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Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , CLEMENT MATHIEU--DRIF , Jason Wang , Yi Liu , Marcel Apfelbaum , Paolo Bonzini , Richard Henderson , Eduardo Habkost Subject: [PULL 35/97] intel_iommu: Implement the PCIIOMMUOps callbacks related to invalidations of device-IOTLB Message-ID: <1fa16d5c3a81bc6434cbc7afe483b3791b295ac6.1752534227.git.mst@redhat.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Received-SPF: pass client-ip=170.10.129.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: CLEMENT MATHIEU--DRIF Signed-off-by: Clement Mathieu--Drif Message-Id: <20250628180226.133285-8-clement.mathieu--drif@eviden.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/i386/intel_iommu.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index affa7768e6..234c452849 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -4733,6 +4733,15 @@ static AddressSpace *vtd_host_dma_iommu(PCIBus *bus, void *opaque, int devfn) return &vtd_as->as; } +static void vtd_init_iotlb_notifier(PCIBus *bus, void *opaque, int devfn, + IOMMUNotifier *n, IOMMUNotify fn, + void *user_opaque) +{ + n->opaque = user_opaque; + iommu_notifier_init(n, fn, IOMMU_NOTIFIER_DEVIOTLB_EVENTS, 0, + HWADDR_MAX, 0); +} + static void vtd_get_iotlb_info(void *opaque, uint8_t *addr_width, uint32_t *min_page_size) { @@ -4742,11 +4751,37 @@ static void vtd_get_iotlb_info(void *opaque, uint8_t *addr_width, *min_page_size = VTD_PAGE_SIZE; } +static void vtd_register_iotlb_notifier(PCIBus *bus, void *opaque, + int devfn, uint32_t pasid, + IOMMUNotifier *n) +{ + IntelIOMMUState *s = opaque; + VTDAddressSpace *vtd_as; + + vtd_as = vtd_find_add_as(s, bus, devfn, pasid); + memory_region_register_iommu_notifier(MEMORY_REGION(&vtd_as->iommu), n, + &error_fatal); +} + +static void vtd_unregister_iotlb_notifier(PCIBus *bus, void *opaque, + int devfn, uint32_t pasid, + IOMMUNotifier *n) +{ + IntelIOMMUState *s = opaque; + VTDAddressSpace *vtd_as; + + vtd_as = vtd_find_add_as(s, bus, devfn, pasid); + memory_region_unregister_iommu_notifier(MEMORY_REGION(&vtd_as->iommu), n); +} + static PCIIOMMUOps vtd_iommu_ops = { .get_address_space = vtd_host_dma_iommu, .set_iommu_device = vtd_dev_set_iommu_device, .unset_iommu_device = vtd_dev_unset_iommu_device, .get_iotlb_info = vtd_get_iotlb_info, + .init_iotlb_notifier = vtd_init_iotlb_notifier, + .register_iotlb_notifier = vtd_register_iotlb_notifier, + .unregister_iotlb_notifier = vtd_unregister_iotlb_notifier, }; static bool vtd_decide_config(IntelIOMMUState *s, Error **errp) -- MST