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From: Roger Pau Monne <roger.pau@citrix.com>
To: <xen-devel@lists.xenproject.org>
Cc: Roger Pau Monne <roger.pau@citrix.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	George Dunlap <george.dunlap@citrix.com>,
	"Ian Jackson" <iwj@xenproject.org>,
	Jan Beulich <jbeulich@suse.com>, Julien Grall <julien@xen.org>,
	Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>
Subject: [PATCH] xen/domain: check IOMMU options doesn't contain unknown bits set
Date: Thu, 1 Oct 2020 13:44:07 +0200	[thread overview]
Message-ID: <20201001114407.44532-1-roger.pau@citrix.com> (raw)

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
---
 xen/common/domain.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/xen/common/domain.c b/xen/common/domain.c
index 8cfa2e0b6b..c4a480fa14 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -310,6 +310,12 @@ static int sanitise_domain_config(struct xen_domctl_createdomain *config)
         return -EINVAL;
     }
 
+    if ( config->iommu_opts & ~XEN_DOMCTL_IOMMU_no_sharept )
+    {
+        dprintk(XENLOG_INFO, "Unknown IOMMU options %#x\n", config->iommu_opts);
+        return -EINVAL;
+    }
+
     if ( !(config->flags & XEN_DOMCTL_CDF_iommu) && config->iommu_opts )
     {
         dprintk(XENLOG_INFO,
-- 
2.28.0



             reply	other threads:[~2020-10-01 11:44 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-01 11:44 Roger Pau Monne [this message]
2020-10-01 11:51 ` [PATCH] xen/domain: check IOMMU options doesn't contain unknown bits set Jan Beulich

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