From: "Michael S. Tsirkin" <mst@redhat.com> To: Wu Zongyong <wuzongyong@linux.alibaba.com> Cc: wei.yang1@linux.alibaba.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH] vhost-vdpa: clean irqs before reseting vdpa device Date: Mon, 15 Nov 2021 05:56:17 -0500 [thread overview] Message-ID: <20211115055336-mutt-send-email-mst@kernel.org> (raw) In-Reply-To: <a2cb60cf73be9da5c4e6399242117d8818f975ae.1636946171.git.wuzongyong@linux.alibaba.com> On Mon, Nov 15, 2021 at 11:16:42AM +0800, Wu Zongyong wrote: > Vdpa devices should be reset after unseting irqs of virtqueues, or we > will get errors when killing qemu process: > > >> pi_update_irte: failed to update PI IRTE > >> irq bypass consumer (token 0000000065102a43) unregistration fails: -22 > > Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> A Fixes flag might be appropriate here. 2cf1ba9a4d15c ? Also, remind me of commit 97f854be203883b61d24f230445bd533bbdf770c vhost_vdpa: unset vq irq before freeing irq - what's the difference in scenarios? > --- > drivers/vhost/vdpa.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c > index 01c59ce7e250..29cced1cd277 100644 > --- a/drivers/vhost/vdpa.c > +++ b/drivers/vhost/vdpa.c > @@ -1014,12 +1014,12 @@ static int vhost_vdpa_release(struct inode *inode, struct file *filep) > > mutex_lock(&d->mutex); > filep->private_data = NULL; > + vhost_vdpa_clean_irq(v); > vhost_vdpa_reset(v); > vhost_dev_stop(&v->vdev); > vhost_vdpa_iotlb_free(v); > vhost_vdpa_free_domain(v); > vhost_vdpa_config_put(v); > - vhost_vdpa_clean_irq(v); > vhost_dev_cleanup(&v->vdev); > kfree(v->vdev.vqs); > mutex_unlock(&d->mutex); > -- > 2.31.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com> To: Wu Zongyong <wuzongyong@linux.alibaba.com> Cc: jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, wei.yang1@linux.alibaba.com Subject: Re: [PATCH] vhost-vdpa: clean irqs before reseting vdpa device Date: Mon, 15 Nov 2021 05:56:17 -0500 [thread overview] Message-ID: <20211115055336-mutt-send-email-mst@kernel.org> (raw) In-Reply-To: <a2cb60cf73be9da5c4e6399242117d8818f975ae.1636946171.git.wuzongyong@linux.alibaba.com> On Mon, Nov 15, 2021 at 11:16:42AM +0800, Wu Zongyong wrote: > Vdpa devices should be reset after unseting irqs of virtqueues, or we > will get errors when killing qemu process: > > >> pi_update_irte: failed to update PI IRTE > >> irq bypass consumer (token 0000000065102a43) unregistration fails: -22 > > Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com> A Fixes flag might be appropriate here. 2cf1ba9a4d15c ? Also, remind me of commit 97f854be203883b61d24f230445bd533bbdf770c vhost_vdpa: unset vq irq before freeing irq - what's the difference in scenarios? > --- > drivers/vhost/vdpa.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c > index 01c59ce7e250..29cced1cd277 100644 > --- a/drivers/vhost/vdpa.c > +++ b/drivers/vhost/vdpa.c > @@ -1014,12 +1014,12 @@ static int vhost_vdpa_release(struct inode *inode, struct file *filep) > > mutex_lock(&d->mutex); > filep->private_data = NULL; > + vhost_vdpa_clean_irq(v); > vhost_vdpa_reset(v); > vhost_dev_stop(&v->vdev); > vhost_vdpa_iotlb_free(v); > vhost_vdpa_free_domain(v); > vhost_vdpa_config_put(v); > - vhost_vdpa_clean_irq(v); > vhost_dev_cleanup(&v->vdev); > kfree(v->vdev.vqs); > mutex_unlock(&d->mutex); > -- > 2.31.1
next prev parent reply other threads:[~2021-11-15 10:56 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-15 3:16 [PATCH] vhost-vdpa: clean irqs before reseting vdpa device Wu Zongyong 2021-11-15 4:08 ` Jason Wang 2021-11-15 4:08 ` Jason Wang 2021-11-15 10:56 ` Michael S. Tsirkin [this message] 2021-11-15 10:56 ` Michael S. Tsirkin 2021-11-16 13:29 ` Wu Zongyong
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