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misc: modify the HV start address

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The current code use a start address and hv_ram_size to find the start
address of acrn.bin, the start address is 32M which leaving too much
memory and will be load modules by grub, sometimes these modules will
override the HV log region.

This patch set the start address to 4M to avoid the above issue as much
as possible.

This algorithm depend on the board info, so the board XML should be
generate again if user change the SSRAM.

Tracked-On: #6690
Signed-off-by: Chenli Wei <chenli.wei@linux.intel.com>
This commit is contained in:
Chenli Wei 2022-06-08 15:53:21 +08:00 committed by acrnsi-robot
parent 7c80bfd86d
commit 4c56fa8ddb
1 changed files with 8 additions and 9 deletions
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17
misc/config_tools/static_allocators/hv_ram.py
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@ -31,20 +31,19 @@ def fn(board_etree, scenario_etree, allocation_etree):
print(e)
hv_ram_size += 2 * max(total_shm_size, 0x200000)
assert(hv_ram_size <= HV_RAM_SIZE_MAX)
# reseve 16M memory for hv sbuf, ramoops, etc.
reserved_ram = 0x1000000
# We recommend to put hv ram start address high than 0x2000000 to
# reduce memory conflict with GRUB/SOS Kernel.
hv_start_offset = 0x2000000
total_size = reserved_ram + hv_ram_size
# We recommend to put hv ram start address high than 0x400000 to
# reduce memory conflict with hv log.
hv_start_offset = 0x400000
for start_addr in list(board_cfg_lib.USED_RAM_RANGE):
if hv_start_offset <= start_addr < 0x80000000:
del board_cfg_lib.USED_RAM_RANGE[start_addr]
ram_range = board_cfg_lib.get_ram_range()
avl_start_addr = board_cfg_lib.find_avl_memory(ram_range, str(total_size), hv_start_offset)
hv_start_addr = int(avl_start_addr, 16) + int(hex(reserved_ram), 16)
avl_start_addr = board_cfg_lib.find_avl_memory(ram_range, str(hv_ram_size), hv_start_offset)
hv_start_addr = int(avl_start_addr, 16)
hv_start_addr = common.round_up(hv_start_addr, MEM_ALIGN)
board_cfg_lib.USED_RAM_RANGE[hv_start_addr] = total_size
board_cfg_lib.USED_RAM_RANGE[hv_start_addr] = hv_ram_size
common.append_node("/acrn-config/hv/MEMORY/HV_RAM_START", hex(hv_start_addr), allocation_etree)
common.append_node("/acrn-config/hv/MEMORY/HV_RAM_SIZE", hex(hv_ram_size), allocation_etree)