[PATCH 0/5] Add Cloud Hypervisor support for x86

[PATCH 0/5] Add Cloud Hypervisor support for x86

[sebastien.boeuf]

From: Sebastien Boeuf <sebastien.boeuf@intel.com>

This series aims at adding the support for the Cloud Hypervisor platform
to the OVMF firmware for x86 architecture.

The goal is to allow the same binary to be used either by QEMU or Cloud
Hypervisor, using the Cloud Hypervisor way as a fallback if the fw_cfg
mechanism is not present.

Sebastien Boeuf (5):
  OvmfPkg: Handle Cloud Hypervisor host bridge
  OvmfPkg: Create global entry point for SMBIOS parsing
  OvmfPkg: Retrieve SMBIOS from Cloud Hypervisor
  OvmfPkg: Generalize AcpiPlatformDxe
  OvmfPkg: Install ACPI tables for Cloud Hypervisor

 ArmVirtPkg/ArmVirtQemu.dsc                    |   2 +-
 ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc          |   2 +-
 ArmVirtPkg/ArmVirtQemuKernel.dsc              |   2 +-
 ...QemuFwCfgAcpiPlatform.c => AcpiPlatform.c} |   8 +-
 OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h        |   6 +
 ...cpiPlatformDxe.inf => AcpiPlatformDxe.inf} |   5 +-
 OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c         | 117 ++++++++++++++++++
 OvmfPkg/AmdSev/AmdSevX64.dsc                  |   2 +-
 OvmfPkg/AmdSev/AmdSevX64.fdf                  |   2 +-
 OvmfPkg/Csm/CsmSupportLib/LegacyInterrupt.c   |   1 +
 OvmfPkg/Csm/CsmSupportLib/LegacyRegion.c      |   1 +
 OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h      |   1 +
 OvmfPkg/Include/IndustryStandard/CloudHv.h    |  45 +++++++
 OvmfPkg/Include/OvmfPlatforms.h               |   1 +
 .../Library/AcpiTimerLib/BaseAcpiTimerLib.c   |   3 +
 .../AcpiTimerLib/BaseRomAcpiTimerLib.c        |   4 +
 .../Library/AcpiTimerLib/DxeAcpiTimerLib.c    |   3 +
 .../PlatformBootManagerLib/BdsPlatform.c      |   1 +
 .../ResetSystemLib/BaseResetShutdown.c        |   3 +
 .../Library/ResetSystemLib/DxeResetShutdown.c |  11 +-
 OvmfPkg/Microvm/MicrovmX64.dsc                |   2 +-
 OvmfPkg/Microvm/MicrovmX64.fdf                |   2 +-
 OvmfPkg/OvmfPkgIa32.dsc                       |   2 +-
 OvmfPkg/OvmfPkgIa32.fdf                       |   2 +-
 OvmfPkg/OvmfPkgIa32X64.dsc                    |   2 +-
 OvmfPkg/OvmfPkgIa32X64.fdf                    |   2 +-
 OvmfPkg/OvmfPkgX64.dsc                        |   2 +-
 OvmfPkg/OvmfPkgX64.fdf                        |   2 +-
 OvmfPkg/PlatformPei/MemDetect.c               |  63 +++++-----
 OvmfPkg/PlatformPei/Platform.c                |  11 +-
 OvmfPkg/SmbiosPlatformDxe/CloudHv.c           |  32 +++++
 OvmfPkg/SmbiosPlatformDxe/EntryPoint.c        |  66 ++++++++++
 OvmfPkg/SmbiosPlatformDxe/Qemu.c              |  35 ------
 .../SmbiosPlatformDxe/SmbiosPlatformDxe.inf   |   2 +
 34 files changed, 360 insertions(+), 85 deletions(-)
 rename OvmfPkg/AcpiPlatformDxe/{QemuFwCfgAcpiPlatform.c => AcpiPlatform.c} (73%)
 rename OvmfPkg/AcpiPlatformDxe/{QemuFwCfgAcpiPlatformDxe.inf => AcpiPlatformDxe.inf} (90%)
 create mode 100644 OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c
 create mode 100644 OvmfPkg/Include/IndustryStandard/CloudHv.h
 create mode 100644 OvmfPkg/SmbiosPlatformDxe/CloudHv.c
 create mode 100644 OvmfPkg/SmbiosPlatformDxe/EntryPoint.c

-- 
2.30.2

---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris, 
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

[PATCH 1/5] OvmfPkg: Handle Cloud Hypervisor host bridge

[sebastien.boeuf]

From: Sebastien Boeuf <sebastien.boeuf@intel.com>

Handle things differently when the detected host bridge matches the
Cloud Hypervisor PCI host bridge identifier.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
 OvmfPkg/Csm/CsmSupportLib/LegacyInterrupt.c   |  1 +
 OvmfPkg/Csm/CsmSupportLib/LegacyRegion.c      |  1 +
 OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h      |  1 +
 OvmfPkg/Include/IndustryStandard/CloudHv.h    | 35 +++++++++++
 OvmfPkg/Include/OvmfPlatforms.h               |  1 +
 .../Library/AcpiTimerLib/BaseAcpiTimerLib.c   |  3 +
 .../AcpiTimerLib/BaseRomAcpiTimerLib.c        |  4 ++
 .../Library/AcpiTimerLib/DxeAcpiTimerLib.c    |  3 +
 .../PlatformBootManagerLib/BdsPlatform.c      |  1 +
 .../ResetSystemLib/BaseResetShutdown.c        |  3 +
 .../Library/ResetSystemLib/DxeResetShutdown.c | 11 +++-
 OvmfPkg/PlatformPei/MemDetect.c               | 63 ++++++++++---------
 OvmfPkg/PlatformPei/Platform.c                | 11 +++-
 13 files changed, 105 insertions(+), 33 deletions(-)
 create mode 100644 OvmfPkg/Include/IndustryStandard/CloudHv.h

