From: Avihai Horon <avihaih@nvidia.com>
To: "Cédric Le Goater" <clg@redhat.com>, qemu-devel@nongnu.org
Cc: "Peter Xu" <peterx@redhat.com>, "Fabiano Rosas" <farosas@suse.de>,
"Alex Williamson" <alex.williamson@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Markus Armbruster" <armbru@redhat.com>
Subject: Re: [PATCH v5 02/10] vfio: Add Error** argument to vfio_devices_dma_logging_start()
Date: Mon, 13 May 2024 16:08:41 +0300 [thread overview]
Message-ID: <21449e77-5403-4d7a-af29-fedcab9a4385@nvidia.com> (raw)
In-Reply-To: <20240506092053.388578-3-clg@redhat.com>
On 06/05/2024 12:20, Cédric Le Goater wrote:
> External email: Use caution opening links or attachments
>
>
> This allows to update the Error argument of the VFIO log_global_start()
> handler. Errors detected when device level logging is started will be
> propagated up to qemu_savevm_state_setup() when the ram save_setup()
> handler is executed.
Errors for container based logging will also be propagated now.
>
> The vfio_set_migration_error() call becomes redundant in
> vfio_devices_dma_logging_start(). Remove it.
Becomes redundant in vfio_listener_log_global_start()?
Other than that,
Reviewed-by: Avihai Horon <avihaih@nvidia.com>
>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Cédric Le Goater <clg@redhat.com>
> ---
>
> Changes in v5:
>
> - Used error_setg_errno() in vfio_devices_dma_logging_start()
>
> hw/vfio/common.c | 26 +++++++++++++++-----------
> 1 file changed, 15 insertions(+), 11 deletions(-)
>
> diff --git a/hw/vfio/common.c b/hw/vfio/common.c
> index 485e53916491f1164d29e739fb7106c0c77df737..b5102f54a6474a50c6366e8fbce23812d55e384e 100644
> --- a/hw/vfio/common.c
> +++ b/hw/vfio/common.c
> @@ -1027,7 +1027,8 @@ static void vfio_device_feature_dma_logging_start_destroy(
> g_free(feature);
> }
>
> -static int vfio_devices_dma_logging_start(VFIOContainerBase *bcontainer)
> +static int vfio_devices_dma_logging_start(VFIOContainerBase *bcontainer,
> + Error **errp)
> {
> struct vfio_device_feature *feature;
> VFIODirtyRanges ranges;
> @@ -1038,6 +1039,7 @@ static int vfio_devices_dma_logging_start(VFIOContainerBase *bcontainer)
> feature = vfio_device_feature_dma_logging_start_create(bcontainer,
> &ranges);
> if (!feature) {
> + error_setg_errno(errp, errno, "Failed to prepare DMA logging");
> return -errno;
> }
>
> @@ -1049,8 +1051,8 @@ static int vfio_devices_dma_logging_start(VFIOContainerBase *bcontainer)
> ret = ioctl(vbasedev->fd, VFIO_DEVICE_FEATURE, feature);
> if (ret) {
> ret = -errno;
> - error_report("%s: Failed to start DMA logging, err %d (%s)",
> - vbasedev->name, ret, strerror(errno));
> + error_setg_errno(errp, errno, "%s: Failed to start DMA logging",
> + vbasedev->name);
> goto out;
> }
> vbasedev->dirty_tracking = true;
> @@ -1069,20 +1071,19 @@ out:
> static bool vfio_listener_log_global_start(MemoryListener *listener,
> Error **errp)
> {
> + ERRP_GUARD();
> VFIOContainerBase *bcontainer = container_of(listener, VFIOContainerBase,
> listener);
> int ret;
>
> if (vfio_devices_all_device_dirty_tracking(bcontainer)) {
> - ret = vfio_devices_dma_logging_start(bcontainer);
> + ret = vfio_devices_dma_logging_start(bcontainer, errp);
> } else {
> - ret = vfio_container_set_dirty_page_tracking(bcontainer, true, NULL);
> + ret = vfio_container_set_dirty_page_tracking(bcontainer, true, errp);
> }
>
> if (ret) {
> - error_report("vfio: Could not start dirty page tracking, err: %d (%s)",
> - ret, strerror(-ret));
