diff options
| author | Roman Kisel <romank@linux.microsoft.com> | 2025-10-08 16:34:04 -0700 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2025-11-15 06:18:14 +0000 |
| commit | 6802d8af47d1dccd9a74a1f708fb9129244ef843 (patch) | |
| tree | 6c62b055fb17cd5e8f84be69ad19ba7c59bc9a8c /drivers/hv | |
| parent | 92c7053b44b312e1cda765507f45fc170dee1b41 (diff) | |
Drivers: hv: VMBus protocol version 6.0
The confidential VMBus is supported starting from the protocol
version 6.0 onwards.
Provide the required definitions. No functional changes.
Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
Reviewed-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/hyperv_vmbus.h | 2 | ||||
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 12 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index 0b450e53161e..4a01797d4851 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -333,6 +333,8 @@ extern const struct vmbus_channel_message_table_entry /* General vmbus interface */ +bool vmbus_is_confidential(void); + struct hv_device *vmbus_device_create(const guid_t *type, const guid_t *instance, struct vmbus_channel *channel); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 69591dc7bad2..3c414560fa5f 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -57,6 +57,18 @@ int vmbus_irq; int vmbus_interrupt; /* + * If the Confidential VMBus is used, the data on the "wire" is not + * visible to either the host or the hypervisor. + */ +static bool is_confidential; + +bool vmbus_is_confidential(void) +{ + return is_confidential; +} +EXPORT_SYMBOL_GPL(vmbus_is_confidential); + +/* * The panic notifier below is responsible solely for unloading the * vmbus connection, which is necessary in a panic event. * |