From: Mukesh R <mrathor@linux.microsoft.com>
To: hpa@zytor.com, robin.murphy@arm.com, robh@kernel.org,
wei.liu@kernel.org, mrathor@linux.microsoft.com,
mhklinux@outlook.com, muislam@microsoft.com,
namjain@linux.microsoft.com, magnuskulke@linux.microsoft.com,
anbelski@linux.microsoft.com, linux-kernel@vger.kernel.org,
linux-hyperv@vger.kernel.org, iommu@lists.linux.dev,
linux-pci@vger.kernel.org, linux-arch@vger.kernel.org
Cc: kys@microsoft.com, haiyangz@microsoft.com, decui@microsoft.com,
longli@microsoft.com, tglx@kernel.org, mingo@redhat.com,
bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org,
joro@8bytes.org, will@kernel.org, lpieralisi@kernel.org,
kwilczynski@kernel.org, bhelgaas@google.com, arnd@arndb.de
Subject: [PATCH V2 01/11] iommu/hyperv: rename hyperv-iommu.c to hyperv-irq.c
Date: Thu, 30 Apr 2026 17:41:47 -0700 [thread overview]
Message-ID: <20260501004157.3108202-2-mrathor@linux.microsoft.com> (raw)
In-Reply-To: <20260501004157.3108202-1-mrathor@linux.microsoft.com>
This file actually implements irq remapping, so rename to more appropriate
hyperv-irq.c. A new file to implement hyperv iommu will be introduced
later. Also, it should not be tied to HYPERV_IOMMU, but to CONFIG_HYPERV
and IRQ_REMAP. The file already has #ifdef CONFIG_IRQ_REMAP.
Reviewed-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com>
Signed-off-by: Mukesh R <mrathor@linux.microsoft.com>
---
MAINTAINERS | 2 +-
drivers/iommu/Makefile | 2 +-
drivers/iommu/{hyperv-iommu.c => hyperv-irq.c} | 6 +++---
drivers/iommu/irq_remapping.c | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)
rename drivers/iommu/{hyperv-iommu.c => hyperv-irq.c} (99%)
diff --git a/MAINTAINERS b/MAINTAINERS
index d1cc0e12fe1f..f803a6a38fee 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11914,7 +11914,7 @@ F: drivers/clocksource/hyperv_timer.c
F: drivers/hid/hid-hyperv.c
F: drivers/hv/
F: drivers/input/serio/hyperv-keyboard.c
-F: drivers/iommu/hyperv-iommu.c
+F: drivers/iommu/hyperv-irq.c
F: drivers/net/ethernet/microsoft/
F: drivers/net/hyperv/
F: drivers/pci/controller/pci-hyperv-intf.c
diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
index 0275821f4ef9..335ea77cced6 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -30,7 +30,7 @@ obj-$(CONFIG_TEGRA_IOMMU_SMMU) += tegra-smmu.o
obj-$(CONFIG_EXYNOS_IOMMU) += exynos-iommu.o
obj-$(CONFIG_FSL_PAMU) += fsl_pamu.o fsl_pamu_domain.o
obj-$(CONFIG_S390_IOMMU) += s390-iommu.o
-obj-$(CONFIG_HYPERV_IOMMU) += hyperv-iommu.o
+obj-$(CONFIG_HYPERV) += hyperv-irq.o
obj-$(CONFIG_VIRTIO_IOMMU) += virtio-iommu.o
obj-$(CONFIG_IOMMU_SVA) += iommu-sva.o
obj-$(CONFIG_IOMMU_IOPF) += io-pgfault.o
diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-irq.c
similarity index 99%
rename from drivers/iommu/hyperv-iommu.c
rename to drivers/iommu/hyperv-irq.c
index 479103261ae6..d11076f906fb 100644
--- a/drivers/iommu/hyperv-iommu.c
+++ b/drivers/iommu/hyperv-irq.c
@@ -8,6 +8,8 @@
* Author : Lan Tianyu <Tianyu.Lan@microsoft.com>
*/
+#ifdef CONFIG_IRQ_REMAP
+
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
@@ -24,8 +26,6 @@
#include "irq_remapping.h"
-#ifdef CONFIG_IRQ_REMAP
-
/*
* According 82093AA IO-APIC spec , IO APIC has a 24-entry Interrupt
* Redirection Table. Hyper-V exposes one single IO-APIC and so define
@@ -331,4 +331,4 @@ static const struct irq_domain_ops hyperv_root_ir_domain_ops = {
.free = hyperv_root_irq_remapping_free,
};
-#endif
+#endif /* CONFIG_IRQ_REMAP */
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index c2443659812a..41bf65e4ea88 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -108,7 +108,7 @@ int __init irq_remapping_prepare(void)
else if (IS_ENABLED(CONFIG_AMD_IOMMU) &&
amd_iommu_irq_ops.prepare() == 0)
remap_ops = &amd_iommu_irq_ops;
- else if (IS_ENABLED(CONFIG_HYPERV_IOMMU) &&
+ else if (IS_ENABLED(CONFIG_HYPERV) &&
hyperv_irq_remap_ops.prepare() == 0)
remap_ops = &hyperv_irq_remap_ops;
else
--
2.51.2.vfs.0.1
next prev parent reply other threads:[~2026-05-01 0:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 0:41 [PATCH V2 00/11] PCI passthru on Hyper-V (Part I) Mukesh R
2026-05-01 0:41 ` Mukesh R [this message]
2026-05-01 0:41 ` [PATCH V2 02/11] x86/hyperv: cosmetic changes in irqdomain.c for readability Mukesh R
2026-05-01 0:41 ` [PATCH V2 03/11] mshv: Provide a way to get partition id if running in a VMM process Mukesh R
2026-05-01 0:41 ` [PATCH V2 04/11] mshv: Declarations and definitions for VFIO-MSHV bridge device Mukesh R
2026-05-01 0:41 ` [PATCH V2 05/11] mshv: Implement mshv bridge device for VFIO Mukesh R
2026-05-01 0:41 ` [PATCH V2 06/11] mshv: Add ioctl support for MSHV-VFIO bridge device Mukesh R
2026-05-01 0:41 ` [PATCH V2 07/11] mshv: Import data structs around device passthru from hyperv headers Mukesh R
2026-05-01 0:41 ` [PATCH V2 08/11] PCI: hv: Build device id for a VMBus device, export PCI devid function Mukesh R
2026-05-01 16:33 ` Bjorn Helgaas
2026-05-01 18:38 ` Easwar Hariharan
2026-05-01 0:41 ` [PATCH V2 09/11] x86/hyperv: Implement hyperv virtual IOMMU Mukesh R
2026-05-01 0:41 ` [PATCH V2 10/11] mshv: Populate mmio mappings for PCI passthru Mukesh R
2026-05-01 0:41 ` [PATCH V2 11/11] mshv: Mark mem regions as non-movable upfront if device passthru Mukesh R
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