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https://github.com/projectacrn/acrn-hypervisor.git
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16a2af5715
ACRN builds mptable for pre-launched VMs. It uses CONFIG_PARTITION_MODE to compile mptable source code and related support. This patch removes the macro and checks if the type of VM is pre-launched to build mptable. Tracked-On: #2941 Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
152 lines
3.5 KiB
C
152 lines
3.5 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/************************************************************************
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*
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* FILE NAME
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*
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* mptable.h
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*
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* DESCRIPTION
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*
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* This file defines API and extern variable for VM mptable info
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*
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************************************************************************/
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/**********************************/
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/* EXTERNAL VARIABLES */
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/**********************************/
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#ifndef MPTABLE_H
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#define MPTABLE_H
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#define MPTABLE_BASE 0xF0000U
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/*
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* floating pointer length + maximum length of configuration table
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* ACRN uses contiguous guest memory from 0xF0000 to place floating pointer
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* structure and config table. Maximum length of config table is 64K. So the
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* maximum length of combined floating pointer and config table can go up to
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* 64K + 16 bytes.Since we are left with only 64K from 0xF0000 to 0x100000(1MB)
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* max length is limited to 64K.
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*/
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#define MPTABLE_MAX_LENGTH 65536U
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#define LAPIC_VERSION_NUM 16U
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#define MP_SPECREV 4U
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#define MPFP_SIG "_MP_"
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/* Configuration header defines */
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#define MPCH_SIG "PCMP"
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#define MPCH_OEMID "ACRN "
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#define MPCH_OEMID_LEN 8U
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#define MPCH_PRODID "Hypervisor "
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#define MPCH_PRODID_LEN 12U
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/* Processor entry defines */
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#define MPEP_SIG_FAMILY 6U
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#define MPEP_SIG_MODEL 26U
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#define MPEP_SIG_STEPPING 5U
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#define MPEP_SIG \
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((MPEP_SIG_FAMILY << 8U) | \
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(MPEP_SIG_MODEL << 4U) | \
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(MPEP_SIG_STEPPING))
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#define MPEP_FEATURES 0xBFEBFBFFU /* XXX Intel i7 */
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/* Number of local intr entries */
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#define MPEII_NUM_LOCAL_IRQ 2U
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/* Bus entry defines */
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#define MPE_NUM_BUSES 2U
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#define MPE_BUSNAME_LEN 6U
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#define MPE_BUSNAME_ISA "ISA "
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#define MPE_BUSNAME_PCI "PCI "
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/* Base table entries */
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#define MPCT_ENTRY_PROCESSOR 0U
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#define MPCT_ENTRY_BUS 1U
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#define MPCT_ENTRY_LOCAL_INT 4U
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#define PROCENTRY_FLAG_EN 0x01U
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#define PROCENTRY_FLAG_BP 0x02U
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#define INTENTRY_TYPE_NMI 1U
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#define INTENTRY_TYPE_EXTINT 3U
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#define INTENTRY_FLAGS_POLARITY_CONFORM 0x0U
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#define INTENTRY_FLAGS_TRIGGER_CONFORM 0x0U
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/* MP Floating Pointer Structure */
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struct mpfps {
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uint8_t signature[4];
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uint32_t pap;
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uint8_t length;
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uint8_t spec_rev;
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uint8_t checksum;
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uint8_t config_type;
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uint8_t mpfb2;
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uint8_t mpfb3;
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uint8_t mpfb4;
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uint8_t mpfb5;
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} __packed;
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/* MP Configuration Table Header */
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struct mpcth {
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uint8_t signature[4];
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uint16_t base_table_length;
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uint8_t spec_rev;
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uint8_t checksum;
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uint8_t oem_id[8];
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uint8_t product_id[12];
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uint32_t oem_table_pointer;
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uint16_t oem_table_size;
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uint16_t entry_count;
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uint32_t apic_address;
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uint16_t extended_table_length;
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uint8_t extended_table_checksum;
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uint8_t reserved;
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} __packed;
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struct proc_entry {
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uint8_t type;
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uint8_t apic_id;
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uint8_t apic_version;
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uint8_t cpu_flags;
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uint32_t cpu_signature;
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uint32_t feature_flags;
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uint32_t reserved1;
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uint32_t reserved2;
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} __packed;
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struct bus_entry {
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uint8_t type;
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uint8_t bus_id;
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uint8_t bus_type[6];
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} __packed;
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struct int_entry {
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uint8_t type;
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uint8_t int_type;
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uint16_t int_flags;
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uint8_t src_bus_id;
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uint8_t src_bus_irq;
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uint8_t dst_apic_id;
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uint8_t dst_apic_int;
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} __packed;
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struct mptable_info {
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struct mpfps mpfp;
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struct mpcth mpch;
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struct bus_entry bus_entry_array[MPE_NUM_BUSES];
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struct int_entry int_entry_array[MPEII_NUM_LOCAL_IRQ];
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struct proc_entry proc_entry_array[CONFIG_MAX_PCPU_NUM];
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};
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int32_t mptable_build(struct acrn_vm *vm);
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#endif /* MPTABLE_H */
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