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OvmfPkg/Xen: export AcpiTable installation into AcpiPlatformLib

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This makes the function reuseable by bhyve.

Signed-off-by: Corvin Köhne <corvink@FreeBSD.org>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Corvin Köhne
2023-06-06 11:21:38 +02:00
committed by mergify[bot]
parent f211292711
commit 1288c5415c
5 changed files with 254 additions and 261 deletions
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185
OvmfPkg/Library/AcpiPlatformLib/DxeAcpiPlatformLib.c
View File

@@ -65,3 +65,188 @@ GetAcpiRsdpFromMemory (
return EFI_NOT_FOUND;
}
EFI_STATUS
EFIAPI
InstallAcpiTablesFromRsdp (
IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,
IN EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp
)
{
EFI_STATUS Status;
UINTN TableHandle;
EFI_ACPI_DESCRIPTION_HEADER *Rsdt;
EFI_ACPI_DESCRIPTION_HEADER *Xsdt;
VOID *CurrentTableEntry;
UINTN CurrentTablePointer;
EFI_ACPI_DESCRIPTION_HEADER *CurrentTable;
UINTN Index;
UINTN NumberOfTableEntries;
EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt2Table;
EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt1Table;
EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs2Table;
EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *Facs1Table;
EFI_ACPI_DESCRIPTION_HEADER *DsdtTable;
Fadt2Table = NULL;
Fadt1Table = NULL;
Facs2Table = NULL;
Facs1Table = NULL;
DsdtTable = NULL;
TableHandle = 0;
NumberOfTableEntries = 0;
//
// If XSDT table is find, just install its tables.
// Otherwise, try to find and install the RSDT tables.
//
if (Rsdp->XsdtAddress) {
//
// Retrieve the addresses of XSDT and
// calculate the number of its table entries.
//
Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->XsdtAddress;
NumberOfTableEntries =
(Xsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / sizeof (UINT64);
//
// Install ACPI tables found in XSDT.
//
for (Index = 0; Index < NumberOfTableEntries; Index++) {
//
// Get the table entry from XSDT
//
CurrentTableEntry =
(VOID *)((UINT8 *)Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
Index * sizeof (UINT64));
CurrentTablePointer = (UINTN)*(UINT64 *)CurrentTableEntry;
CurrentTable = (EFI_ACPI_DESCRIPTION_HEADER *)CurrentTablePointer;
//
// Install the XSDT tables
//
Status = AcpiProtocol->InstallAcpiTable (
AcpiProtocol,
CurrentTable,
CurrentTable->Length,
&TableHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Get the FACS and DSDT table address from the table FADT
//
if (!AsciiStrnCmp ((CHAR8 *)&CurrentTable->Signature, "FACP", 4)) {
Fadt2Table = (EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)
CurrentTablePointer;
Facs2Table = (EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)(UINTN)
Fadt2Table->FirmwareCtrl;
DsdtTable = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Fadt2Table->Dsdt;
}
}
} else if (Rsdp->RsdtAddress) {
//
// Retrieve the addresses of RSDT and
// calculate the number of its table entries.
//
Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->RsdtAddress;
NumberOfTableEntries =
(Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) / sizeof (UINT32);
//
// Install ACPI tables found in XSDT.
//
for (Index = 0; Index < NumberOfTableEntries; Index++) {
//
// Get the table entry from RSDT
//
CurrentTableEntry =
(UINT32 *)((UINT8 *)Rsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
Index * sizeof (UINT32));
CurrentTablePointer = *(UINT32 *)CurrentTableEntry;
CurrentTable = (EFI_ACPI_DESCRIPTION_HEADER *)CurrentTablePointer;
//
// Install the RSDT tables
//
Status = AcpiProtocol->InstallAcpiTable (
AcpiProtocol,
CurrentTable,
CurrentTable->Length,
&TableHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Get the FACS and DSDT table address from the table FADT
//
if (!AsciiStrnCmp ((CHAR8 *)&CurrentTable->Signature, "FACP", 4)) {
Fadt1Table = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *)(UINTN)
CurrentTablePointer;
Facs1Table = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *)(UINTN)
Fadt1Table->FirmwareCtrl;
DsdtTable = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Fadt1Table->Dsdt;
}
}
}
//
// Install the FACS table.
//
if (Fadt2Table) {
//
// FACS 2.0
//
Status = AcpiProtocol->InstallAcpiTable (
AcpiProtocol,
Facs2Table,
Facs2Table->Length,
&TableHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
} else if (Fadt1Table) {
//
// FACS 1.0
//
Status = AcpiProtocol->InstallAcpiTable (
AcpiProtocol,
Facs1Table,
Facs1Table->Length,
&TableHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
}
//
// Install DSDT table. If we reached this point without finding the DSDT,
// then we're out of sync with the hypervisor, and cannot continue.
//
if (DsdtTable == NULL) {
DEBUG ((DEBUG_ERROR, "%a: no DSDT found\n", __func__));
ASSERT (FALSE);
CpuDeadLoop ();
}
Status = AcpiProtocol->InstallAcpiTable (
AcpiProtocol,
DsdtTable,
DsdtTable->Length,
&TableHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
return EFI_SUCCESS;
}