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d429688754
u-boot-brain/arch/arm/cpu/armv7
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Andre Przywara d429688754 ARM: extend non-secure switch to also go into HYP mode 
For the KVM and XEN hypervisors to be usable, we need to enter the
kernel in HYP mode. Now that we already are in non-secure state,
HYP mode switching is within short reach.

While doing the non-secure switch, we have to enable the HVC
instruction and setup the HYP mode HVBAR (while still secure).

The actual switch is done by dropping back from a HYP mode handler
without actually leaving HYP mode, so we introduce a new handler
routine in our new secure exception vector table.

In the assembly switching routine we save and restore the banked LR
and SP registers around the hypercall to do the actual HYP mode
switch.

The C routine first checks whether we are in HYP mode already and
also whether the virtualization extensions are available. It also
checks whether the HYP mode switch was finally successful.
The bootm command part only calls the new function after the
non-secure switch.

Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
2013-10-03 21:28:55 +02:00
..
am33xx am335x:Handle worst case scenario for Errata 1.0.24 2013-09-20 16:57:40 -04:00
at91 arm: atmel: add gmac support for sama5d3xek board 2013-08-22 16:49:54 +02:00
exynos Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
highbank Merge branch 'u-boot/master' into u-boot-arm/master 2013-07-25 17:57:46 +02:00
mx5 usb: ehci-mx5: Use 'bool' instead of 'unsigned char' 2013-08-26 21:56:34 +02:00
mx6 mx6: Fix use of improper value in enable_ipu_clock 2013-09-27 13:53:35 +02:00
omap3 arm: omap3: fix SRAM copy and execution sequence 2013-08-28 11:44:58 -04:00
omap4 ARM: OMAP4470: Add Elpida EDB8164B3PF memory configuration 2013-08-28 11:44:58 -04:00
omap5 ARM: OMAP5: Avoid writing into LDO SRAM bits 2013-09-20 16:57:40 -04:00
omap-common ARM: OMAP5: Avoid writing into LDO SRAM bits 2013-09-20 16:57:40 -04:00
rmobile ARM: refactor compiler options in config.mk 2013-09-23 17:03:05 +02:00
s5p-common Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
s5pc1xx Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
socfpga socfpga: Creating driver for Reset Manager 2013-09-06 12:09:06 +02:00
tegra20 config: don't define CONFIG_ARCH_DEVICE_TREE 2013-08-02 18:30:11 -04:00
tegra30 config: don't define CONFIG_ARCH_DEVICE_TREE 2013-08-02 18:30:11 -04:00
tegra114 config: don't define CONFIG_ARCH_DEVICE_TREE 2013-08-02 18:30:11 -04:00
tegra-common Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
u8500 Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
vf610 Merge branch 'master' of git://git.denx.de/u-boot-i2c 2013-07-24 09:50:24 -04:00
zynq arm: zynq: Fix timer loadaddress 2013-09-23 16:26:32 +02:00
cache_v7.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
config.mk ARM: refactor compiler options in config.mk 2013-09-23 17:03:05 +02:00
cpu.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
lowlevel_init.S ARM: use r9 for gd 2013-09-23 18:00:02 +02:00
Makefile ARM: extend non-secure switch to also go into HYP mode 2013-10-03 21:28:55 +02:00
nonsec_virt.S ARM: extend non-secure switch to also go into HYP mode 2013-10-03 21:28:55 +02:00
start.S Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
syslib.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
virt-v7.c ARM: extend non-secure switch to also go into HYP mode 2013-10-03 21:28:55 +02:00