diff options
| author | Lennart Poettering <lennart@poettering.net> | 2013-03-07 15:59:26 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2013-03-07 16:03:12 +0100 |
| commit | b1b8e8169496d3c4f991de9a9d2975ffada6fa0f (patch) | |
| tree | 3b2bd3712cb613cdb5dbb1f2d3de16abb05fb157 /src/shared/virt.c | |
| parent | f2d88580b50e3c173dcc2838f92fa85291bc5495 (diff) | |
virt: check for /sys/hypervisor/type for detecting xen PV
https://bugs.freedesktop.org/show_bug.cgi?id=61491
Diffstat (limited to 'src/shared/virt.c')
| -rw-r--r-- | src/shared/virt.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/src/shared/virt.c b/src/shared/virt.c index eed321016..78016eec8 100644 --- a/src/shared/virt.c +++ b/src/shared/virt.c @@ -66,6 +66,22 @@ int detect_vm(const char **id) { unsigned i; const char *j, *k; bool hypervisor; + _cleanup_free_ char *hvtype = NULL; + int r; + + /* Try high-level hypervisor sysfs file first: + * + * https://bugs.freedesktop.org/show_bug.cgi?id=61491 */ + r = read_one_line_file("/sys/hypervisor/type", &hvtype); + if (r >= 0) { + if (streq(hvtype, "xen")) { + if (id) + *id = "xen"; + + return 1; + } + } else if (r != -ENOENT) + return r; /* http://lwn.net/Articles/301888/ */ zero(sig); @@ -118,11 +134,11 @@ int detect_vm(const char **id) { } for (i = 0; i < ELEMENTSOF(dmi_vendors); i++) { - char *s; - int r; + _cleanup_free_ char *s = NULL; const char *found = NULL; - if ((r = read_one_line_file(dmi_vendors[i], &s)) < 0) { + r = read_one_line_file(dmi_vendors[i], &s); + if (r < 0) { if (r != -ENOENT) return r; @@ -132,7 +148,6 @@ int detect_vm(const char **id) { NULSTR_FOREACH_PAIR(j, k, dmi_vendor_table) if (startswith(s, j)) found = k; - free(s); if (found) { if (id) @@ -142,7 +157,7 @@ int detect_vm(const char **id) { } } - if (hypervisor) { + if (hypervisor || hvtype) { if (id) *id = "other"; |