Re: [Qemu-devel] [RFC PATCH 00/21] target-arm: add CPU core TrustZone support

[Fedorov Sergey <s.fedorov@samsung.com>]

On 12/03/2013 12:48 PM, Sergey Fedorov wrote:
> This patch set implements a basic support of CPU core TrustZone feature. The
> following major functionalities are implemented:
>    * CPU monitor mode
>    * Separate code translation for each secure state
>    * CPACR & NSACR co-processor access control
>    * Separate TLB for each secure state
>    * Co-processor register banking
>    * SMC instruction
>    * FIQ/IRQ routing to monitor mode
>
> There is no support for banked co-processor register migration, save/load its
> VM state yet. That is an open question how to implement this functionality. Any
> suggestions is greatly appreciated.
>
> This patch set is a request for comments for the proof of concept.
>
> Sergey Fedorov (18):
>    target-arm: move SCR & VBAR into TrustZone register list
>    target-arm: adjust TTBCR for TrustZone feature
>    target-arm: add arm_is_secure() helper
>    target-arm: reject switching to monitor mode from non-secure state
>    target-arm: adjust arm_current_pl() for TrustZone
>    target-arm: adjust SCR CP15 register access rights
>    target-arm: add non-secure Translation Block flag
>    target-arm: implement CPACR register logic
>    target-arm: add NSACR support
>    target-arm: add SDER definition
>    target-arm: split TLB for secure state
>    target-arm: add banked coprocessor register type
>    target-arm: convert appropriate coprocessor registers to banked type
>    target-arm: use c13_context field for CONTEXTIDR
>    target-arm: switch banked CP registers
>    target-arm: add MVBAR support
>    target-arm: implement SMC instruction
>    target-arm: implement IRQ/FIQ routing to Monitor mode
>
> Svetlana Fedoseeva (3):
>    target-arm: add TrustZone CPU feature
>    target-arm: preserve RAO/WI bits of ARMv7 SCTLR
>    target-arm: add CPU Monitor mode
>
>   target-arm/cpu.c       |    6 +-
>   target-arm/cpu.h       |  126 ++++++++++++----
>   target-arm/helper.c    |  308 +++++++++++++++++++++++++++++---------
>   target-arm/machine.c   |   12 +-
>   target-arm/translate.c |  388 ++++++++++++++++++++++++++++++------------------
>   target-arm/translate.h |    2 +
>   6 files changed, 585 insertions(+), 257 deletions(-)
>

We'd like this patch series finally to be merged into mainstream. What 
should be done to achieve this goal?

Best regards,
Sergey Fedorov