avocado.utils.cpu: add tests for get_cpu_arch()

For a number of architectures, and a extension to the logic to check
for riscv and ARM v8 (AKA, aarch64) processors.

Reference: https://github.com/avocado-framework/avocado/pull/2589Signed-off-by: NCleber Rosa <crosa@redhat.com>

avocado/utils/cpu.py

@@ -129,10 +129,17 @@ def get_cpu_arch():
                   '|^bogomips per cpu|^max thread id)', 's390'),
                  ('^type', 'sparc64'),
                  ('^flags.*:.* lm .*', 'x86_64'),
-                 ('^flags', 'i386')]
+                 ('^flags', 'i386'),
+                 ('^hart\\s*: 1$', 'riscv')]
     cpuinfo = _get_cpu_info()
     for (pattern, arch) in cpu_table:
         if _list_matches(cpuinfo, pattern):
+            # ARM is a special situation, which matches both 32 bits
+            # (v7) and 64 bits (v8).
+            if arch == 'arm':
+                arm_v8_arch_name = 'aarch64'
+                if arm_v8_arch_name == platform.machine():
+                    return arm_v8_arch_name
             return arch
     return platform.machine()
 

selftests/unit/test_utils_cpu.py

@@ -26,7 +26,7 @@ class Cpu(unittest.TestCase):
 
     @unittest.skipUnless(recent_mock(),
                          "mock library version cannot (easily) patch open()")
-    def test_s390x(self):
+    def test_s390x_cpu_online(self):
         s390x = u"""vendor_id       : IBM/S390
 # processors    : 2
 bogomips per cpu: 2913.00
@@ -96,7 +96,7 @@ cpu MHz static  : 5504
 
     @unittest.skipUnless(recent_mock(),
                          "mock library version cannot (easily) patch open()")
-    def test_x86_64(self):
+    def test_x86_64_cpu_online(self):
         x86_64 = u"""processor	: 0
 vendor_id	: GenuineIntel
 cpu family	: 6
@@ -319,6 +319,210 @@ power management:
                             return_value=self._get_file_mock(x86_64)):
                 self.assertEqual(len(cpu.cpu_online_list()), 8)
 
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_i386(self):
+        cpu_output = u"""processor       : 0
+vendor_id       : GenuineIntel
+cpu family      : 6
+model           : 13
+model name      : Intel(R) Pentium(R) M processor 2.00GHz
+stepping        : 8
+microcode       : 0x20
+cpu MHz         : 2000.000
+cache size      : 2048 KB
+physical id     : 0
+siblings        : 1
+core id         : 0
+cpu cores       : 1
+apicid          : 0
+initial apicid  : 0
+fdiv_bug        : no
+f00f_bug        : no
+coma_bug        : no
+fpu             : yes
+fpu_exception   : yes
+cpuid level     : 2
+wp              : yes
+flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx bts cpuid est tm2
+bugs            : cpu_meltdown spectre_v1 spectre_v2
+bogomips        : 3990.09
+clflush size    : 64
+cache_alignment : 64
+address sizes   : 32 bits physical, 32 bits virtual
+power management:
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "i386")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_x86_64(self):
+        cpu_output = u"""processor       : 0
+vendor_id       : GenuineIntel
+cpu family      : 6
+model           : 60
+model name      : Intel(R) Core(TM) i7-4810MQ CPU @ 2.80GHz
+stepping        : 3
+microcode       : 0x24
+cpu MHz         : 1766.058
+cache size      : 6144 KB
+physical id     : 0
+siblings        : 8
+core id         : 0
+cpu cores       : 4
+apicid          : 0
+initial apicid  : 0
+fpu             : yes
+fpu_exception   : yes
+cpuid level     : 13
+wp              : yes
+flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm cpuid_fault epb invpcid_single pti tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt ibpb ibrs stibp dtherm ida arat pln pts
+bugs            : cpu_meltdown spectre_v1 spectre_v2
+bogomips        : 5586.93
+clflush size    : 64
+cache_alignment : 64
+address sizes   : 39 bits physical, 48 bits virtual
+power management:
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "x86_64")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_ppc64_power8(self):
+        cpu_output = u"""processor       : 88
+cpu             : POWER8E (raw), altivec supported
+clock           : 3325.000000MHz
+revision        : 2.1 (pvr 004b 0201)
+
+timebase        : 512000000
+platform        : PowerNV
+model           : 8247-21L
+machine         : PowerNV 8247-21L
+firmware        : OPAL v3
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "power8")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_ppc64_le_power8(self):
+        cpu_output = u"""processor       : 88
+cpu             : POWER8E (raw), altivec supported
+clock           : 3325.000000MHz
+revision        : 2.1 (pvr 004b 0201)
+
+timebase        : 512000000
+platform        : PowerNV
+model           : 8247-21L
+machine         : PowerNV 8247-21L
+firmware        : OPAL v3
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "power8")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_ppc64_le_power9(self):
+        cpu_output = u"""processor	: 20
+cpu		: POWER9 (raw), altivec supported
+clock		: 2050.000000MHz
+revision	: 1.0 (pvr 004e 0100)
+
+timebase	: 512000000
+platform	: PowerNV
+model		: 8375-42A
+machine		: PowerNV 8375-42A
+firmware	: OPAL
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "power9")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_s390(self):
+        cpu_output = u"""vendor_id       : IBM/S390
+# processors    : 2
+bogomips per cpu: 2913.00
+max thread id   : 0
+features        : esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs te sie
+facilities      : 0 1 2 3 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 31 32 33 34 35 36 37 40 41 42 43 44 45 46 47 48 49 50 51 52 57 64 65 66 67 68 69 70 71 72 73 75 76 77 78 81 82 131 132
+cache0          : level=1 type=Data scope=Private size=96K line_size=256 associativity=6
+cache1          : level=1 type=Instruction scope=Private size=64K line_size=256 associativity=4
+cache2          : level=2 type=Data scope=Private size=1024K line_size=256 associativity=8
+cache3          : level=2 type=Instruction scope=Private size=1024K line_size=256 associativity=8
+cache4          : level=3 type=Unified scope=Shared size=49152K line_size=256 associativity=12
+cache5          : level=4 type=Unified scope=Shared size=393216K line_size=256 associativity=24
+processor 0: version = 00,  identification = 3FC047,  machine = 2827
+processor 1: version = 00,  identification = 3FC047,  machine = 2827
+
+cpu number      : 0
+cpu MHz dynamic : 5504
+cpu MHz static  : 5504
+
+cpu number      : 1
+cpu MHz dynamic : 5504
+cpu MHz static  : 5504
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "s390")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_arm_v7(self):
+        cpu_output = u"""Processor       : ARMv7 Processor rev 2 (v7l)
+BogoMIPS        : 994.65
+Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3
+CPU implementer : 0x41
+CPU architecture: 7
+CPU variant     : 0x2
+CPU part        : 0xc08
+CPU revision    : 2
+
+Hardware        : herring
+Revision        : 0034
+Serial          : 3534268a5e0700ec
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "arm")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_arm_v8(self):
+        cpu_output = u"""processor       : 0
+BogoMIPS        : 200.00
+Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
+CPU implementer : 0x43
+CPU architecture: 8
+CPU variant     : 0x1
+CPU part        : 0x0a1
+CPU revision    : 1
+"""
+        with mock.patch('avocado.utils.cpu.platform.machine', return_value='aarch64'):
+            with mock.patch('avocado.utils.cpu.open',
+                            return_value=self._get_file_mock(cpu_output)):
+                self.assertEqual(cpu.get_cpu_arch(), "aarch64")
+
+    @unittest.skipUnless(recent_mock(),
+                         "mock library version cannot (easily) patch open()")
+    def test_cpu_arch_risc_v(self):
+        cpu_output = u"""hart	: 1
+isa	: rv64imafdc
+mmu	: sv39
+uarch	: sifive,rocket0
+"""
+        with mock.patch('avocado.utils.cpu.open',
+                        return_value=self._get_file_mock(cpu_output)):
+            self.assertEqual(cpu.get_cpu_arch(), "riscv")
+
 
 if __name__ == "__main__":
     unittest.main()