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xlat: Fix MISRA defects

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Fix defects of MISRA C-2012 rules 8.13, 10.1, 10.3, 10.4, 10.8, 11.6,
14.4, 15.7, 17.8, 20.10, 20.12, 21.1 and Directive 4.9.

Change-Id: I7ff61e71733908596dbafe2e99d99b4fce9765bd
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
This commit is contained in:
Antonio Nino Diaz 2018-07-24 10:20:53 +01:00
parent 60e062fb0e
commit e7b9886c7c
19 changed files with 537 additions and 495 deletions
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17
include/lib/xlat_tables/aarch32/xlat_tables_aarch32.h
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@ -4,8 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_AARCH32_H__
#define __XLAT_TABLES_AARCH32_H__
#ifndef XLAT_TABLES_AARCH32_H
#define XLAT_TABLES_AARCH32_H
#include <arch.h>
#include <utils_def.h>
@ -24,7 +24,7 @@
* The define below specifies the first table level that allows block
* descriptors.
*/
#if PAGE_SIZE != (4 * 1024)
#if PAGE_SIZE != PAGE_SIZE_4KB
#error "Invalid granule size. AArch32 supports 4KB pages only."
#endif
@ -43,8 +43,8 @@
* [1] See the ARMv8-A Architecture Reference Manual (DDI 0487A.j) for more
* information, Section G4.6.5
*/
#define MIN_VIRT_ADDR_SPACE_SIZE (ULL(1) << (32 - TTBCR_TxSZ_MAX))
#define MAX_VIRT_ADDR_SPACE_SIZE (ULL(1) << (32 - TTBCR_TxSZ_MIN))
#define MIN_VIRT_ADDR_SPACE_SIZE (ULL(1) << (U(32) - TTBCR_TxSZ_MAX))
#define MAX_VIRT_ADDR_SPACE_SIZE (ULL(1) << (U(32) - TTBCR_TxSZ_MIN))
/*
* Here we calculate the initial lookup level from the value of the given
@ -66,7 +66,8 @@
* valid. Therefore, the caller is expected to check it is the case using the
* CHECK_VIRT_ADDR_SPACE_SIZE() macro first.
*/
#define GET_XLAT_TABLE_LEVEL_BASE(_virt_addr_space_size) \
(((_virt_addr_space_size) > (ULL(1) << L1_XLAT_ADDRESS_SHIFT)) ? 1 : 2)
#define GET_XLAT_TABLE_LEVEL_BASE(_virt_addr_space_sz) \
(((_virt_addr_space_sz) > (ULL(1) << L1_XLAT_ADDRESS_SHIFT)) ? \
U(1) : U(2))
#endif /* __XLAT_TABLES_AARCH32_H__ */
#endif /* XLAT_TABLES_AARCH32_H */

24
include/lib/xlat_tables/aarch64/xlat_tables_aarch64.h
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@ -4,8 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_AARCH64_H__
#define __XLAT_TABLES_AARCH64_H__
#ifndef XLAT_TABLES_AARCH64_H
#define XLAT_TABLES_AARCH64_H
#include <arch.h>
#include <utils_def.h>
@ -30,9 +30,9 @@ unsigned long long tcr_physical_addr_size_bits(unsigned long long max_addr);
* The define below specifies the first table level that allows block
* descriptors.
*/
#if PAGE_SIZE == (4 * 1024)
#if PAGE_SIZE == PAGE_SIZE_4KB
# define MIN_LVL_BLOCK_DESC U(1)
#elif PAGE_SIZE == (16 * 1024) || PAGE_SIZE == (64 * 1024)
#elif (PAGE_SIZE == PAGE_SIZE_16KB) || (PAGE_SIZE == PAGE_SIZE_64KB)
# define MIN_LVL_BLOCK_DESC U(2)
#endif
@ -50,8 +50,8 @@ unsigned long long tcr_physical_addr_size_bits(unsigned long long max_addr);
* information:
* Page 1730: 'Input address size', 'For all translation stages'.
*/
#define MIN_VIRT_ADDR_SPACE_SIZE (ULL(1) << (64 - TCR_TxSZ_MAX))
#define MAX_VIRT_ADDR_SPACE_SIZE (ULL(1) << (64 - TCR_TxSZ_MIN))
#define MIN_VIRT_ADDR_SPACE_SIZE (ULL(1) << (U(64) - TCR_TxSZ_MAX))
#define MAX_VIRT_ADDR_SPACE_SIZE (ULL(1) << (U(64) - TCR_TxSZ_MIN))
/*
* Here we calculate the initial lookup level from the value of the given
@ -74,10 +74,10 @@ unsigned long long tcr_physical_addr_size_bits(unsigned long long max_addr);
* valid. Therefore, the caller is expected to check it is the case using the
* CHECK_VIRT_ADDR_SPACE_SIZE() macro first.
*/
#define GET_XLAT_TABLE_LEVEL_BASE(_virt_addr_space_size) \
(((_virt_addr_space_size) > (ULL(1) << L0_XLAT_ADDRESS_SHIFT)) \
? 0 \
: (((_virt_addr_space_size) > (ULL(1) << L1_XLAT_ADDRESS_SHIFT)) \
? 1 : 2))
#define GET_XLAT_TABLE_LEVEL_BASE(_virt_addr_space_sz) \
(((_virt_addr_space_sz) > (ULL(1) << L0_XLAT_ADDRESS_SHIFT)) \
? 0U \
: (((_virt_addr_space_sz) > (ULL(1) << L1_XLAT_ADDRESS_SHIFT)) \
? 1U : 2U))
#endif /* __XLAT_TABLES_AARCH64_H__ */
#endif /* XLAT_TABLES_AARCH64_H */

7
include/lib/xlat_tables/xlat_mmu_helpers.h
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@ -4,8 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_MMU_HELPERS_H__
#define __XLAT_MMU_HELPERS_H__
#ifndef XLAT_MMU_HELPERS_H
#define XLAT_MMU_HELPERS_H
/*
* The following flags are passed to enable_mmu_xxx() to override the default
@ -52,6 +52,7 @@
#ifndef __ASSEMBLY__
#include <stdint.h>
#include <sys/types.h>
/*
@ -82,4 +83,4 @@ size_t xlat_arch_get_max_supported_granule_size(void);
#endif /* __ASSEMBLY__ */
#endif /* __XLAT_MMU_HELPERS_H__ */
#endif /* XLAT_MMU_HELPERS_H */

8
include/lib/xlat_tables/xlat_tables.h
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@ -1,11 +1,11 @@
/*
* Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_H__
#define __XLAT_TABLES_H__
#ifndef XLAT_TABLES_H
#define XLAT_TABLES_H
#include <xlat_tables_defs.h>
@ -92,4 +92,4 @@ void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
void mmap_add(const mmap_region_t *mm);
#endif /*__ASSEMBLY__*/
#endif /* __XLAT_TABLES_H__ */
#endif /* XLAT_TABLES_H */

12
include/lib/xlat_tables/xlat_tables_arch.h
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@ -1,11 +1,11 @@
/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_ARCH_H__
#define __XLAT_TABLES_ARCH_H__
#ifndef XLAT_TABLES_ARCH_H
#define XLAT_TABLES_ARCH_H
#ifdef AARCH32
#include "aarch32/xlat_tables_aarch32.h"
@ -21,8 +21,8 @@
* limits. Not that these limits are different for AArch32 and AArch64.
*/
#define CHECK_VIRT_ADDR_SPACE_SIZE(size) \
(((unsigned long long)(size) >= MIN_VIRT_ADDR_SPACE_SIZE) && \
((unsigned long long)(size) <= MAX_VIRT_ADDR_SPACE_SIZE) && \
(((unsigned long long)(size) >= MIN_VIRT_ADDR_SPACE_SIZE) && \
((unsigned long long)(size) <= MAX_VIRT_ADDR_SPACE_SIZE) && \
IS_POWER_OF_TWO(size))
/*
@ -40,4 +40,4 @@
((addr_space_size) >> \
XLAT_ADDR_SHIFT(GET_XLAT_TABLE_LEVEL_BASE(addr_space_size)))
#endif /* __XLAT_TABLES_ARCH_H__ */
#endif /* XLAT_TABLES_ARCH_H */

