[edk2-devel] [PATCH v3 30/35] OvmfPkg/OvmfXen: Override PcdFSBClock to Xen vLAPIC timer frequency

Anthony PERARD posted 35 patches 5 years, 4 months ago
There is a newer version of this series
[edk2-devel] [PATCH v3 30/35] OvmfPkg/OvmfXen: Override PcdFSBClock to Xen vLAPIC timer frequency
Posted by Anthony PERARD 5 years, 4 months ago
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>
---

Notes:
    v3:
    - expand commit message body to be standalone

 OvmfPkg/OvmfXen.dsc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index 68d82da7aa..bc6b6602c6 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -439,6 +439,9 @@ [PcdsFixedAtBuild]
   # 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

-- 
Anthony PERARD


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