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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/arch/x86/configs/nuc7i7dnb/platform_acpi_info.h
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@@ -39,6 +39,9 @@
#define RESET_REGISTER_SPACE_ID SPACE_SYSTEM_IO
#define RESET_REGISTER_VALUE 0x6U
/* PCI mmcfg base of MCFG */
#define DEFAULT_PCI_MMCFG_BASE 0xE0000000UL
/* DRHD of DMAR */
#define DRHD_COUNT 2U