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ignore trailing spaces in dropped tables

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Signed-off-by: SergeySlice <sergey.slice@gmail.com>
This commit is contained in:
SergeySlice 2022-02-19 10:18:18 +03:00
parent 24f79413e0
commit a1432de73b
1 changed files with 39 additions and 3 deletions
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42
rEFIt_UEFI/Platform/AcpiPatcher.cpp
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@ -254,6 +254,27 @@ void AddDropTable(EFI_ACPI_DESCRIPTION_HEADER* Table, UINT32 Index)
GlobalConfig.ACPIDropTables = DropTable;
}
/*
* There is the case when OemTableId ended by space like "TableID ".
* We will not see the space but comparison will fail.
*/
UINT64 OemTableId_NoSpace(UINT64 origin)
{
UINT64 mask = 0xffULL << 56;
UINT64 space = 0x20ULL << 56;
do {
if ((mask & origin) == space) {
origin &= ~mask;
}
mask >>= 8;
space >>= 8;
} while (mask != 0 && ((mask & origin) == 0 || (mask & origin) == space));
return origin;
}
void GetAcpiTablesList()
{
DbgHeader("GetAcpiTablesList");
@ -262,6 +283,22 @@ void GetAcpiTablesList()
GlobalConfig.ACPIDropTables = NULL;
DBG("Get Acpi Tables List ");
/*
//for test
CHAR8 OTID[9];
OTID[8] = 0;
UINT64 TestTableId = 0x204449656c626154ULL; // <54 61 62 6c 65 49 44 20>
CopyMem(&OTID[0], &TestTableId, 8);
DBG("\n test id=0x%08llx as str=%s\n", TestTableId, OTID);
TestTableId = OemTableId_NoSpace(TestTableId);
DBG("after convert id=0x%08llx as str=%s\n", TestTableId, OTID);
result:
test id=0x204449656c626154 as str=TableID
after convert id=0x4449656c626154 as str=TableID
*/
if (Xsdt) {
UINT32 Count = XsdtTableCount();
UINT64* Ptr = XsdtEntryPtrFromIndex(0);
@ -293,7 +330,6 @@ void GetAcpiTablesList()
}
}
void DropTableFromRSDT(UINT32 Signature, UINT64 TableId, UINT32 Length)
{
if (!Rsdt || (0 == Signature && 0 == TableId)) {
@ -321,7 +357,7 @@ void DropTableFromRSDT(UINT32 Signature, UINT64 TableId, UINT32 Length)
CopyMem(&OTID[0], &Table->OemTableId, 8);
//DBG(" Found table: %s %s\n", sign, OTID);
if (!((Signature && Table->Signature == Signature) &&
(!TableId || Table->OemTableId == TableId) &&
(!TableId || OemTableId_NoSpace(Table->OemTableId) == TableId) &&
(!Length || Table->Length == Length))) {
continue;
}
@ -362,7 +398,7 @@ void DropTableFromXSDT(UINT32 Signature, UINT64 TableId, UINT32 Length)
CopyMem(&OTID[0], &Table->OemTableId, 8);
//DBG(" Found table: %s %s\n", sign, OTID);
if (!((Signature && Table->Signature == Signature) &&
(!TableId || Table->OemTableId == TableId) &&
(!TableId || OemTableId_NoSpace(Table->OemTableId) == TableId) &&
(!Length || Table->Length == Length))) {
continue;
}