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acrn-config: Generate target xml file with multiple RDT resources

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This patch adds support for storing multiple RDT resource
and its max supported clos value in the target xml file under
clos subsection.

Tracked-On: #3715
Signed-off-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
Acked-by: Victor Sun <victor.sun@intel.com>
This commit is contained in:
Vijay Dhanraj 2019-09-20 14:29:41 -07:00 committed by wenlingz
parent a63f81097d
commit 4a007cc3a9
1 changed files with 37 additions and 31 deletions
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68
misc/acrn-config/target/clos.py
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@ -5,7 +5,7 @@
import parser_lib import parser_lib
CACHE_TYPE = { RDT_TYPE = {
"L2":4, "L2":4,
"L3":2 "L3":2
} }
@ -16,12 +16,11 @@ def dump_cpuid_reg(cmd, reg):
:param cmd: command what can be executed in shell :param cmd: command what can be executed in shell
:param reg: register name :param reg: register name
""" """
cache_t = ''
res = parser_lib.cmd_execute(cmd) res = parser_lib.cmd_execute(cmd)
if reg == "eax":
idx = 2
if reg == "ebx": if reg == "ebx":
idx = 3 idx = 3
if reg == "edx": if reg == "edx":
idx = 5 idx = 5
@ -36,52 +35,59 @@ def dump_cpuid_reg(cmd, reg):
reg_value = line.split()[idx].split('=')[1] reg_value = line.split()[idx].split('=')[1]
if reg == "ebx": if reg == "eax":
if int(reg_value, 16) & CACHE_TYPE['L2'] != 0: eax_reg_val = int(reg_value, 16) + 1
cache_t = "L2" res_info = hex((1 << eax_reg_val) - 1)
break
elif reg == "ebx":
res_info = []
if int(reg_value, 16) & RDT_TYPE['L2'] != 0:
res_info.append("L2")
break break
elif int(reg_value, 16) & CACHE_TYPE['L3'] != 0: if int(reg_value, 16) & RDT_TYPE['L3'] != 0:
cache_t = "L3" res_info.append("L3")
break
else:
cache_t = False
break break
elif reg == "edx": elif reg == "edx":
cache_t = int(reg_value, 16) + 1 res_info = int(reg_value, 16) + 1
break break
return cache_t return res_info
def get_clos_info(): def get_clos_info():
"""Get clos max and clos cache type""" """Get max clos, mask supported and clos cache type"""
clos_max = 0 rdt_res = []
clos_cache = False rdt_clos_max = []
rdt_mask_max = []
cmd = "cpuid -r -l 0x10" cmd = "cpuid -r -l 0x10"
clos_cache = dump_cpuid_reg(cmd, "ebx") rdt_res = dump_cpuid_reg(cmd, "ebx")
if clos_cache == "L2": if len(rdt_res) == 0:
cmd = "cpuid -r -l 0x10 --subleaf 2" parser_lib.print_yel("Resource Allocation is not supported!")
elif clos_cache == "L3":
cmd = "cpuid -r -l 0x10 --subleaf 1"
else: else:
clos_max = 0 for i in range(len(rdt_res)):
parser_lib.print_yel("CLOS is not supported!") if rdt_res[i] == "L2":
return (clos_cache, clos_max) cmd = "cpuid -r -l 0x10 --subleaf 2"
rdt_clos_max.append(dump_cpuid_reg(cmd, "edx"))
rdt_mask_max.append(dump_cpuid_reg(cmd, "eax"))
if rdt_res[i] == "L3":
cmd = "cpuid -r -l 0x10 --subleaf 1"
rdt_clos_max.append(dump_cpuid_reg(cmd, "edx"))
rdt_mask_max.append(dump_cpuid_reg(cmd, "eax"))
clos_max = dump_cpuid_reg(cmd, "edx") return (rdt_res, rdt_clos_max, rdt_mask_max)
return (clos_cache, clos_max)
def generate_info(board_info): def generate_info(board_info):
"""Generate clos information """Generate clos information
:param board_info: this is the file which stores the hardware board information :param board_info: this is the file which stores the hardware board information
""" """
(clos_cache, clos_max) = get_clos_info() (rdt_res, rdt_res_clos_max, rdt_res_mask_max) = get_clos_info()
with open(board_info, 'a+') as config: with open(board_info, 'a+') as config:
print("\t<CLOS_INFO>", file=config) print("\t<CLOS_INFO>", file=config)
print("\tclos supported by cache:{}".format(clos_cache), file=config) if ((len(rdt_res) != 0) and (len(rdt_res_clos_max) != 0)):
print("\tclos max:{}".format(clos_max), file=config) print("\trdt resources supported:", ', '.join(rdt_res), file=config)
print("\trdt resource clos max:",str(rdt_res_clos_max).strip('[]'), file=config)
print("\trdt resource mask max:",str(rdt_res_mask_max).strip('[]'), file=config)
print("\t</CLOS_INFO>\n", file=config) print("\t</CLOS_INFO>\n", file=config)