34
include/lib/xlat_tables/xlat_tables_defs.h
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@ -4,8 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_DEFS_H__
#define __XLAT_TABLES_DEFS_H__
#ifndef XLAT_TABLES_DEFS_H
#define XLAT_TABLES_DEFS_H
#include <arch.h>
#include <utils_def.h>
@ -24,6 +24,10 @@
#define TWO_MB_INDEX(x) ((x) >> TWO_MB_SHIFT)
#define FOUR_KB_INDEX(x) ((x) >> FOUR_KB_SHIFT)
#define PAGE_SIZE_4KB U(4096)
#define PAGE_SIZE_16KB U(16384)
#define PAGE_SIZE_64KB U(65536)
#define INVALID_DESC U(0x0)
/*
* A block descriptor points to a region of memory bigger than the granule size
@ -66,8 +70,8 @@
*/
#define PAGE_SIZE_SHIFT FOUR_KB_SHIFT
#define PAGE_SIZE (U(1) << PAGE_SIZE_SHIFT)
#define PAGE_SIZE_MASK (PAGE_SIZE - 1)
#define IS_PAGE_ALIGNED(addr) (((addr) & PAGE_SIZE_MASK) == 0)
#define PAGE_SIZE_MASK (PAGE_SIZE - U(1))
#define IS_PAGE_ALIGNED(addr) (((addr) & PAGE_SIZE_MASK) == U(0))
#define XLAT_ENTRY_SIZE_SHIFT U(3) /* Each MMU table entry is 8 bytes (1 << 3) */
#define XLAT_ENTRY_SIZE (U(1) << XLAT_ENTRY_SIZE_SHIFT)
@ -80,7 +84,7 @@
/* Values for number of entries in each MMU translation table */
#define XLAT_TABLE_ENTRIES_SHIFT (XLAT_TABLE_SIZE_SHIFT - XLAT_ENTRY_SIZE_SHIFT)
#define XLAT_TABLE_ENTRIES (U(1) << XLAT_TABLE_ENTRIES_SHIFT)
#define XLAT_TABLE_ENTRIES_MASK (XLAT_TABLE_ENTRIES - 1)
#define XLAT_TABLE_ENTRIES_MASK (XLAT_TABLE_ENTRIES - U(1))
/* Values to convert a memory address to an index into a translation table */
#define L3_XLAT_ADDRESS_SHIFT PAGE_SIZE_SHIFT
@ -90,9 +94,9 @@
#define XLAT_ADDR_SHIFT(level) (PAGE_SIZE_SHIFT + \
((XLAT_TABLE_LEVEL_MAX - (level)) * XLAT_TABLE_ENTRIES_SHIFT))
#define XLAT_BLOCK_SIZE(level) ((u_register_t)1 << XLAT_ADDR_SHIFT(level))
#define XLAT_BLOCK_SIZE(level) (UL(1) << XLAT_ADDR_SHIFT(level))
/* Mask to get the bits used to index inside a block of a certain level */
#define XLAT_BLOCK_MASK(level) (XLAT_BLOCK_SIZE(level) - 1)
#define XLAT_BLOCK_MASK(level) (XLAT_BLOCK_SIZE(level) - UL(1))
/* Mask to get the address bits common to a block of a certain table level*/
#define XLAT_ADDR_MASK(level) (~XLAT_BLOCK_MASK(level))
/*
@ -111,13 +115,13 @@
* when stage 1 translations can only support one VA range.
*/
#define AP2_SHIFT U(0x7)
#define AP2_RO U(0x1)
#define AP2_RW U(0x0)
#define AP2_RO ULL(0x1)
#define AP2_RW ULL(0x0)
#define AP1_SHIFT U(0x6)
#define AP1_ACCESS_UNPRIVILEGED U(0x1)
#define AP1_NO_ACCESS_UNPRIVILEGED U(0x0)
#define AP1_RES1 U(0x1)
#define AP1_ACCESS_UNPRIVILEGED ULL(0x1)
#define AP1_NO_ACCESS_UNPRIVILEGED ULL(0x0)
#define AP1_RES1 ULL(0x1)
/*
* The following definitions must all be passed to the LOWER_ATTRS() macro to
@ -129,9 +133,9 @@
#define AP_NO_ACCESS_UNPRIVILEGED (AP1_NO_ACCESS_UNPRIVILEGED << 4)
#define AP_ONE_VA_RANGE_RES1 (AP1_RES1 << 4)
#define NS (U(0x1) << 3)
#define ATTR_NON_CACHEABLE_INDEX U(0x2)
#define ATTR_DEVICE_INDEX U(0x1)
#define ATTR_IWBWA_OWBWA_NTR_INDEX U(0x0)
#define ATTR_NON_CACHEABLE_INDEX ULL(0x2)
#define ATTR_DEVICE_INDEX ULL(0x1)
#define ATTR_IWBWA_OWBWA_NTR_INDEX ULL(0x0)
#define LOWER_ATTRS(x) (((x) & U(0xfff)) << 2)
/* Normal Memory, Outer Write-Through non-transient, Inner Non-cacheable */

16
include/lib/xlat_tables/xlat_tables_v2.h
View File

@ -4,8 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_V2_H__
#define __XLAT_TABLES_V2_H__
#ifndef XLAT_TABLES_V2_H
#define XLAT_TABLES_V2_H
#include <xlat_tables_defs.h>
#include <xlat_tables_v2_helpers.h>
@ -27,7 +27,7 @@
/* Helper macro to define an mmap_region_t. */
#define MAP_REGION(_pa, _va, _sz, _attr) \
_MAP_REGION_FULL_SPEC(_pa, _va, _sz, _attr, REGION_DEFAULT_GRANULARITY)
MAP_REGION_FULL_SPEC(_pa, _va, _sz, _attr, REGION_DEFAULT_GRANULARITY)
/* Helper macro to define an mmap_region_t with an identity mapping. */
#define MAP_REGION_FLAT(_adr, _sz, _attr) \
@ -44,7 +44,7 @@
* equivalent to the MAP_REGION() macro.
*/
#define MAP_REGION2(_pa, _va, _sz, _attr, _gr) \
_MAP_REGION_FULL_SPEC(_pa, _va, _sz, _attr, _gr)
MAP_REGION_FULL_SPEC(_pa, _va, _sz, _attr, _gr)
/*
* Shifts and masks to access fields of an mmap attribute
@ -163,7 +163,7 @@ typedef struct xlat_ctx xlat_ctx_t;
*/
#define REGISTER_XLAT_CONTEXT(_ctx_name, _mmap_count, _xlat_tables_count, \
_virt_addr_space_size, _phy_addr_space_size) \
_REGISTER_XLAT_CONTEXT_FULL_SPEC(_ctx_name, (_mmap_count), \
REGISTER_XLAT_CONTEXT_FULL_SPEC(_ctx_name, (_mmap_count), \
(_xlat_tables_count), \
(_virt_addr_space_size), \
(_phy_addr_space_size), \
@ -183,7 +183,7 @@ typedef struct xlat_ctx xlat_ctx_t;
#define REGISTER_XLAT_CONTEXT2(_ctx_name, _mmap_count, _xlat_tables_count, \
_virt_addr_space_size, _phy_addr_space_size, \
_xlat_regime, _section_name) \
_REGISTER_XLAT_CONTEXT_FULL_SPEC(_ctx_name, (_mmap_count), \
REGISTER_XLAT_CONTEXT_FULL_SPEC(_ctx_name, (_mmap_count), \
(_xlat_tables_count), \
(_virt_addr_space_size), \
(_phy_addr_space_size), \
@ -296,7 +296,7 @@ int mmap_remove_dynamic_region_ctx(xlat_ctx_t *ctx,
* translation tables are not modified by any other code while this function is
* executing.
*/
int change_mem_attributes(xlat_ctx_t *ctx, uintptr_t base_va, size_t size,
int change_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va, size_t size,
uint32_t attr);
/*
@ -318,4 +318,4 @@ int get_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va,
uint32_t *attributes);
#endif /*__ASSEMBLY__*/
#endif /* __XLAT_TABLES_V2_H__ */
#endif /* XLAT_TABLES_V2_H */

