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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1745570920; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NZKksoeGPtA0x0TVLG+fslSMScBsvNvXl+GKLyJ6Rgg=; b=dYMyt/aySPIN69tVI3Zk8JWQG25S++Bei2+5zLJJFBWZWoOImid7VUacPUFTkegtw+IBJT jojZpKCPebkPr8FjrqtKK/V7EP6SYRgPJXFIoWgzUVBsHBM76rdDhD2kAQutZixTj0tX0i 0xMbodVdL+Y7Izit1tlj9a5lJgfiMY4= X-MC-Unique: Al44SyVGNLGATDeVJBWqhw-1 X-Mimecast-MFC-AGG-ID: Al44SyVGNLGATDeVJBWqhw_1745570909 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Joao Martins , Avihai Horon Subject: [PULL 30/50] vfio: Move dirty tracking related services into container-base.c Date: Fri, 25 Apr 2025 10:46:23 +0200 Message-ID: <20250425084644.102196-31-clg@redhat.com> In-Reply-To: <20250425084644.102196-1-clg@redhat.com> References: <20250425084644.102196-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.84, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1745571355726019100 Routines of common.c : vfio_devices_all_dirty_tracking_started vfio_devices_all_device_dirty_tracking vfio_devices_query_dirty_bitmap vfio_get_dirty_bitmap are all related to dirty page tracking directly at the container level or at the container device level. Naming is a bit confusing. We will propose new names in the following changes. Reviewed-by: Joao Martins Reviewed-by: Avihai Horon Link: https://lore.kernel.org/qemu-devel/20250326075122.1299361-27-clg@redh= at.com Signed-off-by: C=C3=A9dric Le Goater --- include/hw/vfio/vfio-common.h | 9 -- include/hw/vfio/vfio-container-base.h | 7 ++ hw/vfio/common.c | 130 ------------------------ hw/vfio/container-base.c | 138 ++++++++++++++++++++++++++ hw/vfio/meson.build | 2 +- hw/vfio/trace-events | 4 +- 6 files changed, 149 insertions(+), 141 deletions(-) diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index 06178cf2828bdeb5e4881b6b3e2f67708a6df218..0dfae24b72906fa01c5003d1858= d4dc101a5012e 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -141,15 +141,6 @@ int vfio_get_dev_region_info(VFIODevice *vbasedev, uin= t32_t type, bool vfio_has_region_cap(VFIODevice *vbasedev, int region, uint16_t cap_ty= pe); #endif =20 -bool vfio_devices_all_dirty_tracking_started( - const VFIOContainerBase *bcontainer); -bool -vfio_devices_all_device_dirty_tracking(const VFIOContainerBase *bcontainer= ); -int vfio_devices_query_dirty_bitmap(const VFIOContainerBase *bcontainer, - VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp); -int vfio_get_dirty_bitmap(const VFIOContainerBase *bcontainer, uint64_t io= va, - uint64_t size, ram_addr_t ram_addr, Error **errp= ); - /* Returns 0 on success, or a negative errno. */ bool vfio_device_get_name(VFIODevice *vbasedev, Error **errp); void vfio_device_set_fd(VFIODevice *vbasedev, const char *str, Error **err= p); diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-c= ontainer-base.h index e0c458d487b8b6fc7ec7fb17bae84b4a937e6e2c..41ca27b3f0b72929d851f2cef48= 12c7a8003f916 100644 --- a/include/hw/vfio/vfio-container-base.h +++ b/include/hw/vfio/vfio-container-base.h @@ -91,6 +91,13 @@ int vfio_container_set_dirty_page_tracking(VFIOContainer= Base *bcontainer, bool start, Error **errp); int vfio_container_query_dirty_bitmap(const VFIOContainerBase *bcontainer, VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **er= rp); +bool vfio_devices_all_dirty_tracking_started(const VFIOContainerBase *bcon= tainer); +bool vfio_devices_all_device_dirty_tracking(const VFIOContainerBase *bcont= ainer); +int vfio_devices_query_dirty_bitmap(const VFIOContainerBase *bcontainer, + VFIOBitmap *vbmap, hwaddr iova, hwaddr= size, + Error **errp); +int vfio_get_dirty_bitmap(const VFIOContainerBase *bcontainer, uint64_t io= va, + uint64_t size, ram_addr_t ram_addr, Error **errp= ); =20 GList *vfio_container_get_iova_ranges(const VFIOContainerBase *bcontainer); =20 diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 45ac8b7d8bdda391b1f8e04704908f2c0ef47aa8..ed49ef88a865521e16584844721= b6ffa09427f18 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -51,27 +51,6 @@ */ =20 =20 -static bool vfio_devices_all_device_dirty_tracking_started( - const VFIOContainerBase *bcontainer) -{ - VFIODevice *vbasedev; - - QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) { - if (!vbasedev->dirty_tracking) { - return false; - } - } - - return true; -} - -bool vfio_devices_all_dirty_tracking_started( - const VFIOContainerBase *bcontainer) -{ - return vfio_devices_all_device_dirty_tracking_started(bcontainer) || - bcontainer->dirty_pages_started; -} - static bool vfio_log_sync_needed(const VFIOContainerBase *bcontainer) { VFIODevice *vbasedev; @@ -96,22 +75,6 @@ static bool vfio_log_sync_needed(const VFIOContainerBase= *bcontainer) return true; } =20 -bool vfio_devices_all_device_dirty_tracking(const VFIOContainerBase *bcont= ainer) -{ - VFIODevice *vbasedev; - - QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) { - if (vbasedev->device_dirty_page_tracking =3D=3D ON_OFF_AUTO_OFF) { - return false; - } - if (!vbasedev->dirty_pages_supported) { - return false; - } - } - - return true; -} - static bool vfio_listener_skipped_section(MemoryRegionSection *section) { return (!memory_region_is_ram(section->mr) && @@ -1009,99 +972,6 @@ static void vfio_listener_log_global_stop(MemoryListe= ner *listener) } } =20 -static int vfio_device_dma_logging_report(VFIODevice *vbasedev, hwaddr iov= a, - hwaddr size, void *bitmap) -{ - uint64_t buf[DIV_ROUND_UP(sizeof(struct vfio_device_feature) + - sizeof(struct vfio_device_feature_dma_logging_repo= rt), - sizeof(uint64_t))] =3D {}; - struct vfio_device_feature *feature =3D (struct vfio_device_feature *)= buf; - struct vfio_device_feature_dma_logging_report *report =3D - (struct vfio_device_feature_dma_logging_report *)feature->data; - - report->iova =3D iova; - report->length =3D size; - report->page_size =3D qemu_real_host_page_size(); - report->bitmap =3D (uintptr_t)bitmap; - - feature->argsz =3D sizeof(buf); - feature->flags =3D VFIO_DEVICE_FEATURE_GET | - VFIO_DEVICE_FEATURE_DMA_LOGGING_REPORT; - - if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { - return -errno; - } - - return 0; -} - -int vfio_devices_query_dirty_bitmap(const VFIOContainerBase *bcontainer, - VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp) -{ - VFIODevice *vbasedev; - int ret; - - QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) { - ret =3D vfio_device_dma_logging_report(vbasedev, iova, size, - vbmap->bitmap); - if (ret) { - error_setg_errno(errp, -ret, - "%s: Failed to get DMA logging report, iova: " - "0x%" HWADDR_PRIx ", size: 0x%" HWADDR_PRIx, - vbasedev->name, iova, size); - - return ret; - } - } - - return 0; -} - -int vfio_get_dirty_bitmap(const VFIOContainerBase *bcontainer, uint64_t io= va, - uint64_t size, ram_addr_t ram_addr, Error **errp) -{ - bool all_device_dirty_tracking =3D - vfio_devices_all_device_dirty_tracking(bcontainer); - uint64_t dirty_pages; - VFIOBitmap vbmap; - int ret; - - if (!bcontainer->dirty_pages_supported && !all_device_dirty_tracking) { - cpu_physical_memory_set_dirty_range(ram_addr, size, - tcg_enabled() ? DIRTY_CLIENTS_= ALL : - DIRTY_CLIENTS_NOCODE); - return 0; - } - - ret =3D vfio_bitmap_alloc(&vbmap, size); - if (ret) { - error_setg_errno(errp, -ret, - "Failed to allocate dirty tracking bitmap"); - return ret; - } - - if (all_device_dirty_tracking) { - ret =3D vfio_devices_query_dirty_bitmap(bcontainer, &vbmap, iova, = size, - errp); - } else { - ret =3D vfio_container_query_dirty_bitmap(bcontainer, &vbmap, iova= , size, - errp); - } - - if (ret) { - goto out; - } - - dirty_pages =3D cpu_physical_memory_set_dirty_lebitmap(vbmap.bitmap, r= am_addr, - vbmap.pages); - - trace_vfio_get_dirty_bitmap(iova, size, vbmap.size, ram_addr, dirty_pa= ges); -out: - g_free(vbmap.bitmap); - - return ret; -} - typedef struct { IOMMUNotifier n; VFIOGuestIOMMU *giommu; diff --git a/hw/vfio/container-base.c b/hw/vfio/container-base.c index 2c2d8329e3cf0f21386cb0896dd366c8d0ccdb60..f9cf317018b7ad8bfc2e013ce59= c75a100eda7de 100644 --- a/hw/vfio/container-base.c +++ b/hw/vfio/container-base.c @@ -10,12 +10,20 @@ * SPDX-License-Identifier: GPL-2.0-or-later */ =20 +#include +#include + #include "qemu/osdep.h" +#include "system/tcg.h" +#include "system/ram_addr.h" #include "qapi/error.h" #include "qemu/error-report.h" #include "hw/vfio/vfio-container-base.h" #include "hw/vfio/vfio-common.h" /* vfio_reset_handler */ #include "system/reset.h" +#include "vfio-helpers.h" + +#include "trace.h" =20 static QLIST_HEAD(, VFIOAddressSpace) vfio_address_spaces =3D QLIST_HEAD_INITIALIZER(vfio_address_spaces); @@ -143,6 +151,136 @@ int vfio_container_query_dirty_bitmap(const VFIOConta= inerBase *bcontainer, errp); } =20 +static bool vfio_devices_all_device_dirty_tracking_started( + const VFIOContainerBase *bcontainer) +{ + VFIODevice *vbasedev; + + QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) { + if (!vbasedev->dirty_tracking) { + return false; + } + } + + return true; +} + +bool vfio_devices_all_dirty_tracking_started( + const VFIOContainerBase *bcontainer) +{ + return vfio_devices_all_device_dirty_tracking_started(bcontainer) || + bcontainer->dirty_pages_started; +} + +bool vfio_devices_all_device_dirty_tracking(const VFIOContainerBase *bcont= ainer) +{ + VFIODevice *vbasedev; + + QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) { + if (vbasedev->device_dirty_page_tracking =3D=3D ON_OFF_AUTO_OFF) { + return false; + } + if (!vbasedev->dirty_pages_supported) { + return false; + } + } + + return true; +} + +static int vfio_device_dma_logging_report(VFIODevice *vbasedev, hwaddr iov= a, + hwaddr size, void *bitmap) +{ + uint64_t buf[DIV_ROUND_UP(sizeof(struct vfio_device_feature) + + sizeof(struct vfio_device_feature_dma_logging_repo= rt), + sizeof(uint64_t))] =3D {}; + struct vfio_device_feature *feature =3D (struct vfio_device_feature *)= buf; + struct vfio_device_feature_dma_logging_report *report =3D + (struct vfio_device_feature_dma_logging_report *)feature->data; + + report->iova =3D iova; + report->length =3D size; + report->page_size =3D qemu_real_host_page_size(); + report->bitmap =3D (uintptr_t)bitmap; + + feature->argsz =3D sizeof(buf); + feature->flags =3D VFIO_DEVICE_FEATURE_GET | + VFIO_DEVICE_FEATURE_DMA_LOGGING_REPORT; + + if (ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature)) { + return -errno; + } + + return 0; +} + +int vfio_devices_query_dirty_bitmap(const VFIOContainerBase *bcontainer, + VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp) +{ + VFIODevice *vbasedev; + int ret; + + QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) { + ret =3D