s390/uvdevice: Add 'Lock Secret Store' UVC

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Userspace can call the Lock Secret Store Ultravisor Call
using IOCTLs on the uvdevice. The Lock Secret Store UV call
disables all additions of secrets for the future.

The uvdevice is merely transporting the request from userspace to the
Ultravisor.

Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/r/20230615100533.3996107-6-seiden@linux.ibm.com
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Message-Id: <20230615100533.3996107-6-seiden@linux.ibm.com>

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This commit is contained in:

Steffen Eiden 2023-06-15 12:05:31 +02:00 • committed by Janosch Frank

parent b96b3ce272

commit 2d8a26acaf

3 changed files with 44 additions and 0 deletions

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2

arch/s390/include/asm/uv.h

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3

arch/s390/include/uapi/asm/uvdevice.h

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39

drivers/s390/char/uvdevice.c

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