hv_utils: Support host-initiated restart request

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The hv_utils driver currently supports a "shutdown" operation initiated
from the Hyper-V host. Newer versions of Hyper-V also support a "restart"
operation. So add support for the updated protocol version that has
"restart" support, and perform a clean reboot when such a message is
received from Hyper-V.

To test the restart functionality, run this PowerShell command on the
Hyper-V host:

Restart-VM  <vmname>  -Type Reboot

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Dexuan Cui 2020-01-25 21:49:42 -08:00 • committed by Sasha Levin

parent 9fc3c01a1f

commit 3e9c72056e

1 changed files with 31 additions and 8 deletions

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drivers/hv/hv_util.c

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