Bret Barkelew a18a9bde36 MdeModulePkg/Variable/RuntimeDxe: Restore Variable Lock Protocol behavior ... https://bugzilla.tianocore.org/show_bug.cgi?id=3111 The VariableLock shim currently fails if called twice because the underlying Variable Policy engine returns an error if a policy is set on an existing variable. This breaks existing code which expect it to silently pass if a variable is locked multiple times (because it should "be locked"). Refactor the shim to confirm that the variable is indeed locked and then change the error to EFI_SUCCESS and generate a DEBUG_ERROR message so the duplicate lock can be reported in a debug log and removed. Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Cc: Liming Gao <gaoliming@byosoft.com.cn> Signed-off-by: Bret Barkelew <Bret.Barkelew@microsoft.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>		2020-12-15 06:26:34 +00:00
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Pei	MdeModulePkg VariablePei: Return GetVariable() attr if EFI_BUFFER_TOO_SMALL	2020-04-07 13:51:24 +00:00
RuntimeDxe	MdeModulePkg/Variable/RuntimeDxe: Restore Variable Lock Protocol behavior	2020-12-15 06:26:34 +00:00