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board_inspector/acpiparser: enable parsing RTCT v2

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This patch adds support to parse RTCT v2 using the refined board XML
schema. The major changes include:

 - Add the RTCT v2 parser in the acpiparser module. The version of an RTCT
   is detected automatically to choose the right parser.
 - Extract software SRAM capabilities of caches into the board XML.
 - Move the logic that determines the software SRAM base address for the
   pre-launched VM to the static allocator of GPAs.
 - Generate software SRAM related macros into misc_cfg.h when necessary.

Tracked-On: #6020
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Junjie Mao
2021-05-10 13:20:50 +08:00
committed by wenlingz
parent c0fef0b1fb
commit 99f15a27c2
8 changed files with 291 additions and 83 deletions
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4
misc/config_tools/board_inspector/legacy/board_parser.py
View File

@@ -14,7 +14,6 @@ import acpi
import clos
import misc
import parser_lib
import rtct
OUTPUT = "./out/"
PY_CACHE = "__pycache__"
@@ -135,9 +134,6 @@ if __name__ == '__main__':
# Generate misc info
misc.generate_info(BOARD_INFO)
# Generate pseudo RAM info
rtct.generate_info(BOARD_INFO)
with open(BOARD_INFO, 'a+') as f:
print("</acrn-config>", file=f)

43
misc/config_tools/board_inspector/legacy/rtct.py
View File

@@ -1,43 +0,0 @@
# Copyright (C) 2021 Intel Corporation. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
import os
from acpiparser import parse_rtct
import acpiparser.rtct
import parser_lib
def dump_ssram(config):
print("\t<RTCT>", file=config)
rtct = None
if os.path.exists("/sys/firmware/acpi/tables/PTCT"):
rtct = parse_rtct(path="/sys/firmware/acpi/tables/PTCT")
elif os.path.exists("/sys/firmware/acpi/tables/RTCT"):
rtct = parse_rtct(path="/sys/firmware/acpi/tables/RTCT")
if rtct:
for entry in rtct.entries:
if entry.type == acpiparser.rtct.ACPI_RTCT_TYPE_SoftwareSRAM:
print("\t\t<SoftwareSRAM>", file=config)
print("\t\t\t<cache_level>{}</cache_level>".format(entry.cache_level), file=config)
print("\t\t\t<base>{}</base>".format(hex(entry.base)), file=config)
print("\t\t\t<ways>{}</ways>".format(hex(entry.ways)), file=config)
print("\t\t\t<size>{}</size>".format(hex(entry.size)), file=config)
for apic_id in entry.apic_id_tbl:
print("\t\t\t<apic_id>{}</apic_id>".format(hex(apic_id)), file=config)
print("\t\t</SoftwareSRAM>", file=config)
else:
parser_lib.print_yel("No PTCT or RTCT found. The platform may not support pseudo RAM.")
print("\t</RTCT>", file=config)
print("", file=config)
def generate_info(board_info):
"""Get system pseudo RAM information
:param board_info: this is the file which stores the hardware board information
"""
with open(board_info, 'a+') as config:
dump_ssram(config)