vfio_device_dma_logging_report(vbasedev, iova, size, + vbmap->bitmap); + if (ret) { + error_setg_errno(errp, -ret, + "%s: Failed to get DMA logging report, iova: " + "0x%" HWADDR_PRIx ", size: 0x%" HWADDR_PRIx, + vbasedev->name, iova, size); + + return ret; + } + } + + return 0; +} + +int vfio_get_dirty_bitmap(const VFIOContainerBase *bcontainer, uint64_t io= va, + uint64_t size, ram_addr_t ram_addr, Error **errp) +{ + bool all_device_dirty_tracking =3D + vfio_devices_all_device_dirty_tracking(bcontainer); + uint64_t dirty_pages; + VFIOBitmap vbmap; + int ret; + + if (!bcontainer->dirty_pages_supported && !all_device_dirty_tracking) { + cpu_physical_memory_set_dirty_range(ram_addr, size, + tcg_enabled() ? DIRTY_CLIENTS_= ALL : + DIRTY_CLIENTS_NOCODE); + return 0; + } + + ret =3D vfio_bitmap_alloc(&vbmap, size); + if (ret) { + error_setg_errno(errp, -ret, + "Failed to allocate dirty tracking bitmap"); + return ret; + } + + if (all_device_dirty_tracking) { + ret =3D vfio_devices_query_dirty_bitmap(bcontainer, &vbmap, iova, = size, + errp); + } else { + ret =3D vfio_container_query_dirty_bitmap(bcontainer, &vbmap, iova= , size, + errp); + } + + if (ret) { + goto out; + } + + dirty_pages =3D cpu_physical_memory_set_dirty_lebitmap(vbmap.bitmap, r= am_addr, + vbmap.pages); + + trace_vfio_get_dirty_bitmap(iova, size, vbmap.size, ram_addr, dirty_pa= ges); +out: + g_free(vbmap.bitmap); + + return ret; +} + static gpointer copy_iova_range(gconstpointer src, gpointer data) { Range *source =3D (Range *)src; diff --git a/hw/vfio/meson.build b/hw/vfio/meson.build index 1f89bd28c13dea55bcfff476ce99d51b453d8533..9c8a989db2d4578e97d864c5fd8= bcba125eab66a 100644 --- a/hw/vfio/meson.build +++ b/hw/vfio/meson.build @@ -1,6 +1,7 @@ vfio_ss =3D ss.source_set() vfio_ss.add(files( 'common.c', + 'container-base.c', 'container.c', 'helpers.c', )) @@ -19,7 +20,6 @@ specific_ss.add_all(when: 'CONFIG_VFIO', if_true: vfio_ss) system_ss.add(when: 'CONFIG_VFIO_XGMAC', if_true: files('calxeda-xgmac.c')) system_ss.add(when: 'CONFIG_VFIO_AMD_XGBE', if_true: files('amd-xgbe.c')) system_ss.add(when: 'CONFIG_VFIO', if_true: files( - 'container-base.c', 'cpr.c', 'device.c', 'migration.c', diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index 9fee7df8764978723f79dc60d3dc796777278858..d4cd09cb0f93485fe06984346f6= ac927603c5745 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -106,9 +106,11 @@ vfio_put_group(int fd) "close group->fd=3D%d" vfio_get_device(const char * name, unsigned int flags, unsigned int num_re= gions, unsigned int num_irqs) "Device %s flags: %u, regions: %u, irqs: %u" vfio_put_base_device(int fd) "close vdev->fd=3D%d" vfio_legacy_dma_unmap_overflow_workaround(void) "" -vfio_get_dirty_bitmap(uint64_t iova, uint64_t size, uint64_t bitmap_size, = uint64_t start, uint64_t dirty_pages) "iova=3D0x%"PRIx64" size=3D 0x%"PRIx6= 4" bitmap_size=3D0x%"PRIx64" start=3D0x%"PRIx64" dirty_pages=3D%"PRIu64 vfio_iommu_map_dirty_notify(uint64_t iova_start, uint64_t iova_end) "iommu= dirty @ 0x%"PRIx64" - 0x%"PRIx64 =20 +# container-base.c +vfio_get_dirty_bitmap(uint64_t iova, uint64_t size, uint64_t bitmap_size, = uint64_t start, uint64_t dirty_pages) "iova=3D0x%"PRIx64" size=3D 0x%"PRIx6= 4" bitmap_size=3D0x%"PRIx64" start=3D0x%"PRIx64" dirty_pages=3D%"PRIu64 + # region.c vfio_region_write(const char *name, int index, uint64_t addr, uint64_t dat= a, unsigned size) " (%s:region%d+0x%"PRIx64", 0x%"PRIx64 ", %d)" vfio_region_read(char *name, int index, uint64_t addr, unsigned size, uint= 64_t data) " (%s:region%d+0x%"PRIx64", %d) =3D 0x%"PRIx64 --=20 2.49.0