OvmfPkg: BDS: remove historic (now defunct) boot mode hack

When PI can distinguish the "full config" boot mode from "assume no
changes", then the following BDS logic is correct:

  if BootMode == BOOT_WITH_FULL_CONFIGURATION:
    //
    // connect all devices
    // create & append each default boot option that's missing
    //
    BdsLibConnectAll
    BdsLibEnumerateAllBootOption
  else if BootMode == BOOT_ASSUMING_NO_CONFIGURATION_CHANGES:
    //
    // just stick with current BootOrder and the Boot#### variables
    // referenced by it
    //

In theory, the first branch is intended to run infrequently, and the
"assume no changes" branch should run most of the time.

However, some platforms can't tell these two boot modes apart. The
following substitute had been introduced:

  //
  // Technically, always assume "full config", but the BootMode HOB is
  // actually meaningless wrt. to "full config" or "assume no changes".
  //
  ASSERT (BootMode == BOOT_WITH_FULL_CONFIGURATION);

  //
  // Key off the existence of BootOrder. Try to prepare an in-memory list
  // of boot options, based on BootOrder and the referenced Boot####
  // variables.
  //
  Status = BdsLibBuildOptionFromVar()

  //
  // If that succeeded, we'll treat it as "assume no changes".  If it
  // failed (*only* if it failed), we'll build default boot options,
  // calling it "full config":
  //
  if EFI_ERROR(Status):
    BdsLibConnectAll()
    BdsLibEnumerateAllBootOption(BootOptionList)

What we have now in OVMF is a mixture of the hack, and the behavior that's
theoretically correct for "full config":
- We assert "full config" -- this is OK.
- We call "connect all" and "enumerate all" deliberately -- this is OK
  too. It matches "full config" which we assert.
- However, we also have the hack in place, which had been meant as an
  alternative.

In order to clean this up, we either need to restore the hack to its
original form (ie. comment out the unconditional calls again), or we ought
to remove the hack altogether.

The unconditional "connect all" + "enumerate all" calls are the correct
approach for OVMF, because we want, in fact, to start with "full config".
The QEMU boot order specification and the set of emulated devices might
change "out of band", which excludes "assume no changes".

In other words, removing the hack corresponds to the "real production"
case that the comment hints at.

Because SetBootOrderFromQemu() may change the BootOrder NvVar, we must
preserve the BdsLibBuildOptionFromVar() function call, in order to
refresh the in-memory list with the new boot priorities.
(The last step of BdsLibEnumerateAllBootOption() is such a call too.)

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15326 6f19259b-4bc3-4df7-8a09-765794883524
OvmfPkg: BDS: QemuBootOrder: don't leak unreferenced boot options

The Boot#### variables that have become unreferenced in the new BootOrder
variable won't ever be automatically reused for booting. They are
"unreachable" resources that take up room in the variable store. Make an
effort to remove them.

This should plug the leak which, given sufficient reboots, exhausts the
variable store with stale Boot#### variables and renders the VM
unbootable.

Reported-by: Michael Chang <mchang@suse.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15327 6f19259b-4bc3-4df7-8a09-765794883524
Remove ASSERT when failed to Get/Set “AttemptOrder” and “ClientId” variable.
Removes RT attribute for “AttemptOrder” variable.
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Dong, Guo <guo.dong@intel.com>
Reviewed-by: Yao, Jiewen <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15328 6f19259b-4bc3-4df7-8a09-765794883524
Fix the return status when physical presence variable and MemoryOverwriteRequestControl variable are corrupt.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dong Guo <guo.dong@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15329 6f19259b-4bc3-4df7-8a09-765794883524
Remove ASSERT check for SetVariable in FirmwarePerformanceDataTableDxe

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gao, Liming <liming.gao@intel.com>
Reviewed-by: Yao, Jiewen <jiewen.yao@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15330 6f19259b-4bc3-4df7-8a09-765794883524
Add comments to describe PlatformDriOverrideDxe is used for test purpose. 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gao, Liming <liming.gao@intel.com>
Reviewed-by: Yao, Jiewen <jiewen.yao@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15331 6f19259b-4bc3-4df7-8a09-765794883524
Remove unnecessary dependency in variable driver.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dong Guo <guo.dong@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Gao, Liming <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15332 6f19259b-4bc3-4df7-8a09-765794883524
Do not reset system when the MemoryTypeInformation variable cannot be written.
Remove the RT attribute for the MemoryTypeInformation variable because it’s not necessary.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15333 6f19259b-4bc3-4df7-8a09-765794883524
Add comments for PcdHideTpmSupport.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dong Guo <guo.dong@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15334 6f19259b-4bc3-4df7-8a09-765794883524
ShellPkg: Move a function into shared location

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <Jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15335 6f19259b-4bc3-4df7-8a09-765794883524
Remove ASSERT when SetVariable for ConOutDev/ConInDev/ErrOutDev variables failed.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Elvin Li <elvin.li@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15336 6f19259b-4bc3-4df7-8a09-765794883524
IntelFrameworkModulePkg AcpiS3SaveDxe: Remove ASSERT, add lock and remove RT for AcpiGlobalVariable variable.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15337 6f19259b-4bc3-4df7-8a09-765794883524
Did proper error handling when SetVariable failed, and put RTC write operation at the behind of SetVariable, if SetVariable failed, RTC content could not be changed.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Elvin Li <elvin.li@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15338 6f19259b-4bc3-4df7-8a09-765794883524
Fix the return value bug when updating public key database variable failure.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dong Guo <guo.dong@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15339 6f19259b-4bc3-4df7-8a09-765794883524
MdeModulePkg/SecurityPkg Variable: Return error status to avoid inconsistency between PlatformLang and Lang.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15340 6f19259b-4bc3-4df7-8a09-765794883524
Use PXE_OPFLAGS_STATION_ADDRESS_WRITE when setting new MAC address for the NIC in SNP driver.
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Dong, Guo <guo.dong@intel.com>
Reviewed-by: Jin, Eric <eric.jin@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15350 6f19259b-4bc3-4df7-8a09-765794883524
Removes MacString Rt attribute in Ip4Config/Mnp driver.
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Dong, Guo <guo.dong@intel.com>
Reviewed-by: Yao, Jiewen <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15351 6f19259b-4bc3-4df7-8a09-765794883524
ShellPkg: Allow for LoadedImageProtocol information to be verbosely exported for commands like "dh"

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <Jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15352 6f19259b-4bc3-4df7-8a09-765794883524
ShellPkg: Remove unused function

This function was not exposed outside the library and is not used internally.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <Jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15353 6f19259b-4bc3-4df7-8a09-765794883524
ShellPkg: remove redudant code.  call existing API.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <Jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15354 6f19259b-4bc3-4df7-8a09-765794883524