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config tool: ivshmem: new design for ivshmem

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According to the new design of DX, implement ivshmem configuration
and generate hv related files.

Tracked-On: #6690
Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Yuanyuan Zhao
2022-02-14 06:33:21 +00:00
committed by acrnsi-robot
parent 3d5c3c4754
commit 9670caabf0
8 changed files with 138 additions and 89 deletions
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30
misc/config_tools/static_allocators/lib/lib.py
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@@ -89,29 +89,35 @@ def get_native_ttys():
native_ttys[tty] = tmp_dic
return native_ttys
def get_shmem_regions(etree):
ivshmem_enabled = common.get_node("//IVSHMEM_ENABLED/text()", etree)
def get_ivshmem_regions_by_tree(etree):
ivshmem_enabled = get_ivshmem_enabled_by_tree(etree)
if ivshmem_enabled == 'n':
return {}
# <IVSHMEM_REGION> format is shm_name, shm_size, VM IDs
# example: hv:/shm_region_0, 2, 0:2
ivshmem_regions = etree.xpath("//IVSHMEM_REGION")
shmem_regions = {}
for idx in range(len(ivshmem_regions)):
shm_string = ivshmem_regions[idx].text
if shm_string is None:
shm_name = ivshmem_regions[idx].get('name')
if shm_name is None:
continue
shm_string_list = shm_string.split(',')
shm_name = shm_string_list[0].strip()
shm_size = shm_string_list[1].strip()
vmid_list = [vm_id.strip() for vm_id in shm_string_list[2].split(':')]
for vm_id in vmid_list:
shm_size = common.get_node("./IVSHMEM_SIZE/text()", ivshmem_regions[idx])
shm_vm_list = ivshmem_regions[idx].xpath(".//IVSHMEM_VM")
for shm_vm in shm_vm_list:
vm_name = common.get_node("./VM_NAME/text()", shm_vm)
vm_id = common.get_node(f"//vm[name = '{vm_name}']/@id", etree)
vbdf = common.get_node("./VBDF/text()", shm_vm)
if vm_id not in shmem_regions:
shmem_regions[vm_id] = {}
shmem_regions[vm_id][shm_name] = {'id' : str(idx), 'size' : shm_size}
shmem_regions[vm_id][shm_name] = {'id' : str(idx), 'size' : shm_size, 'vbdf' : vbdf}
return shmem_regions
def get_ivshmem_enabled_by_tree(etree):
ivshmem_vms = etree.xpath("//IVSHMEM_VM")
shmem_enabled = 'n'
if len(ivshmem_vms) != 0:
shmem_enabled = 'y'
return shmem_enabled
def is_pre_launched_vm(vm_type):
if vm_type in PRE_LAUNCHED_VMS_TYPE:
return True