[systemd-devel] [PATCH 2/2] detect-virt: dmi: look for KVM
Andrew Jones
drjones at redhat.com
Tue Nov 3 13:19:28 PST 2015
Some guests (ARM, AArch64, x86-RHEL) have 'KVM' in the product name.
Look for that first in order to more precisely report "kvm" when
detecting a QEMU/KVM guest. Without this patch we report "qemu",
even if KVM acceleration is in use on ARM/AArch64 guests.
---
src/basic/virt.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/basic/virt.c b/src/basic/virt.c
index b0e33dc5f4d24..254dc7dba4dd9 100644
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -147,6 +147,7 @@ static int detect_vm_dmi(void) {
#if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__aarch64__)
static const char *const dmi_vendors[] = {
+ "/sys/class/dmi/id/product_name", /* Test this before sys_vendor to detect KVM over QEMU */
"/sys/class/dmi/id/sys_vendor",
"/sys/class/dmi/id/board_vendor",
"/sys/class/dmi/id/bios_vendor"
@@ -156,6 +157,7 @@ static int detect_vm_dmi(void) {
const char *vendor;
int id;
} dmi_vendor_table[] = {
+ { "KVM", VIRTUALIZATION_KVM },
{ "QEMU", VIRTUALIZATION_QEMU },
/* http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458 */
{ "VMware", VIRTUALIZATION_VMWARE },
--
2.4.3
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