104
include/lib/xlat_tables/xlat_tables_v2_helpers.h
View File

@ -9,10 +9,10 @@
* used outside of this library code.
*/
#ifndef __XLAT_TABLES_V2_HELPERS_H__
#define __XLAT_TABLES_V2_HELPERS_H__
#ifndef XLAT_TABLES_V2_HELPERS_H
#define XLAT_TABLES_V2_HELPERS_H
#ifndef __XLAT_TABLES_V2_H__
#ifndef XLAT_TABLES_V2_H
#error "Do not include this header file directly. Include xlat_tables_v2.h instead."
#endif
@ -32,7 +32,7 @@ struct mmap_region;
* the fields of the structure but its parameter list is not guaranteed to
* remain stable as we add members to mmap_region_t.
*/
#define _MAP_REGION_FULL_SPEC(_pa, _va, _sz, _attr, _gr) \
#define MAP_REGION_FULL_SPEC(_pa, _va, _sz, _attr, _gr) \
{ \
.base_pa = (_pa), \
.base_va = (_va), \
@ -58,7 +58,7 @@ struct xlat_ctx {
* null entry.
*/
struct mmap_region *mmap;
unsigned int mmap_num;
int mmap_num;
/*
* Array of finer-grain translation tables.
@ -66,7 +66,7 @@ struct xlat_ctx {
* contain both level-2 and level-3 entries.
*/
uint64_t (*tables)[XLAT_TABLE_ENTRIES];
unsigned int tables_num;
int tables_num;
/*
* Keep track of how many regions are mapped in each table. The base
* table can't be unmapped so it isn't needed to keep track of it.
@ -75,7 +75,7 @@ struct xlat_ctx {
int *tables_mapped_regions;
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
unsigned int next_table;
int next_table;
/*
* Base translation table. It doesn't need to have the same amount of
@ -96,7 +96,7 @@ struct xlat_ctx {
unsigned int base_level;
/* Set to 1 when the translation tables are initialized. */
unsigned int initialized;
int initialized;
/*
* Translation regime managed by this xlat_ctx_t. It should be one of
@ -106,60 +106,60 @@ struct xlat_ctx {
};
#if PLAT_XLAT_TABLES_DYNAMIC
#define _ALLOC_DYNMAP_STRUCT(_ctx_name, _xlat_tables_count) \
#define XLAT_ALLOC_DYNMAP_STRUCT(_ctx_name, _xlat_tables_count) \
static int _ctx_name##_mapped_regions[_xlat_tables_count];
#define _REGISTER_DYNMAP_STRUCT(_ctx_name) \
#define XLAT_REGISTER_DYNMAP_STRUCT(_ctx_name) \
.tables_mapped_regions = _ctx_name##_mapped_regions,
#else
#define _ALLOC_DYNMAP_STRUCT(_ctx_name, _xlat_tables_count) \
#define XLAT_ALLOC_DYNMAP_STRUCT(_ctx_name, _xlat_tables_count) \
/* do nothing */
#define _REGISTER_DYNMAP_STRUCT(_ctx_name) \
#define XLAT_REGISTER_DYNMAP_STRUCT(_ctx_name) \
/* do nothing */
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
#define _REGISTER_XLAT_CONTEXT_FULL_SPEC(_ctx_name, _mmap_count, _xlat_tables_count, \
_virt_addr_space_size, _phy_addr_space_size, \
_xlat_regime, _section_name) \
CASSERT(CHECK_VIRT_ADDR_SPACE_SIZE(_virt_addr_space_size), \
assert_invalid_virtual_addr_space_size_for_##_ctx_name); \
\
CASSERT(CHECK_PHY_ADDR_SPACE_SIZE(_phy_addr_space_size), \
assert_invalid_physical_addr_space_sizefor_##_ctx_name); \
\
static mmap_region_t _ctx_name##_mmap[_mmap_count + 1]; \
\
static uint64_t _ctx_name##_xlat_tables[_xlat_tables_count] \
[XLAT_TABLE_ENTRIES] \
__aligned(XLAT_TABLE_SIZE) __section(_section_name); \
\
static uint64_t _ctx_name##_base_xlat_table \
[GET_NUM_BASE_LEVEL_ENTRIES(_virt_addr_space_size)] \
__aligned(GET_NUM_BASE_LEVEL_ENTRIES(_virt_addr_space_size) \
* sizeof(uint64_t)); \
\
_ALLOC_DYNMAP_STRUCT(_ctx_name, _xlat_tables_count) \
\
static xlat_ctx_t _ctx_name##_xlat_ctx = { \
.va_max_address = (_virt_addr_space_size) - 1, \
.pa_max_address = (_phy_addr_space_size) - 1, \
.mmap = _ctx_name##_mmap, \
.mmap_num = (_mmap_count), \
.base_level = GET_XLAT_TABLE_LEVEL_BASE(_virt_addr_space_size), \
.base_table = _ctx_name##_base_xlat_table, \
.base_table_entries = \
GET_NUM_BASE_LEVEL_ENTRIES(_virt_addr_space_size), \
.tables = _ctx_name##_xlat_tables, \
.tables_num = _xlat_tables_count, \
_REGISTER_DYNMAP_STRUCT(_ctx_name) \
.xlat_regime = (_xlat_regime), \
.max_pa = 0, \
.max_va = 0, \
.next_table = 0, \
.initialized = 0, \
#define REGISTER_XLAT_CONTEXT_FULL_SPEC(_ctx_name, _mmap_count, \
_xlat_tables_count, _virt_addr_space_size, \
_phy_addr_space_size, _xlat_regime, _section_name)\
CASSERT(CHECK_VIRT_ADDR_SPACE_SIZE(_virt_addr_space_size), \
assert_invalid_virtual_addr_space_size_for_##_ctx_name);\
\
CASSERT(CHECK_PHY_ADDR_SPACE_SIZE(_phy_addr_space_size), \
assert_invalid_physical_addr_space_sizefor_##_ctx_name);\
\
static mmap_region_t _ctx_name##_mmap[_mmap_count + 1]; \
\
static uint64_t _ctx_name##_xlat_tables[_xlat_tables_count] \
[XLAT_TABLE_ENTRIES] \
__aligned(XLAT_TABLE_SIZE) __section(_section_name); \
\
static uint64_t _ctx_name##_base_xlat_table \
[GET_NUM_BASE_LEVEL_ENTRIES(_virt_addr_space_size)] \
__aligned(GET_NUM_BASE_LEVEL_ENTRIES(_virt_addr_space_size)\
* sizeof(uint64_t)); \
\
XLAT_ALLOC_DYNMAP_STRUCT(_ctx_name, _xlat_tables_count) \
\
static xlat_ctx_t _ctx_name##_xlat_ctx = { \
.va_max_address = (_virt_addr_space_size) - 1UL, \
.pa_max_address = (_phy_addr_space_size) - 1ULL, \
.mmap = _ctx_name##_mmap, \
.mmap_num = (_mmap_count), \
.base_level = GET_XLAT_TABLE_LEVEL_BASE(_virt_addr_space_size),\
.base_table = _ctx_name##_base_xlat_table, \
.base_table_entries = \
GET_NUM_BASE_LEVEL_ENTRIES(_virt_addr_space_size),\
.tables = _ctx_name##_xlat_tables, \
.tables_num = _xlat_tables_count, \
XLAT_REGISTER_DYNMAP_STRUCT(_ctx_name) \
.xlat_regime = (_xlat_regime), \
.max_pa = 0U, \
.max_va = 0U, \
.next_table = 0, \
.initialized = 0, \
}
#endif /*__ASSEMBLY__*/
#endif /* __XLAT_TABLES_V2_HELPERS_H__ */
#endif /* XLAT_TABLES_V2_HELPERS_H */

32
lib/xlat_tables/aarch32/xlat_tables.c
View File

@ -13,7 +13,7 @@
#include <xlat_tables.h>
#include "../xlat_tables_private.h"
#if ARM_ARCH_MAJOR == 7 && !defined(ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING)
#if (ARM_ARCH_MAJOR == 7) && !defined(ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING)
#error ARMv7 target does not support LPAE MMU descriptors
#endif
@ -34,16 +34,16 @@ static unsigned long long get_max_supported_pa(void)
}
#endif /* ENABLE_ASSERTIONS */
int xlat_arch_current_el(void)
unsigned int xlat_arch_current_el(void)
{
/*
* If EL3 is in AArch32 mode, all secure PL1 modes (Monitor, System,
* SVC, Abort, UND, IRQ and FIQ modes) execute at EL3.
*/
return 3;
return 3U;
}
uint64_t xlat_arch_get_xn_desc(int el __unused)
uint64_t xlat_arch_get_xn_desc(unsigned int el __unused)
{
return UPPER_ATTRS(XN);
}
@ -53,12 +53,12 @@ void init_xlat_tables(void)
unsigned long long max_pa;
uintptr_t max_va;
print_mmap();
init_xlation_table(0, base_xlation_table, XLAT_TABLE_LEVEL_BASE,
init_xlation_table(0U, base_xlation_table, XLAT_TABLE_LEVEL_BASE,
&max_va, &max_pa);
assert(max_va <= PLAT_VIRT_ADDR_SPACE_SIZE - 1);
assert(max_pa <= PLAT_PHY_ADDR_SPACE_SIZE - 1);
assert((PLAT_PHY_ADDR_SPACE_SIZE - 1) <= get_max_supported_pa());
assert(max_va <= (PLAT_VIRT_ADDR_SPACE_SIZE - 1U));
assert(max_pa <= (PLAT_PHY_ADDR_SPACE_SIZE - 1U));
assert((PLAT_PHY_ADDR_SPACE_SIZE - 1U) <= get_max_supported_pa());
}
/*******************************************************************************
@ -71,7 +71,7 @@ void enable_mmu_secure(unsigned int flags)
uint64_t ttbr0;
assert(IS_IN_SECURE());
assert((read_sctlr() & SCTLR_M_BIT) == 0);
assert((read_sctlr() & SCTLR_M_BIT) == 0U);
/* Set attributes in the right indices of the MAIR */
mair0 = MAIR0_ATTR_SET(ATTR_DEVICE, ATTR_DEVICE_INDEX);
@ -87,18 +87,18 @@ void enable_mmu_secure(unsigned int flags)
/*
* Set TTBCR bits as well. Set TTBR0 table properties. Disable TTBR1.
*/
if (flags & XLAT_TABLE_NC) {
int t0sz = 32 - __builtin_ctzll(PLAT_VIRT_ADDR_SPACE_SIZE);
if ((flags & XLAT_TABLE_NC) != 0U) {
/* Inner & outer non-cacheable non-shareable. */
ttbcr = TTBCR_EAE_BIT |
TTBCR_SH0_NON_SHAREABLE | TTBCR_RGN0_OUTER_NC |
TTBCR_RGN0_INNER_NC |
(32 - __builtin_ctzll(PLAT_VIRT_ADDR_SPACE_SIZE));
TTBCR_RGN0_INNER_NC | (uint32_t) t0sz;
} else {
/* Inner & outer WBWA & shareable. */
ttbcr = TTBCR_EAE_BIT |
TTBCR_SH0_INNER_SHAREABLE | TTBCR_RGN0_OUTER_WBA |
TTBCR_RGN0_INNER_WBA |
(32 - __builtin_ctzll(PLAT_VIRT_ADDR_SPACE_SIZE));
TTBCR_RGN0_INNER_WBA | (uint32_t) t0sz;
}
ttbcr |= TTBCR_EPD1_BIT;
write_ttbcr(ttbcr);
@ -106,7 +106,7 @@ void enable_mmu_secure(unsigned int flags)
/* Set TTBR0 bits as well */
ttbr0 = (uintptr_t) base_xlation_table;
write64_ttbr0(ttbr0);
write64_ttbr1(0);
write64_ttbr1(0U);
/*
* Ensure all translation table writes have drained
@ -120,7 +120,7 @@ void enable_mmu_secure(unsigned int flags)
sctlr = read_sctlr();
sctlr |= SCTLR_WXN_BIT | SCTLR_M_BIT;
if (flags & DISABLE_DCACHE)
if ((flags & DISABLE_DCACHE) != 0U)
sctlr &= ~SCTLR_C_BIT;
else
sctlr |= SCTLR_C_BIT;

