Searched hist:"64 cc6e91e819ccbf5fe3bf8a5c177b8fa8012d8c" (Results 1 – 2 of 2) sorted by relevance
| /rk3399_ARM-atf/make_helpers/ |
| H A D | armv7-a-cpus.mk | 64cc6e91e819ccbf5fe3bf8a5c177b8fa8012d8c Wed Nov 08 13:38:33 UTC 2017 Etienne Carriere <etienne.carriere@linaro.org> ARMv7 may not support Virtualization Extensions
ARMv7-A Virtualization extensions brings new instructions and resources
that were supported by later architectures. Reference ARM ARM Issue C.c
[DDI0406C_C].
ERET and extended MSR/MRS instructions, as specified in [DDI0406C_C] in
ID_PFR1 description of bits[15:12] (Virtualization Extensions):
A value of 0b0001 implies implementation of the HVC, ERET, MRS
(Banked register), and MSR (Banked register) instructions. The ID_ISARs
do not identify whether these instructions are implemented.
UDIV/SDIV were introduced with the Virtualization extensions, even if
not strictly related to the virtualization extensions.
If ARMv7 based platform does not set ARM_CORTEX_Ax=yes, platform
shall define ARMV7_SUPPORTS_VIRTUALIZATION to enable virtualization
extension related resources.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
|
| /rk3399_ARM-atf/common/aarch32/ |
| H A D | debug.S | 64cc6e91e819ccbf5fe3bf8a5c177b8fa8012d8c Wed Nov 08 13:38:33 UTC 2017 Etienne Carriere <etienne.carriere@linaro.org> ARMv7 may not support Virtualization Extensions
ARMv7-A Virtualization extensions brings new instructions and resources
that were supported by later architectures. Reference ARM ARM Issue C.c
[DDI0406C_C].
ERET and extended MSR/MRS instructions, as specified in [DDI0406C_C] in
ID_PFR1 description of bits[15:12] (Virtualization Extensions):
A value of 0b0001 implies implementation of the HVC, ERET, MRS
(Banked register), and MSR (Banked register) instructions. The ID_ISARs
do not identify whether these instructions are implemented.
UDIV/SDIV were introduced with the Virtualization extensions, even if
not strictly related to the virtualization extensions.
If ARMv7 based platform does not set ARM_CORTEX_Ax=yes, platform
shall define ARMV7_SUPPORTS_VIRTUALIZATION to enable virtualization
extension related resources.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
|