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| author | Michael Kelley <mikelley@microsoft.com> | 2022-04-13 04:49:00 +0200 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2022-04-25 17:31:44 +0200 |
| commit | 66200bbcde697dea7f48071d325ea4dec6f66b11 (patch) | |
| tree | af4475e131349685c5a41431812a1bec70b2642a /drivers/hv | |
| parent | Linux 5.18-rc4 (diff) | |
| download | linux-66200bbcde697dea7f48071d325ea4dec6f66b11.tar.xz linux-66200bbcde697dea7f48071d325ea4dec6f66b11.zip | |
Drivers: hv: vmbus: Add VMbus IMC device to unsupported list
Hyper-V may offer an Initial Machine Configuration (IMC) synthetic
device to guest VMs. The device may be used by Windows guests to get
specialization information, such as the hostname. But the device
is not used in Linux and there is no Linux driver, so it is
unsupported.
Currently, the IMC device GUID is not recognized by the VMbus driver,
which results in an "Unknown GUID" error message during boot. Add
the GUID to the list of known but unsupported devices so that the
error message is not generated. Other than avoiding the error message,
there is no change in guest behavior.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1649818140-100953-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 85a2142c9384..50fea31f019f 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -152,6 +152,7 @@ static const struct { { HV_AVMA1_GUID }, { HV_AVMA2_GUID }, { HV_RDV_GUID }, + { HV_IMC_GUID }, }; /* |