44
lib/xlat_tables/aarch64/xlat_tables.c
View File

@ -31,26 +31,26 @@ static unsigned long long calc_physical_addr_size_bits(
unsigned long long max_addr)
{
/* Physical address can't exceed 48 bits */
assert((max_addr & ADDR_MASK_48_TO_63) == 0);
assert((max_addr & ADDR_MASK_48_TO_63) == 0U);
/* 48 bits address */
if (max_addr & ADDR_MASK_44_TO_47)
if ((max_addr & ADDR_MASK_44_TO_47) != 0U)
return TCR_PS_BITS_256TB;
/* 44 bits address */
if (max_addr & ADDR_MASK_42_TO_43)
if ((max_addr & ADDR_MASK_42_TO_43) != 0U)
return TCR_PS_BITS_16TB;
/* 42 bits address */
if (max_addr & ADDR_MASK_40_TO_41)
if ((max_addr & ADDR_MASK_40_TO_41) != 0U)
return TCR_PS_BITS_4TB;
/* 40 bits address */
if (max_addr & ADDR_MASK_36_TO_39)
if ((max_addr & ADDR_MASK_36_TO_39) != 0U)
return TCR_PS_BITS_1TB;
/* 36 bits address */
if (max_addr & ADDR_MASK_32_TO_35)
if ((max_addr & ADDR_MASK_32_TO_35) != 0U)
return TCR_PS_BITS_64GB;
return TCR_PS_BITS_4GB;
@ -78,21 +78,21 @@ static unsigned long long get_max_supported_pa(void)
}
#endif /* ENABLE_ASSERTIONS */
int xlat_arch_current_el(void)
unsigned int xlat_arch_current_el(void)
{
int el = GET_EL(read_CurrentEl());
unsigned int el = (unsigned int)GET_EL(read_CurrentEl());
assert(el > 0);
assert(el > 0U);
return el;
}
uint64_t xlat_arch_get_xn_desc(int el)
uint64_t xlat_arch_get_xn_desc(unsigned int el)
{
if (el == 3) {
if (el == 3U) {
return UPPER_ATTRS(XN);
} else {
assert(el == 1);
assert(el == 1U);
return UPPER_ATTRS(PXN);
}
}
@ -102,12 +102,12 @@ void init_xlat_tables(void)
unsigned long long max_pa;
uintptr_t max_va;
print_mmap();
init_xlation_table(0, base_xlation_table, XLAT_TABLE_LEVEL_BASE,
init_xlation_table(0U, base_xlation_table, XLAT_TABLE_LEVEL_BASE,
&max_va, &max_pa);
assert(max_va <= PLAT_VIRT_ADDR_SPACE_SIZE - 1);
assert(max_pa <= PLAT_PHY_ADDR_SPACE_SIZE - 1);
assert((PLAT_PHY_ADDR_SPACE_SIZE - 1) <= get_max_supported_pa());
assert(max_va <= (PLAT_VIRT_ADDR_SPACE_SIZE - 1U));
assert(max_pa <= (PLAT_PHY_ADDR_SPACE_SIZE - 1U));
assert((PLAT_PHY_ADDR_SPACE_SIZE - 1U) <= get_max_supported_pa());
tcr_ps_bits = calc_physical_addr_size_bits(max_pa);
}
@ -129,7 +129,7 @@ void init_xlat_tables(void)
uint32_t sctlr; \
\
assert(IS_IN_EL(_el)); \
assert((read_sctlr_el##_el() & SCTLR_M_BIT) == 0); \
assert((read_sctlr_el##_el() & SCTLR_M_BIT) == 0U); \
\
/* Set attributes in the right indices of the MAIR */ \
mair = MAIR_ATTR_SET(ATTR_DEVICE, ATTR_DEVICE_INDEX); \
@ -144,16 +144,18 @@ void init_xlat_tables(void)
\
/* Set TCR bits as well. */ \
/* Set T0SZ to (64 - width of virtual address space) */ \
if (flags & XLAT_TABLE_NC) { \
int t0sz = 64 - __builtin_ctzll(PLAT_VIRT_ADDR_SPACE_SIZE);\
\
if ((flags & XLAT_TABLE_NC) != 0U) { \
/* Inner & outer non-cacheable non-shareable. */\
tcr = TCR_SH_NON_SHAREABLE | \
TCR_RGN_OUTER_NC | TCR_RGN_INNER_NC | \
(64 - __builtin_ctzll(PLAT_VIRT_ADDR_SPACE_SIZE));\
(uint64_t) t0sz; \
} else { \
/* Inner & outer WBWA & shareable. */ \
tcr = TCR_SH_INNER_SHAREABLE | \
TCR_RGN_OUTER_WBA | TCR_RGN_INNER_WBA | \
(64 - __builtin_ctzll(PLAT_VIRT_ADDR_SPACE_SIZE));\
(uint64_t) t0sz; \
} \
tcr |= _tcr_extra; \
write_tcr_el##_el(tcr); \
@ -172,7 +174,7 @@ void init_xlat_tables(void)
sctlr = read_sctlr_el##_el(); \
sctlr |= SCTLR_WXN_BIT | SCTLR_M_BIT; \
\
if (flags & DISABLE_DCACHE) \
if ((flags & DISABLE_DCACHE) != 0U) \
sctlr &= ~SCTLR_C_BIT; \
else \
sctlr |= SCTLR_C_BIT; \

