The original design prevented the primary CPU from doing a
warm boot sequence. This patch allows the primary to do warm
boot as well.
Signed-off-by: Mark Dykes <mark.dykes@arm.com>
Change-Id: I6baa50c3dff3051ff8b3e5a922d340634f651867
This patch enable/disable SVE/FPU for Realms depending
upon it's state in NS.
When this feature is enabled, traps to EL3 on SVE/FPU access from
Realms are disabled. However, RMM must ensure that the Realm <-> NS
SVE/FPU registers are not corrupted by each other and Realms do
not leak information to NS.
Change-Id: I0a27a055787976507017b72879ba6458f066624e
Signed-off-by: Subhasish Ghosh <subhasish.ghosh@arm.com>
The RMI command handling in RMMD did not preserve x4 to x7 when
returning to NS caller. Although this is allowed for SMCCCv1.0, this is
not correct as per v1.1. This fixes the same by differentiating the
onward and backward path during SMC handling.
This patch also fixes an issue with the backward path wherein the first
argument was being truncated to 32 bits.
Change-Id: Ibc85d574d5a2178a763975ddb32e456a12e7dc88
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
sha 4ce3e99a3 introduced printf format specifiers for fixed width
types, which uses PRI*64 instead of "ll" for 64 bit values.
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I30472411467061d58cc6ee22407ed3bad2552751
This patch updates and refactors the GPT library and fixes bugs.
- Support all combinations of PGS, PPS, and L0GPTSZ parameters.
- PPS and PGS are set at runtime, L0GPTSZ is read from GPCCR_EL3.
- Use compiler definitions to simplify code.
- Renaming functions to better suit intended uses.
- MMU enabled before GPT APIs called.
- Add comments to make function usage more clear in GPT library.
- Added _rme suffix to file names to differentiate better from the
GPT file system code.
- Renamed gpt_defs.h to gpt_rme_private.h to better separate private
and public code.
- Renamed gpt_core.c to gpt_rme.c to better conform to TF-A precedent.
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I4cbb23b0f81e697baa9fb23ba458aa3f7d1ed919
The changes include:
- A new build option (ENABLE_RME) to enable FEAT_RME
- New image called RMM. RMM is R-EL2 firmware that manages Realms.
When building TF-A, a path to RMM image can be specified using
the "RMM" build flag. If RMM image is not provided, TRP is built
by default and used as RMM image.
- Support for RMM image in fiptool
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I017c23ef02e465a5198baafd665a60858ecd1b25
TRP is a small test payload that implements Realm Monitor
Management (RMM) functionalities. RMM runs in the Realm world
(R-EL2) and manages the execution of Realm VMs and their
interaction with the hypervisor in Normal world.
TRP is used to test the interface between RMM and Normal world
software, known as Realm Management Interface (RMI). Current
functions includes returning RMM version and transitioning
granules from Non-secure to Realm world and vice versa.
More information about RMM can be found at:
https://developer.arm.com/documentation/den0125/latest
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: Ic7b9a1e1f3142ef6458d40150d0b4ba6bd723ea2
This patch introduces the RMM dispatcher into BL31. This
will be the mechanism that will enable communication to
take place between the Realm and non-secure world. Currently
gives the capability for granules to be
transitioned from non-secure type to realm and vice versa.
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Signed-off-by: Subhasish Ghosh <subhasish.ghosh@arm.com>
Change-Id: I1fdc99a4bdd42bc14911aa0c6954b131de309511
Bipin Ravi
Mark Dykes
Subhasish Ghosh
Soby Mathew
Manish Pandey
johpow01
Zelalem Aweke