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detect-virt: use /proc/device-tree 

Kernel doc Documentation/ABI/testing/sysfs-firmware-ofw says that
the /proc/device-tree symlink should be used, as opposed to
directly accessing /sys/firmware/devicetree/base. The former is
ABI, but not the later.
This commit is contained in:
Andrew Jones 2015-03-31 11:08:11 +02:00 committed by Lennart Poettering
parent c87664fef4
commit b8f1df8264
1 changed files with 1 additions and 1 deletions
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2
src/shared/virt.c
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@ -106,7 +106,7 @@ static int detect_vm_devicetree(const char **_id) {
_cleanup_free_ char *hvtype = NULL;
int r;
r = read_one_line_file("/sys/firmware/devicetree/base/hypervisor/compatible", &hvtype);
r = read_one_line_file("/proc/device-tree/hypervisor/compatible", &hvtype);
if (r >= 0) {
if (streq(hvtype, "linux,kvm")) {
*_id = "kvm";