From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51856) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRsDt-0002wg-UQ for qemu-devel@nongnu.org; Thu, 12 Jan 2017 22:08:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cRsDt-0007se-7o for qemu-devel@nongnu.org; Thu, 12 Jan 2017 22:08:13 -0500 Received: from mx1.redhat.com ([209.132.183.28]:52612) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cRsDt-0007sA-25 for qemu-devel@nongnu.org; Thu, 12 Jan 2017 22:08:13 -0500 From: Peter Xu Date: Fri, 13 Jan 2017 11:06:38 +0800 Message-Id: <1484276800-26814-13-git-send-email-peterx@redhat.com> In-Reply-To: <1484276800-26814-1-git-send-email-peterx@redhat.com> References: <1484276800-26814-1-git-send-email-peterx@redhat.com> Subject: [Qemu-devel] [PATCH RFC v3 12/14] intel_iommu: do replay when context invalidate List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: tianyu.lan@intel.com, kevin.tian@intel.com, mst@redhat.com, jan.kiszka@siemens.com, jasowang@redhat.com, peterx@redhat.com, alex.williamson@redhat.com, bd.aviv@gmail.com Before this one we only invalidate context cache when we receive context entry invalidations. However it's possible that the invalidation also contains a domain switch (only if cache-mode is enabled for vIOMMU). In that case we need to notify all the registered components about the new mapping. Signed-off-by: Peter Xu --- hw/i386/intel_iommu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 59bf683..fd75112 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -1162,6 +1162,7 @@ static void vtd_context_device_invalidate(IntelIOMMUState *s, trace_vtd_inv_desc_cc_device(bus_n, (devfn_it >> 3) & 0x1f, devfn_it & 3); vtd_as->context_cache_entry.context_cache_gen = 0; + memory_region_iommu_replay_all(&vtd_as->iommu); } } } -- 2.7.4