systemd/0012-virt-enable-detecting-...

32 lines
1.3 KiB
Diff

From e48936b0be085f15a2e2ac88b2e50a91a66782ac Mon Sep 17 00:00:00 2001
From: Daniel Berrange <berrange@redhat.com>
Date: Wed, 19 Jul 2017 10:06:07 +0100
Subject: [PATCH] virt: enable detecting QEMU (TCG) via CPUID (#6399)
QEMU >= 2.10 will include a CPUID leaf with value "TCGTCGTCGTCG"
on x86 when running with the TCG CPU emulator:
https://lists.gnu.org/archive/html/qemu-devel/2017-07/msg05231.html
Existing methods of detecting QEMU are left unchanged for sake of
backcompatibility.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
(cherry picked from commit 5588612e9e8828691f13141e3fcebe08a59201fe)
---
src/basic/virt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/basic/virt.c b/src/basic/virt.c
index 6011744523..5143ac6656 100644
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -46,6 +46,7 @@ static int detect_vm_cpuid(void) {
} cpuid_vendor_table[] = {
{ "XenVMMXenVMM", VIRTUALIZATION_XEN },
{ "KVMKVMKVM", VIRTUALIZATION_KVM },
+ { "TCGTCGTCGTCG", VIRTUALIZATION_QEMU },
/* http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458 */
{ "VMwareVMware", VIRTUALIZATION_VMWARE },
/* https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs */