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authorMukesh Rathor <mrathor@linux.microsoft.com>2025-09-15 16:46:03 -0700
committerWei Liu <wei.liu@kernel.org>2025-10-01 00:00:42 +0000
commit94b04355e6397a0a70b69c2571fa5c7d9990b835 (patch)
treec8434b608203904829e77067228d12504e94f63d /drivers/hv
parenta3a4d6cb0b968e5d842e79f5dd9d7e07670e9b8a (diff)
downloadlinux-next-94b04355e6397a0a70b69c2571fa5c7d9990b835.tar.gz
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Drivers: hv: Add CONFIG_HYPERV_VMBUS option
At present VMBus driver is hinged off of CONFIG_HYPERV which entails lot of builtin code and encompasses too much. It's not always clear what depends on builtin hv code and what depends on VMBus. Setting CONFIG_HYPERV as a module and fudging the Makefile to switch to builtin adds even more confusion. VMBus is an independent module and should have its own config option. Also, there are scenarios like baremetal dom0/root where support is built in with CONFIG_HYPERV but without VMBus. Lastly, there are more features coming down that use CONFIG_HYPERV and add more dependencies on it. So, create a fine grained HYPERV_VMBUS option and update Kconfigs for dependency on VMBus. Signed-off-by: Mukesh Rathor <mrathor@linux.microsoft.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # drivers/pci Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/Kconfig11
-rw-r--r--drivers/hv/Makefile2
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index e24f6299c376..29f8637f441a 100644
--- a/drivers/hv/Kconfig
+++ b/drivers/hv/Kconfig
@@ -45,18 +45,25 @@ config HYPERV_TIMER
config HYPERV_UTILS
tristate "Microsoft Hyper-V Utilities driver"
- depends on HYPERV && CONNECTOR && NLS
+ depends on HYPERV_VMBUS && CONNECTOR && NLS
depends on PTP_1588_CLOCK_OPTIONAL
help
Select this option to enable the Hyper-V Utilities.
config HYPERV_BALLOON
tristate "Microsoft Hyper-V Balloon driver"
- depends on HYPERV
+ depends on HYPERV_VMBUS
select PAGE_REPORTING
help
Select this option to enable Hyper-V Balloon driver.
+config HYPERV_VMBUS
+ tristate "Microsoft Hyper-V VMBus driver"
+ depends on HYPERV
+ default HYPERV
+ help
+ Select this option to enable Hyper-V Vmbus driver.
+
config MSHV_ROOT
tristate "Microsoft Hyper-V root partition support"
depends on HYPERV && (X86_64 || ARM64)
diff --git a/drivers/hv/Makefile b/drivers/hv/Makefile
index 976189c725dc..4bb41663767d 100644
--- a/drivers/hv/Makefile
+++ b/drivers/hv/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_HYPERV) += hv_vmbus.o
+obj-$(CONFIG_HYPERV_VMBUS) += hv_vmbus.o
obj-$(CONFIG_HYPERV_UTILS) += hv_utils.o
obj-$(CONFIG_HYPERV_BALLOON) += hv_balloon.o
obj-$(CONFIG_MSHV_ROOT) += mshv_root.o