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From c3148a408bd3c7ccf858bd5e0ac1139588847fc9 Mon Sep 17 00:00:00 2001
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Message-Id: <c3148a408bd3c7ccf858bd5e0ac1139588847fc9@dist-git>
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From: Jiri Denemark <jdenemar@redhat.com>
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Date: Fri, 21 Jun 2019 09:25:19 +0200
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Subject: [PATCH] cpu_x86: Require <cpuid> within <feature> in CPU map
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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A feature with no cpuid element is invalid and it should not be silently
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treated as a feature with all CPUID bits set to zero.
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit dbc04114f3d14b53c999bd89db51276358b1aba3)
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https://bugzilla.redhat.com/show_bug.cgi?id=1697627
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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Message-Id: <ea3bbf9cb28709fe52f43ce312c0171e2a62c1e8.1561068591.git.jdenemar@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/cpu/cpu_x86.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
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index 66aa5a612c..98e8d608d6 100644
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--- a/src/cpu/cpu_x86.c
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+++ b/src/cpu/cpu_x86.c
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@@ -923,6 +923,13 @@ x86FeatureParse(xmlXPathContextPtr ctxt,
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if (n < 0)
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goto cleanup;
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+ if (n == 0) {
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+ virReportError(VIR_ERR_INTERNAL_ERROR,
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+ _("Missing cpuid for feature %s"),
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+ feature->name);
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+ goto cleanup;
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+ }
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+
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for (i = 0; i < n; i++) {
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ctxt->node = nodes[i];
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if (x86ParseCPUID(ctxt, &cpuid) < 0) {
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--
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2.22.0
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