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[RFC PATCH v5 05/10] drivers: iommu: change error code when iommu is disabled
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Oleksii Moisieiev <Oleksii_Moisieiev@xxxxxxxx>
- Date: Tue, 22 Jul 2025 11:41:40 +0000
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Oleksii Moisieiev <Oleksii_Moisieiev@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Grygorii Strashko <grygorii_strashko@xxxxxxxx>
- Delivery-date: Tue, 22 Jul 2025 11:41:56 +0000
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- Thread-topic: [RFC PATCH v5 05/10] drivers: iommu: change error code when iommu is disabled
Change -ENOPNOTSUPP error code to -ENXIO when iommu is disabled during
iommu_do_domctl call. As was discussed in [1]
[0]:
https://lore.kernel.org/xen-devel/alpine.DEB.2.22.394.2506171701190.1780597@ubuntu-linux-20-04-desktop/
Signed-off-by: Oleksii Moisieiev <oleksii_moisieiev@xxxxxxxx>
---
Changes in v5:
- set error code to -ENXIO when iommu is disabled
xen/drivers/passthrough/iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index 16aad86973..075bbd1718 100644
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -632,7 +632,7 @@ int iommu_do_domctl(
int ret = -ENODEV;
if ( !(d ? is_iommu_enabled(d) : iommu_enabled) )
- return -EOPNOTSUPP;
+ return -ENXIO;
#ifdef CONFIG_HAS_PCI
ret = iommu_do_pci_domctl(domctl, d, u_domctl);
--
2.34.1
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