diff options
| -rw-r--r-- | interface-definitions/system_option.xml.in | 146 | ||||
| -rwxr-xr-x | smoketest/scripts/cli/test_system_option.py | 32 | ||||
| -rwxr-xr-x | src/conf_mode/system_option.py | 45 | ||||
| -rwxr-xr-x | src/validators/cpu | 43 |
4 files changed, 264 insertions, 2 deletions
diff --git a/interface-definitions/system_option.xml.in b/interface-definitions/system_option.xml.in index c9240064f..c0ea958a2 100644 --- a/interface-definitions/system_option.xml.in +++ b/interface-definitions/system_option.xml.in @@ -37,7 +37,145 @@ <help>Kernel boot parameters</help> </properties> <children> - <leafNode name="disable-mitigations"> + <node name="cpu"> + <properties> + <help>CPU settings</help> + </properties> + <children> + <leafNode name="disable-nmi-watchdog"> + <properties> + <help>Disable the NMI watchdog for detecting hard CPU lockups</help> + <valueless/> + </properties> + </leafNode> + <leafNode name="isolate-cpus"> + <properties> + <help>Isolate specified CPUs from the scheduler</help> + <valueHelp> + <format>u32:0-511</format> + <description>CPU core</description> + </valueHelp> + <valueHelp> + <format><start-end></format> + <description>CPU core range (examples: "1", "4-7", "1,2-5,7")</description> + </valueHelp> + <constraint> + <validator name="cpu"/> + </constraint> + </properties> + </leafNode> + <leafNode name="nohz-full"> + <properties> + <help>Enable full tickless mode for specified CPUs</help> + <valueHelp> + <format>u32:0-511</format> + <description>CPU core</description> + </valueHelp> + <valueHelp> + <format><start-end></format> + <description>CPU core range (examples: "1", "4-7", "1,2-5,7")</description> + </valueHelp> + <constraint> + <validator name="cpu"/> + </constraint> + </properties> + </leafNode> + <leafNode name="rcu-no-cbs"> + <properties> + <help>Offload Read-Copy-Update (RCU) callback processing to specified CPUs</help> + <valueHelp> + <format>u32:0-511</format> + <description>CPU core</description> + </valueHelp> + <valueHelp> + <format><start-end></format> + <description>CPU core range (examples: "1", "4-7", "1,2-5,7")</description> + </valueHelp> + <constraint> + <validator name="cpu"/> + </constraint> + </properties> + </leafNode> + </children> + </node> + <node name="memory"> + <properties> + <help>Memory settings</help> + </properties> + <children> + <leafNode name="disable-numa-balancing"> + <properties> + <help>Disable automatic NUMA memory balancing</help> + <valueless/> + </properties> + </leafNode> + <leafNode name="default-hugepage-size"> + <properties> + <help>Set default hugepage size (e.g., 2M, 1G)</help> + <completionHelp> + <list>2M 1G</list> + </completionHelp> + <valueHelp> + <format>2M</format> + <description>2 megabytes</description> + </valueHelp> + <valueHelp> + <format>1G</format> + <description>1 gigabyte</description> + </valueHelp> + <constraint> + <regex>(2M|1G)</regex> + </constraint> + </properties> + </leafNode> + <tagNode name="hugepage-size"> + <properties> + <help>Set hugepage size for allocation (e.g., 2M, 1G)</help> + <completionHelp> + <list>2M 1G</list> + </completionHelp> + <valueHelp> + <format>2M</format> + <description>2 megabytes</description> + </valueHelp> + <valueHelp> + <format>1G</format> + <description>1 gigabyte</description> + </valueHelp> + <constraint> + <regex>(2M|1G)</regex> + </constraint> + </properties> + <children> + <leafNode