121
lib/xlat_tables/xlat_tables_common.c
View File

@ -32,6 +32,7 @@
#endif
#define UNSET_DESC ~0ULL
#define MT_UNKNOWN ~0U
static uint64_t xlat_tables[MAX_XLAT_TABLES][XLAT_TABLE_ENTRIES]
__aligned(XLAT_TABLE_SIZE) __section("xlat_table");
@ -55,7 +56,7 @@ void print_mmap(void)
#if LOG_LEVEL >= LOG_LEVEL_VERBOSE
debug_print("mmap:\n");
mmap_region_t *mm = mmap;
while (mm->size) {
while (mm->size != 0U) {
debug_print(" VA:%p PA:0x%llx size:0x%zx attr:0x%x\n",
(void *)mm->base_va, mm->base_pa,
mm->size, mm->attr);
@ -69,46 +70,47 @@ void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
size_t size, unsigned int attr)
{
mmap_region_t *mm = mmap;
mmap_region_t *mm_last = mm + ARRAY_SIZE(mmap) - 1;
unsigned long long end_pa = base_pa + size - 1;
uintptr_t end_va = base_va + size - 1;
const mmap_region_t *mm_last = mm + ARRAY_SIZE(mmap) - 1U;
unsigned long long end_pa = base_pa + size - 1U;
uintptr_t end_va = base_va + size - 1U;
assert(IS_PAGE_ALIGNED(base_pa));
assert(IS_PAGE_ALIGNED(base_va));
assert(IS_PAGE_ALIGNED(size));
if (!size)
if (size == 0U)
return;
assert(base_pa < end_pa); /* Check for overflows */
assert(base_va < end_va);
assert((base_va + (uintptr_t)size - (uintptr_t)1) <=
(PLAT_VIRT_ADDR_SPACE_SIZE - 1));
(PLAT_VIRT_ADDR_SPACE_SIZE - 1U));
assert((base_pa + (unsigned long long)size - 1ULL) <=
(PLAT_PHY_ADDR_SPACE_SIZE - 1));
(PLAT_PHY_ADDR_SPACE_SIZE - 1U));
#if ENABLE_ASSERTIONS
/* Check for PAs and VAs overlaps with all other regions */
for (mm = mmap; mm->size; ++mm) {
uintptr_t mm_end_va = mm->base_va + mm->size - 1;
uintptr_t mm_end_va = mm->base_va + mm->size - 1U;
/*
* Check if one of the regions is completely inside the other
* one.
*/
int fully_overlapped_va =
((base_va >= mm->base_va) && (end_va <= mm_end_va)) ||
((mm->base_va >= base_va) && (mm_end_va <= end_va));
(((base_va >= mm->base_va) && (end_va <= mm_end_va)) ||
((mm->base_va >= base_va) && (mm_end_va <= end_va)))
? 1 : 0;
/*
* Full VA overlaps are only allowed if both regions are
* identity mapped (zero offset) or have the same VA to PA
* offset. Also, make sure that it's not the exact same area.
*/
if (fully_overlapped_va) {
if (fully_overlapped_va == 1) {
assert((mm->base_va - mm->base_pa) ==
(base_va - base_pa));
assert((base_va != mm->base_va) || (size != mm->size));
@ -122,12 +124,12 @@ void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
unsigned long long mm_end_pa =
mm->base_pa + mm->size - 1;
int separated_pa =
(end_pa < mm->base_pa) || (base_pa > mm_end_pa);
int separated_va =
(end_va < mm->base_va) || (base_va > mm_end_va);
int separated_pa = ((end_pa < mm->base_pa) ||
(base_pa > mm_end_pa)) ? 1 : 0;
int separated_va = ((end_va < mm->base_va) ||
(base_va > mm_end_va)) ? 1 : 0;
assert(separated_va && separated_pa);
assert((separated_va == 1) && (separated_pa == 1));
}
}
@ -136,7 +138,7 @@ void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
#endif /* ENABLE_ASSERTIONS */
/* Find correct place in mmap to insert new region */
while (mm->base_va < base_va && mm->size)
while ((mm->base_va < base_va) && (mm->size != 0U))
++mm;
/*
@ -154,10 +156,10 @@ void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
++mm;
/* Make room for new region by moving other regions up by one place */
memmove(mm + 1, mm, (uintptr_t)mm_last - (uintptr_t)mm);
(void)memmove(mm + 1, mm, (uintptr_t)mm_last - (uintptr_t)mm);
/* Check we haven't lost the empty sentinal from the end of the array */
assert(mm_last->size == 0);
assert(mm_last->size == 0U);
mm->base_pa = base_pa;
mm->base_va = base_va;
@ -172,9 +174,12 @@ void mmap_add_region(unsigned long long base_pa, uintptr_t base_va,
void mmap_add(const mmap_region_t *mm)
{
while (mm->size) {
mmap_add_region(mm->base_pa, mm->base_va, mm->size, mm->attr);
++mm;
const mmap_region_t *mm_cursor = mm;
while (mm_cursor->size != 0U) {
mmap_add_region(mm_cursor->base_pa, mm_cursor->base_va,
mm_cursor->size, mm_cursor->attr);
mm_cursor++;
}
}
@ -185,7 +190,7 @@ static uint64_t mmap_desc(unsigned int attr, unsigned long long addr_pa,
int mem_type;
/* Make sure that the granularity is fine enough to map this address. */
assert((addr_pa & XLAT_BLOCK_MASK(level)) == 0);
assert((addr_pa & XLAT_BLOCK_MASK(level)) == 0U);
desc = addr_pa;
/*
@ -193,8 +198,8 @@ static uint64_t mmap_desc(unsigned int attr, unsigned long long addr_pa,
* rest.
*/
desc |= (level == XLAT_TABLE_LEVEL_MAX) ? PAGE_DESC : BLOCK_DESC;
desc |= (attr & MT_NS) ? LOWER_ATTRS(NS) : 0;
desc |= (attr & MT_RW) ? LOWER_ATTRS(AP_RW) : LOWER_ATTRS(AP_RO);
desc |= ((attr & MT_NS) != 0U) ? LOWER_ATTRS(NS) : 0U;
desc |= ((attr & MT_RW) != 0U) ? LOWER_ATTRS(AP_RW) : LOWER_ATTRS(AP_RO);
/*
* Always set the access flag, as this library assumes access flag
* faults aren't managed.
@ -239,7 +244,7 @@ static uint64_t mmap_desc(unsigned int attr, unsigned long long addr_pa,
* For read-only memory, rely on the MT_EXECUTE/MT_EXECUTE_NEVER
* attribute to figure out the value of the XN bit.
*/
if ((attr & MT_RW) || (attr & MT_EXECUTE_NEVER)) {
if (((attr & MT_RW) != 0U) || ((attr & MT_EXECUTE_NEVER) != 0U)) {
desc |= execute_never_mask;
}
@ -253,9 +258,9 @@ static uint64_t mmap_desc(unsigned int attr, unsigned long long addr_pa,
debug_print((mem_type == MT_MEMORY) ? "MEM" :
((mem_type == MT_NON_CACHEABLE) ? "NC" : "DEV"));
debug_print(attr & MT_RW ? "-RW" : "-RO");
debug_print(attr & MT_NS ? "-NS" : "-S");
debug_print(attr & MT_EXECUTE_NEVER ? "-XN" : "-EXEC");
debug_print(((attr & MT_RW) != 0U) ? "-RW" : "-RO");
debug_print(((attr & MT_NS) != 0U) ? "-NS" : "-S");
debug_print(((attr & MT_EXECUTE_NEVER) != 0U) ? "-XN" : "-EXEC");
return desc;
}
@ -265,14 +270,14 @@ static uint64_t mmap_desc(unsigned int attr, unsigned long long addr_pa,
*
* On success, this function returns 0.
* If there are partial overlaps (meaning that a smaller size is needed) or if
* the region can't be found in the given area, it returns -1. In this case the
* value pointed by attr should be ignored by the caller.
* the region can't be found in the given area, it returns MT_UNKNOWN. In this
* case the value pointed by attr should be ignored by the caller.
*/
static int mmap_region_attr(mmap_region_t *mm, uintptr_t base_va,
size_t size, unsigned int *attr)
static unsigned int mmap_region_attr(const mmap_region_t *mm, uintptr_t base_va,
size_t size, unsigned int *attr)
{
/* Don't assume that the area is contained in the first region */
int ret = -1;
unsigned int ret = MT_UNKNOWN;
/*
* Get attributes from last (innermost) region that contains the
@ -289,26 +294,26 @@ static int mmap_region_attr(mmap_region_t *mm, uintptr_t base_va,
* in region 2. The loop shouldn't stop at region 2 as inner regions
* have priority over outer regions, it should stop at region 5.
*/
for (;; ++mm) {
for ( ; ; ++mm) {
if (!mm->size)
if (mm->size == 0U)
return ret; /* Reached end of list */
if (mm->base_va > base_va + size - 1)
if (mm->base_va > (base_va + size - 1U))
return ret; /* Next region is after area so end */
if (mm->base_va + mm->size - 1 < base_va)
if ((mm->base_va + mm->size - 1U) < base_va)
continue; /* Next region has already been overtaken */
if (!ret && mm->attr == *attr)
if ((ret == 0U) && (mm->attr == *attr))
continue; /* Region doesn't override attribs so skip */
if (mm->base_va > base_va ||
mm->base_va + mm->size - 1 < base_va + size - 1)
return -1; /* Region doesn't fully cover our area */
if ((mm->base_va > base_va) ||
((mm->base_va + mm->size - 1U) < (base_va + size - 1U)))
return MT_UNKNOWN; /* Region doesn't fully cover area */
*attr = mm->attr;
ret = 0;
ret = 0U;
}
return ret;
}
@ -318,7 +323,8 @@ static mmap_region_t *init_xlation_table_inner(mmap_region_t *mm,
uint64_t *table,
unsigned int level)
{
assert(level >= XLAT_TABLE_LEVEL_MIN && level <= XLAT_TABLE_LEVEL_MAX);
assert((level >= XLAT_TABLE_LEVEL_MIN) &&
(level <= XLAT_TABLE_LEVEL_MAX));
unsigned int level_size_shift =
L0_XLAT_ADDRESS_SHIFT - level * XLAT_TABLE_ENTRIES_SHIFT;
@ -331,10 +337,10 @@ static mmap_region_t *init_xlation_table_inner(mmap_region_t *mm,
do {
uint64_t desc = UNSET_DESC;
if (!mm->size) {
if (mm->size == 0U) {
/* Done mapping regions; finish zeroing the table */
desc = INVALID_DESC;
} else if (mm->base_va + mm->size - 1 < base_va) {
} else if ((mm->base_va + mm->size - 1U) < base_va) {
/* This area is after the region so get next region */
++mm;
continue;
@ -343,7 +349,7 @@ static mmap_region_t *init_xlation_table_inner(mmap_region_t *mm,
debug_print("%s VA:%p size:0x%llx ", get_level_spacer(level),
(void *)base_va, (unsigned long long)level_size);
if (mm->base_va > base_va + level_size - 1) {
if (mm->base_va > (base_va + level_size - 1U)) {
/* Next region is after this area. Nothing to map yet */
desc = INVALID_DESC;
/* Make sure that the current level allows block descriptors */
@ -354,9 +360,10 @@ static mmap_region_t *init_xlation_table_inner(mmap_region_t *mm,
* it will return the innermost region's attributes.
*/
unsigned int attr;
int r = mmap_region_attr(mm, base_va, level_size, &attr);
unsigned int r = mmap_region_attr(mm, base_va,
level_size, &attr);
if (!r) {
if (r == 0U) {
desc = mmap_desc(attr,
base_va - mm->base_va + mm->base_pa,
level);
@ -365,13 +372,15 @@ static mmap_region_t *init_xlation_table_inner(mmap_region_t *mm,
if (desc == UNSET_DESC) {
/* Area not covered by a region so need finer table */
uint64_t *new_table = xlat_tables[next_xlat++];
uint64_t *new_table = xlat_tables[next_xlat];
next_xlat++;
assert(next_xlat <= MAX_XLAT_TABLES);
desc = TABLE_DESC | (uintptr_t)new_table;
/* Recurse to fill in new table */
mm = init_xlation_table_inner(mm, base_va,
new_table, level+1);
new_table, level + 1U);
}
debug_print("\n");
@ -379,7 +388,7 @@ static mmap_region_t *init_xlation_table_inner(mmap_region_t *mm,
*table++ = desc;
base_va += level_size;
} while ((base_va & level_index_mask) &&
(base_va - 1 < PLAT_VIRT_ADDR_SPACE_SIZE - 1));
((base_va - 1U) < (PLAT_VIRT_ADDR_SPACE_SIZE - 1U)));
return mm;
}
@ -388,15 +397,15 @@ void init_xlation_table(uintptr_t base_va, uint64_t *table,
unsigned int level, uintptr_t *max_va,
unsigned long long *max_pa)
{
int el = xlat_arch_current_el();
unsigned int el = xlat_arch_current_el();
execute_never_mask = xlat_arch_get_xn_desc(el);
if (el == 3) {
if (el == 3U) {
ap1_mask = LOWER_ATTRS(AP_ONE_VA_RANGE_RES1);
} else {
assert(el == 1);
ap1_mask = 0;
assert(el == 1U);
ap1_mask = 0ULL;
}
init_xlation_table_inner(mmap, base_va, table, level);

12
lib/xlat_tables/xlat_tables_private.h
View File

@ -1,11 +1,11 @@
/*
* Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_PRIVATE_H__
#define __XLAT_TABLES_PRIVATE_H__
#ifndef XLAT_TABLES_PRIVATE_H
#define XLAT_TABLES_PRIVATE_H
#include <cassert.h>
#include <platform_def.h>
@ -44,17 +44,17 @@ CASSERT(CHECK_PHY_ADDR_SPACE_SIZE(PLAT_PHY_ADDR_SPACE_SIZE),
void print_mmap(void);
/* Returns the current Exception Level. The returned EL must be 1 or higher. */
int xlat_arch_current_el(void);
unsigned int xlat_arch_current_el(void);
/*
* Returns the bit mask that has to be ORed to the rest of a translation table
* descriptor so that execution of code is prohibited at the given Exception
* Level.
*/
uint64_t xlat_arch_get_xn_desc(int el);
uint64_t xlat_arch_get_xn_desc(unsigned int el);
void init_xlation_table(uintptr_t base_va, uint64_t *table,
unsigned int level, uintptr_t *max_va,
unsigned long long *max_pa);
#endif /* __XLAT_TABLES_PRIVATE_H__ */
#endif /* XLAT_TABLES_PRIVATE_H */

