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HV: parse default pci mmcfg base

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The default PCI mmcfg base is stored in ACPI MCFG table, when
CONFIG_ACPI_PARSE_ENABLED is set, acpi_fixup() function will
parse and fix up the platform mmcfg base in ACRN boot stage;
when it is not set, platform mmcfg base will be initialized to
DEFAULT_PCI_MMCFG_BASE which generated by acrn-config tool;

Please note we will not support platform which has multiple PCI
segment groups.

Tracked-On: #4157

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Victor Sun
2019-11-27 13:39:52 +08:00
committed by wenlingz
parent 80a7281f1e
commit 15da33d8af
8 changed files with 72 additions and 9 deletions
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3
hypervisor/boot/guest/vboot_wrapper.c
View File

@@ -68,9 +68,6 @@ void init_vboot(void)
* initialized before calling other vboot_ops interface.
*/
vboot_ops->init();
#ifdef CONFIG_ACPI_PARSE_ENABLED
acpi_fixup();
#endif
}
/* @pre: vboot_ops != NULL */

10
hypervisor/boot/include/acpi.h
View File

@@ -36,13 +36,19 @@
#define OFFSET_WAKE_VECTOR_32 12U
#define OFFSET_WAKE_VECTOR_64 24U
/* MCFG field offsets */
#define OFFSET_MCFG_LENGTH 4U
#define OFFSET_MCFG_ENTRY0 44U
#define OFFSET_MCFG_ENTRY0_BASE 44U
#define OFFSET_MCFG_ENTRY1 60U
#define ACPI_SIG_FADT "FACP" /* Fixed ACPI Description Table */
#define ACPI_SIG_FACS 0x53434146U /* "FACS" */
#define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Ptr */
#define ACPI_SIG_XSDT "XSDT" /* Extended System Description Table */
#define ACPI_SIG_MADT "APIC" /* Multiple APIC Description Table */
#define ACPI_SIG_DMAR "DMAR"
#define ACPI_SIG_MCFG "MCFG" /* Memory Mapped Configuration table */
struct packed_gas {
uint8_t space_id;
@@ -200,7 +206,7 @@ uint16_t parse_madt(uint32_t lapic_id_array[CONFIG_MAX_PCPU_NUM]);
uint16_t parse_madt_ioapic(struct ioapic_info *ioapic_id_array);
#ifdef CONFIG_ACPI_PARSE_ENABLED
void acpi_fixup(void);
int32_t acpi_fixup(void);
#endif
#endif /* !ACPI_H */