UefiCpuPkg/CpuDxe: Add no-op InitializeMpSupport

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
UefiCpuPkg/CpuDxe: Add ApEntryPointInC

This is the function the AP assembly code will expect to call after
getting a lock and setting up the stack.

Only one AP will enter this routine at a time.

If ApEntryPointInC exits, then the assembly code will loop around to
grab the lock, setup the stack, and call ApEntryPointInC again.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
UefiCpuPkg/CpuDxe: Add stackless assembly AP entry points

The AP startup code simply jumps into this code with the CpuDxe driver
without setting up a stack for the processor.

Therefore, this code must setup the stack before calling into C code.

This is the basic flow:
* AP enters CpuDxe driver code (AsmApEntryPoint) without stack
  - AP grabs a lock
  - AP sets up stack
  - AP calls CpuMp.c:ApEntryPointInC
  - If ApEntryPointInC returns, the lock is freed, and another AP may
    run
  - The AP C code may call AsmApDoneWithCommonStack to indicate that
    the AP is no longer using the stack, and another may therefore
    proceed to use the stack and then call ApEntryPointInC

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
UefiCpuPkg/CpuDxe: Move GDT structures into CpuGdt.h

We'll want to use the structures for AP startup.

Note: It seems previously we were not using '#pragma pack ()' in
      CpuGdt.c.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
UefiCpuPkg/CpuDxe: Add StartApsStackless routine

This routine starts the APs and directs them to run the specified
code.

The specified code is entered without a stack being available.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
UefiCpuPkg/CpuDxe: introduce two PCD value

introduce PCD value: PcdCpuMaxLogicalProcessorNumber and PcdCpuApStackSize,
used for initialize APs stacks.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: Switch Ap Stack to NewStack

All APs use the same common stack to initialization. after
initialization, APs should switch to the stack of its own.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: introduce EFI_MP_SERVICES_PROTOCOL

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: introduce MP_SYSTEM_DATA for Mp Service Protocol

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: implement Mp Protocol: WhoAmI()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: implement Mp Protocol:GetNumberOfProcessors()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: implement Mp Services:GetProcessorInfo()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: implement Mp Protocol:EnableDisableAP()

Due to the implementation of  AcquireSpinLock() is not MP safe,
so we should use AcquireSpinLockOrFail directly instead.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: implement Mp Protocol:StartupThisAP()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: implement Mp Services:StartupAllAPs()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: implement Mp Services:SwitchBSP()

by now, SwitchBSP() always return UNSUPPORTED

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/CpuDxe: Ap do loop routine to execute procedure

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/MpService: move settimer out to InitMpSystemData

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/MpService: Simply Lock usage

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
UefiCpuPkg/MpService: avoid next timer getting into CheckAllAPsStatus()

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>