diff --git a/OvmfPkg/Csm/CsmSupportLib/LegacyInterrupt.c b/OvmfPkg/Csm/CsmSupportLib/LegacyInterrupt.c
index 97ca21945f..50c9322911 100644
--- a/OvmfPkg/Csm/CsmSupportLib/LegacyInterrupt.c
+++ b/OvmfPkg/Csm/CsmSupportLib/LegacyInterrupt.c
@@ -189,6 +189,7 @@ LegacyInterruptInstall (
       mLegacyInterruptDevice = LEGACY_INT_DEV_PIIX4;
       break;
     case INTEL_Q35_MCH_DEVICE_ID:
+    case CLOUDHV_DEVICE_ID: // Cloud Hypervisor host bridge
       mLegacyInterruptDevice = LEGACY_INT_DEV_Q35;
       break;
     default:
diff --git a/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.c b/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.c
index fe9ae27c9d..9d6d6faf48 100644
--- a/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.c
+++ b/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.c
@@ -474,6 +474,7 @@ LegacyRegionInit (
     mRegisterValues = mRegisterValues440;
     break;
   case INTEL_Q35_MCH_DEVICE_ID:
+  case CLOUDHV_DEVICE_ID: // Cloud Hypervisor host bridge
     mRegisterValues = mRegisterValuesQ35;
     break;
   default:
diff --git a/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h b/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h
index e18cb97949..71df8f5fb2 100644
--- a/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h
+++ b/OvmfPkg/Csm/CsmSupportLib/LegacyRegion.h
@@ -17,6 +17,7 @@
 #include <IndustryStandard/Pci.h>
 #include <IndustryStandard/Q35MchIch9.h>
 #include <IndustryStandard/I440FxPiix4.h>
+#include <IndustryStandard/CloudHv.h>
 
 #include <Library/PciLib.h>
 #include <Library/PcdLib.h>
diff --git a/OvmfPkg/Include/IndustryStandard/CloudHv.h b/OvmfPkg/Include/IndustryStandard/CloudHv.h
new file mode 100644
index 0000000000..6ab18ad50d
--- /dev/null
+++ b/OvmfPkg/Include/IndustryStandard/CloudHv.h
@@ -0,0 +1,35 @@
+/** @file
+  Various defines related to Cloud Hypervisor
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#ifndef __CLOUDHV_H__
+#define __CLOUDHV_H__
+
+//
+// Host Bridge Device ID
+//
+#define CLOUDHV_DEVICE_ID 0x0d57
+
+//
+// ACPI timer address
+//
+#define CLOUDHV_ACPI_TIMER_IO_ADDRESS 0xb008
+
+//
+// ACPI shutdown device address
+//
+#define CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS 0x03c0
+
+//
+// 32-bit MMIO memory hole base address
+//
+#define CLOUDHV_MMIO_HOLE_ADDRESS 0xc0000000
+
+//
+// 32-bit MMIO memory hole size
+//
+#define CLOUDHV_MMIO_HOLE_SIZE 0x38000000
+
+#endif // __CLOUDHV_H__
diff --git a/OvmfPkg/Include/OvmfPlatforms.h b/OvmfPkg/Include/OvmfPlatforms.h
index 3b85593b70..ad0b0d2803 100644
--- a/OvmfPkg/Include/OvmfPlatforms.h
+++ b/OvmfPkg/Include/OvmfPlatforms.h
@@ -16,6 +16,7 @@
 #include <IndustryStandard/I440FxPiix4.h>
 #include <IndustryStandard/Bhyve.h>
 #include <IndustryStandard/Microvm.h>
+#include <IndustryStandard/CloudHv.h>
 
 //
 // OVMF Host Bridge DID Address
diff --git a/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c b/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c
index 7c593e8be1..e182ac2b7d 100644
--- a/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c
+++ b/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c
@@ -55,6 +55,9 @@ AcpiTimerLibConstructor (
       AcpiCtlReg = POWER_MGMT_REGISTER_Q35 (ICH9_ACPI_CNTL);
       AcpiEnBit  = ICH9_ACPI_CNTL_ACPI_EN;
       break;
+    case CLOUDHV_DEVICE_ID:
+      mAcpiTimerIoAddr =  CLOUDHV_ACPI_TIMER_IO_ADDRESS;
+      return RETURN_SUCCESS;
     default:
       DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
         __FUNCTION__, HostBridgeDevId));
diff --git a/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c b/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c
index 52f3ea2dbf..a223153b2b 100644
--- a/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c
+++ b/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c
@@ -53,6 +53,8 @@ AcpiTimerLibConstructor (
       AcpiCtlReg = POWER_MGMT_REGISTER_Q35 (ICH9_ACPI_CNTL);
       AcpiEnBit  = ICH9_ACPI_CNTL_ACPI_EN;
       break;
+    case CLOUDHV_DEVICE_ID:
+      return RETURN_SUCCESS;
     default:
       DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
         __FUNCTION__, HostBridgeDevId));
@@ -107,6 +109,8 @@ InternalAcpiGetTimerTick (
     case INTEL_Q35_MCH_DEVICE_ID:
       Pmba = POWER_MGMT_REGISTER_Q35 (ICH9_PMBASE);
       break;
+    case CLOUDHV_DEVICE_ID:
+      return IoRead32 (CLOUDHV_ACPI_TIMER_IO_ADDRESS);
     default:
       DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
         __FUNCTION__, HostBridgeDevId));
diff --git a/OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c b/OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c
index 09076c0ade..3c9efb926f 100644
--- a/OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c
+++ b/OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.c
@@ -50,6 +50,9 @@ AcpiTimerLibConstructor (
     case INTEL_Q35_MCH_DEVICE_ID:
       Pmba = POWER_MGMT_REGISTER_Q35 (ICH9_PMBASE);
       break;
+    case CLOUDHV_DEVICE_ID:
+      mAcpiTimerIoAddr = CLOUDHV_ACPI_TIMER_IO_ADDRESS;
+      return RETURN_SUCCESS;
     default:
       DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
         __FUNCTION__, HostBridgeDevId));
diff --git a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
index 186401296a..50bfb45351 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
@@ -1282,6 +1282,7 @@ PciAcpiInitialization (
       PciWrite8 (PCI_LIB_ADDRESS (0, 0x1f, 0, 0x6b), PciHostIrqs[3]); // H
       break;
     case MICROVM_PSEUDO_DEVICE_ID:
+    case CLOUDHV_DEVICE_ID:
       return;
     default:
       if (XenDetected ()) {
diff --git a/OvmfPkg/Library/ResetSystemLib/BaseResetShutdown.c b/OvmfPkg/Library/ResetSystemLib/BaseResetShutdown.c
index 21c80e4323..ba92299a3c 100644
--- a/OvmfPkg/Library/ResetSystemLib/BaseResetShutdown.c
+++ b/OvmfPkg/Library/ResetSystemLib/BaseResetShutdown.c
@@ -40,6 +40,9 @@ ResetShutdown (
   case INTEL_Q35_MCH_DEVICE_ID:
     AcpiPmBaseAddress = ICH9_PMBASE_VALUE;
     break;
+  case CLOUDHV_DEVICE_ID:
+    IoWrite8 (CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS, 5 << 2 | 1 << 5);
+    CpuDeadLoop ();
   default:
     ASSERT (FALSE);
     CpuDeadLoop ();
diff --git a/OvmfPkg/Library/ResetSystemLib/DxeResetShutdown.c b/OvmfPkg/Library/ResetSystemLib/DxeResetShutdown.c
index 5a75c32df3..a1c59ad042 100644
--- a/OvmfPkg/Library/ResetSystemLib/DxeResetShutdown.c
+++ b/OvmfPkg/Library/ResetSystemLib/DxeResetShutdown.c
@@ -34,6 +34,9 @@ DxeResetInit (
   case INTEL_Q35_MCH_DEVICE_ID:
     mAcpiPmBaseAddress = ICH9_PMBASE_VALUE;
     break;
+  case CLOUDHV_DEVICE_ID:
+    mAcpiPmBaseAddress = 0;
+    break;
   default:
     ASSERT (FALSE);
     CpuDeadLoop ();
@@ -56,7 +59,11 @@ ResetShutdown (
   VOID
   )
 {
-  IoBitFieldWrite16 (mAcpiPmBaseAddress + 4, 10, 13, 0);
-  IoOr16 (mAcpiPmBaseAddress + 4, BIT13);
+  if (mAcpiPmBaseAddress == 0) {
+    IoWrite8 (CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS, 5 << 2 | 1 << 5);
+  } else {
+    IoBitFieldWrite16 (mAcpiPmBaseAddress + 4, 10, 13, 0);
+    IoOr16 (mAcpiPmBaseAddress + 4, BIT13);
+  }
   CpuDeadLoop ();
 }
diff --git a/OvmfPkg/PlatformPei/MemDetect.c b/OvmfPkg/PlatformPei/MemDetect.c
index d736b85e0d..a534d7845d 100644
--- a/OvmfPkg/PlatformPei/MemDetect.c
+++ b/OvmfPkg/PlatformPei/MemDetect.c
@@ -16,6 +16,7 @@ Module Name:
 #include <IndustryStandard/E820.h>
 #include <IndustryStandard/I440FxPiix4.h>
 #include <IndustryStandard/Q35MchIch9.h>
+#include <IndustryStandard/CloudHv.h>
 #include <PiPei.h>
 #include <Register/Intel/SmramSaveStateMap.h>
 
