[edk2-devel] [PATCH v3 0/7] OvmfXen: Set PcdFSBClock at runtime

[Anthony PERARD via groups.io]

Patch series available in this git branch:
git://xenbits.xen.org/people/aperard/ovmf.git br.apic-timer-freq-v3

Changes in v3:
- typos and codying style

Changes in v2:
- main change is to allow mapping of Xen pages outside of the RAM
  see patch: "OvmfPkg/XenPlatformPei: Map extra physical address"
- that new function allows to map the Xen shared info page (where we can find
  information about tsc frequency) at the highest physical address allowed.

Hi,

OvmfXen uses the APIC timer, but with an hard-coded frequency that may change
as pointed out here:
  https://edk2.groups.io/g/devel/message/45185
  <20190808134423.ybqg3qkpw5ucfzk4 at Air-de-Roger>

This series changes that so the frequency is calculated at runtime.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2490

There is also one cleanup patch that has nothing to do with the rest.

Cheers,

Anthony PERARD (7):
  OvmfPkg/XenResetVector: Silent a warning from nasm
  MdePkg: Allow PcdFSBClock to by Dynamic
  OvmfPkg/IndustryStandard/Xen: Apply EDK2 coding style to
    XEN_VCPU_TIME_INFO
  OvmfPkg/IndustryStandard: Introduce PageTable.h
  OvmfPkg/XenPlatformPei: Map extra physical address
  OvmfPkg/XenPlatformPei: Calibrate APIC timer frequency
  OvmfPkg/OvmfXen: Set PcdFSBClock

 MdePkg/MdePkg.dec                             |   8 +-
 OvmfPkg/OvmfXen.dsc                           |   4 +-
 OvmfPkg/XenPlatformPei/XenPlatformPei.inf     |   4 +
 .../IndustryStandard/PageTable.h}             | 117 +-------
 OvmfPkg/Include/IndustryStandard/Xen/xen.h    |  17 +-
 .../BaseMemEncryptSevLib/X64/VirtualMemory.h  | 143 +---------
 OvmfPkg/XenPlatformPei/Platform.h             |  10 +
 OvmfPkg/XenPlatformPei/Platform.c             |   1 +
 OvmfPkg/XenPlatformPei/Xen.c                  | 252 ++++++++++++++++++
 OvmfPkg/XenResetVector/Ia32/XenPVHMain.asm    |   2 +-
 10 files changed, 287 insertions(+), 271 deletions(-)
 copy OvmfPkg/{Library/BaseMemEncryptSevLib/X64/VirtualMemory.h => Include/IndustryStandard/PageTable.h} (60%)

-- 
Anthony PERARD



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