name="hugepage-count"> + <properties> + <help>Allocate number of hugepages for system use</help> + <valueHelp> + <format>u32</format> + <description>Number of hugepages</description> + </valueHelp> + <constraint> + <validator name="numeric" argument="--range 1-100000"/> + </constraint> + </properties> + </leafNode> + </children> + </tagNode> + </children> + </node> + <leafNode name="disable-hpet"> + <properties> + <help>Disable High Precision Event Timer (HPET)</help> + <valueless/> + </properties> + </leafNode> + <leafNode name="disable-mce"> + <properties> + <help>Disable Machine Check Exceptions (MCE) reporting and handling</help> + <valueless/> + </properties> + </leafNode> + <leafNode name="disable-mitigations"> <properties> <help>Disable all optional CPU mitigations</help> <valueless/> @@ -69,6 +207,12 @@ </valueHelp> </properties> </leafNode> + <leafNode name="disable-softlockup"> + <properties> + <help>Disable soft lockup detector for kernel threads</help> + <valueless/> + </properties> + </leafNode> <leafNode name="quiet"> <properties> <help>Disable most log messages</help> diff --git a/smoketest/scripts/cli/test_system_option.py b/smoketest/scripts/cli/test_system_option.py index 4daa812c0..c7f8c1f3e 100755 --- a/smoketest/scripts/cli/test_system_option.py +++ b/smoketest/scripts/cli/test_system_option.py @@ -102,9 +102,28 @@ class TestSystemOption(VyOSUnitTestSHIM.TestCase): def test_kernel_options(self): amd_pstate_mode = 'active' - + isolate_cpus = '1,2,3' + nohz_full = '2' + rcu_no_cbs = '1,2,4-5' + default_hp_size = '2M' + hp_size_1g = '1G' + hp_size_2m = '2M' + hp_count_1g = '2' + hp_count_2m = '512' + + self.cli_set(['system', 'option', 'kernel', 'cpu', 'disable-nmi-watchdog']) + self.cli_set(['system', 'option', 'kernel', 'cpu', 'isolate-cpus', isolate_cpus]) + self.cli_set(['system', 'option', 'kernel', 'cpu', 'nohz-full', nohz_full]) + self.cli_set(['system', 'option', 'kernel', 'cpu', 'rcu-no-cbs', rcu_no_cbs]) + self.cli_set(['system', 'option', 'kernel', 'disable-hpet']) + self.cli_set(['system', 'option', 'kernel', 'disable-mce']) self.cli_set(['system', 'option', 'kernel', 'disable-mitigations']) self.cli_set(['system', 'option', 'kernel', 'disable-power-saving']) + self.cli_set(['system', 'option', 'kernel', 'disable-softlockup']) + self.cli_set(['system', 'option', 'kernel', 'memory', 'disable-numa-balancing']) + self.cli_set(['system', 'option', 'kernel', 'memory', 'default-hugepage-size', default_hp_size]) + self.cli_set(['system', 'option', 'kernel', 'memory', 'hugepage-size', hp_size_1g, 'hugepage-count', hp_count_1g]) + self.cli_set(['system', 'option', 'kernel', 'memory', 'hugepage-size', hp_size_2m, 'hugepage-count', hp_count_2m]) self.cli_set(['system', 'option', 'kernel', 'quiet']) self.cli_set(['system', 'option', 'kernel', 'amd-pstate-driver', amd_pstate_mode]) @@ -121,6 +140,17 @@ class TestSystemOption(VyOSUnitTestSHIM.TestCase): self.assertIn(' mitigations=off', tmp) self.assertIn(' intel_idle.max_cstate=0 processor.max_cstate=1', tmp) self.assertIn(' quiet', tmp) + self.assertIn(' nmi_watchdog=0', tmp) + self.assertIn(' hpet=disable', tmp) + self.assertIn(' mce=off', tmp) + self.assertIn(' nosoftlockup', tmp) + self.assertIn(f' isolcpus={isolate_cpus}', tmp) + self.assertIn(f' nohz_full={nohz_full}', tmp) + self.assertIn(f' rcu_nocbs={rcu_no_cbs}', tmp) + self.assertIn(f' default_hugepagesz={default_hp_size}', tmp) + self.assertIn(f' hugepagesz={hp_size_1g} hugepages={hp_count_1g}', tmp) + self.assertIn(f' hugepagesz={hp_size_2m} hugepages={hp_count_2m}', tmp) + self.assertIn(' numa_balancing=disable', tmp) if cpu_vendor == 'AuthenticAMD': self.assertIn(f' initcall_blacklist=acpi_cpufreq_init amd_pstate={amd_pstate_mode}', tmp) diff --git a/src/conf_mode/system_option.py b/src/conf_mode/system_option.py index 3d76a1eaa..5acad6599 100755 --- a/src/conf_mode/system_option.py +++ b/src/conf_mode/system_option.py @@ -127,6 +127,9 @@ def generate(options): # occurance is used for having the appropriate options passed to GRUB # when re-configuring options on the CLI. cmdline_options = [] + kernel_opts = options.get('kernel', {}) + k_cpu_opts = kernel_opts.get('cpu', {}) + k_memory_opts = kernel_opts.get('memory', {}) if 'kernel' in options: if 'disable_mitigations' in options['kernel']: cmdline_options.append('mitigations=off') @@ -138,6 +141,48 @@ def generate(options): f'initcall_blacklist=acpi_cpufreq_init amd_pstate={mode}') if 'quiet' in options['kernel']: cmdline_options.append('quiet') + + if 'disable_hpet' in kernel_opts: + cmdline_options.append('hpet=disable') + + if 'disable_mce' in kernel_opts: + cmdline_options.append('mce=off') + + if 'disable_softlockup' in kernel_opts: + cmdline_options.append('nosoftlockup') + + # CPU options + isol_cpus = k_cpu_opts.get('isolate_cpus') + if isol_cpus: + cmdline_options.append(f'isolcpus={isol_cpus}') + + nohz_full = k_cpu_opts.get('nohz_full') + if nohz_full: + cmdline_options.append(f'nohz_full={nohz_full}') + + rcu_nocbs = k_cpu_opts.get('rcu_no_cbs') + if rcu_nocbs: + cmdline_options.append(f'rcu_nocbs={rcu_nocbs}') + + if 'disable_nmi_watchdog' in k_cpu_opts: + cmdline_options.append('nmi_watchdog=0') + + # Memory options + if 'disable_numa_balancing' in k_memory_opts: + cmdline_options.append('numa_balancing=disable') + + default_hp_size = k_memory_opts.get('default_hugepage_size') + if default_hp_size: + cmdline_options.append(f'default_hugepagesz={default_hp_size}') + + hp_sizes = k_memory_opts.get('hugepage_size') + if hp_sizes: + for size, settings in hp_sizes.items(): + cmdline_options.append(f'hugepagesz={size}') + count = settings.get('hugepage_count') + if count: + cmdline_options.append(f'hugepages={count}') + grub_util.update_kernel_cmdline_options(' '.join(cmdline_options)) return None diff --git a/src/validators/cpu b/src/validators/cpu new file mode 100755 index 000000000..959a49248 --- /dev/null +++ b/src/validators/cpu @@ -0,0 +1,43 @@ +#!/usr/bin/python3 + +import re +import sys + +MAX_CPU = 511 + + +def validate_isolcpus(value): + pattern = re.compile(r'^(\d{1,3}(-\d{1,3})?)(,(\d{1,3}(-\d{1,3})?))*$') + if not pattern.fullmatch(value): + return False + + flat_list = [] + for part in value.split(','): + if '-' in part: + start, end = map(int, part.split('-')) + if start > end or start < 0 or end > MAX_CPU: + return False + flat_list.extend(range(start, end + 1)) + else: + num = int(part) + if num < 0 or num > MAX_CPU: + return False + flat_list.append(num) + + for i in range(1, len(flat_list)): + if flat_list[i] <= flat_list[i - 1]: + return False + + return True + + +if __name__ == "__main__": + if len(sys.argv) != 2: + print("Usage: python3 cpu.py <cpu_list>") + sys.exit(1) + + input_value = sys.argv[1] + if validate_isolcpus(input_value): + sys.exit(0) + else: + sys.exit(1) |