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From 038231283c69bf7c9c9fadd2157f53f8b3f719d3 Mon Sep 17 00:00:00 2001
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Message-Id: <038231283c69bf7c9c9fadd2157f53f8b3f719d3@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Wed, 19 Feb 2020 15:10:17 +0100
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Subject: [PATCH] qemuDomainValidateStorageSource: Reject unsupported slices
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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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We support explicit storage slices only when using blockdev. Storage
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slices expressed via the backing store string are left to qemu to
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open correctly.
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Reject storage slices configured via the XML for non-blockdev usage.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit a6eeda986e458e6746268069b1f610c27e89d6e2)
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https://bugzilla.redhat.com/show_bug.cgi?id=1791788
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Message-Id: <10cfef14fcb49c7daef4f869d622ebdf3aa6a4d5.1582120424.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/qemu/qemu_domain.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
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index cf069e2b79..7b414b79c7 100644
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--- a/src/qemu/qemu_domain.c
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+++ b/src/qemu/qemu_domain.c
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@@ -6936,6 +6936,18 @@ qemuDomainValidateStorageSource(virStorageSourcePtr src,
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return -1;
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}
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+ if (src->sliceStorage) {
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+ /* In pre-blockdev era we can't configure the slice so we can allow them
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+ * only for detected backing store entries as they are populated
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+ * from a place that qemu would be able to read */
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+ if (!src->detected &&
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+ !virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKDEV)) {
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+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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+ _("storage slice is not supported by this QEMU binary"));
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+ return -1;
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+ }
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+ }
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+
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return 0;
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}
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--
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2.25.0
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