diff options
| author | Mukesh Rathor <mrathor@linux.microsoft.com> | 2025-09-15 16:46:03 -0700 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2025-10-01 00:00:42 +0000 |
| commit | 94b04355e6397a0a70b69c2571fa5c7d9990b835 (patch) | |
| tree | c8434b608203904829e77067228d12504e94f63d /include/asm-generic | |
| parent | a3a4d6cb0b968e5d842e79f5dd9d7e07670e9b8a (diff) | |
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 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/mshyperv.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h index dbd4c2f3aee3..64ba6bc807d9 100644 --- a/include/asm-generic/mshyperv.h +++ b/include/asm-generic/mshyperv.h @@ -163,6 +163,7 @@ static inline u64 hv_generate_guest_id(u64 kernel_version) return guest_id; } +#if IS_ENABLED(CONFIG_HYPERV_VMBUS) /* Free the message slot and signal end-of-message if required */ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type) { @@ -198,6 +199,10 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type) } } +extern int vmbus_interrupt; +extern int vmbus_irq; +#endif /* CONFIG_HYPERV_VMBUS */ + int hv_get_hypervisor_version(union hv_hypervisor_version_info *info); void hv_setup_vmbus_handler(void (*handler)(void)); @@ -211,9 +216,6 @@ void hv_setup_crash_handler(void (*handler)(struct pt_regs *regs)); void hv_remove_crash_handler(void); void hv_setup_mshv_handler(void (*handler)(void)); -extern int vmbus_interrupt; -extern int vmbus_irq; - #if IS_ENABLED(CONFIG_HYPERV) /* * Hypervisor's notion of virtual processor ID is different from |