From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57719) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gFTtG-0002CD-2i for qemu-devel@nongnu.org; Wed, 24 Oct 2018 20:52:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gFTtC-00048B-E2 for qemu-devel@nongnu.org; Wed, 24 Oct 2018 20:52:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44044) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gFTt8-0003y2-CO for qemu-devel@nongnu.org; Wed, 24 Oct 2018 20:52:39 -0400 Date: Wed, 24 Oct 2018 20:52:24 -0400 From: "Michael S. Tsirkin" Message-ID: <20181025005110.249256-3-mst@redhat.com> References: <20181025005110.249256-1-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181025005110.249256-1-mst@redhat.com> Subject: [Qemu-devel] [PULL v2 02/28] intel_iommu: introduce vtd_reset_caches() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Peter Xu , Eric Auger , Jason Wang , Marcel Apfelbaum , Paolo Bonzini , Richard Henderson , Eduardo Habkost From: Peter Xu Provide the function and use it in vtd_init(). Used to reset both context entry cache and iotlb cache for the whole IOMMU unit. Signed-off-by: Peter Xu Reviewed-by: Eric Auger Reviewed-by: Jason Wang Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/i386/intel_iommu.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 3dfada19a6..1137861a9d 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -227,6 +227,14 @@ static void vtd_reset_iotlb(IntelIOMMUState *s) vtd_iommu_unlock(s); } +static void vtd_reset_caches(IntelIOMMUState *s) +{ + vtd_iommu_lock(s); + vtd_reset_iotlb_locked(s); + vtd_reset_context_cache_locked(s); + vtd_iommu_unlock(s); +} + static uint64_t vtd_get_iotlb_key(uint64_t gfn, uint16_t source_id, uint32_t level) { @@ -3160,10 +3168,7 @@ static void vtd_init(IntelIOMMUState *s) s->cap |= VTD_CAP_CM; } - vtd_iommu_lock(s); - vtd_reset_context_cache_locked(s); - vtd_reset_iotlb_locked(s); - vtd_iommu_unlock(s); + vtd_reset_caches(s); /* Define registers with default values and bit semantics */ vtd_define_long(s, DMAR_VER_REG, 0x10UL, 0, 0); -- MST