On Mon, May 20, 2024 at 09:24:09AM +0800, Baolu Lu wrote:
> On 5/15/24 4:37 PM, Tian, Kevin wrote:
> > > +static ssize_t iommufd_fault_fops_write(struct file *filep, const char
> > > __user
> > > *buf,
> > > + size_t count, loff_t *ppos)
> > > +{
> > > + size_t resp
> From: Baolu Lu
> Sent: Monday, May 20, 2024 9:34 AM
>
> On 5/15/24 4:37 PM, Tian, Kevin wrote:
> >> +
> >> + iopf_group_response(group, response.code);
> > PCIe spec states that a response failure disables the PRI interface. For SR-
> IOV
> > it'd be dangerous allowing user to trigger
On 5/20/24 11:26 AM, Tian, Kevin wrote:
From: Baolu Lu
Sent: Monday, May 20, 2024 8:41 AM
On 5/15/24 3:57 PM, Tian, Kevin wrote:
From: Baolu Lu
Sent: Wednesday, May 8, 2024 6:05 PM
On 2024/5/8 8:11, Jason Gunthorpe wrote:
On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
diff --git
> From: Baolu Lu
> Sent: Monday, May 20, 2024 8:41 AM
>
> On 5/15/24 3:57 PM, Tian, Kevin wrote:
> >> From: Baolu Lu
> >> Sent: Wednesday, May 8, 2024 6:05 PM
> >>
> >> On 2024/5/8 8:11, Jason Gunthorpe wrote:
> >>> On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
> diff --git a/dr
On 5/15/24 4:37 PM, Tian, Kevin wrote:
+ iopf_free_group(group);
+ done += response_size;
+
+ iommufd_put_object(fault->ictx, &idev->obj);
get/put is unpaired:
if (!idev || idev->obj.id != response.dev_id)
idev =
On 5/15/24 4:37 PM, Tian, Kevin wrote:
+
+ iopf_group_response(group, response.code);
PCIe spec states that a response failure disables the PRI interface. For SR-IOV
it'd be dangerous allowing user to trigger such code to VF to close the entire
shared PRI interface.
Just another e
On 5/15/24 4:37 PM, Tian, Kevin wrote:
+static ssize_t iommufd_fault_fops_write(struct file *filep, const char __user
*buf,
+ size_t count, loff_t *ppos)
+{
+ size_t response_size = sizeof(struct iommu_hwpt_page_response);
+ struct iommufd_fault *
On 5/15/24 4:37 PM, Tian, Kevin wrote:
@@ -395,6 +396,8 @@ struct iommufd_device {
/* always the physical device */
struct device *dev;
bool enforce_cache_coherency;
+ /* outstanding faults awaiting response indexed by fault group id */
+ struct xarray faults;
On 5/15/24 3:57 PM, Tian, Kevin wrote:
From: Baolu Lu
Sent: Wednesday, May 8, 2024 6:05 PM
On 2024/5/8 8:11, Jason Gunthorpe wrote:
On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
diff --git a/drivers/iommu/iommu-priv.h b/drivers/iommu/iommu-priv.h
index ae65e0b85d69..1a0450a83bd0 1
> From: Lu Baolu
> Sent: Tuesday, April 30, 2024 10:57 PM
>
> @@ -131,6 +131,9 @@ struct iopf_group {
> struct iommu_attach_handle *attach_handle;
> /* The device's fault data parameter. */
> struct iommu_fault_param *fault_param;
> + /* Used by handler provider to hook the
> From: Baolu Lu
> Sent: Wednesday, May 8, 2024 6:05 PM
>
> On 2024/5/8 8:11, Jason Gunthorpe wrote:
> > On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
> >> diff --git a/drivers/iommu/iommu-priv.h b/drivers/iommu/iommu-priv.h
> >> index ae65e0b85d69..1a0450a83bd0 100644
> >> --- a/driv
On 2024/5/8 8:22, Jason Gunthorpe wrote:
On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
+static ssize_t iommufd_fault_fops_read(struct file *filep, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ size_t fault_size = sizeof(struct iommu_h
On 2024/5/8 8:11, Jason Gunthorpe wrote:
On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
diff --git a/drivers/iommu/iommu-priv.h b/drivers/iommu/iommu-priv.h
index ae65e0b85d69..1a0450a83bd0 100644
--- a/drivers/iommu/iommu-priv.h
+++ b/drivers/iommu/iommu-priv.h
@@ -36,6 +36,10 @@ str
On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
> +static ssize_t iommufd_fault_fops_read(struct file *filep, char __user *buf,
> +size_t count, loff_t *ppos)
> +{
> + size_t fault_size = sizeof(struct iommu_hwpt_pgfault);
> + struct iommufd_fau
On Tue, Apr 30, 2024 at 10:57:06PM +0800, Lu Baolu wrote:
> diff --git a/drivers/iommu/iommu-priv.h b/drivers/iommu/iommu-priv.h
> index ae65e0b85d69..1a0450a83bd0 100644
> --- a/drivers/iommu/iommu-priv.h
> +++ b/drivers/iommu/iommu-priv.h
> @@ -36,6 +36,10 @@ struct iommu_attach_handle {
>
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