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From 202a17ed092c28749335bc7ed1641c5590841be6 Mon Sep 17 00:00:00 2001
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Message-Id: <202a17ed092c28749335bc7ed1641c5590841be6@dist-git>
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From: Andrea Bolognani <abologna@redhat.com>
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Date: Fri, 21 Aug 2015 16:36:01 -0700
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Subject: [PATCH] cpu: Don't update host-model guest CPUs on ppc64
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If a guest CPU is defined using
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  <cpu mode='host-model'/>
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the <model> sub-element will contain the compatibility mode to use.
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That means we can't just copy the host CPU model on cpuUpdate(),
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otherwise we'll overwrite that information and migration of such
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guests will fail.
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1251927
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(cherry picked from commit 6d7c2f65c103c9b98baf595d14725e62651bdb1b)
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Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1251927
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Signed-off-by: Andrea Bolognani <abologna@redhat.com>
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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 src/cpu/cpu_ppc64.c | 2 +-
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 1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/cpu/cpu_ppc64.c b/src/cpu/cpu_ppc64.c
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index 85aa5bc..72b8fa0 100644
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--- a/src/cpu/cpu_ppc64.c
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+++ b/src/cpu/cpu_ppc64.c
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@@ -667,13 +667,13 @@ ppc64DriverUpdate(virCPUDefPtr guest,
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                   const virCPUDef *host)
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 {
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     switch ((virCPUMode) guest->mode) {
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-    case VIR_CPU_MODE_HOST_MODEL:
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     case VIR_CPU_MODE_HOST_PASSTHROUGH:
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         guest->match = VIR_CPU_MATCH_EXACT;
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         guest->fallback = VIR_CPU_FALLBACK_FORBID;
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         virCPUDefFreeModel(guest);
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         return virCPUDefCopyModel(guest, host, true);
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+    case VIR_CPU_MODE_HOST_MODEL:
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     case VIR_CPU_MODE_CUSTOM:
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         return 0;
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-- 
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2.5.0
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