19
lib/xlat_tables_v2/aarch32/xlat_tables_arch.c
View File

@ -14,7 +14,7 @@
#include <xlat_tables_v2.h>
#include "../xlat_tables_private.h"
#if ARM_ARCH_MAJOR == 7 && !defined(ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING)
#if (ARM_ARCH_MAJOR == 7) && !defined(ARMV7_SUPPORTS_LARGE_PAGE_ADDRESSING)
#error ARMv7 target does not support LPAE MMU descriptors
#endif
@ -27,12 +27,12 @@ int xlat_arch_is_granule_size_supported(size_t size)
* The library uses the long descriptor translation table format, which
* supports 4 KiB pages only.
*/
return (size == (4U * 1024U));
return (size == PAGE_SIZE_4KB) ? 1 : 0;
}
size_t xlat_arch_get_max_supported_granule_size(void)
{
return 4U * 1024U;
return PAGE_SIZE_4KB;
}
#if ENABLE_ASSERTIONS
@ -90,7 +90,7 @@ void xlat_arch_tlbi_va_sync(void)
isb();
}
int xlat_arch_current_el(void)
unsigned int xlat_arch_current_el(void)
{
/*
* If EL3 is in AArch32 mode, all secure PL1 modes (Monitor, System,
@ -100,7 +100,7 @@ int xlat_arch_current_el(void)
* in AArch64 except for the XN bits, but we set and unset them at the
* same time, so there's no difference in practice.
*/
return 1;
return 1U;
}
/*******************************************************************************
@ -143,20 +143,23 @@ void setup_mmu_cfg(uint64_t *params, unsigned int flags,
* 32 bits.
*/
if (max_va != UINT32_MAX) {
uintptr_t virtual_addr_space_size = max_va + 1;
uintptr_t virtual_addr_space_size = max_va + 1U;
assert(CHECK_VIRT_ADDR_SPACE_SIZE(virtual_addr_space_size));
/*
* __builtin_ctzll(0) is undefined but here we are guaranteed
* that virtual_addr_space_size is in the range [1, UINT32_MAX].
*/
ttbcr |= 32 - __builtin_ctzll(virtual_addr_space_size);
int t0sz = 32 - __builtin_ctzll(virtual_addr_space_size);
ttbcr |= (uint32_t) t0sz;
}
/*
* Set the cacheability and shareability attributes for memory
* associated with translation table walks using TTBR0.
*/
if (flags & XLAT_TABLE_NC) {
if ((flags & XLAT_TABLE_NC) != 0U) {
/* Inner & outer non-cacheable non-shareable. */
ttbcr |= TTBCR_SH0_NON_SHAREABLE | TTBCR_RGN0_OUTER_NC |
TTBCR_RGN0_INNER_NC;

74
lib/xlat_tables_v2/aarch64/xlat_tables_arch.c
View File

@ -20,58 +20,58 @@ int xlat_arch_is_granule_size_supported(size_t size)
{
u_register_t id_aa64mmfr0_el1 = read_id_aa64mmfr0_el1();
if (size == (4U * 1024U)) {
return ((id_aa64mmfr0_el1 >> ID_AA64MMFR0_EL1_TGRAN4_SHIFT) &
if (size == PAGE_SIZE_4KB) {
return (((id_aa64mmfr0_el1 >> ID_AA64MMFR0_EL1_TGRAN4_SHIFT) &
ID_AA64MMFR0_EL1_TGRAN4_MASK) ==
ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED;
} else if (size == (16U * 1024U)) {
return ((id_aa64mmfr0_el1 >> ID_AA64MMFR0_EL1_TGRAN16_SHIFT) &
ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED) ? 1 : 0;
} else if (size == PAGE_SIZE_16KB) {
return (((id_aa64mmfr0_el1 >> ID_AA64MMFR0_EL1_TGRAN16_SHIFT) &
ID_AA64MMFR0_EL1_TGRAN16_MASK) ==
ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED;
} else if (size == (64U * 1024U)) {
return ((id_aa64mmfr0_el1 >> ID_AA64MMFR0_EL1_TGRAN64_SHIFT) &
ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED) ? 1 : 0;
} else if (size == PAGE_SIZE_64KB) {
return (((id_aa64mmfr0_el1 >> ID_AA64MMFR0_EL1_TGRAN64_SHIFT) &
ID_AA64MMFR0_EL1_TGRAN64_MASK) ==
ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED;
ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED) ? 1 : 0;
} else {
return 0;
}
return 0;
}
size_t xlat_arch_get_max_supported_granule_size(void)
{
if (xlat_arch_is_granule_size_supported(64U * 1024U)) {
return 64U * 1024U;
} else if (xlat_arch_is_granule_size_supported(16U * 1024U)) {
return 16U * 1024U;
if (xlat_arch_is_granule_size_supported(PAGE_SIZE_64KB) != 0) {
return PAGE_SIZE_64KB;
} else if (xlat_arch_is_granule_size_supported(PAGE_SIZE_16KB) != 0) {
return PAGE_SIZE_16KB;
} else {
assert(xlat_arch_is_granule_size_supported(4U * 1024U));
return 4U * 1024U;
assert(xlat_arch_is_granule_size_supported(PAGE_SIZE_4KB) != 0);
return PAGE_SIZE_4KB;
}
}
unsigned long long tcr_physical_addr_size_bits(unsigned long long max_addr)
{
/* Physical address can't exceed 48 bits */
assert((max_addr & ADDR_MASK_48_TO_63) == 0);
assert((max_addr & ADDR_MASK_48_TO_63) == 0U);
/* 48 bits address */
if (max_addr & ADDR_MASK_44_TO_47)
if ((max_addr & ADDR_MASK_44_TO_47) != 0U)
return TCR_PS_BITS_256TB;
/* 44 bits address */
if (max_addr & ADDR_MASK_42_TO_43)
if ((max_addr & ADDR_MASK_42_TO_43) != 0U)
return TCR_PS_BITS_16TB;
/* 42 bits address */
if (max_addr & ADDR_MASK_40_TO_41)
if ((max_addr & ADDR_MASK_40_TO_41) != 0U)
return TCR_PS_BITS_4TB;
/* 40 bits address */
if (max_addr & ADDR_MASK_36_TO_39)
if ((max_addr & ADDR_MASK_36_TO_39) != 0U)
return TCR_PS_BITS_1TB;
/* 36 bits address */
if (max_addr & ADDR_MASK_32_TO_35)
if ((max_addr & ADDR_MASK_32_TO_35) != 0U)
return TCR_PS_BITS_64GB;
return TCR_PS_BITS_4GB;
@ -102,12 +102,12 @@ unsigned long long xlat_arch_get_max_supported_pa(void)
int is_mmu_enabled_ctx(const xlat_ctx_t *ctx)
{
if (ctx->xlat_regime == EL1_EL0_REGIME) {
assert(xlat_arch_current_el() >= 1);
return (read_sctlr_el1() & SCTLR_M_BIT) != 0;
assert(xlat_arch_current_el() >= 1U);
return ((read_sctlr_el1() & SCTLR_M_BIT) != 0U) ? 1 : 0;
} else {
assert(ctx->xlat_regime == EL3_REGIME);
assert(xlat_arch_current_el() >= 3);
return (read_sctlr_el3() & SCTLR_M_BIT) != 0;
assert(xlat_arch_current_el() >= 3U);
return ((read_sctlr_el3() & SCTLR_M_BIT) != 0U) ? 1 : 0;
}
}
@ -137,11 +137,11 @@ void xlat_arch_tlbi_va(uintptr_t va, int xlat_regime)
* exception level (see section D4.9.2 of the ARM ARM rev B.a).
*/
if (xlat_regime == EL1_EL0_REGIME) {
assert(xlat_arch_current_el() >= 1);
assert(xlat_arch_current_el() >= 1U);
tlbivaae1is(TLBI_ADDR(va));
} else {
assert(xlat_regime == EL3_REGIME);
assert(xlat_arch_current_el() >= 3);
assert(xlat_arch_current_el() >= 3U);
tlbivae3is(TLBI_ADDR(va));
}
}
@ -169,11 +169,11 @@ void xlat_arch_tlbi_va_sync(void)
isb();
}
int xlat_arch_current_el(void)
unsigned int xlat_arch_current_el(void)
{
int el = GET_EL(read_CurrentEl());
unsigned int el = (unsigned int)GET_EL(read_CurrentEl());
assert(el > 0);
assert(el > 0U);
return el;
}
@ -194,22 +194,24 @@ void setup_mmu_cfg(uint64_t *params, unsigned int flags,
* Limit the input address ranges and memory region sizes translated
* using TTBR0 to the given virtual address space size.
*/
assert(max_va < ((uint64_t) UINTPTR_MAX));
assert(max_va < ((uint64_t)UINTPTR_MAX));
virtual_addr_space_size = max_va + 1;
virtual_addr_space_size = (uintptr_t)max_va + 1U;
assert(CHECK_VIRT_ADDR_SPACE_SIZE(virtual_addr_space_size));
/*
* __builtin_ctzll(0) is undefined but here we are guaranteed that
* virtual_addr_space_size is in the range [1,UINTPTR_MAX].
*/
tcr = (uint64_t) 64 - __builtin_ctzll(virtual_addr_space_size);
int t0sz = 64 - __builtin_ctzll(virtual_addr_space_size);
tcr = (uint64_t) t0sz;
/*
* Set the cacheability and shareability attributes for memory
* associated with translation table walks.
*/
if ((flags & XLAT_TABLE_NC) != 0) {
if ((flags & XLAT_TABLE_NC) != 0U) {
/* Inner & outer non-cacheable non-shareable. */
tcr |= TCR_SH_NON_SHAREABLE |
TCR_RGN_OUTER_NC | TCR_RGN_INNER_NC;