@@ -135,21 +136,24 @@ QemuUc32BaseInitialization (
   UINT32 LowerMemorySize;
   UINT32 Uc32Size;
 
-  if (mHostBridgeDevId == 0xffff /* microvm */) {
-    return;
-  }
-
-  if (mHostBridgeDevId == INTEL_Q35_MCH_DEVICE_ID) {
-    //
-    // On q35, the 32-bit area that we'll mark as UC, through variable MTRRs,
-    // starts at PcdPciExpressBaseAddress. The platform DSC is responsible for
-    // setting PcdPciExpressBaseAddress such that describing the
-    // [PcdPciExpressBaseAddress, 4GB) range require a very small number of
-    // variable MTRRs (preferably 1 or 2).
-    //
-    ASSERT (FixedPcdGet64 (PcdPciExpressBaseAddress) <= MAX_UINT32);
-    mQemuUc32Base = (UINT32)FixedPcdGet64 (PcdPciExpressBaseAddress);
-    return;
+  switch (mHostBridgeDevId) {
+    case INTEL_Q35_MCH_DEVICE_ID:
+      //
+      // On q35, the 32-bit area that we'll mark as UC, through variable MTRRs,
+      // starts at PcdPciExpressBaseAddress. The platform DSC is responsible for
+      // setting PcdPciExpressBaseAddress such that describing the
+      // [PcdPciExpressBaseAddress, 4GB) range require a very small number of
+      // variable MTRRs (preferably 1 or 2).
+      //
+      ASSERT (FixedPcdGet64 (PcdPciExpressBaseAddress) <= MAX_UINT32);
+      mQemuUc32Base = (UINT32)FixedPcdGet64 (PcdPciExpressBaseAddress);
+      return;
+    case 0xffff: /* microvm */
+      return;
+    case CLOUDHV_DEVICE_ID:
+      Uc32Size = CLOUDHV_MMIO_HOLE_SIZE;
+      mQemuUc32Base = CLOUDHV_MMIO_HOLE_ADDRESS;
+      return;
   }
 
   ASSERT (mHostBridgeDevId == INTEL_82441_DEVICE_ID);
@@ -778,21 +782,22 @@ QemuInitializeRam (
   if (IsMtrrSupported ()) {
     MtrrGetAllMtrrs (&MtrrSettings);
 
-    //
-    // MTRRs disabled, fixed MTRRs disabled, default type is uncached
-    //
-    ASSERT ((MtrrSettings.MtrrDefType & BIT11) == 0);
-    ASSERT ((MtrrSettings.MtrrDefType & BIT10) == 0);
-    ASSERT ((MtrrSettings.MtrrDefType & 0xFF) == 0);
-
-    //
-    // flip default type to writeback
-    //
-    SetMem (&MtrrSettings.Fixed, sizeof MtrrSettings.Fixed, 0x06);
-    ZeroMem (&MtrrSettings.Variables, sizeof MtrrSettings.Variables);
-    MtrrSettings.MtrrDefType |= BIT11 | BIT10 | 6;
-    MtrrSetAllMtrrs (&MtrrSettings);
+    if (mHostBridgeDevId != CLOUDHV_DEVICE_ID) {
+      //
+      // MTRRs disabled, fixed MTRRs disabled, default type is uncached
+      //
+      ASSERT ((MtrrSettings.MtrrDefType & BIT11) == 0);
+      ASSERT ((MtrrSettings.MtrrDefType & BIT10) == 0);
+      ASSERT ((MtrrSettings.MtrrDefType & 0xFF) == 0);
 
+      //
+      // flip default type to writeback
+      //
+      SetMem (&MtrrSettings.Fixed, sizeof MtrrSettings.Fixed, 0x06);
+      ZeroMem (&MtrrSettings.Variables, sizeof MtrrSettings.Variables);
+      MtrrSettings.MtrrDefType |= BIT11 | BIT10 | 6;
+      MtrrSetAllMtrrs (&MtrrSettings);
+    }
     //
     // Set memory range from 640KB to 1MB to uncacheable
     //
diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c
index df2d9ad015..cad6a49680 100644
--- a/OvmfPkg/PlatformPei/Platform.c
+++ b/OvmfPkg/PlatformPei/Platform.c
@@ -346,6 +346,9 @@ MiscInitialization (
   //
   BuildCpuHob (mPhysMemAddressWidth, 16);
 
+  PcdStatus = PcdSet16S (PcdOvmfHostBridgePciDevId, mHostBridgeDevId);
+  ASSERT_RETURN_ERROR (PcdStatus);
+
   //
   // Determine platform type and save Host Bridge DID to PCD
   //
@@ -372,14 +375,18 @@ MiscInitialization (
                              MICROVM_PSEUDO_DEVICE_ID);
       ASSERT_RETURN_ERROR (PcdStatus);
       return;
+    case CLOUDHV_DEVICE_ID:
+      DEBUG ((DEBUG_INFO, "%a: Cloud Hypervisor host bridge\n", __FUNCTION__));
+      PcdStatus = PcdSet16S (PcdOvmfHostBridgePciDevId,
+                             CLOUDHV_DEVICE_ID);
+      ASSERT_RETURN_ERROR (PcdStatus);
+      return;
     default:
       DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
         __FUNCTION__, mHostBridgeDevId));
       ASSERT (FALSE);
       return;
   }
-  PcdStatus = PcdSet16S (PcdOvmfHostBridgePciDevId, mHostBridgeDevId);
-  ASSERT_RETURN_ERROR (PcdStatus);
 
   //
   // If the appropriate IOspace enable bit is set, assume the ACPI PMBA has
-- 
2.30.2

---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris, 
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

[PATCH 2/5] OvmfPkg: Create global entry point for SMBIOS parsing

[sebastien.boeuf]

From: Sebastien Boeuf <sebastien.boeuf@intel.com>

Move the generic entry point part out of Qemu.c to anticipate the
addition of new ways of retrieving the SMBIOS table.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
 OvmfPkg/SmbiosPlatformDxe/EntryPoint.c        | 47 +++++++++++++++++++
 OvmfPkg/SmbiosPlatformDxe/Qemu.c              | 35 --------------
 .../SmbiosPlatformDxe/SmbiosPlatformDxe.inf   |  1 +
 3 files changed, 48 insertions(+), 35 deletions(-)
 create mode 100644 OvmfPkg/SmbiosPlatformDxe/EntryPoint.c

diff --git a/OvmfPkg/SmbiosPlatformDxe/EntryPoint.c b/OvmfPkg/SmbiosPlatformDxe/EntryPoint.c
new file mode 100644
index 0000000000..d3b1836a04
--- /dev/null
+++ b/OvmfPkg/SmbiosPlatformDxe/EntryPoint.c
@@ -0,0 +1,47 @@
+/** @file
+  Find and extract SMBIOS data.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <Library/MemoryAllocationLib.h> // FreePool()
+
+#include "SmbiosPlatformDxe.h"
+
+UINT8 *
+GetQemuSmbiosTables (
+  VOID
+  );
+
+/**
+  Installs SMBIOS information for OVMF
+
+  @param ImageHandle     Module's image handle
+  @param SystemTable     Pointer of EFI_SYSTEM_TABLE
+
+  @retval EFI_SUCCESS    Smbios data successfully installed
+  @retval Other          Smbios data was not installed
+
+**/
+EFI_STATUS
+EFIAPI
+SmbiosTablePublishEntry (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_SYSTEM_TABLE     *SystemTable
+  )
+{
+  EFI_STATUS                Status;
+  UINT8                     *SmbiosTables;
+
+  Status = EFI_NOT_FOUND;
+  //
+  // Add QEMU SMBIOS data if found
+  //
+  SmbiosTables = GetQemuSmbiosTables ();
+  if (SmbiosTables != NULL) {
+    Status = InstallAllStructures (SmbiosTables);
+    FreePool (SmbiosTables);
+  }
+
+  return Status;
+}
diff --git a/OvmfPkg/SmbiosPlatformDxe/Qemu.c b/OvmfPkg/SmbiosPlatformDxe/Qemu.c
index a668c6ac21..56e720aa08 100644
--- a/OvmfPkg/SmbiosPlatformDxe/Qemu.c
+++ b/OvmfPkg/SmbiosPlatformDxe/Qemu.c
@@ -11,8 +11,6 @@
 #include <Library/PcdLib.h>              // PcdGetBool()
 #include <Library/QemuFwCfgLib.h>        // QemuFwCfgFindFile()
 
-#include "SmbiosPlatformDxe.h"
-
 /**
   Locates and extracts the QEMU SMBIOS data if present in fw_cfg
 
@@ -48,36 +46,3 @@ GetQemuSmbiosTables (
 
   return QemuTables;
 }
-
-/**
-  Installs SMBIOS information for OVMF
-
-  @param ImageHandle     Module's image handle
-  @param SystemTable     Pointer of EFI_SYSTEM_TABLE
-
-  @retval EFI_SUCCESS    Smbios data successfully installed
-  @retval Other          Smbios data was not installed
-
-**/
-EFI_STATUS
-EFIAPI
-SmbiosTablePublishEntry (
-  IN EFI_HANDLE           ImageHandle,
-  IN EFI_SYSTEM_TABLE     *SystemTable
-  )
-{
-  EFI_STATUS                Status;
-  UINT8                     *SmbiosTables;
-
-  Status = EFI_NOT_FOUND;
-  //
-  // Add QEMU SMBIOS data if found
-  //
-  SmbiosTables = GetQemuSmbiosTables ();
-  if (SmbiosTables != NULL) {
-    Status = InstallAllStructures (SmbiosTables);
-    FreePool (SmbiosTables);
-  }
-
-  return Status;
-}
diff --git a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
index eaee73110d..e239a631f2 100644
--- a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
+++ b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
@@ -24,6 +24,7 @@
 #
 
 [Sources]
+  EntryPoint.c
   Qemu.c
   SmbiosPlatformDxe.c
   SmbiosPlatformDxe.h
-- 
2.30.2

---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris, 
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

[PATCH 3/5] OvmfPkg: Retrieve SMBIOS from Cloud Hypervisor

[sebastien.boeuf]

