linux-kernel - [PATCH v3 0/2] s390/uv: Provide host-key hashes in sysfs

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Message-ID: <20241015113940.3088249-1-seiden@linux.ibm.com>
Date: Tue, 15 Oct 2024 13:39:38 +0200
From: Steffen Eiden <seiden@...ux.ibm.com>
To: linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Cc: Ingo Franzki <ifranzki@...ux.ibm.com>,
        Harald Freudenberger <freude@...ux.ibm.com>,
        Christoph Schlameuss <schlameuss@...ux.ibm.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
        Claudio Imbrenda <imbrenda@...ux.ibm.com>
Subject: [PATCH v3 0/2] s390/uv: Provide host-key hashes in sysfs

List the installed host-keys in the sysfs if the machine supports the
Query Ultravisor Keys UVC.

As of now, two types of host-keys are available:
The used/primary host key, and the backup host-key both hastes are
available in a sysfs file.
For forwards compatibility an `all` file is also available that displays
the whole payload (15*32 bytes) and therefore future key hashes.

Sice v2:
	* add rb from Janosch (& fix nits)
	* slightly refactor sysfs directory creation (Heiko)

Since v1:
	* add r-b's from Janoch & Christoph
	* fix minor issues (Janosch)
	* remove an unnecessary UVC availability-check in uv_query_keys
		-> remove Christoph's r-b from patch 2

Steffen Eiden (2):
  s390/uv: Refactor uv-sysfs creation
  s390/uv: Provide host-key hashes in sysfs

 arch/s390/include/asm/uv.h |  17 ++++++
 arch/s390/kernel/uv.c      | 103 +++++++++++++++++++++++++++++++++----
 2 files changed, 110 insertions(+), 10 deletions(-)

-- 
2.43.0