From: Yu Zhang <zhangyu1@linux.microsoft.com>
To: joro@8bytes.org
Cc: iommu@lists.linux.dev, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org, lkp@intel.com,
oe-kbuild-all@lists.linux.dev, joerg.roedel@amd.com,
jgg@nvidia.com, will@kernel.org, robin.murphy@arm.com,
mhklinux@outlook.com, wei.liu@kernel.org,
jacob.pan@linux.microsoft.com,
easwar.hariharan@linux.microsoft.com
Subject: [PATCH 1/2] iommu/hyperv: Add missing PCI dependency for the guest IOMMU driver
Date: Thu, 15 Oct 2026 16:23:50 +0800 [thread overview]
Message-ID: <20261015082351.184252-2-zhangyu1@linux.microsoft.com> (raw)
In-Reply-To: <20261015082351.184252-1-zhangyu1@linux.microsoft.com>
Make HYPERV_PVIOMMU depend on PCI, to fix the possible link failure
of pci_request_acs(), if HYPERV_PVIOMMU is enabled yet with PCI disabled.
Such configuration shall be prevented.
Fixes: 2690d4156b51 ("iommu/hyperv: Add para-virtualized IOMMU support for Hyper-V guest")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202610110511.Nk1sZ8SG-lkp@intel.com/
Signed-off-by: Yu Zhang <zhangyu1@linux.microsoft.com>
---
drivers/iommu/hyperv/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/hyperv/Kconfig b/drivers/iommu/hyperv/Kconfig
index fe24ed65b6a7..f2f993f647c3 100644
--- a/drivers/iommu/hyperv/Kconfig
+++ b/drivers/iommu/hyperv/Kconfig
@@ -2,7 +2,7 @@
# Hyper-V para-virtualized IOMMU driver for Linux guests
config HYPERV_PVIOMMU
bool "Microsoft Hyper-V para-virtualized IOMMU driver for Linux guests"
- depends on X86_64 && HYPERV
+ depends on X86_64 && HYPERV && PCI
select IOMMU_DMA
select GENERIC_PT
select IOMMU_PT
--
2.52.0
next prev parent reply other threads:[~2026-10-15 8:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 8:23 [PATCH 0/2] iommu/hyperv: Fix guest IOMMU build issues Yu Zhang
2026-10-15 8:23 ` Yu Zhang [this message]
2026-10-15 8:23 ` [PATCH 2/2] iommu/hyperv: Make hv_iommu_device static Yu Zhang
2026-10-15 12:36 ` [PATCH 0/2] iommu/hyperv: Fix guest IOMMU build issues Jason Gunthorpe
2026-10-15 15:29 ` Jacob Pan
2026-10-15 15:52 ` Jörg Rödel
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