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MdeModulePkg/Variable: Parameterize VARIABLE_INFO_ENTRY buffer

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UpdateVariableInfo () currently accepts parameters regarding updates
to be made to a global variable of type VARIABLE_INFO_ENTRY. This
change passes the structure by pointer to UpdateVariableInfo ()
so structures other than the fixed global variable can be updated.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Michael Kubacki
2019-09-27 15:08:09 -07:00
parent f8ff4cca7c
commit 8d53adbee9
3 changed files with 39 additions and 34 deletions
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41
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableParsing.c
View File

@ -660,13 +660,14 @@ Done:
the transaction. Data is allocated by this routine, but never
freed.
@param[in] VariableName Name of the Variable to track.
@param[in] VendorGuid Guid of the Variable to track.
@param[in] Volatile TRUE if volatile FALSE if non-volatile.
@param[in] Read TRUE if GetVariable() was called.
@param[in] Write TRUE if SetVariable() was called.
@param[in] Delete TRUE if deleted via SetVariable().
@param[in] Cache TRUE for a cache hit.
@param[in] VariableName Name of the Variable to track.
@param[in] VendorGuid Guid of the Variable to track.
@param[in] Volatile TRUE if volatile FALSE if non-volatile.
@param[in] Read TRUE if GetVariable() was called.
@param[in] Write TRUE if SetVariable() was called.
@param[in] Delete TRUE if deleted via SetVariable().
@param[in] Cache TRUE for a cache hit.
@param[in,out] VariableInfo Pointer to a pointer of VARIABLE_INFO_ENTRY structures.
**/
VOID
@ -677,35 +678,38 @@ UpdateVariableInfo (
IN BOOLEAN Read,
IN BOOLEAN Write,
IN BOOLEAN Delete,
IN BOOLEAN Cache
IN BOOLEAN Cache,
IN OUT VARIABLE_INFO_ENTRY **VariableInfo
)
{
VARIABLE_INFO_ENTRY *Entry;
if (FeaturePcdGet (PcdVariableCollectStatistics)) {
if (VariableName == NULL || VendorGuid == NULL || VariableInfo == NULL) {
return;
}
if (AtRuntime ()) {
// Don't collect statistics at runtime.
return;
}
if (gVariableInfo == NULL) {
if (*VariableInfo == NULL) {
//
// On the first call allocate a entry and place a pointer to it in
// the EFI System Table.
//
gVariableInfo = AllocateZeroPool (sizeof (VARIABLE_INFO_ENTRY));
ASSERT (gVariableInfo != NULL);
*VariableInfo = AllocateZeroPool (sizeof (VARIABLE_INFO_ENTRY));
ASSERT (*VariableInfo != NULL);
CopyGuid (&gVariableInfo->VendorGuid, VendorGuid);
gVariableInfo->Name = AllocateZeroPool (StrSize (VariableName));
ASSERT (gVariableInfo->Name != NULL);
StrCpyS (gVariableInfo->Name, StrSize(VariableName)/sizeof(CHAR16), VariableName);
gVariableInfo->Volatile = Volatile;
CopyGuid (&(*VariableInfo)->VendorGuid, VendorGuid);
(*VariableInfo)->Name = AllocateZeroPool (StrSize (VariableName));
ASSERT ((*VariableInfo)->Name != NULL);
StrCpyS ((*VariableInfo)->Name, StrSize(VariableName)/sizeof(CHAR16), VariableName);
(*VariableInfo)->Volatile = Volatile;
}
for (Entry = gVariableInfo; Entry != NULL; Entry = Entry->Next) {
for (Entry = (*VariableInfo); Entry != NULL; Entry = Entry->Next) {
if (CompareGuid (VendorGuid, &Entry->VendorGuid)) {
if (StrCmp (VariableName, Entry->Name) == 0) {
if (Read) {
@ -739,7 +743,6 @@ UpdateVariableInfo (
StrCpyS (Entry->Next->Name, StrSize(VariableName)/sizeof(CHAR16), VariableName);
Entry->Next->Volatile = Volatile;
}
}
}
}