From: Sebastien Boeuf <sebastien.bo...@intel.com>

Cloud Hypervisor doesn't emulate the legacy 8254 PIT, which is why
instead of relying on it as the timer UEFI services, rely on the
XenTimerDxe implementation. This is not Xen specific, as it simply uses
the local APIC timer triggering interrupts on the vector 32.

Acked-by: Jiewen Yao <jiewen....@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.bo...@intel.com>
---
 OvmfPkg/CloudHv/CloudHvX64.dsc | 3 ++-
 OvmfPkg/CloudHv/CloudHvX64.fdf | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/OvmfPkg/CloudHv/CloudHvX64.dsc b/OvmfPkg/CloudHv/CloudHvX64.dsc
index 76b639db81..5e11942d08 100644
--- a/OvmfPkg/CloudHv/CloudHvX64.dsc
+++ b/OvmfPkg/CloudHv/CloudHvX64.dsc
@@ -607,6 +607,7 @@
   gUefiOvmfPkgTokenSpaceGuid.PcdPciMmio64Size|0x800000000
 !endif
 
+  gEfiMdePkgTokenSpaceGuid.PcdFSBClock|1000000000
   gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|0
 
   # Set video resolution for text setup.
@@ -733,7 +734,7 @@
   OvmfPkg/8259InterruptControllerDxe/8259.inf
   UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.inf
   UefiCpuPkg/CpuDxe/CpuDxe.inf
-  OvmfPkg/8254TimerDxe/8254Timer.inf
+  OvmfPkg/XenTimerDxe/XenTimerDxe.inf
   OvmfPkg/IncompatiblePciDeviceSupportDxe/IncompatiblePciDeviceSupport.inf
   OvmfPkg/PciHotPlugInitDxe/PciHotPlugInit.inf
   MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe.inf {
diff --git a/OvmfPkg/CloudHv/CloudHvX64.fdf b/OvmfPkg/CloudHv/CloudHvX64.fdf
index 895ac3b740..f35458551b 100644
--- a/OvmfPkg/CloudHv/CloudHvX64.fdf
+++ b/OvmfPkg/CloudHv/CloudHvX64.fdf
@@ -235,7 +235,7 @@ INF  MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
 INF  OvmfPkg/8259InterruptControllerDxe/8259.inf
 INF  UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.inf
 INF  UefiCpuPkg/CpuDxe/CpuDxe.inf
-INF  OvmfPkg/8254TimerDxe/8254Timer.inf
+INF  OvmfPkg/XenTimerDxe/XenTimerDxe.inf
 INF  OvmfPkg/IncompatiblePciDeviceSupportDxe/IncompatiblePciDeviceSupport.inf
 INF  OvmfPkg/PciHotPlugInitDxe/PciHotPlugInit.inf
 INF  MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe.inf
-- 
2.30.2

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