6
lib/xlat_tables_v2/xlat_tables_context.c
View File

@ -78,12 +78,12 @@ void init_xlat_tables(void)
{
assert(tf_xlat_ctx.xlat_regime == EL_REGIME_INVALID);
int current_el = xlat_arch_current_el();
unsigned int current_el = xlat_arch_current_el();
if (current_el == 1) {
if (current_el == 1U) {
tf_xlat_ctx.xlat_regime = EL1_EL0_REGIME;
} else {
assert(current_el == 3);
assert(current_el == 3U);
tf_xlat_ctx.xlat_regime = EL3_REGIME;
}

325
lib/xlat_tables_v2/xlat_tables_core.c
View File

@ -29,9 +29,9 @@
* Returns the index of the array corresponding to the specified translation
* table.
*/
static int xlat_table_get_index(xlat_ctx_t *ctx, const uint64_t *table)
static int xlat_table_get_index(const xlat_ctx_t *ctx, const uint64_t *table)
{
for (unsigned int i = 0; i < ctx->tables_num; i++)
for (int i = 0; i < ctx->tables_num; i++)
if (ctx->tables[i] == table)
return i;
@ -45,9 +45,9 @@ static int xlat_table_get_index(xlat_ctx_t *ctx, const uint64_t *table)
}
/* Returns a pointer to an empty translation table. */
static uint64_t *xlat_table_get_empty(xlat_ctx_t *ctx)
static uint64_t *xlat_table_get_empty(const xlat_ctx_t *ctx)
{
for (unsigned int i = 0; i < ctx->tables_num; i++)
for (int i = 0; i < ctx->tables_num; i++)
if (ctx->tables_mapped_regions[i] == 0)
return ctx->tables[i];
@ -55,21 +55,28 @@ static uint64_t *xlat_table_get_empty(xlat_ctx_t *ctx)
}
/* Increments region count for a given table. */
static void xlat_table_inc_regions_count(xlat_ctx_t *ctx, const uint64_t *table)
static void xlat_table_inc_regions_count(const xlat_ctx_t *ctx,
const uint64_t *table)
{
ctx->tables_mapped_regions[xlat_table_get_index(ctx, table)]++;
int idx = xlat_table_get_index(ctx, table);
ctx->tables_mapped_regions[idx]++;
}
/* Decrements region count for a given table. */
static void xlat_table_dec_regions_count(xlat_ctx_t *ctx, const uint64_t *table)
static void xlat_table_dec_regions_count(const xlat_ctx_t *ctx,
const uint64_t *table)
{
ctx->tables_mapped_regions[xlat_table_get_index(ctx, table)]--;
int idx = xlat_table_get_index(ctx, table);
ctx->tables_mapped_regions[idx]--;
}
/* Returns 0 if the specified table isn't empty, otherwise 1. */
static int xlat_table_is_empty(xlat_ctx_t *ctx, const uint64_t *table)
static int xlat_table_is_empty(const xlat_ctx_t *ctx, const uint64_t *table)
{
return !ctx->tables_mapped_regions[xlat_table_get_index(ctx, table)];
return (ctx->tables_mapped_regions[xlat_table_get_index(ctx, table)] == 0)
? 1 : 0;
}
#else /* PLAT_XLAT_TABLES_DYNAMIC */
@ -88,13 +95,13 @@ static uint64_t *xlat_table_get_empty(xlat_ctx_t *ctx)
* Returns a block/page table descriptor for the given level and attributes.
*/
uint64_t xlat_desc(const xlat_ctx_t *ctx, uint32_t attr,
unsigned long long addr_pa, int level)
unsigned long long addr_pa, unsigned int level)
{
uint64_t desc;
int mem_type;
uint32_t mem_type;
/* Make sure that the granularity is fine enough to map this address. */
assert((addr_pa & XLAT_BLOCK_MASK(level)) == 0);
assert((addr_pa & XLAT_BLOCK_MASK(level)) == 0U);
desc = addr_pa;
/*
@ -111,8 +118,8 @@ uint64_t xlat_desc(const xlat_ctx_t *ctx, uint32_t attr,
* Deduce other fields of the descriptor based on the MT_NS and MT_RW
* memory region attributes.
*/
desc |= (attr & MT_NS) ? LOWER_ATTRS(NS) : 0;
desc |= (attr & MT_RW) ? LOWER_ATTRS(AP_RW) : LOWER_ATTRS(AP_RO);
desc |= ((attr & MT_NS) != 0U) ? LOWER_ATTRS(NS) : 0U;
desc |= ((attr & MT_RW) != 0U) ? LOWER_ATTRS(AP_RW) : LOWER_ATTRS(AP_RO);
/*
* Do not allow unprivileged access when the mapping is for a privileged
@ -120,7 +127,7 @@ uint64_t xlat_desc(const xlat_ctx_t *ctx, uint32_t attr,
* lower exception levels, set AP[2] to AP_NO_ACCESS_UNPRIVILEGED.
*/
if (ctx->xlat_regime == EL1_EL0_REGIME) {
if (attr & MT_USER) {
if ((attr & MT_USER) != 0U) {
/* EL0 mapping requested, so we give User access */
desc |= LOWER_ATTRS(AP_ACCESS_UNPRIVILEGED);
} else {
@ -172,7 +179,7 @@ uint64_t xlat_desc(const xlat_ctx_t *ctx, uint32_t attr,
* translation regime and the policy applied in
* xlat_arch_regime_get_xn_desc().
*/
if ((attr & MT_RW) || (attr & MT_EXECUTE_NEVER)) {
if (((attr & MT_RW) != 0U) || ((attr & MT_EXECUTE_NEVER) != 0U)) {
desc |= xlat_arch_regime_get_xn_desc(ctx->xlat_regime);
}
@ -223,10 +230,10 @@ typedef enum {
static void xlat_tables_unmap_region(xlat_ctx_t *ctx, mmap_region_t *mm,
const uintptr_t table_base_va,
uint64_t *const table_base,
const int table_entries,
const unsigned int table_entries,
const unsigned int level)
{
assert(level >= ctx->base_level && level <= XLAT_TABLE_LEVEL_MAX);
assert((level >= ctx->base_level) && (level <= XLAT_TABLE_LEVEL_MAX));
uint64_t *subtable;
uint64_t desc;
@ -234,16 +241,16 @@ static void xlat_tables_unmap_region(xlat_ctx_t *ctx, mmap_region_t *mm,
uintptr_t table_idx_va;
uintptr_t table_idx_end_va; /* End VA of this entry */
uintptr_t region_end_va = mm->base_va + mm->size - 1;
uintptr_t region_end_va = mm->base_va + mm->size - 1U;
int table_idx;
unsigned int table_idx;
if (mm->base_va > table_base_va) {
/* Find the first index of the table affected by the region. */
table_idx_va = mm->base_va & ~XLAT_BLOCK_MASK(level);
table_idx = (table_idx_va - table_base_va) >>
XLAT_ADDR_SHIFT(level);
table_idx = (unsigned int)((table_idx_va - table_base_va) >>
XLAT_ADDR_SHIFT(level));
assert(table_idx < table_entries);
} else {
@ -254,19 +261,18 @@ static void xlat_tables_unmap_region(xlat_ctx_t *ctx, mmap_region_t *mm,
while (table_idx < table_entries) {
table_idx_end_va = table_idx_va + XLAT_BLOCK_SIZE(level) - 1;
table_idx_end_va = table_idx_va + XLAT_BLOCK_SIZE(level) - 1U;
desc = table_base[table_idx];
uint64_t desc_type = desc & DESC_MASK;
action_t action = ACTION_NONE;
action_t action;
if ((mm->base_va <= table_idx_va) &&
(region_end_va >= table_idx_end_va)) {
/* Region covers all block */
if (level == 3) {
if (level == 3U) {
/*
* Last level, only page descriptors allowed,
* erase it.
@ -293,7 +299,6 @@ static void xlat_tables_unmap_region(xlat_ctx_t *ctx, mmap_region_t *mm,
} else if ((mm->base_va <= table_idx_end_va) ||
(region_end_va >= table_idx_va)) {
/*
* Region partially covers block.
*
@ -302,12 +307,13 @@ static void xlat_tables_unmap_region(xlat_ctx_t *ctx, mmap_region_t *mm,
* There must be a table descriptor here, if not there
* was a problem when mapping the region.
*/
assert(level < 3);
assert(level < 3U);
assert(desc_type == TABLE_DESC);
action = ACTION_RECURSE_INTO_TABLE;
} else {
/* The region doesn't cover the block at all */
action = ACTION_NONE;
}
if (action == ACTION_WRITE_BLOCK_ENTRY) {
@ -322,12 +328,12 @@ static void xlat_tables_unmap_region(xlat_ctx_t *ctx, mmap_region_t *mm,
/* Recurse to write into subtable */
xlat_tables_unmap_region(ctx, mm, table_idx_va,
subtable, XLAT_TABLE_ENTRIES,
level + 1);
level + 1U);
/*
* If the subtable is now empty, remove its reference.
*/
if (xlat_table_is_empty(ctx, subtable)) {
if (xlat_table_is_empty(ctx, subtable) != 0) {
table_base[table_idx] = INVALID_DESC;
xlat_arch_tlbi_va(table_idx_va,
ctx->xlat_regime);
@ -356,12 +362,12 @@ static void xlat_tables_unmap_region(xlat_ctx_t *ctx, mmap_region_t *mm,
* specified region.
*/
static action_t xlat_tables_map_region_action(const mmap_region_t *mm,
const int desc_type, const unsigned long long dest_pa,
const uintptr_t table_entry_base_va, const unsigned int level)
unsigned int desc_type, unsigned long long dest_pa,
