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From 7790ed8ef557f413c46de458cf8a91e4d73fcca6 Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Wed, 25 Sep 2013 12:20:37 +0100
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Subject: [PATCH] launch: libvirt: Use host-passthrough instead of host-model.
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<cpu model="host-passthrough"> really passes -cpu host to qemu, which
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is what we want since we don't care about live migration or ABI
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stability.
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This should avoid http://bugzilla.redhat.com/870071 .
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Note this "taints" the libvirt domain. We don't particularly care
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about that, and the reason for the tainting doesn't seem to make much
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sense anyway.
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This updates commit 6f76fdb41eb6bd124fbc3d084f5c2a3371b37d9b.
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(cherry picked from commit 2f4f7726e8c81cc56befcb7caa78c01174354d76)
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---
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src/launch-libvirt.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/src/launch-libvirt.c b/src/launch-libvirt.c
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index 3690b1d..80bf44c 100644
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--- a/src/launch-libvirt.c
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+++ b/src/launch-libvirt.c
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@@ -822,7 +822,6 @@ construct_libvirt_xml_cpu (guestfs_h *g,
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/* It is faster to pass the CPU host model to the appliance,
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* allowing maximum speed for things like checksums, encryption.
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- * Note this may cause problems on some CPUs. See: RHBZ#870071.
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* Only do this with KVM. It is broken in subtle ways on TCG, and
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* fairly pointless anyway.
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*/
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@@ -830,7 +829,7 @@ construct_libvirt_xml_cpu (guestfs_h *g,
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XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "cpu"));
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XMLERROR (-1,
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xmlTextWriterWriteAttribute (xo, BAD_CAST "mode",
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- BAD_CAST "host-model"));
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+ BAD_CAST "host-passthrough"));
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XMLERROR (-1, xmlTextWriterStartElement (xo, BAD_CAST "model"));
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XMLERROR (-1,
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xmlTextWriterWriteAttribute (xo, BAD_CAST "fallback",
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--
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1.8.3.1
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