OvmfPkg/Xen: export AcpiTable installation into AcpiPlatformLib

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>

3 files changed, 44 insertions, 261 deletions

diff --git a/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c b/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c
index e06bb25dfc..2dbc812953 100644
--- a/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c
+++ b/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c
@@ -7,10 +7,15 @@
 

 **/

 

-#include <Library/XenPlatformLib.h>           // XenDetected()

+#include <Library/AcpiPlatformLib.h> // InstallAcpiTablesFromMemory()

+#include <Library/DebugLib.h>        // DEBUG()

+#include <Library/XenPlatformLib.h>  // XenDetected()

 

 #include "AcpiPlatform.h"

 

+#define XEN_ACPI_PHYSICAL_ADDRESS  0x000EA020

+#define XEN_BIOS_PHYSICAL_END      0x000FFFFF

+

 /**

   Effective entrypoint of Acpi Platform driver.

 

@@ -28,10 +33,46 @@ InstallAcpiTables (
   IN   EFI_ACPI_TABLE_PROTOCOL  *AcpiTable

   )

 {

-  EFI_STATUS  Status;

+  EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER  *RsdpStructurePtr;

+  EFI_XEN_INFO                                  *XenInfo;

+  EFI_STATUS                                    Status;

 

   if (XenDetected ()) {

-    Status = InstallXenTables (AcpiTable);

+    //

+    // Detect the RSDP structure

+    //

+

+    //

+    // First look for PVH one

+    //

+    XenInfo = XenGetInfoHOB ();

+    ASSERT (XenInfo != NULL);

+    if (XenInfo->RsdpPvh != NULL) {

+      DEBUG ((

+        DEBUG_INFO,

+        "%a: Use ACPI RSDP table at 0x%p\n",

+        gEfiCallerBaseName,

+        XenInfo->RsdpPvh

+        ));

+      RsdpStructurePtr = XenInfo->RsdpPvh;

+    } else {

+      //

+      // Otherwise, look for the HVM one

+      //

+      Status = GetAcpiRsdpFromMemory (

+                 XEN_ACPI_PHYSICAL_ADDRESS,

+                 XEN_BIOS_PHYSICAL_END,

+                 &RsdpStructurePtr

+                 );

+      if (EFI_ERROR (Status)) {

+        return Status;

+      }

+    }

+

+    Status = InstallAcpiTablesFromRsdp (

+               AcpiTable,

+               RsdpStructurePtr

+               );

   } else {

     Status = EFI_UNSUPPORTED;

   }

diff --git a/OvmfPkg/XenAcpiPlatformDxe/Xen.c b/OvmfPkg/XenAcpiPlatformDxe/Xen.c
deleted file mode 100644
index a3812cb8d6..0000000000
--- a/OvmfPkg/XenAcpiPlatformDxe/Xen.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/** @file

-  OVMF ACPI Xen support

-

-  Copyright (C) 2021, Red Hat, Inc.

-  Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>

-  Copyright (c) 2012, Bei Guan <gbtju85@gmail.com>

-

-  SPDX-License-Identifier: BSD-2-Clause-Patent

-

-**/

-

-#include <Library/AcpiPlatformLib.h>

-#include <Library/BaseLib.h>        // CpuDeadLoop()

-#include <Library/DebugLib.h>       // DEBUG()

-#include <Library/XenPlatformLib.h> // XenGetInfoHOB()

-

-#include "AcpiPlatform.h"

-

-#define XEN_ACPI_PHYSICAL_ADDRESS  0x000EA020

-#define XEN_BIOS_PHYSICAL_END      0x000FFFFF

-

-EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER  *XenAcpiRsdpStructurePtr = NULL;

-

-/**

-  Get Xen Acpi tables from the RSDP structure. And installs Xen ACPI tables

-  into the RSDT/XSDT using InstallAcpiTable. Some signature of the installed

-  ACPI tables are: FACP, APIC, HPET, WAET, SSDT, FACS, DSDT.

-

-  @param  AcpiProtocol           Protocol instance pointer.

-

-  @return EFI_SUCCESS            The table was successfully inserted.

-  @return EFI_INVALID_PARAMETER  Either AcpiTableBuffer is NULL, TableHandle is

-                                 NULL, or AcpiTableBufferSize and the size

-                                 field embedded in the ACPI table pointed to

-                                 by AcpiTableBuffer are not in sync.

-  @return EFI_OUT_OF_RESOURCES   Insufficient resources exist to complete the request.

-

-**/

-EFI_STATUS

-EFIAPI

-InstallXenTables (

-  IN   EFI_ACPI_TABLE_PROTOCOL  *AcpiProtocol

-  )

-{

-  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;

-  EFI_XEN_INFO                                  *XenInfo;

-

-  Fadt2Table           = NULL;

-  Fadt1Table           = NULL;

-  Facs2Table           = NULL;

-  Facs1Table           = NULL;

-  DsdtTable            = NULL;

-  TableHandle          = 0;

-  NumberOfTableEntries = 0;

-

-  //

-  // Detect the RSDP structure

-  //

-

-  //

-  // First look for PVH one

-  //

-  XenInfo = XenGetInfoHOB ();

-  ASSERT (XenInfo != NULL);

-  if (XenInfo->RsdpPvh != NULL) {

-    DEBUG ((

-      DEBUG_INFO,

-      "%a: Use ACPI RSDP table at 0x%p\n",

-      gEfiCallerBaseName,

-      XenInfo->RsdpPvh

-      ));

-    XenAcpiRsdpStructurePtr = XenInfo->RsdpPvh;

-  } else {

-    //

-    // Otherwise, look for the HVM one

-    //

-    Status = GetAcpiRsdpFromMemory (

-               XEN_ACPI_PHYSICAL_ADDRESS,

-               XEN_BIOS_PHYSICAL_END,

-               &XenAcpiRsdpStructurePtr

-               );

-    if (EFI_ERROR (Status)) {

-      return Status;

-    }

-  }

-

-  //

-  // If XSDT table is find, just install its tables.

-  // Otherwise, try to find and install the RSDT tables.

-  //

-  if (XenAcpiRsdpStructurePtr->XsdtAddress) {

-    //

-    // Retrieve the addresses of XSDT and

-    // calculate the number of its table entries.

-    //

-    Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)

-           XenAcpiRsdpStructurePtr->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 (XenAcpiRsdpStructurePtr->RsdtAddress) {

-    //

-    // Retrieve the addresses of RSDT and

-    // calculate the number of its table entries.

-    //

-    Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)

-           XenAcpiRsdpStructurePtr->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;

-}

diff --git a/OvmfPkg/XenAcpiPlatformDxe/XenAcpiPlatformDxe.inf b/OvmfPkg/XenAcpiPlatformDxe/XenAcpiPlatformDxe.inf
index 65374569dd..be175d290f 100644
--- a/OvmfPkg/XenAcpiPlatformDxe/XenAcpiPlatformDxe.inf
+++ b/OvmfPkg/XenAcpiPlatformDxe/XenAcpiPlatformDxe.inf
@@ -25,7 +25,6 @@
   AcpiPlatform.c

   AcpiPlatform.h

   EntryPoint.c

-  Xen.c

 

 [Packages]

   MdePkg/MdePkg.dec