linux-kernel - [PATCH v3 0/2] Allow parameter in smc/hvc calls

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230417174401.19563-1-quic_nkela@quicinc.com>
Date:   Mon, 17 Apr 2023 10:43:59 -0700
From:   Nikunj Kela <quic_nkela@...cinc.com>
To:     <sudeep.holla@....com>
CC:     <cristian.marussi@....com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Nikunj Kela <quic_nkela@...cinc.com>
Subject: [PATCH v3 0/2] Allow parameter in smc/hvc calls

Currently, smc/hvc calls are made with parameters set
to zeros. We are using multiple scmi instances within
a VM. We are sharing the same smc-id(func_id) with all
scmi instance. The hypervisor needs a way to distinguish 
among hvc calls made from different instances.

This patch series introduces new compatible string which
can be used to pass shmem channel address as a parameter
to smc/hvc calls.

---
v3 -> pass shmem channel address as parameter

v2 -> fix the compilation erros on 32bit platform(see below)
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202304100606.kUjhsRYf-lkp@intel.com/

v1 -> original patches

Nikunj Kela (2):
  dt-bindings: firmware: arm,scmi: support for parameter in smc/hvc call
  firmware: arm_scmi: Augment SMC/HVC to allow optional parameter

 .../bindings/firmware/arm,scmi.yaml           |  4 +++
 drivers/firmware/arm_scmi/driver.c            |  1 +
 drivers/firmware/arm_scmi/smc.c               | 25 ++++++++++++++++++-
 3 files changed, 29 insertions(+), 1 deletion(-)

-- 
2.17.1