From: Sebastien Boeuf <sebastien.boeuf@intel.com>

Add a fallback on the SMBIOS code to find the SMBIOS table for Cloud
Hypervisor if it couldn't be found for Qemu through fw_cfg.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
 OvmfPkg/Include/IndustryStandard/CloudHv.h    |  5 +++
 OvmfPkg/SmbiosPlatformDxe/CloudHv.c           | 32 +++++++++++++++++++
 OvmfPkg/SmbiosPlatformDxe/EntryPoint.c        | 23 +++++++++++--
 .../SmbiosPlatformDxe/SmbiosPlatformDxe.inf   |  1 +
 4 files changed, 59 insertions(+), 2 deletions(-)
 create mode 100644 OvmfPkg/SmbiosPlatformDxe/CloudHv.c

diff --git a/OvmfPkg/Include/IndustryStandard/CloudHv.h b/OvmfPkg/Include/IndustryStandard/CloudHv.h
index 6ab18ad50d..ad0e170795 100644
--- a/OvmfPkg/Include/IndustryStandard/CloudHv.h
+++ b/OvmfPkg/Include/IndustryStandard/CloudHv.h
@@ -32,4 +32,9 @@
 //
 #define CLOUDHV_MMIO_HOLE_SIZE 0x38000000
 
+//
+// SMBIOS address
+//
+#define CLOUDHV_SMBIOS_ADDRESS 0xf0000
+
 #endif // __CLOUDHV_H__
diff --git a/OvmfPkg/SmbiosPlatformDxe/CloudHv.c b/OvmfPkg/SmbiosPlatformDxe/CloudHv.c
new file mode 100644
index 0000000000..f56a810684
--- /dev/null
+++ b/OvmfPkg/SmbiosPlatformDxe/CloudHv.c
@@ -0,0 +1,32 @@
+/** @file
+  Find Cloud Hypervisor SMBIOS data.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <IndustryStandard/CloudHv.h> // CLOUDHV_SMBIOS_ADDRESS
+#include <IndustryStandard/SmBios.h>  // SMBIOS_TABLE_3_0_ENTRY_POINT
+
+/**
+  Locates and extracts the QEMU SMBIOS data if present in fw_cfg
+
+  @return                 Address of extracted QEMU SMBIOS data
+
+**/
+UINT8 *
+GetCloudHvSmbiosTables (
+  VOID
+  )
+{
+  SMBIOS_TABLE_3_0_ENTRY_POINT *CloudHvTables = (VOID *)CLOUDHV_SMBIOS_ADDRESS;
+
+  if (CloudHvTables->AnchorString[0] == '_' &&
+      CloudHvTables->AnchorString[1] == 'S' &&
+      CloudHvTables->AnchorString[2] == 'M' &&
+      CloudHvTables->AnchorString[3] == '3' &&
+      CloudHvTables->AnchorString[4] == '_') {
+    return (UINT8*)(UINTN)CloudHvTables->TableAddress;
+  }
+
+  return NULL;
+}
diff --git a/OvmfPkg/SmbiosPlatformDxe/EntryPoint.c b/OvmfPkg/SmbiosPlatformDxe/EntryPoint.c
index d3b1836a04..28faabb46a 100644
--- a/OvmfPkg/SmbiosPlatformDxe/EntryPoint.c
+++ b/OvmfPkg/SmbiosPlatformDxe/EntryPoint.c
@@ -8,6 +8,11 @@
 
 #include "SmbiosPlatformDxe.h"
 
+UINT8 *
+GetCloudHvSmbiosTables (
+  VOID
+  );
+
 UINT8 *
 GetQemuSmbiosTables (
   VOID
@@ -32,14 +37,28 @@ SmbiosTablePublishEntry (
 {
   EFI_STATUS                Status;
   UINT8                     *SmbiosTables;
+  BOOLEAN                   FreeTables = FALSE;
 
   Status = EFI_NOT_FOUND;
   //
   // Add QEMU SMBIOS data if found
   //
   SmbiosTables = GetQemuSmbiosTables ();
-  if (SmbiosTables != NULL) {
-    Status = InstallAllStructures (SmbiosTables);
+  if (SmbiosTables == NULL) {
+    SmbiosTables = GetCloudHvSmbiosTables ();
+    if (SmbiosTables == NULL) {
+      return EFI_NOT_FOUND;
+    }
+  } else {
+    FreeTables = TRUE;
+  }
+
+  Status = InstallAllStructures (SmbiosTables);
+
+  //
+  // Free SmbiosTables if allocated by Qemu.
+  //
+  if (FreeTables) {
     FreePool (SmbiosTables);
   }
 
diff --git a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
index e239a631f2..365d96241e 100644
--- a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
+++ b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
@@ -24,6 +24,7 @@
 #
 
 [Sources]
+  CloudHv.c
   EntryPoint.c
   Qemu.c
   SmbiosPlatformDxe.c
-- 
2.30.2

---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris, 
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

[PATCH 4/5] OvmfPkg: Generalize AcpiPlatformDxe

[sebastien.boeuf]

From: Sebastien Boeuf <sebastien.boeuf@intel.com>

Don't make the package Qemu centric so that we can introduce some
alternative support for other VMMs not using the fw_cfg mechanism.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
 ArmVirtPkg/ArmVirtQemu.dsc                                    | 2 +-
 ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc                          | 2 +-
 ArmVirtPkg/ArmVirtQemuKernel.dsc                              | 2 +-
 .../{QemuFwCfgAcpiPlatform.c => AcpiPlatform.c}               | 4 ++--
 .../{QemuFwCfgAcpiPlatformDxe.inf => AcpiPlatformDxe.inf}     | 4 ++--
 OvmfPkg/AmdSev/AmdSevX64.dsc                                  | 2 +-
 OvmfPkg/AmdSev/AmdSevX64.fdf                                  | 2 +-
 OvmfPkg/Microvm/MicrovmX64.dsc                                | 2 +-
 OvmfPkg/Microvm/MicrovmX64.fdf                                | 2 +-
 OvmfPkg/OvmfPkgIa32.dsc                                       | 2 +-
 OvmfPkg/OvmfPkgIa32.fdf                                       | 2 +-
 OvmfPkg/OvmfPkgIa32X64.dsc                                    | 2 +-
 OvmfPkg/OvmfPkgIa32X64.fdf                                    | 2 +-
 OvmfPkg/OvmfPkgX64.dsc                                        | 2 +-
 OvmfPkg/OvmfPkgX64.fdf                                        | 2 +-
 15 files changed, 17 insertions(+), 17 deletions(-)
 rename OvmfPkg/AcpiPlatformDxe/{QemuFwCfgAcpiPlatform.c => AcpiPlatform.c} (78%)
 rename OvmfPkg/AcpiPlatformDxe/{QemuFwCfgAcpiPlatformDxe.inf => AcpiPlatformDxe.inf} (90%)

