OvmfPkg: Move XenRealTimeClockLib from ArmVirtPkg

Move XenRealTimeClockLib from ArmVirtPkg to OvmfPkg so it can be used
from the OvmfPkg by the following patch, "OvmfPkg/OvmfXen: use
RealTimeClockRuntimeDxe from EmbeddedPkg"

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190813113119.14804-35-anthony.perard@citrix.com>

3 files changed, 1 insertions, 224 deletions

diff --git a/ArmVirtPkg/ArmVirtXen.dsc b/ArmVirtPkg/ArmVirtXen.dsc
index 79304ee61d..1b42a9a813 100644
--- a/ArmVirtPkg/ArmVirtXen.dsc
+++ b/ArmVirtPkg/ArmVirtXen.dsc
@@ -27,7 +27,7 @@
 

 [LibraryClasses]

   SerialPortLib|OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.inf

-  RealTimeClockLib|ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.inf

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

   XenHypercallLib|OvmfPkg/Library/XenHypercallLib/XenHypercallLib.inf

 

   ArmGenericTimerCounterLib|ArmVirtPkg/Library/XenArmGenericTimerVirtCounterLib/XenArmGenericTimerVirtCounterLib.inf

diff --git a/ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.c b/ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.c
deleted file mode 100644
index e113bc89bd..0000000000
--- a/ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/** @file

-  Implement EFI RealTimeClock runtime services via Xen shared info page

-

-  Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>

-

-  SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#include <Uefi.h>

-#include <PiDxe.h>

-#include <Library/BaseLib.h>

-#include <Library/DebugLib.h>

-

-/**

-  Converts Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC) to EFI_TIME

- **/

-STATIC

-VOID

-EpochToEfiTime (

-  IN  UINTN     EpochSeconds,

-  OUT EFI_TIME  *Time

-  )

-{

-  UINTN         a;

-  UINTN         b;

-  UINTN         c;

-  UINTN         d;

-  UINTN         g;

-  UINTN         j;

-  UINTN         m;

-  UINTN         y;

-  UINTN         da;

-  UINTN         db;

-  UINTN         dc;

-  UINTN         dg;

-  UINTN         hh;

-  UINTN         mm;

-  UINTN         ss;

-  UINTN         J;

-

-  J  = (EpochSeconds / 86400) + 2440588;

-  j  = J + 32044;

-  g  = j / 146097;

-  dg = j % 146097;

-  c  = (((dg / 36524) + 1) * 3) / 4;

-  dc = dg - (c * 36524);

-  b  = dc / 1461;

-  db = dc % 1461;

-  a  = (((db / 365) + 1) * 3) / 4;

-  da = db - (a * 365);

-  y  = (g * 400) + (c * 100) + (b * 4) + a;

-  m  = (((da * 5) + 308) / 153) - 2;

-  d  = da - (((m + 4) * 153) / 5) + 122;

-

-  Time->Year  = y - 4800 + ((m + 2) / 12);

-  Time->Month = ((m + 2) % 12) + 1;

-  Time->Day   = d + 1;

-

-  ss = EpochSeconds % 60;

-  a  = (EpochSeconds - ss) / 60;

-  mm = a % 60;

-  b = (a - mm) / 60;

-  hh = b % 24;

-

-  Time->Hour        = hh;

-  Time->Minute      = mm;

-  Time->Second      = ss;

-  Time->Nanosecond  = 0;

-

-}

-

-/**

-  Returns the current time and date information, and the time-keeping capabilities

-  of the hardware platform.

-

-  @param  Time                  A pointer to storage to receive a snapshot of the current time.

-  @param  Capabilities          An optional pointer to a buffer to receive the real time clock

-                                device's capabilities.

-

-  @retval EFI_SUCCESS           The operation completed successfully.

-  @retval EFI_INVALID_PARAMETER Time is NULL.

-  @retval EFI_DEVICE_ERROR      The time could not be retrieved due to hardware error.

-

-**/

-EFI_STATUS

-EFIAPI

-LibGetTime (

-  OUT EFI_TIME                *Time,

-  OUT  EFI_TIME_CAPABILITIES  *Capabilities

-  )

-{

-  ASSERT (Time != NULL);

-

-  //

-  // For now, there is nothing that we can do besides returning a bogus time,

-  // as Xen's timekeeping uses a shared info page which cannot be shared

-  // between UEFI and the OS

-  //

-  EpochToEfiTime(1421770011, Time);

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Sets the current local time and date information.

