OvmfPkg/OvmfXen: Override PcdFSBClock to Xen vLAPIC timer frequency

PcdFSBClock is used by SecPeiDxeTimerLibCpu, the TimerLib
implementation. It will also be used by XenTimerDxe. Override
PcdFSBClock to match Xen vLAPIC timer frequency.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190813113119.14804-30-anthony.perard@citrix.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index 22970ed..477d8c7 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -439,6 +439,9 @@
   # Point to the MdeModulePkg/Application/UiApp/UiApp.inf

   gEfiMdeModulePkgTokenSpaceGuid.PcdBootManagerMenuFile|{ 0x21, 0xaa, 0x2c, 0x46, 0x14, 0x76, 0x03, 0x45, 0x83, 0x6e, 0x8a, 0xb6, 0xf4, 0x66, 0x23, 0x31 }

 

+  ## Xen vlapic's frequence is 100 MHz

+  gEfiMdePkgTokenSpaceGuid.PcdFSBClock|100000000

+

 ################################################################################

 #

 # Pcd Dynamic Section - list of all EDK II PCD Entries defined by this Platform