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Re: [PATCH 2/9] vfio: Fix compilation errors caused by VFIO migration v1
From: |
Alex Williamson |
Subject: |
Re: [PATCH 2/9] vfio: Fix compilation errors caused by VFIO migration v1 deprecation |
Date: |
Thu, 12 May 2022 11:57:10 -0600 |
On Thu, 12 May 2022 18:43:13 +0300
Avihai Horon <avihaih@nvidia.com> wrote:
> VFIO migration protocol v1 was deprecated and as part of it some of the
> uAPI definitions were renamed. This caused compilation errors.
> Fix them.
>
> Signed-off-by: Avihai Horon <avihaih@nvidia.com>
> ---
> hw/vfio/common.c | 6 +++---
> hw/vfio/migration.c | 29 ++++++++++++++++-------------
> 2 files changed, 19 insertions(+), 16 deletions(-)
>
> diff --git a/hw/vfio/common.c b/hw/vfio/common.c
> index 159f910421..29982c7af8 100644
> --- a/hw/vfio/common.c
> +++ b/hw/vfio/common.c
> @@ -355,7 +355,7 @@ static bool vfio_devices_all_dirty_tracking(VFIOContainer
> *container)
> }
>
> if ((vbasedev->pre_copy_dirty_page_tracking == ON_OFF_AUTO_OFF)
> - && (migration->device_state & VFIO_DEVICE_STATE_RUNNING)) {
> + && (migration->device_state & VFIO_DEVICE_STATE_V1_RUNNING))
> {
> return false;
> }
> }
> @@ -381,8 +381,8 @@ static bool
> vfio_devices_all_running_and_saving(VFIOContainer *container)
> return false;
> }
>
> - if ((migration->device_state & VFIO_DEVICE_STATE_SAVING) &&
> - (migration->device_state & VFIO_DEVICE_STATE_RUNNING)) {
> + if ((migration->device_state & VFIO_DEVICE_STATE_V1_SAVING) &&
> + (migration->device_state & VFIO_DEVICE_STATE_V1_RUNNING)) {
> continue;
> } else {
> return false;
> diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
> index ff6b45de6b..835608cd23 100644
> --- a/hw/vfio/migration.c
> +++ b/hw/vfio/migration.c
> @@ -432,7 +432,7 @@ static int vfio_save_setup(QEMUFile *f, void *opaque)
> }
>
> ret = vfio_migration_set_state(vbasedev, VFIO_DEVICE_STATE_MASK,
> - VFIO_DEVICE_STATE_SAVING);
> + VFIO_DEVICE_STATE_V1_SAVING);
> if (ret) {
> error_report("%s: Failed to set state SAVING", vbasedev->name);
> return ret;
> @@ -531,8 +531,8 @@ static int vfio_save_complete_precopy(QEMUFile *f, void
> *opaque)
> uint64_t data_size;
> int ret;
>
> - ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_RUNNING,
> - VFIO_DEVICE_STATE_SAVING);
> + ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_V1_RUNNING,
> + VFIO_DEVICE_STATE_V1_SAVING);
> if (ret) {
> error_report("%s: Failed to set state STOP and SAVING",
> vbasedev->name);
> @@ -569,7 +569,7 @@ static int vfio_save_complete_precopy(QEMUFile *f, void
> *opaque)
> return ret;
> }
>
> - ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_SAVING, 0);
> + ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_V1_SAVING,
> 0);
> if (ret) {
> error_report("%s: Failed to set state STOPPED", vbasedev->name);
> return ret;
> @@ -609,7 +609,7 @@ static int vfio_load_setup(QEMUFile *f, void *opaque)
> }
>
> ret = vfio_migration_set_state(vbasedev, ~VFIO_DEVICE_STATE_MASK,
> - VFIO_DEVICE_STATE_RESUMING);
> + VFIO_DEVICE_STATE_V1_RESUMING);
> if (ret) {
> error_report("%s: Failed to set state RESUMING", vbasedev->name);
> if (migration->region.mmaps) {
> @@ -717,20 +717,20 @@ static void vfio_vmstate_change(void *opaque, bool
> running, RunState state)
> * In both the above cases, set _RUNNING bit.
> */
> mask = ~VFIO_DEVICE_STATE_MASK;
> - value = VFIO_DEVICE_STATE_RUNNING;
> + value = VFIO_DEVICE_STATE_V1_RUNNING;
> } else {
> /*
> * Here device state could be either _RUNNING or _SAVING|_RUNNING.
> Reset
> * _RUNNING bit
> */
> - mask = ~VFIO_DEVICE_STATE_RUNNING;
> + mask = ~VFIO_DEVICE_STATE_V1_RUNNING;
>
> /*
> * When VM state transition to stop for savevm command, device should
> * start saving data.
> */
> if (state == RUN_STATE_SAVE_VM) {
> - value = VFIO_DEVICE_STATE_SAVING;
> + value = VFIO_DEVICE_STATE_V1_SAVING;
> } else {
> value = 0;
> }
> @@ -767,9 +767,10 @@ static void vfio_migration_state_notifier(Notifier
> *notifier, void *data)
> case MIGRATION_STATUS_CANCELLED:
> case MIGRATION_STATUS_FAILED:
> bytes_transferred = 0;
> - ret = vfio_migration_set_state(vbasedev,
> - ~(VFIO_DEVICE_STATE_SAVING |
> VFIO_DEVICE_STATE_RESUMING),
> - VFIO_DEVICE_STATE_RUNNING);
> + ret = vfio_migration_set_state(
> + vbasedev,
> + ~(VFIO_DEVICE_STATE_V1_SAVING | VFIO_DEVICE_STATE_V1_RESUMING),
> + VFIO_DEVICE_STATE_V1_RUNNING);
Yikes! Please follow the line wrapping used elsewhere. There's no need
to put the first arg on a new line and subsequent wrapped lines should
be indented to match the previous line, or at least to avoid wrapping
itself. Here we can use something like:
ret = vfio_migration_set_state(vbasedev,
~(VFIO_DEVICE_STATE_V1_SAVING |
VFIO_DEVICE_STATE_V1_RESUMING),
VFIO_DEVICE_STATE_V1_RUNNING);
Thanks,
Alex
> if (ret) {
> error_report("%s: Failed to set state RUNNING", vbasedev->name);
> }
> @@ -864,8 +865,10 @@ int vfio_migration_probe(VFIODevice *vbasedev, Error
> **errp)
> goto add_blocker;
> }
>
> - ret = vfio_get_dev_region_info(vbasedev, VFIO_REGION_TYPE_MIGRATION,
> - VFIO_REGION_SUBTYPE_MIGRATION, &info);
> + ret = vfio_get_dev_region_info(vbasedev,
> + VFIO_REGION_TYPE_MIGRATION_DEPRECATED,
> + VFIO_REGION_SUBTYPE_MIGRATION_DEPRECATED,
> + &info);
> if (ret) {
> goto add_blocker;
> }
[PATCH 4/9] vfio/migration: Skip pre-copy if dirty page tracking is not supported, Avihai Horon, 2022/05/12