This patch sets PcdPciDisableBusEnumeration to true then makes use of
PublishPeiMemory and XenMemMapInitialization to construct memory map for
Xen guest.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
OvmfPkg/OvmfPkgIa32.dsc | 6 +++++-
OvmfPkg/OvmfPkgIa32X64.dsc | 6 +++++-
OvmfPkg/OvmfPkgX64.dsc | 6 +++++-
OvmfPkg/PlatformPei/Platform.c | 13 +++++++++++--
OvmfPkg/PlatformPei/PlatformPei.inf | 1 +
5 files changed, 27 insertions(+), 5 deletions(-)
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index 760bd41..d2341d6 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -320,6 +320,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64|0
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0
+ gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration|FALSE
################################################################################
@@ -384,7 +385,10 @@
UefiCpuPkg/CpuDxe/CpuDxe.inf
PcAtChipsetPkg/8254TimerDxe/8254Timer.inf
PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf
- MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
+ MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf {
+ <LibraryClasses>
+ PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
+ }
PcAtChipsetPkg/KbcResetDxe/Reset.inf
MdeModulePkg/Universal/Metronome/Metronome.inf {
<LibraryClasses>
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
index 268d722..c3e1a80 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -326,6 +326,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64|0
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0
+ gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration|FALSE
################################################################################
@@ -391,7 +392,10 @@
UefiCpuPkg/CpuDxe/CpuDxe.inf
PcAtChipsetPkg/8254TimerDxe/8254Timer.inf
PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf
- MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
+ MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf {
+ <LibraryClasses>
+ PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
+ }
PcAtChipsetPkg/KbcResetDxe/Reset.inf
MdeModulePkg/Universal/Metronome/Metronome.inf {
<LibraryClasses>
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index 53945d0..4043f69 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -325,6 +325,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64|0
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase|0
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0
+ gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration|FALSE
################################################################################
@@ -389,7 +390,10 @@
UefiCpuPkg/CpuDxe/CpuDxe.inf
PcAtChipsetPkg/8254TimerDxe/8254Timer.inf
PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf
- MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
+ MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf {
+ <LibraryClasses>
+ PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
+ }
PcAtChipsetPkg/KbcResetDxe/Reset.inf
MdeModulePkg/Universal/Metronome/Metronome.inf {
<LibraryClasses>
diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c
index 83acd8b..6c40190 100644
--- a/OvmfPkg/PlatformPei/Platform.c
+++ b/OvmfPkg/PlatformPei/Platform.c
@@ -416,7 +416,12 @@ InitializePlatform (
XenLeaf = XenDetect ();
- TopOfMemory = MemDetect ();
+ if (XenLeaf != 0) {
+ PublishPeiMemory ();
+ PcdSetBool (PcdPciDisableBusEnumeration, TRUE);
+ } else {
+ TopOfMemory = MemDetect ();
+ }
if (XenLeaf != 0) {
DEBUG ((EFI_D_INFO, "Xen was detected\n"));
@@ -427,7 +432,11 @@ InitializePlatform (
PeiFvInitialization ();
- MemMapInitialization (TopOfMemory);
+ if (XenLeaf != 0) {
+ XenMemMapInitialization ();
+ } else {
+ MemMapInitialization (TopOfMemory);
+ }
MiscInitialization ();
diff --git a/OvmfPkg/PlatformPei/PlatformPei.inf
b/OvmfPkg/PlatformPei/PlatformPei.inf
index 3d5cbbb..7fe9d47 100644
--- a/OvmfPkg/PlatformPei/PlatformPei.inf
+++ b/OvmfPkg/PlatformPei/PlatformPei.inf
@@ -65,6 +65,7 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvStoreReserved
+ gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration
gUefiCpuPkgTokenSpaceGuid.PcdCpuLocalApicBaseAddress
[Ppis]
--
1.7.10.4