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From f84ae61b0b82097f318c96ee5c198cf9495568e2 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineeringinc.com>
Date: Tue, 11 Aug 2015 17:48:32 -0500
Subject: [PATCH 110/139] arch/x86/acpi: Add IVRS table generation routines
Change-Id: Ia5d97d01dc9ddc45f81d998d126d592a915b4a75
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
---
src/arch/x86/acpi.c | 25 +++++++++++++++++++++++++
src/arch/x86/include/arch/acpi.h | 31 +++++++++++++++++++++++++++++++
2 files changed, 56 insertions(+)
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
index 417a322..e73e5f2 100644
--- a/src/arch/x86/acpi.c
+++ b/src/arch/x86/acpi.c
@@ -6,6 +6,7 @@
*
* Copyright (C) 2004 SUSE LINUX AG
* Copyright (C) 2005-2009 coresystems GmbH
+ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
*
* ACPI FADT, FACS, and DSDT table support added by
* Nick Barker <nick.barker9@btinternet.com>, and those portions
@@ -506,6 +507,30 @@ void acpi_create_hpet(acpi_hpet_t *hpet)
header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t));
}
+void acpi_create_ivrs(acpi_ivrs_t *ivrs,
+ unsigned long (*acpi_fill_ivrs)(acpi_ivrs_t* ivrs_struct, unsigned long current))
+{
+ acpi_header_t *header = &(ivrs->header);
+ unsigned long current = (unsigned long)ivrs + sizeof(acpi_ivrs_t);
+
+ memset((void *)ivrs, 0, sizeof(acpi_ivrs_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "IVRS", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_ivrs_t);
+ header->revision = 1; /* ACPI 1.0: N/A, ACPI 2.0/3.0/4.0: 1 */
+
+ current = acpi_fill_ivrs(ivrs, current);
+
+ /* (Re)calculate length and checksum. */
+ header->length = current - (unsigned long)ivrs;
+ header->checksum = acpi_checksum((void *)ivrs, header->length);
+}
+
unsigned long acpi_write_hpet(device_t device, unsigned long current, acpi_rsdp_t *rsdp)
{
acpi_hpet_t *hpet;
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index 28f650c..7d583b8 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -4,6 +4,7 @@
* Copyright (C) 2004 SUSE LINUX AG
* Copyright (C) 2004 Nick Barker
* Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
* (Written by Stefan Reinauer <stepan@coresystems.de>)
*
* This program is free software; you can redistribute it and/or modify
@@ -194,6 +195,32 @@ typedef struct acpi_madt {
u32 flags; /* Multiple APIC flags */
} __attribute__ ((packed)) acpi_madt_t;
+typedef struct acpi_ivrs_info {
+} __attribute__ ((packed)) acpi_ivrs_info_t;
+
+/* IVRS IVHD (I/O Virtualization Hardware Definition Block) */
+typedef struct acpi_ivrs_ivhd {
+ uint8_t type;
+ uint8_t flags;
+ uint16_t length;
+ uint16_t device_id;
+ uint16_t capability_offset;
+ uint32_t iommu_base_low;
+ uint32_t iommu_base_high;
+ uint16_t pci_segment_group;
+ uint16_t iommu_info;
+ uint32_t efr;
+ uint8_t entry[0];
+} __attribute__ ((packed)) acpi_ivrs_ivhd_t;
+
+/* IVRS (I/O Virtualization Reporting Structure) */
+typedef struct acpi_ivrs {
+ struct acpi_table_header header;
+ uint32_t iv_info;
+ uint32_t reserved[2];
+ struct acpi_ivrs_ivhd ivhd;
+} __attribute__ ((packed)) acpi_ivrs_t;
+
enum dev_scope_type {
SCOPE_PCI_ENDPOINT = 1,
SCOPE_PCI_SUB = 2,
@@ -497,6 +524,7 @@ unsigned long fw_cfg_acpi_tables(unsigned long start);
unsigned long write_acpi_tables(unsigned long addr);
unsigned long acpi_fill_madt(unsigned long current);
unsigned long acpi_fill_mcfg(unsigned long current);
+unsigned long acpi_fill_ivrs_ioapic(acpi_ivrs_t* ivrs, unsigned long current);
void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id);
void acpi_create_fadt(acpi_fadt_t *fadt,acpi_facs_t *facs, void *dsdt);
#if IS_ENABLED(CONFIG_COMMON_FADT)
@@ -535,6 +563,9 @@ void acpi_create_srat(acpi_srat_t *srat,
void acpi_create_slit(acpi_slit_t *slit,
unsigned long (*acpi_fill_slit)(unsigned long current));
+void acpi_create_ivrs(acpi_ivrs_t *ivrs,
+ unsigned long (*acpi_fill_ivrs)(acpi_ivrs_t* ivrs_struct, unsigned long current));
+
#if ENV_RAMSTAGE
void acpi_create_hpet(acpi_hpet_t *hpet);
unsigned long acpi_write_hpet(device_t device, unsigned long start, acpi_rsdp_t *rsdp);
--
1.9.1
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