diff --git a/ArmVirtPkg/ArmVirtQemu.dsc b/ArmVirtPkg/ArmVirtQemu.dsc
index 891e065311..84c28b0c1d 100644
--- a/ArmVirtPkg/ArmVirtQemu.dsc
+++ b/ArmVirtPkg/ArmVirtQemu.dsc
@@ -543,7 +543,7 @@
   ArmVirtPkg/PlatformHasAcpiDtDxe/PlatformHasAcpiDtDxe.inf
 [Components.AARCH64]
   MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
-  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf {
+  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf {
     <LibraryClasses>
       NULL|OvmfPkg/Fdt/FdtPciPcdProducerLib/FdtPciPcdProducerLib.inf
   }
diff --git a/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc b/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc
index f6a538df72..d4df6dede0 100644
--- a/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc
+++ b/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc
@@ -145,7 +145,7 @@ READ_LOCK_STATUS   = TRUE
 !if $(ARCH) == AARCH64
   INF MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
   INF MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
-  INF OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+  INF OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
 
   #
   # EBC support
diff --git a/ArmVirtPkg/ArmVirtQemuKernel.dsc b/ArmVirtPkg/ArmVirtQemuKernel.dsc
index a8bb83b288..8e82c5050f 100644
--- a/ArmVirtPkg/ArmVirtQemuKernel.dsc
+++ b/ArmVirtPkg/ArmVirtQemuKernel.dsc
@@ -458,7 +458,7 @@
   ArmVirtPkg/PlatformHasAcpiDtDxe/PlatformHasAcpiDtDxe.inf
 [Components.AARCH64]
   MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
-  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf {
+  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf {
     <LibraryClasses>
       NULL|OvmfPkg/Fdt/FdtPciPcdProducerLib/FdtPciPcdProducerLib.inf
   }
diff --git a/OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatform.c b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
similarity index 78%
rename from OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatform.c
rename to OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
index 057a450af9..613a8ac97f 100644
--- a/OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatform.c
+++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
@@ -1,5 +1,5 @@
 /** @file
-  OVMF ACPI Platform Driver using QEMU's fw-cfg interface
+  OVMF ACPI Platform Driver
 
   Copyright (C) 2015, Red Hat, Inc.
   Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>
@@ -10,7 +10,7 @@
 #include "AcpiPlatform.h"
 
 /**
-  Effective entrypoint of QEMU fw-cfg Acpi Platform driver.
+  Effective entrypoint of Acpi Platform driver.
 
   @param  ImageHandle
   @param  SystemTable
diff --git a/OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf b/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
similarity index 90%
rename from OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
rename to OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
index dac25d1505..eedd3b5af3 100644
--- a/OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
@@ -1,5 +1,5 @@
 ## @file
-#  OVMF ACPI Platform Driver using QEMU's fw-cfg interface
+#  OVMF ACPI Platform Driver
 #
 #  Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -21,12 +21,12 @@
 #
 
 [Sources]
+  AcpiPlatform.c
   AcpiPlatform.h
   BootScript.c
   EntryPoint.c
   PciDecoding.c
   QemuFwCfgAcpi.c
-  QemuFwCfgAcpiPlatform.c
 
 [Packages]
   MdeModulePkg/MdeModulePkg.dec
diff --git a/OvmfPkg/AmdSev/AmdSevX64.dsc b/OvmfPkg/AmdSev/AmdSevX64.dsc
index 5ee5445116..14ab027f63 100644
--- a/OvmfPkg/AmdSev/AmdSevX64.dsc
+++ b/OvmfPkg/AmdSev/AmdSevX64.dsc
@@ -773,7 +773,7 @@
   # ACPI Support
   #
   MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
   MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
 
   #
diff --git a/OvmfPkg/AmdSev/AmdSevX64.fdf b/OvmfPkg/AmdSev/AmdSevX64.fdf
index 5662609886..5b61da2edd 100644
--- a/OvmfPkg/AmdSev/AmdSevX64.fdf
+++ b/OvmfPkg/AmdSev/AmdSevX64.fdf
@@ -271,7 +271,7 @@ INF  MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.inf
 INF  OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
 
 INF  MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-INF  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+INF  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
 
 INF  FatPkg/EnhancedFatDxe/Fat.inf
diff --git a/OvmfPkg/Microvm/MicrovmX64.dsc b/OvmfPkg/Microvm/MicrovmX64.dsc
index 617f925395..2c6f932d95 100644
--- a/OvmfPkg/Microvm/MicrovmX64.dsc
+++ b/OvmfPkg/Microvm/MicrovmX64.dsc
@@ -751,7 +751,7 @@
   # ACPI Support
   #
   MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
   MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
   MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
   MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
diff --git a/OvmfPkg/Microvm/MicrovmX64.fdf b/OvmfPkg/Microvm/MicrovmX64.fdf
index 6314014f3d..459c639e5a 100644
--- a/OvmfPkg/Microvm/MicrovmX64.fdf
+++ b/OvmfPkg/Microvm/MicrovmX64.fdf
@@ -268,7 +268,7 @@ INF  MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.inf
 INF  OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
 
 INF  MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-INF  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+INF  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
 INF  MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index 6a5be97c05..61209e3db1 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -870,7 +870,7 @@
   # ACPI Support
   #
   MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
   MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
   MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
   MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
diff --git a/OvmfPkg/OvmfPkgIa32.fdf b/OvmfPkg/OvmfPkgIa32.fdf
index 775ea2d710..6b37238634 100644
--- a/OvmfPkg/OvmfPkgIa32.fdf
+++ b/OvmfPkg/OvmfPkgIa32.fdf
@@ -281,7 +281,7 @@ INF  MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.inf
 INF  OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
 
 INF  MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-INF  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+INF  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
 INF  MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
index 71227d1b70..a4447508bc 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -884,7 +884,7 @@
   # ACPI Support
   #
   MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
   MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
   MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
   MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
diff --git a/OvmfPkg/OvmfPkgIa32X64.fdf b/OvmfPkg/OvmfPkgIa32X64.fdf
index 9d8695922f..88f3e16656 100644
--- a/OvmfPkg/OvmfPkgIa32X64.fdf
+++ b/OvmfPkg/OvmfPkgIa32X64.fdf
@@ -285,7 +285,7 @@ INF  MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.inf
 INF  OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
 
