audk/UefiCpuPkg
Eric Dong 2da3e96cb7 UefiCpuPkg/MpInitLib: Remove StartCount and volatile definition.
The patch includes below changes:
(1) It removes "volatile" from RunningCount, because only the BSP modifies it.
(2) When we detect a timeout in CheckAllAPs(), and collect the list of failed CPUs, the size of the list is derived from the following difference, before the patch:
  StartCount - FinishedCount
where "StartCount" is set by the BSP at startup, and FinishedCount is incremented by the APs themselves.
Here the patch replaces this difference with
  StartCount - RunningCount
that is, the difference is no more calculated from the BSP's startup counter and the AP's shared finish counter, but from the RunningCount measurement that the BSP does itself, in CheckAllAPs().
(3) Finally, the patch changes the meaning of RunningCount. Before the patch, we have:
- StartCount: the number of APs the BSP stars up,
- RunningCount: the number of finished APs that the BSP collected
After the patch, StartCount is removed, and RunningCount is *redefined* as the following difference:
  OLD_StartCount - OLD_RunningCount
Giving the number of APs that the BSP started up but hasn't collected yet.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
2018-07-26 16:54:14 +08:00
..
Application/Cpuid UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00
CpuDxe UefiCpuPkg/CpuDxe: fix incorrect check of SMM mode 2018-07-20 10:34:11 +08:00
CpuFeatures UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00
CpuIo2Dxe UefiCpuPkg: Removing ipf which is no longer supported from edk2. 2018-06-29 16:19:52 +08:00
CpuIo2Smm UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00
CpuIoPei UefiCpuPkg: Removing ipf which is no longer supported from edk2. 2018-06-29 16:19:52 +08:00
CpuMpPei UefiCpuPkg/CpuMpPei: Correct BIST PPI logic. 2018-07-24 08:35:33 +08:00
CpuS3DataDxe UefiCpuPkg/CpuS3DataDxe: Consume the existing PcdCpuS3DataAddress 2017-03-22 10:11:25 +08:00
Include UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00
Library UefiCpuPkg/MpInitLib: Remove StartCount and volatile definition. 2018-07-26 16:54:14 +08:00
PiSmmCommunication UefiCpuPkg PiSmmCommunicationSmm: Deprecate SMM Communication ACPI Table 2017-07-27 14:08:09 +08:00
PiSmmCpuDxeSmm UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00
ResetVector UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00
SecCore UefiCpuPkg: Removing ipf which is no longer supported from edk2. 2018-06-29 16:19:52 +08:00
Universal/Acpi/S3Resume2Pei UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00
UefiCpuPkg.dec UefiCpuPkg: Update package version. 2018-01-22 19:23:56 +08:00
UefiCpuPkg.dsc UefiCpuPkg: Removing ipf which is no longer supported from edk2. 2018-06-29 16:19:52 +08:00
UefiCpuPkg.uni UefiCpuPkg/UefiCpuPkg.uni: Add missing string definition for new PCDs 2017-12-26 09:44:14 +08:00
UefiCpuPkgExtra.uni UefiCpuPkg: Clean up source files 2018-06-28 11:19:53 +08:00