fix(gpt): remove unused `gpt_disable` function

After GPT protections are enabled, there are no scenarios where they
need to be disabled, similarly to how TZC-400 protections are not
disabled after b

fix(gpt): remove unused `gpt_disable` function

After GPT protections are enabled, there are no scenarios where they
need to be disabled, similarly to how TZC-400 protections are not
disabled after being setup.

Change-Id: I7eae3147130c7a6c3b7b3e9c10e8e7229f32505d
Signed-off-by: Ludovic Mermod <ludovic.mermod@arm.com>

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feat(cpufeat): introduce FEAT_RME_GDI support

This patch adds a new build flag ENABLE_FEAT_RME_GDI to enable this
feature, along with defining various related register fields. At this
point, when en

feat(cpufeat): introduce FEAT_RME_GDI support

This patch adds a new build flag ENABLE_FEAT_RME_GDI to enable this
feature, along with defining various related register fields. At this
point, when enabled, this feature enables the SA and NSP GPI encodings
by setting the corresponding bits in GPCCR_EL3.

Change-Id: I54152fbb3d19b176264e5d16acbcc866725dc290
Signed-off-by: John Powell <john.powell@arm.com>
Signed-off-by: Timothy Hayes <timothy.hayes@arm.com>

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feat(cpufeat): add support for FEAT_RME_GPC2

This change adds support for FEAT_RME_GPC2 and Non-Secure-Only (NSO)
Physical Address Space.

Previously, all non-secure (NS) memory was accessible to th

feat(cpufeat): add support for FEAT_RME_GPC2

This change adds support for FEAT_RME_GPC2 and Non-Secure-Only (NSO)
Physical Address Space.

Previously, all non-secure (NS) memory was accessible to the secure
world and realm world. With GPC2 and the NSO bit in the GPT, memory
can now be restricted to the non-secure world only. This is enabled
automatically on supported systems when ENABLE_RME is true.

Change-Id: I9b70c3a23c5ec7d83bd787d0fb3edd55934f1d05
Signed-off-by: John Powell <john.powell@arm.com>
Signed-off-by: Girish Pathak <girish.pathak@arm.com>

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fix(gpt): fix fill_l1_cont_desc() function

GPT library function fill_l1_cont_desc() writes
contiguous descriptors and is called in a loop
by fill_l1_tbl() which fills out GPI entries in
in a single

fix(gpt): fix fill_l1_cont_desc() function

GPT library function fill_l1_cont_desc() writes
contiguous descriptors and is called in a loop
by fill_l1_tbl() which fills out GPI entries in
in a single L1 table. The loop terminates when
the address of the first granule in range 'first'
exceeds address of the last granule (inclusive)
'last'.
This patch fixes the issue when fill_l1_cont_desc()
was iterating through all matching contiguous block
sizes 512, 32 and 2MB in a loop and filling consecutive
smaller descriptors instead of filling a single one with
a maximum size. This resulted for memory region 0x80000000
of size 1.5GB (3*512MB)to be filled with 2 512MB, 8 32MB and
128 2MB contiguous descriptors instead of 3 512MB descriptors
with build option RME_GPT_MAX_BLOCK=512.
This patch also removes unused definition of ARM_PAS_GPI_ANY
macro in fvp_pas_def.h.

Change-Id: I9fcff512af306a57d17dee0bade74d2f3f79b5e9
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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feat(gpt): statically allocate bitlocks array

Statically allocate 'gpt_bitlock' array of fine-grained
'bitlock_t' data structures in arm_bl31_setup.c.
The amount of memory needed for this array is c

feat(gpt): statically allocate bitlocks array

Statically allocate 'gpt_bitlock' array of fine-grained
'bitlock_t' data structures in arm_bl31_setup.c.
The amount of memory needed for this array is controlled
by 'RME_GPT_BITLOCK_BLOCK' build option and 'PLAT_ARM_PPS'
macro defined in platform_def.h which specifies the size
of protected physical address space in bytes.
'PLAT_ARM_PPS' takes values from 4GB to 4PB supported by
Arm architecture.

Change-Id: Icf620b5039e45df6828d58fca089cad83b0bc669
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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chore(gpt): fix typo in comment

Fix a confusing typo in comment docstring.

Change-Id: I9424454b9fa140bf6a482dea7f8cba24806068b6
Signed-off-by: Moritz Fischer <moritzf@google.com>

fix(gpt): fix GPT library fill_l1_tbl() function

GPT library function fill_l1_tbl() gets 'first' and
'last' parameters which are the start addresses of
the 1st and the last granules in the range to

fix(gpt): fix GPT library fill_l1_tbl() function

GPT library function fill_l1_tbl() gets 'first' and
'last' parameters which are the start addresses of
the 1st and the last granules in the range to fill
L1 GPT table. When RME_GPT_MAX_BLOCK build option
is not 0, condition for 'while' loop should be
changed from 'first < last' to 'first <= last' in
the case of 'first' = 'last' when a single granule
is passed.

Change-Id: I9b49a78b5a2f7a01f51dbce43bd3f3cfbb458fa2
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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fix(gpt): fix RME GPT library bug

This patch fixes fill_l1_tbl() function bug
for RME_GPT_MAX_BLOCK build option set to 0
disabling filling L1 tables with Contiguous
descriptors.

Change-Id: I3eedd6

fix(gpt): fix RME GPT library bug

This patch fixes fill_l1_tbl() function bug
for RME_GPT_MAX_BLOCK build option set to 0
disabling filling L1 tables with Contiguous
descriptors.

Change-Id: I3eedd6c1bb55b7c207bb3630d1ab2fda8f72eb17
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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feat(gpt): configure memory size protected by bitlock

This patch adds support in GPT library for configuration
of the memory block size protected by one bit of 'bitlock'
structure. Build option 'RME

feat(gpt): configure memory size protected by bitlock

This patch adds support in GPT library for configuration
of the memory block size protected by one bit of 'bitlock'
structure. Build option 'RME_GPT_BITLOCK_BLOCK' defines the
number of 512MB blocks covered by each bit. This numeric
parameter must be a power of 2 and can take the values from
0 to 512. Setting this value to 0 chooses a single spinlock
for all GPT L1 table entries. The default value is set to 1
which corresponds to 512MB per bit.

Change-Id: I710d178072894a3ef40daebea701f74d19e8a3d7
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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feat(gpt): add support for large GPT mappings

This patch adds support for large GPT mappings using
Contiguous descriptors. The maximum size of supported
contiguous block in MB is defined in RME_GPT_

feat(gpt): add support for large GPT mappings

This patch adds support for large GPT mappings using
Contiguous descriptors. The maximum size of supported
contiguous block in MB is defined in RME_GPT_MAX_BLOCK
build parameter and takes values 0, 2, 32 and 512 and
by default set to 2 in make_helpers/defaults.mk.
Setting RME_GPT_MAX_BLOCK value to 0 disables use of
Contiguous descriptors.
Function gpt_tlbi_by_pa_ll() and its declaration
are removed from lib/aarch64/misc_helpers.S and
include/arch/aarch64/arch_helpers.h, because the
GPT library now uses tlbirpalos_xxx() functions.

Change-Id: Ia9a59bde1741c5666b4ca1de9324e6dfd6f734eb
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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