a5, 0x11e3, {0xb7, 0x5d, 0xb8, 0xac, 0x6f, 0x7d, 0x65, 0xe6}}\r
   gXenIoProtocolGuid                  = {0x6efac84f, 0x0ab0, 0x4747, {0x81, 0xbe, 0x85, 0x55, 0x62, 0x59, 0x04, 0x49}}\r
+  gIoMmuAbsentProtocolGuid            = {0xf8775d50, 0x8abd, 0x4adf, {0x92, 0xac, 0x85, 0x3e, 0x51, 0xf6, 0xc8, 0xdc}}\r
 \r
 [PcdsFixedAtBuild]\r
   gUefiOvmfPkgTokenSpaceGuid.PcdOvmfPeiMemFvBase|0x0|UINT32|0\r
@@ -129,10 +130,11 @@
   gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size|0x0|UINT64|0x27\r
 \r
   ## The following setting controls how many megabytes we configure as TSEG on\r
-  #  Q35, for SMRAM purposes. Permitted values are: 1, 2, 8. Other values cause\r
-  #  undefined behavior.\r
+  #  Q35, for SMRAM purposes. Permitted defaults are: 1, 2, 8. Other defaults\r
+  #  cause undefined behavior. During boot, the PCD is updated by PlatformPei\r
+  #  to reflect the extended TSEG size, if one is advertized by QEMU.\r
   #\r
-  #  This PCD is only consulted if PcdSmmSmramRequire is TRUE (see below).\r
+  #  This PCD is only accessed if PcdSmmSmramRequire is TRUE (see below).\r
   gUefiOvmfPkgTokenSpaceGuid.PcdQ35TsegMbytes|8|UINT16|0x20\r
 \r
 [PcdsFeatureFlag]\r