diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/OvmfPkg/Bhyve/AcpiPlatformDxe/Bhyve.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/OvmfPkg/Bhyve/AcpiPlatformDxe/Bhyve.c')
| -rw-r--r-- | roms/edk2/OvmfPkg/Bhyve/AcpiPlatformDxe/Bhyve.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Bhyve/AcpiPlatformDxe/Bhyve.c b/roms/edk2/OvmfPkg/Bhyve/AcpiPlatformDxe/Bhyve.c new file mode 100644 index 000000000..6d42264b6 --- /dev/null +++ b/roms/edk2/OvmfPkg/Bhyve/AcpiPlatformDxe/Bhyve.c @@ -0,0 +1,132 @@ +/*
+ * Copyright (c) 2020, Rebecca Cran <rebecca@bsdio.com>
+ * Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
+ * Copyright (C) 2012, Red Hat, Inc.
+ * Copyright (c) 2014, Pluribus Networks, Inc.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause-Patent
+ */
+#include "AcpiPlatform.h"
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/BhyveFwCtlLib.h>
+
+STATIC
+EFI_STATUS
+EFIAPI
+BhyveInstallAcpiMadtTable (
+ IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,
+ IN VOID *AcpiTableBuffer,
+ IN UINTN AcpiTableBufferSize,
+ OUT UINTN *TableKey
+ )
+{
+ UINT32 CpuCount;
+ UINTN cSize;
+ UINTN NewBufferSize;
+ EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER *Madt;
+ EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE *LocalApic;
+ EFI_ACPI_1_0_IO_APIC_STRUCTURE *IoApic;
+ EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE *Iso;
+ VOID *Ptr;
+ UINTN Loop;
+ EFI_STATUS Status;
+
+ ASSERT (AcpiTableBufferSize >= sizeof (EFI_ACPI_DESCRIPTION_HEADER));
+
+ // Query the host for the number of vCPUs
+ CpuCount = 0;
+ cSize = sizeof(CpuCount);
+ if (BhyveFwCtlGet ("hw.ncpu", &CpuCount, &cSize) == RETURN_SUCCESS) {
+ DEBUG ((DEBUG_INFO, "Retrieved CpuCount %d\n", CpuCount));
+ ASSERT (CpuCount >= 1);
+ } else {
+ DEBUG ((DEBUG_INFO, "CpuCount retrieval error\n"));
+ CpuCount = 1;
+ }
+
+ NewBufferSize = 1 * sizeof (*Madt) +
+ CpuCount * sizeof (*LocalApic) +
+ 1 * sizeof (*IoApic) +
+ 1 * sizeof (*Iso);
+
+ Madt = AllocatePool (NewBufferSize);
+ if (Madt == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CopyMem (&(Madt->Header), AcpiTableBuffer, sizeof (EFI_ACPI_DESCRIPTION_HEADER));
+ Madt->Header.Length = (UINT32) NewBufferSize;
+ Madt->LocalApicAddress = 0xFEE00000;
+ Madt->Flags = EFI_ACPI_1_0_PCAT_COMPAT;
+ Ptr = Madt + 1;
+
+ LocalApic = Ptr;
+ for (Loop = 0; Loop < CpuCount; ++Loop) {
+ LocalApic->Type = EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC;
+ LocalApic->Length = sizeof (*LocalApic);
+ LocalApic->AcpiProcessorId = (UINT8) Loop;
+ LocalApic->ApicId = (UINT8) Loop;
+ LocalApic->Flags = 1; // enabled
+ ++LocalApic;
+ }
+ Ptr = LocalApic;
+
+ IoApic = Ptr;
+ IoApic->Type = EFI_ACPI_1_0_IO_APIC;
+ IoApic->Length = sizeof (*IoApic);
+ IoApic->IoApicId = (UINT8) CpuCount;
+ IoApic->Reserved = EFI_ACPI_RESERVED_BYTE;
+ IoApic->IoApicAddress = 0xFEC00000;
+ IoApic->SystemVectorBase = 0x00000000;
+ Ptr = IoApic + 1;
+
+ //
+ // IRQ0 (8254 Timer) => IRQ2 (PIC) Interrupt Source Override Structure
+ //
+ Iso = Ptr;
+ Iso->Type = EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE;
+ Iso->Length = sizeof (*Iso);
+ Iso->Bus = 0x00; // ISA
+ Iso->Source = 0x00; // IRQ0
+ Iso->GlobalSystemInterruptVector = 0x00000002;
+ Iso->Flags = 0x0000; // Conforms to specs of the bus
+ Ptr = Iso + 1;
+
+ ASSERT ((UINTN) ((UINT8 *)Ptr - (UINT8 *)Madt) == NewBufferSize);
+ Status = InstallAcpiTable (AcpiProtocol, Madt, NewBufferSize, TableKey);
+
+ FreePool (Madt);
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+BhyveInstallAcpiTable (
+ IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,
+ IN VOID *AcpiTableBuffer,
+ IN UINTN AcpiTableBufferSize,
+ OUT UINTN *TableKey
+ )
+{
+ EFI_ACPI_DESCRIPTION_HEADER *Hdr;
+ EFI_ACPI_TABLE_INSTALL_ACPI_TABLE TableInstallFunction;
+
+ Hdr = (EFI_ACPI_DESCRIPTION_HEADER*) AcpiTableBuffer;
+ switch (Hdr->Signature) {
+ case EFI_ACPI_1_0_APIC_SIGNATURE:
+ TableInstallFunction = BhyveInstallAcpiMadtTable;
+ break;
+ default:
+ TableInstallFunction = InstallAcpiTable;
+ }
+
+ return TableInstallFunction (
+ AcpiProtocol,
+ AcpiTableBuffer,
+ AcpiTableBufferSize,
+ TableKey
+ );
+}
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