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acrn-config: Extend ve820 generation script for sizes gt 512 MB

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Current ve820 generation script assumes the size of pre-launched
VM memory is less than or equal to 512 MB (Must be the assumption
of logical partition scenario as such).
This patch extends the script to handle pre-launched VM memory
sizes greater than 512 MB.

Tracked-On: #4182
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
This commit is contained in:
Sainath Grandhi 2019-12-02 00:09:17 -08:00 committed by wenlingz
parent ba5105cb53
commit 502e60237c
1 changed files with 25 additions and 6 deletions
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29
misc/acrn-config/board_config/ve820_c.py
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@ -7,7 +7,7 @@ import sys
import board_cfg_lib
TOTAL_MEM_SIZE = 4 * 1024 * 1024 * 1024
FOUR_GBYTE = 4 * 1024 * 1024 * 1024
LOW_MEM_TO_PCI_HOLE = 0x20000000
@ -22,18 +22,27 @@ def ve820_per_launch(config, hpa_size):
board_name = board_cfg_lib.undline_name(board_name)
high_mem_hpa_len = 0x0
low_mem_to_pci_hole_len = '0xA0000000'
low_mem_to_pci_hole = '0x20000000'
pci_hole_addr = '0xe0000000'
pci_hole_len = '0x20000000'
start_low_hpa = 0x100000
hpa_len = int(hpa_size, 16) - 1 * 1024 * 1024
if (int(hpa_size, 16) <= 512 * 1024 * 1024):
low_mem_hpa_len = int(hpa_size, 16) - 1 * 1024 * 1024
else:
low_mem_hpa_len = 511 * 1024 * 1024
high_mem_hpa_len = int(hpa_size, 16) - 512 * 1024 * 1024
# pre_launch memroy: mem_size is the ve820 length
print("#include <e820.h>", file=config)
print("#include <vm.h>", file=config)
print("", file=config)
if (high_mem_hpa_len == 0):
print("#define VE820_ENTRIES_{}\t{}U".format(board_name, 5), file=config)
else:
print("#define VE820_ENTRIES_{}\t{}U".format(board_name, 6), file=config)
print("static const struct e820_entry ve820_entry[{}] = {{".format(
"VE820_ENTRIES_{}".format(board_name)), file=config)
print("\t{\t/* usable RAM under 1MB */", file=config)
@ -54,7 +63,7 @@ def ve820_per_launch(config, hpa_size):
print("\t\t.baseaddr = {}UL,\t\t/* 1MB */".format(
hex(start_low_hpa)), file=config)
print("\t\t.length = {}UL,\t/* {}MB */".format(
hex(hpa_len), hpa_len / 1024 / 1024), file=config)
hex(low_mem_hpa_len), low_mem_hpa_len / 1024 / 1024), file=config)
print("\t\t.type = E820_TYPE_RAM", file=config)
print("\t},", file=config)
@ -68,14 +77,24 @@ def ve820_per_launch(config, hpa_size):
print("\t\t.type = E820_TYPE_RESERVED", file=config)
print("\t},", file=config)
print("", file=config)
print("\t{{\t/* between PCI hole and {}GB */".format(
TOTAL_MEM_SIZE / 1024 / 1024 / 1024), file=config)
print("\t{\t/* between PCI hole and 4 GB */", file=config)
print("\t\t.baseaddr = {}UL,\t/* {}GB */".format(
hex(int(pci_hole_addr, 16)), int(pci_hole_addr, 16) / 1024 / 1024 / 1024), file=config)
print("\t\t.length = {}UL,\t/* {}MB */".format(
hex(int(pci_hole_len, 16)), int(pci_hole_len, 16) / 1024 / 1024), file=config)
print("\t\t.type = E820_TYPE_RESERVED", file=config)
print("\t},", file=config)
print("", file=config)
if (high_mem_hpa_len != 0):
print("\t{\t/* high mem after 4GB*/", file=config)
print("\t\t.baseaddr = {}UL,\t/* 4 GB */".format(
hex(FOUR_GBYTE)), file=config)
print("\t\t.length = {}UL,\t/* {}MB */".format(
hex(high_mem_hpa_len), high_mem_hpa_len / 1024 / 1024), file=config)
print("\t\t.type = E820_TYPE_RAM", file=config)
print("\t},", file=config)
print("", file=config)
print("};", file=config)
print("", file=config)
print("/**", file=config)