 INF  MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-INF  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+INF  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
 INF  MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index 52f7598cf1..6b1d8d3247 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -882,7 +882,7 @@
   # ACPI Support
   #
   MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
   MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
   MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
   MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
diff --git a/OvmfPkg/OvmfPkgX64.fdf b/OvmfPkg/OvmfPkgX64.fdf
index b6cc3cabdd..c97c4ae16c 100644
--- a/OvmfPkg/OvmfPkgX64.fdf
+++ b/OvmfPkg/OvmfPkgX64.fdf
@@ -301,7 +301,7 @@ INF  MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.inf
 INF  OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
 
 INF  MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableDxe.inf
-INF  OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpiPlatformDxe.inf
+INF  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
 INF  MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/BootScriptExecutorDxe.inf
 INF  MdeModulePkg/Universal/Acpi/BootGraphicsResourceTableDxe/BootGraphicsResourceTableDxe.inf
-- 
2.30.2

---------------------------------------------------------------------
Intel Corporation SAS (French simplified joint stock company)
Registered headquarters: "Les Montalets"- 2, rue de Paris, 
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
Capital: 4,572,000 Euros

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

[PATCH 5/5] OvmfPkg: Install ACPI tables for Cloud Hypervisor

[sebastien.boeuf]

From: Sebastien Boeuf <sebastien.boeuf@intel.com>

Adding support for retrieving the Cloud Hypervisor ACPI tables as a
fallback mechanism if tables are not found through fw_cfg.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
 OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c      |   4 +
 OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h      |   6 +
 OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf |   1 +
 OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c       | 117 ++++++++++++++++++++
 OvmfPkg/Include/IndustryStandard/CloudHv.h  |   5 +
 5 files changed, 133 insertions(+)
 create mode 100644 OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c

diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
index 613a8ac97f..abd1f550d4 100644
--- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
+++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
@@ -29,5 +29,9 @@ InstallAcpiTables (
   EFI_STATUS                         Status;
 
   Status = InstallQemuFwCfgTables (AcpiTable);
+  if (EFI_ERROR (Status)) {
+    Status = InstallCloudHvTables (AcpiTable);
+  }
+
   return Status;
 }
diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h
index bd4c26f07f..bee48a93da 100644
--- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h
+++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h
@@ -19,6 +19,12 @@ typedef struct {
 
 typedef struct S3_CONTEXT S3_CONTEXT;
 
+EFI_STATUS
+EFIAPI
+InstallCloudHvTables (
+  IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol
+  );
+
 EFI_STATUS
 EFIAPI
 InstallQemuFwCfgTables (
diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf b/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
index eedd3b5af3..3ac9054d75 100644
--- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
+++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf
@@ -24,6 +24,7 @@
   AcpiPlatform.c
   AcpiPlatform.h
   BootScript.c
+  CloudHvAcpi.c
   EntryPoint.c
   PciDecoding.c
   QemuFwCfgAcpi.c
diff --git a/OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c b/OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c
new file mode 100644
index 0000000000..96c532cce6
--- /dev/null
+++ b/OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c
@@ -0,0 +1,117 @@
+/** @file
+  OVMF ACPI Cloud Hypervisor support
+
+  Copyright (c) 2021, Intel Corporation. All rights reserved.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <IndustryStandard/CloudHv.h> // CLOUDHV_RSDP_ADDRESS
+#include <Library/BaseLib.h>          // CpuDeadLoop()
+#include <Library/DebugLib.h>         // DEBUG()
+
+#include "AcpiPlatform.h"
+
+// Get the ACPI tables from EBDA start
+EFI_STATUS
+EFIAPI
+InstallCloudHvTables (
+  IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol
+  )
+{
+  EFI_STATUS                                       Status;
+  UINTN                                            TableHandle;
+
+  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_DESCRIPTION_HEADER                      *DsdtTable;
+  Fadt2Table  = NULL;
+  DsdtTable   = NULL;
+  TableHandle = 0;
+  NumberOfTableEntries = 0;
+  EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER *AcpiRsdpStructurePtr = (VOID *)CLOUDHV_RSDP_ADDRESS;
+
+  // If XSDT table is found, just install its tables.
+  // Otherwise, try to find and install the RSDT tables.
+  //
+  if (AcpiRsdpStructurePtr->XsdtAddress) {
+    //
+    // Retrieve the addresses of XSDT and
+    // calculate the number of its table entries.
+    //
+    Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN)
+             AcpiRsdpStructurePtr->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)) {
+        ASSERT_EFI_ERROR(Status);
+        return Status;
+      }
+
+      //
+      // Get the X-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;
+        DsdtTable  = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Fadt2Table->XDsdt;
+      }
+    }
+  } else {
+    return EFI_NOT_FOUND;
+  }
+
+  //
+  // 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", __FUNCTION__));
+    ASSERT (FALSE);
+    CpuDeadLoop ();
+  }
+
+  Status = AcpiProtocol->InstallAcpiTable (
+             AcpiProtocol,
+             DsdtTable,
+             DsdtTable->Length,
+             &TableHandle
+             );
+  if (EFI_ERROR (Status)) {
+    ASSERT_EFI_ERROR(Status);
+    return Status;
+  }
+
+  return EFI_SUCCESS;
+}
diff --git a/OvmfPkg/Include/IndustryStandard/CloudHv.h b/OvmfPkg/Include/IndustryStandard/CloudHv.h
index ad0e170795..3a01dbb7d7 100644
--- a/OvmfPkg/Include/IndustryStandard/CloudHv.h
+++ b/OvmfPkg/Include/IndustryStandard/CloudHv.h
@@ -37,4 +37,9 @@
 //
 #define CLOUDHV_SMBIOS_ADDRESS 0xf0000
 
+//
+// RSDP address
+//
+#define CLOUDHV_RSDP_ADDRESS 0xa0000
+
 #endif // __CLOUDHV_H__
-- 
2.30.2

---------------------------------------------------------------------
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Registered headquarters: "Les Montalets"- 2, rue de Paris, 
92196 Meudon Cedex, France
Registration Number:  302 456 199 R.C.S. NANTERRE
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Re: [PATCH 1/5] OvmfPkg: Handle Cloud Hypervisor host bridge

[Gerd Hoffmann]

  Hi,

> +    case CLOUDHV_DEVICE_ID: // Cloud Hypervisor host bridge

No need for the comment ...

