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