sysinfo: Fix reports on ARM

Due to a kernel commit (b4b8f770e), cpuinfo format has changed on
ARMs. Firstly, 'Processor: ...' may not be reported, it's
replaced by 'model name: ...'. Secondly, the "Processor" string
may occur in CPU name, e.g. 'ARMv7 Processor rev 5 (v7l)'.
Therefore, we must firstly look for 'model name' and then for
'Processor' if not found.
Moreover, lines in the cpuinfo file are shuffled, so we better
not manipulate the pointer to start of internal buffer as we may
lost some info.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

src/util/virsysinfo.c

@@ -289,16 +289,15 @@ virSysinfoParseProcessor(const char *base, virSysinfoDefPtr ret)
     virSysinfoProcessorDefPtr processor;
     char *processor_type = NULL;
 
-    if (!(tmp_base = strstr(base, "Processor")))
+    if (!(tmp_base = strstr(base, "model name")) &&
+        !(tmp_base = strstr(base, "Processor")))
         return 0;
 
-    base = tmp_base;
-    eol = strchr(base, '\n');
-    cur = strchr(base, ':') + 1;
+    eol = strchr(tmp_base, '\n');
+    cur = strchr(tmp_base, ':') + 1;
     virSkipSpaces(&cur);
     if (eol && VIR_STRNDUP(processor_type, cur, eol - cur) < 0)
         goto error;
-    base = cur;
 
     while ((tmp_base = strstr(base, "processor")) != NULL) {
         base = tmp_base;

tests/sysinfodata/arm-rpi2cpuinfo.data

+processor       : 0
+model name      : ARMv7 Processor rev 5 (v7l)
+BogoMIPS        : 38.40
+Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
+CPU implementer : 0x41
+CPU architecture: 7
+CPU variant     : 0x0
+CPU part        : 0xc07
+CPU revision    : 5
+
+processor       : 1
+model name      : ARMv7 Processor rev 5 (v7l)
+BogoMIPS        : 38.40
+Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
+CPU implementer : 0x41
+CPU architecture: 7
+CPU variant     : 0x0
+CPU part        : 0xc07
+CPU revision    : 5
+
+processor       : 2
+model name      : ARMv7 Processor rev 5 (v7l)
+BogoMIPS        : 38.40
+Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
+CPU implementer : 0x41
+CPU architecture: 7
+CPU variant     : 0x0
+CPU part        : 0xc07
+CPU revision    : 5
+
+processor       : 3
+model name      : ARMv7 Processor rev 5 (v7l)
+BogoMIPS        : 38.40
+Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
+CPU implementer : 0x41
+CPU architecture: 7
+CPU variant     : 0x0
+CPU part        : 0xc07
+CPU revision    : 5
+
+Hardware        : BCM2709
+Revision        : a01041
+Serial          : 00000000c9e9323d

tests/sysinfodata/arm-rpi2sysinfo.expect

+<sysinfo type='smbios'>
+  <processor>
+    <entry name='socket_destination'>0</entry>
+    <entry name='type'>ARMv7 Processor rev 5 (v7l)</entry>
+  </processor>
+  <processor>
+    <entry name='socket_destination'>1</entry>
+    <entry name='type'>ARMv7 Processor rev 5 (v7l)</entry>
+  </processor>
+  <processor>
+    <entry name='socket_destination'>2</entry>
+    <entry name='type'>ARMv7 Processor rev 5 (v7l)</entry>
+  </processor>
+  <processor>
+    <entry name='socket_destination'>3</entry>
+    <entry name='type'>ARMv7 Processor rev 5 (v7l)</entry>
+  </processor>
+</sysinfo>

tests/sysinfotest.c

@@ -166,11 +166,23 @@ VIRT_TEST_MAIN(test_x86)
 static int
 test_arm(void)
 {
-    return sysinfotest_run("arm sysinfo",
-                           NULL,
-                           NULL,
-                           "/sysinfodata/armcpuinfo.data",
-                           "/sysinfodata/armsysinfo.expect");
+    int ret = EXIT_SUCCESS;
+
+    if (sysinfotest_run("arm sysinfo",
+                        NULL,
+                        NULL,
+                        "/sysinfodata/armcpuinfo.data",
+                        "/sysinfodata/armsysinfo.expect") != EXIT_SUCCESS)
+        ret = EXIT_FAILURE;
+
+    if (sysinfotest_run("Raspberry Pi 2 sysinfo",
+                        NULL,
+                        NULL,
+                        "/sysinfodata/arm-rpi2cpuinfo.data",
+                        "/sysinfodata/arm-rpi2sysinfo.expect") != EXIT_SUCCESS)
+        ret = EXIT_FAILURE;
+
+    return ret;
 }
 
 VIRT_TEST_MAIN(test_arm)