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SubjectRe: [PATCH v8 8/9] hisi_acc_vfio_pci: Add support for VFIO live migration
On Fri, 4 Mar 2022 08:48:27 +0000
Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com> wrote:

> Hi Alex,
>
> > -----Original Message-----
> > From: Shameerali Kolothum Thodi
> > Sent: 03 March 2022 23:02
> > To: kvm@vger.kernel.org; linux-kernel@vger.kernel.org;
> > linux-crypto@vger.kernel.org
> > Cc: linux-pci@vger.kernel.org; alex.williamson@redhat.com; jgg@nvidia.com;
> > cohuck@redhat.com; mgurtovoy@nvidia.com; yishaih@nvidia.com; Linuxarm
> > <linuxarm@huawei.com>; liulongfang <liulongfang@huawei.com>; Zengtao (B)
> > <prime.zeng@hisilicon.com>; Jonathan Cameron
> > <jonathan.cameron@huawei.com>; Wangzhou (B) <wangzhou1@hisilicon.com>
> > Subject: [PATCH v8 8/9] hisi_acc_vfio_pci: Add support for VFIO live migration
> >
> > From: Longfang Liu <liulongfang@huawei.com>
> >
> > VMs assigned with HiSilicon ACC VF devices can now perform live migration if
> > the VF devices are bind to the hisi_acc_vfio_pci driver.
> >
> > Signed-off-by: Longfang Liu <liulongfang@huawei.com>
> > Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
>
> [...]
> > +
> > +static int vf_qm_check_match(struct hisi_acc_vf_core_device *hisi_acc_vdev,
> > + struct hisi_acc_vf_migration_file *migf) {
> > + struct acc_vf_data *vf_data = &migf->vf_data;
> > + struct hisi_qm *vf_qm = &hisi_acc_vdev->vf_qm;
> > + struct hisi_qm *pf_qm = &hisi_acc_vdev->vf_qm;
>
> Oops, the above has to be,
> struct hisi_qm *pf_qm = hisi_acc_vdev->pf_qm;
>
> This was actually fixed in v6, but now that I rebased mainly to v5, missed it.
> Please let me know if you want a re-spin with the above fix(in case there are no further
> comments) or this is something you can take care.

To confirm, you're looking for this change:

diff --git a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
index aa2e4b6bf598..f2a0c046413f 100644
--- a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
+++ b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
@@ -413,7 +413,7 @@ static int vf_qm_check_match(struct hisi_acc_vf_core_device *hisi_acc_vdev,
{
struct acc_vf_data *vf_data = &migf->vf_data;
struct hisi_qm *vf_qm = &hisi_acc_vdev->vf_qm;
- struct hisi_qm *pf_qm = &hisi_acc_vdev->vf_qm;
+ struct hisi_qm *pf_qm = &hisi_acc_vdev->pf_qm;
struct device *dev = &vf_qm->pdev->dev;
u32 que_iso_state;
int ret;
Right? I can roll that in assuming there are no further comments that
would generate a respin. Thanks,

Alex

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