Mailing List Archive

This flag was only used in case cx16 is not available, as those code paths no
longer exist, this flag now does basically nothing.

Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Teddy Astie <teddy.astie@vates.tech>
---
xen/drivers/passthrough/vtd/iommu.c | 12 +++---------
xen/drivers/passthrough/vtd/vtd.h | 5 ++---
2 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c
index 47b56f37a9..4b15e6da79 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -1692,15 +1692,9 @@ static int domain_context_mapping(struct domain *domain, u8 devfn,
break;
}

- if ( domain != pdev->domain && pdev->domain != dom_io )
- {
- if ( pdev->domain->is_dying )
- mode |= MAP_OWNER_DYING;
- else if ( drhd &&
- !any_pdev_behind_iommu(pdev->domain, pdev, drhd->iommu) &&
- !pdev->phantom_stride )
- mode |= MAP_SINGLE_DEVICE;
- }
+ if ( domain != pdev->domain && pdev->domain != dom_io &&
+ pdev->domain->is_dying )
+ mode |= MAP_OWNER_DYING;

switch ( pdev->type )
{
diff --git a/xen/drivers/passthrough/vtd/vtd.h b/xen/drivers/passthrough/vtd/vtd.h
index cb2df76eed..43f06a353d 100644
--- a/xen/drivers/passthrough/vtd/vtd.h
+++ b/xen/drivers/passthrough/vtd/vtd.h
@@ -28,9 +28,8 @@
*/
#define MAP_WITH_RMRR (1u << 0)
#define MAP_OWNER_DYING (1u << 1)
-#define MAP_SINGLE_DEVICE (1u << 2)
-#define MAP_ERROR_RECOVERY (1u << 3)
-#define UNMAP_ME_PHANTOM_FUNC (1u << 4)
+#define MAP_ERROR_RECOVERY (1u << 2)
+#define UNMAP_ME_PHANTOM_FUNC (1u << 3)

/* Allow for both IOAPIC and IOSAPIC. */
#define IO_xAPIC_route_entry IO_APIC_route_entry
--
2.44.0



Teddy Astie | Vates XCP-ng Intern

XCP-ng & Xen Orchestra - Vates solutions

web: https://vates.tech