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* [PATCH v2 0/7] OvmfXen: Set PcdFSBClock at runtime
@ 2021-03-25 15:47 Anthony PERARD
  2021-03-25 15:47 ` [PATCH v2 1/7] OvmfPkg/XenResetVector: Silent a warning from nasm Anthony PERARD
                   ` (8 more replies)
  0 siblings, 9 replies; 17+ messages in thread
From: Anthony PERARD @ 2021-03-25 15:47 UTC (permalink / raw)
  To: devel
  Cc: xen-devel, Jordan Justen, Anthony PERARD, Ard Biesheuvel,
	Laszlo Ersek, Julien Grall

Patch series available in this git branch:
git://xenbits.xen.org/people/aperard/ovmf.git br.apic-timer-freq-v2

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@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


^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2021-04-07  9:32 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-25 15:47 [PATCH v2 0/7] OvmfXen: Set PcdFSBClock at runtime Anthony PERARD
2021-03-25 15:47 ` [PATCH v2 1/7] OvmfPkg/XenResetVector: Silent a warning from nasm Anthony PERARD
2021-03-25 15:47 ` [PATCH v2 2/7] MdePkg: Allow PcdFSBClock to by Dynamic Anthony PERARD
2021-03-25 15:47 ` [PATCH v2 3/7] OvmfPkg/IndustryStandard/Xen: Apply EDK2 coding style to XEN_VCPU_TIME_INFO Anthony PERARD
2021-03-25 15:47 ` [PATCH v2 4/7] OvmfPkg/IndustryStandard: Introduce PageTable.h Anthony PERARD
2021-03-26 14:16   ` Tom Lendacky
2021-04-07  8:01     ` [edk2-devel] " Laszlo Ersek
2021-04-07  8:02   ` Laszlo Ersek
2021-04-07  8:04   ` Laszlo Ersek
2021-03-25 15:47 ` [PATCH v2 5/7] OvmfPkg/XenPlatformPei: Map extra physical address Anthony PERARD
2021-04-07  8:06   ` [edk2-devel] " Laszlo Ersek
2021-03-25 15:47 ` [PATCH v2 6/7] OvmfPkg/XenPlatformPei: Calibrate APIC timer frequency Anthony PERARD
2021-04-07  8:28   ` [edk2-devel] " Laszlo Ersek
2021-03-25 15:47 ` [PATCH v2 7/7] OvmfPkg/OvmfXen: Set PcdFSBClock Anthony PERARD
2021-04-07  9:25   ` [edk2-devel] " Laszlo Ersek
2021-03-25 18:22 ` [PATCH v2 0/7] OvmfXen: Set PcdFSBClock at runtime Laszlo Ersek
2021-04-07  9:32 ` [edk2-devel] " Laszlo Ersek

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