Re: [PATCH v5 2/8] ARM: add secure monitor handler to switch to non-secure state

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Andre,

On Thu, 19 Sep 2013 18:06:40 +0200, Andre Przywara
<andre.przywara@xxxxxxxxxx> wrote:

> A prerequisite for using virtualization is to be in HYP mode, which
> requires the CPU to be in non-secure state first.
> Add a new file in arch/arm/cpu/armv7 to hold a monitor handler routine
> which switches the CPU to non-secure state by setting the NS and
> associated bits.
> According to the ARM architecture reference manual this should not be
> done in SVC mode, so we have to setup a SMC handler for this.
> We create a new vector table to avoid interference with other boards.
> The MVBAR register will be programmed later just before the smc call.
> 
> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxxxxx>
> ---
>  arch/arm/cpu/armv7/Makefile      |  4 +++
>  arch/arm/cpu/armv7/nonsec_virt.S | 54 ++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 58 insertions(+)
>  create mode 100644 arch/arm/cpu/armv7/nonsec_virt.S

BTW, this has an "empty line at EOF" warning when applying.

Amicalement,
-- 
Albert.
_______________________________________________
kvmarm mailing list
kvmarm@xxxxxxxxxxxxxxxxxxxxx
https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm




[Index of Archives]     [Linux KVM]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux