From 3b51a7b84ea21360c6d551284aecb8b6f371e888 Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Tue, 4 Jul 2023 09:19:31 +0200 Subject: [PATCH 9/9] vhost-vdpa: mute unaligned memory error report MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Laurent Vivier RH-MergeRequest: 193: vhost-vdpa: mute unaligned memory error report RH-Bugzilla: 2141965 RH-Acked-by: Miroslav Rezanina RH-Acked-by: Eugenio Pérez RH-Commit: [1/1] 60f5385d41269ce9310e1e8e0a2f1106e3a16ada (lvivier/qemu-kvm-centos) BZ: https://bugzilla.redhat.com/show_bug.cgi?id=2141965 With TPM CRM device, vhost-vdpa reports an error when it tries to register a listener for a non aligned memory region: qemu-system-x86_64: vhost_vdpa_listener_region_add received unaligned region qemu-system-x86_64: vhost_vdpa_listener_region_del received unaligned region This error can be confusing for the user whereas we only need to skip the region (as it's already done after the error_report()) Rather than introducing a special case for TPM CRB memory section to not display the message in this case, simply replace the error_report() by a trace function (with more information, like the memory region name). Signed-off-by: Laurent Vivier Message-Id: <20230704071931.575888-2-lvivier@redhat.com> Reviewed-by: David Hildenbrand Acked-by: Jason Wang Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin (cherry picked from commit 77812aa7b1fdf8f547c35a7f9a4eb1cbf3a073db) --- hw/virtio/trace-events | 2 ++ hw/virtio/vhost-vdpa.c | 8 ++++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index 68b752e304..300dec8d3e 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -34,7 +34,9 @@ vhost_vdpa_dma_map(void *vdpa, int fd, uint32_t msg_type, uint32_t asid, uint64_ vhost_vdpa_dma_unmap(void *vdpa, int fd, uint32_t msg_type, uint32_t asid, uint64_t iova, uint64_t size, uint8_t type) "vdpa:%p fd: %d msg_type: %"PRIu32" asid: %"PRIu32" iova: 0x%"PRIx64" size: 0x%"PRIx64" type: %"PRIu8 vhost_vdpa_listener_begin_batch(void *v, int fd, uint32_t msg_type, uint8_t type) "vdpa:%p fd: %d msg_type: %"PRIu32" type: %"PRIu8 vhost_vdpa_listener_commit(void *v, int fd, uint32_t msg_type, uint8_t type) "vdpa:%p fd: %d msg_type: %"PRIu32" type: %"PRIu8 +vhost_vdpa_listener_region_add_unaligned(void *v, const char *name, uint64_t offset_as, uint64_t offset_page) "vdpa: %p region %s offset_within_address_space %"PRIu64" offset_within_region %"PRIu64 vhost_vdpa_listener_region_add(void *vdpa, uint64_t iova, uint64_t llend, void *vaddr, bool readonly) "vdpa: %p iova 0x%"PRIx64" llend 0x%"PRIx64" vaddr: %p read-only: %d" +vhost_vdpa_listener_region_del_unaligned(void *v, const char *name, uint64_t offset_as, uint64_t offset_page) "vdpa: %p region %s offset_within_address_space %"PRIu64" offset_within_region %"PRIu64 vhost_vdpa_listener_region_del(void *vdpa, uint64_t iova, uint64_t llend) "vdpa: %p iova 0x%"PRIx64" llend 0x%"PRIx64 vhost_vdpa_add_status(void *dev, uint8_t status) "dev: %p status: 0x%"PRIx8 vhost_vdpa_init(void *dev, void *vdpa) "dev: %p vdpa: %p" diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index bc6bad23d5..c04f14420d 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -202,7 +202,9 @@ static void vhost_vdpa_listener_region_add(MemoryListener *listener, if (unlikely((section->offset_within_address_space & ~TARGET_PAGE_MASK) != (section->offset_within_region & ~TARGET_PAGE_MASK))) { - error_report("%s received unaligned region", __func__); + trace_vhost_vdpa_listener_region_add_unaligned(v, section->mr->name, + section->offset_within_address_space & ~TARGET_PAGE_MASK, + section->offset_within_region & ~TARGET_PAGE_MASK); return; } @@ -281,7 +283,9 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener, if (unlikely((section->offset_within_address_space & ~TARGET_PAGE_MASK) != (section->offset_within_region & ~TARGET_PAGE_MASK))) { - error_report("%s received unaligned region", __func__); + trace_vhost_vdpa_listener_region_del_unaligned(v, section->mr->name, + section->offset_within_address_space & ~TARGET_PAGE_MASK, + section->offset_within_region & ~TARGET_PAGE_MASK); return; } -- 2.39.3