> +++ b/OvmfPkg/Include/IndustryStandard/CloudHv.h
> @@ -0,0 +1,35 @@
> +/** @file
> +  Various defines related to Cloud Hypervisor
> +
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +#ifndef __CLOUDHV_H__
> +#define __CLOUDHV_H__
> +
> +//
> +// Host Bridge Device ID
> +//
> +#define CLOUDHV_DEVICE_ID 0x0d57

... this is enough documentation IMHO.

> +  if (mAcpiPmBaseAddress == 0) {
> +    IoWrite8 (CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS, 5 << 2 | 1 << 5);

This looks like the sleep control register of the hw-reduced acpi pm
profile.  I'd suggest to use a new variable then, for example use

    mAcpiHwReducedSleepCtl = CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS

> +    case 0xffff: /* microvm */
> +      return;

Huh?

> @@ -778,21 +782,22 @@ QemuInitializeRam (
>    if (IsMtrrSupported ()) {
>      MtrrGetAllMtrrs (&MtrrSettings);
>  
> -    //
> -    // MTRRs disabled, fixed MTRRs disabled, default type is uncached
> -    //
> -    ASSERT ((MtrrSettings.MtrrDefType & BIT11) == 0);
> -    ASSERT ((MtrrSettings.MtrrDefType & BIT10) == 0);
> -    ASSERT ((MtrrSettings.MtrrDefType & 0xFF) == 0);
> -
> -    //
> -    // flip default type to writeback
> -    //
> -    SetMem (&MtrrSettings.Fixed, sizeof MtrrSettings.Fixed, 0x06);
> -    ZeroMem (&MtrrSettings.Variables, sizeof MtrrSettings.Variables);
> -    MtrrSettings.MtrrDefType |= BIT11 | BIT10 | 6;
> -    MtrrSetAllMtrrs (&MtrrSettings);
> +    if (mHostBridgeDevId != CLOUDHV_DEVICE_ID) {

Do you need the MtrrGetAllMtrrs() call?  If not you can just use this:

   if (IsMtrrSupported () && mHostBridgeDevId != CLOUDHV_DEVICE_ID) 


> @@ -372,14 +375,18 @@ MiscInitialization (
>                               MICROVM_PSEUDO_DEVICE_ID);
>        ASSERT_RETURN_ERROR (PcdStatus);
>        return;
> +    case CLOUDHV_DEVICE_ID:
> +      DEBUG ((DEBUG_INFO, "%a: Cloud Hypervisor host bridge\n", __FUNCTION__));
> +      PcdStatus = PcdSet16S (PcdOvmfHostBridgePciDevId,
> +                             CLOUDHV_DEVICE_ID);
> +      ASSERT_RETURN_ERROR (PcdStatus);
> +      return;
>      default:
>        DEBUG ((DEBUG_ERROR, "%a: Unknown Host Bridge Device ID: 0x%04x\n",
>          __FUNCTION__, mHostBridgeDevId));
>        ASSERT (FALSE);
>        return;
>    }
> -  PcdStatus = PcdSet16S (PcdOvmfHostBridgePciDevId, mHostBridgeDevId);
> -  ASSERT_RETURN_ERROR (PcdStatus);

Removing this check looks suspicious.

If it is not needed here for some reason move that change to a separate
patch with a commit message explaining things.

take care,
  Gerd

Re: [PATCH 2/5] OvmfPkg: Create global entry point for SMBIOS parsing

[Gerd Hoffmann]

  Hi,

> +#include "SmbiosPlatformDxe.h"
> +
> +UINT8 *
> +GetQemuSmbiosTables (
> +  VOID
> +  );

That declaration should be in SmbiosPlatformDxe.h

take care,
  Gerd

Re: [PATCH 3/5] OvmfPkg: Retrieve SMBIOS from Cloud Hypervisor

[Gerd Hoffmann]

>    Status = EFI_NOT_FOUND;
>    //
>    // Add QEMU SMBIOS data if found
>    //
>    SmbiosTables = GetQemuSmbiosTables ();
> -  if (SmbiosTables != NULL) {
> -    Status = InstallAllStructures (SmbiosTables);
> +  if (SmbiosTables == NULL) {
> +    SmbiosTables = GetCloudHvSmbiosTables ();

Check PcdOvmfHostBridgePciDevId here to figure whenever
GetQemuSmbiosTables or GetCloudHvSmbiosTables should be called?

Should be more robust and give us a slightly less messy code flow,
specifically when it comes to flip FreeTables to true for the qemu
case.

take care,
  Gerd

Re: [PATCH 4/5] OvmfPkg: Generalize AcpiPlatformDxe

[Gerd Hoffmann]

On Wed, Dec 01, 2021 at 12:04:35PM +0100, sebastien.boeuf@intel.com wrote:
> From: Sebastien Boeuf <sebastien.boeuf@intel.com>
> 
> Don't make the package Qemu centric so that we can introduce some
> alternative support for other VMMs not using the fw_cfg mechanism.

So a pure rename without functional change.  Please add that to the
commit message.

With that update:
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>

take care,
  Gerd

Re: [PATCH 5/5] OvmfPkg: Install ACPI tables for Cloud Hypervisor

[Gerd Hoffmann]

On Wed, Dec 01, 2021 at 12:04:36PM +0100, sebastien.boeuf@intel.com wrote:
> From: Sebastien Boeuf <sebastien.boeuf@intel.com>
> 
> Adding support for retrieving the Cloud Hypervisor ACPI tables as a
> fallback mechanism if tables are not found through fw_cfg.
> 
> Signed-off-by: Rob Bradford <robert.bradford@intel.com>
> Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
> ---
>  OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c      |   4 +
>  OvmfPkg/AcpiPlatformDxe/AcpiPlatform.h      |   6 +
>  OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf |   1 +
>  OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c       | 117 ++++++++++++++++++++
>  OvmfPkg/Include/IndustryStandard/CloudHv.h  |   5 +
>  5 files changed, 133 insertions(+)
>  create mode 100644 OvmfPkg/AcpiPlatformDxe/CloudHvAcpi.c
> 
> diff --git a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
> index 613a8ac97f..abd1f550d4 100644
> --- a/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
> +++ b/OvmfPkg/AcpiPlatformDxe/AcpiPlatform.c
> @@ -29,5 +29,9 @@ InstallAcpiTables (
>    EFI_STATUS                         Status;
>  
>    Status = InstallQemuFwCfgTables (AcpiTable);
> +  if (EFI_ERROR (Status)) {
> +    Status = InstallCloudHvTables (AcpiTable);
> +  }

Same here, I think you should use the host bridge pcd.

take care,
  Gerd