-

-  @param  Time                  A pointer to the current time.

-

-  @retval EFI_SUCCESS           The operation completed successfully.

-  @retval EFI_INVALID_PARAMETER A time field is out of range.

-  @retval EFI_DEVICE_ERROR      The time could not be set due due to hardware error.

-

-**/

-EFI_STATUS

-EFIAPI

-LibSetTime (

-  IN EFI_TIME                *Time

-  )

-{

-  return EFI_DEVICE_ERROR;

-}

-

-

-/**

-  Returns the current wakeup alarm clock setting.

-

-  @param  Enabled               Indicates if the alarm is currently enabled or disabled.

-  @param  Pending               Indicates if the alarm signal is pending and requires acknowledgement.

-  @param  Time                  The current alarm setting.

-

-  @retval EFI_SUCCESS           The alarm settings were returned.

-  @retval EFI_INVALID_PARAMETER Any parameter is NULL.

-  @retval EFI_DEVICE_ERROR      The wakeup time could not be retrieved due to a hardware error.

-  @retval EFI_UNSUPPORTED       A wakeup timer is not supported on this platform.

-

-**/

-EFI_STATUS

-EFIAPI

-LibGetWakeupTime (

-  OUT BOOLEAN     *Enabled,

-  OUT BOOLEAN     *Pending,

-  OUT EFI_TIME    *Time

-  )

-{

-  return EFI_UNSUPPORTED;

-}

-

-/**

-  Sets the system wakeup alarm clock time.

-

-  @param  Enabled               Enable or disable the wakeup alarm.

-  @param  Time                  If Enable is TRUE, the time to set the wakeup alarm for.

-

-  @retval EFI_SUCCESS           If Enable is TRUE, then the wakeup alarm was enabled. If

-                                Enable is FALSE, then the wakeup alarm was disabled.

-  @retval EFI_INVALID_PARAMETER A time field is out of range.

-  @retval EFI_DEVICE_ERROR      The wakeup time could not be set due to a hardware error.

-  @retval EFI_UNSUPPORTED       A wakeup timer is not supported on this platform.

-

-**/

-EFI_STATUS

-EFIAPI

-LibSetWakeupTime (

-  IN BOOLEAN      Enabled,

-  OUT EFI_TIME    *Time

-  )

-{

-  return EFI_UNSUPPORTED;

-}

-

-/**

-  This is the declaration of an EFI image entry point. This can be the entry point to an application

-  written to this specification, an EFI boot service driver, or an EFI runtime driver.

-

-  @param  ImageHandle           Handle that identifies the loaded image.

-  @param  SystemTable           System Table for this image.

-

-  @retval EFI_SUCCESS           The operation completed successfully.

-

-**/

-EFI_STATUS

-EFIAPI

-LibRtcInitialize (

-  IN EFI_HANDLE                            ImageHandle,

-  IN EFI_SYSTEM_TABLE                      *SystemTable

-  )

-{

-  return EFI_SUCCESS;

-}

diff --git a/ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.inf b/ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.inf
deleted file mode 100644
index f4b269b214..0000000000
--- a/ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.inf
+++ /dev/null
@@ -1,33 +0,0 @@
-#/** @file

-#

-# Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>

-#

-#  SPDX-License-Identifier: BSD-2-Clause-Patent

-#

-#

-#**/

-

-[Defines]

-  INF_VERSION                    = 0x00010005

-  BASE_NAME                      = XenRealTimeClockLib

-  FILE_GUID                      = EC2557E8-7005-430B-9F6F-9BA109698248

-  MODULE_TYPE                    = BASE

-  VERSION_STRING                 = 1.0

-  LIBRARY_CLASS                  = RealTimeClockLib|DXE_CORE DXE_DRIVER UEFI_DRIVER DXE_RUNTIME_DRIVER UEFI_APPLICATION

-

-[Sources.common]

-  XenRealTimeClockLib.c

-

-[Packages]

-  MdePkg/MdePkg.dec

-  OvmfPkg/OvmfPkg.dec

-  EmbeddedPkg/EmbeddedPkg.dec

-

-[LibraryClasses]

-  UefiLib

-  DebugLib

-  DxeServicesTableLib

-  UefiRuntimeLib

-

-[Guids]

-  gEfiEventVirtualAddressChangeGuid