IntelFsp2Pkg: FSP can utilize bootloader stack

[mirror_edk2.git] / IntelFsp2Pkg / IntelFsp2Pkg.dec

diff --git a/IntelFsp2Pkg/IntelFsp2Pkg.dec b/IntelFsp2Pkg/IntelFsp2Pkg.dec
index 64a31b350539a15dadff87da96e17a66bef9bae8..d4c6d221a14ad6c8ebc815d018668d03f3f4b313 100644 (file)
--- a/IntelFsp2Pkg/IntelFsp2Pkg.dec
+++ b/IntelFsp2Pkg/IntelFsp2Pkg.dec
@@ -86,8 +86,12 @@
   gIntelFsp2PkgTokenSpaceGuid.PcdFspBootFirmwareVolumeBase|0xFFF80000|UINT32|0x10000003\r
   gIntelFsp2PkgTokenSpaceGuid.PcdFspHeaderSpecVersion     |      0x20| UINT8|0x00000002\r
 \r
+  #\r
   # x % of FSP temporary memory will be used for heap\r
   # (100 - x) % of FSP temporary memory will be used for stack\r
+  # 0 means FSP will share the stack with boot loader and FSP temporary memory is heap\r
+  #   Note: This mode assumes boot loader stack is large enough for FSP to use.\r
+  #\r
   gIntelFsp2PkgTokenSpaceGuid.PcdFspHeapSizePercentage    |        50| UINT8|0x10000004\r
   #\r
   # Maximal Interrupt supported in IDT table.\r