> - vfio_set_migration_error(ret);
> + error_prepend(errp, "vfio: Could not start dirty page tracking - ");
> }
> return !ret;
> }
> @@ -1091,17 +1092,20 @@ static void vfio_listener_log_global_stop(MemoryListener *listener)
> {
> VFIOContainerBase *bcontainer = container_of(listener, VFIOContainerBase,
> listener);
> + Error *local_err = NULL;
> int ret = 0;
>
> if (vfio_devices_all_device_dirty_tracking(bcontainer)) {
> vfio_devices_dma_logging_stop(bcontainer);
> } else {
> - ret = vfio_container_set_dirty_page_tracking(bcontainer, false, NULL);
> + ret = vfio_container_set_dirty_page_tracking(bcontainer, false,
> + &local_err);
> }
>
> if (ret) {
> - error_report("vfio: Could not stop dirty page tracking, err: %d (%s)",
> - ret, strerror(-ret));
> + error_prepend(&local_err,
> + "vfio: Could not stop dirty page tracking - ");
> + error_report_err(local_err);
> vfio_set_migration_error(ret);
> }
> }
> --
> 2.45.0
>
next prev parent reply other threads:[~2024-05-13 13:09 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-06 9:20 [PATCH v5 00/10] vfio: Improve error reporting (part 2) Cédric Le Goater
2024-05-06 9:20 ` [PATCH v5 01/10] vfio: Add Error** argument to .set_dirty_page_tracking() handler Cédric Le Goater
2024-05-13 13:03 ` Avihai Horon
2024-05-13 16:27 ` Cédric Le Goater
2024-05-15 12:17 ` Avihai Horon
2024-05-15 12:25 ` Cédric Le Goater
2024-05-15 12:29 ` Avihai Horon
2024-05-15 12:36 ` Cédric Le Goater
2024-05-15 12:49 ` Avihai Horon
2024-05-06 9:20 ` [PATCH v5 02/10] vfio: Add Error** argument to vfio_devices_dma_logging_start() Cédric Le Goater
2024-05-13 13:08 ` Avihai Horon [this message]
2024-05-13 16:49 ` Cédric Le Goater
2024-05-06 9:20 ` [PATCH v5 03/10] vfio: Extend migration_file_set_error() with Error** argument Cédric Le Goater
2024-05-13 13:14 ` Avihai Horon
2024-05-13 16:51 ` Cédric Le Goater
2024-05-13 22:19 ` Fabiano Rosas
2024-05-06 9:20 ` [PATCH v5 04/10] vfio: Use new Error** argument in vfio_save_setup() Cédric Le Goater
2024-05-13 13:21 ` Avihai Horon
2024-05-14 7:57 ` Cédric Le Goater
2024-05-06 9:20 ` [PATCH v5 05/10] vfio: Add Error** argument to .vfio_save_config() handler Cédric Le Goater
2024-05-13 13:30 ` Avihai Horon
2024-05-14 8:50 ` Cédric Le Goater
2024-05-06 9:20 ` [PATCH v5 06/10] vfio: Reverse test on vfio_get_dirty_bitmap() Cédric Le Goater
2024-05-13 13:42 ` Avihai Horon
2024-05-14 8:55 ` Cédric Le Goater
2024-05-06 9:20 ` [PATCH v5 07/10] memory: Add Error** argument to memory_get_xlat_addr() Cédric Le Goater
2024-05-13 13:44 ` Avihai Horon
2024-05-14 8:57 ` Cédric Le Goater
2024-05-06 9:20 ` [PATCH v5 08/10] vfio: Add Error** argument to .get_dirty_bitmap() handler Cédric Le Goater
2024-05-13 13:51 ` Avihai Horon
2024-05-14 9:05 ` Cédric Le Goater
2024-05-06 9:20 ` [PATCH v5 09/10] vfio: Also trace event failures in vfio_save_complete_precopy() Cédric Le Goater
2024-05-13 13:54 ` Avihai Horon
2024-05-06 9:20 ` [PATCH v5 10/10] vfio: Extend vfio_set_migration_error() with Error* argument Cédric Le Goater
2024-05-13 14:26 ` Avihai Horon
2024-05-14 11:20 ` Cédric Le Goater
2024-05-14 14:35 ` Cédric Le Goater
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=21449e77-5403-4d7a-af29-fedcab9a4385@nvidia.com \
--to=avihaih@nvidia.com \
--cc=alex.williamson@redhat.com \
--cc=armbru@redhat.com \
--cc=clg@redhat.com \
--cc=farosas@suse.de \
--cc=peterx@redhat.com \
--cc=philmd@linaro.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).