[edk2-devel] [PATCH v3 35/35] OvmfPkg/OvmfXen: use RealTimeClockRuntimeDxe from EmbeddedPkg

[Anthony PERARD]

A Xen PVH guest doesn't have a RTC that OVMF would expect, so
PcatRealTimeClockRuntimeDxe fails to initialize and prevent the
firmware from finish to boot. To prevent that, we will use
XenRealTimeClockLib which simply always return the same time.
This will work on both Xen PVH and HVM guests.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard at citrix.com>
Acked-by: Laszlo Ersek <lersek at redhat.com>
---

Notes:
    v3:
    - moved RealTimeClockLib|*/XenRealTimeClockLib.inf to the global
      [LibraryClasses]

 OvmfPkg/OvmfXen.dsc | 3 ++-
 OvmfPkg/OvmfXen.fdf | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index af92ce3ed2..4f626fb5ef 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -199,6 +199,7 @@ [LibraryClasses]
   XenIoMmioLib|OvmfPkg/Library/XenIoMmioLib/XenIoMmioLib.inf

 

   Tcg2PhysicalPresenceLib|OvmfPkg/Library/Tcg2PhysicalPresenceLibNull/DxeTcg2PhysicalPresenceLib.inf

+  RealTimeClockLib|OvmfPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.inf

 

 [LibraryClasses.common]

   BaseCryptLib|CryptoPkg/Library/BaseCryptLib/BaseCryptLib.inf

@@ -564,7 +565,7 @@ [Components]
   }

   MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf

   MdeModulePkg/Universal/Metronome/Metronome.inf

-  PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf

+  EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf

   MdeModulePkg/Universal/DriverHealthManagerDxe/DriverHealthManagerDxe.inf

   MdeModulePkg/Universal/BdsDxe/BdsDxe.inf {

     <LibraryClasses>

diff --git a/OvmfPkg/OvmfXen.fdf b/OvmfPkg/OvmfXen.fdf
index 517a492f14..e6e9e184ef 100644
--- a/OvmfPkg/OvmfXen.fdf
+++ b/OvmfPkg/OvmfXen.fdf
@@ -307,7 +307,7 @@ [FV.DXEFV]
 INF  MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf

 INF  MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf

 INF  MdeModulePkg/Universal/Metronome/Metronome.inf

-INF  PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf

+INF  EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf

 

 INF  OvmfPkg/XenIoPvhDxe/XenIoPvhDxe.inf

 INF  OvmfPkg/XenIoPciDxe/XenIoPciDxe.inf

-- 
Anthony PERARD


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