uintptr_t table_entry_base_va, unsigned int level)
{
uintptr_t mm_end_va = mm->base_va + mm->size - 1;
uintptr_t mm_end_va = mm->base_va + mm->size - 1U;
uintptr_t table_entry_end_va =
table_entry_base_va + XLAT_BLOCK_SIZE(level) - 1;
table_entry_base_va + XLAT_BLOCK_SIZE(level) - 1U;
/*
* The descriptor types allowed depend on the current table level.
@ -378,7 +384,7 @@ static action_t xlat_tables_map_region_action(const mmap_region_t *mm,
* translation with this granularity in principle.
*/
if (level == 3) {
if (level == 3U) {
/*
* Last level, only page descriptors are allowed.
*/
@ -416,8 +422,8 @@ static action_t xlat_tables_map_region_action(const mmap_region_t *mm,
* Also, check if the current level allows block
* descriptors. If not, create a table instead.
*/
if ((dest_pa & XLAT_BLOCK_MASK(level)) ||
(level < MIN_LVL_BLOCK_DESC) ||
if (((dest_pa & XLAT_BLOCK_MASK(level)) != 0U)
|| (level < MIN_LVL_BLOCK_DESC) ||
(mm->granularity < XLAT_BLOCK_SIZE(level)))
return ACTION_CREATE_NEW_TABLE;
else
@ -449,7 +455,7 @@ static action_t xlat_tables_map_region_action(const mmap_region_t *mm,
* mmap region failed to detect that PA and VA must at least be
* aligned to PAGE_SIZE.
*/
assert(level < 3);
assert(level < 3U);
if (desc_type == INVALID_DESC) {
/*
@ -472,13 +478,14 @@ static action_t xlat_tables_map_region_action(const mmap_region_t *mm,
*/
return ACTION_RECURSE_INTO_TABLE;
}
}
} else {
/*
* This table entry is outside of the region specified in the arguments,
* don't write anything to it.
*/
return ACTION_NONE;
/*
* This table entry is outside of the region specified in the
* arguments, don't write anything to it.
*/
return ACTION_NONE;
}
}
/*
@ -488,14 +495,14 @@ static action_t xlat_tables_map_region_action(const mmap_region_t *mm,
* should have been mapped.
*/
static uintptr_t xlat_tables_map_region(xlat_ctx_t *ctx, mmap_region_t *mm,
const uintptr_t table_base_va,
uintptr_t table_base_va,
uint64_t *const table_base,
const int table_entries,
const unsigned int level)
unsigned int table_entries,
unsigned int level)
{
assert(level >= ctx->base_level && level <= XLAT_TABLE_LEVEL_MAX);
assert((level >= ctx->base_level) && (level <= XLAT_TABLE_LEVEL_MAX));
uintptr_t mm_end_va = mm->base_va + mm->size - 1;
uintptr_t mm_end_va = mm->base_va + mm->size - 1U;
uintptr_t table_idx_va;
unsigned long long table_idx_pa;
@ -503,20 +510,20 @@ static uintptr_t xlat_tables_map_region(xlat_ctx_t *ctx, mmap_region_t *mm,
uint64_t *subtable;
uint64_t desc;
int table_idx;
unsigned int table_idx;
if (mm->base_va > table_base_va) {
/* Find the first index of the table affected by the region. */
table_idx_va = mm->base_va & ~XLAT_BLOCK_MASK(level);
table_idx = (table_idx_va - table_base_va) >>
XLAT_ADDR_SHIFT(level);
table_idx = (unsigned int)((table_idx_va - table_base_va) >>
XLAT_ADDR_SHIFT(level));
assert(table_idx < table_entries);
} else {
/* Start from the beginning of the table. */
table_idx_va = table_base_va;
table_idx = 0;
table_idx = 0U;
}
#if PLAT_XLAT_TABLES_DYNAMIC
@ -531,7 +538,8 @@ static uintptr_t xlat_tables_map_region(xlat_ctx_t *ctx, mmap_region_t *mm,
table_idx_pa = mm->base_pa + table_idx_va - mm->base_va;
action_t action = xlat_tables_map_region_action(mm,
desc & DESC_MASK, table_idx_pa, table_idx_va, level);
(uint32_t)(desc & DESC_MASK), table_idx_pa,
table_idx_va, level);
if (action == ACTION_WRITE_BLOCK_ENTRY) {
@ -540,6 +548,7 @@ static uintptr_t xlat_tables_map_region(xlat_ctx_t *ctx, mmap_region_t *mm,
level);
} else if (action == ACTION_CREATE_NEW_TABLE) {
uintptr_t end_va;
subtable = xlat_table_get_empty(ctx);
if (subtable == NULL) {
@ -551,20 +560,23 @@ static uintptr_t xlat_tables_map_region(xlat_ctx_t *ctx, mmap_region_t *mm,
table_base[table_idx] = TABLE_DESC | (unsigned long)subtable;
/* Recurse to write into subtable */
uintptr_t end_va = xlat_tables_map_region(ctx, mm, table_idx_va,
end_va = xlat_tables_map_region(ctx, mm, table_idx_va,
subtable, XLAT_TABLE_ENTRIES,
level + 1);
if (end_va != table_idx_va + XLAT_BLOCK_SIZE(level) - 1)
level + 1U);
if (end_va !=
(table_idx_va + XLAT_BLOCK_SIZE(level) - 1U))
return end_va;
} else if (action == ACTION_RECURSE_INTO_TABLE) {
uintptr_t end_va;
subtable = (uint64_t *)(uintptr_t)(desc & TABLE_ADDR_MASK);
/* Recurse to write into subtable */
uintptr_t end_va = xlat_tables_map_region(ctx, mm, table_idx_va,
end_va = xlat_tables_map_region(ctx, mm, table_idx_va,
subtable, XLAT_TABLE_ENTRIES,
level + 1);
if (end_va != table_idx_va + XLAT_BLOCK_SIZE(level) - 1)
level + 1U);
if (end_va !=
(table_idx_va + XLAT_BLOCK_SIZE(level) - 1U))
return end_va;
} else {
@ -581,7 +593,7 @@ static uintptr_t xlat_tables_map_region(xlat_ctx_t *ctx, mmap_region_t *mm,
break;
}
return table_idx_va - 1;
return table_idx_va - 1U;
}
/*
@ -593,23 +605,23 @@ static uintptr_t xlat_tables_map_region(xlat_ctx_t *ctx, mmap_region_t *mm,
* ENOMEM: There is not enough memory in the mmap array.
* EPERM: Region overlaps another one in an invalid way.
*/
static int mmap_add_region_check(xlat_ctx_t *ctx, const mmap_region_t *mm)
static int mmap_add_region_check(const xlat_ctx_t *ctx, const mmap_region_t *mm)
{
unsigned long long base_pa = mm->base_pa;
uintptr_t base_va = mm->base_va;
size_t size = mm->size;
size_t granularity = mm->granularity;
unsigned long long end_pa = base_pa + size - 1;
uintptr_t end_va = base_va + size - 1;
unsigned long long end_pa = base_pa + size - 1U;
uintptr_t end_va = base_va + size - 1U;
if (!IS_PAGE_ALIGNED(base_pa) || !IS_PAGE_ALIGNED(base_va) ||
!IS_PAGE_ALIGNED(size))
return -EINVAL;
if ((granularity != XLAT_BLOCK_SIZE(1)) &&
(granularity != XLAT_BLOCK_SIZE(2)) &&
(granularity != XLAT_BLOCK_SIZE(3))) {
if ((granularity != XLAT_BLOCK_SIZE(1U)) &&
(granularity != XLAT_BLOCK_SIZE(2U)) &&
(granularity != XLAT_BLOCK_SIZE(3U))) {
return -EINVAL;
}
@ -624,26 +636,26 @@ static int mmap_add_region_check(xlat_ctx_t *ctx, const mmap_region_t *mm)
return -ERANGE;
/* Check that there is space in the ctx->mmap array */
if (ctx->mmap[ctx->mmap_num - 1].size != 0)
if (ctx->mmap[ctx->mmap_num - 1].size != 0U)
return -ENOMEM;
/* Check for PAs and VAs overlaps with all other regions */
for (mmap_region_t *mm_cursor = ctx->mmap;
mm_cursor->size; ++mm_cursor) {
for (const mmap_region_t *mm_cursor = ctx->mmap;
mm_cursor->size != 0U; ++mm_cursor) {
uintptr_t mm_cursor_end_va = mm_cursor->base_va
+ mm_cursor->size - 1;
+ mm_cursor->size - 1U;
/*
* Check if one of the regions is completely inside the other
* one.
*/
int fully_overlapped_va =
((base_va >= mm_cursor->base_va) &&
(((base_va >= mm_cursor->base_va) &&
(end_va <= mm_cursor_end_va)) ||
((mm_cursor->base_va >= base_va) &&
(mm_cursor_end_va <= end_va));
((mm_cursor->base_va >= base_va) &&
(mm_cursor_end_va <= end_va)))
? 1 : 0;
/*
* Full VA overlaps are only allowed if both regions are
@ -651,11 +663,11 @@ static int mmap_add_region_check(xlat_ctx_t *ctx, const mmap_region_t *mm)
* offset. Also, make sure that it's not the exact same area.
* This can only be done with static regions.
*/
if (fully_overlapped_va) {
if (fully_overlapped_va != 0) {
#if PLAT_XLAT_TABLES_DYNAMIC
if ((mm->attr & MT_DYNAMIC) ||
(mm_cursor->attr & MT_DYNAMIC))
if (((mm->attr & MT_DYNAMIC) != 0U) ||
((mm_cursor->attr & MT_DYNAMIC) != 0U))
return -EPERM;
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
if ((mm_cursor->base_va - mm_cursor->base_pa) !=
@ -674,16 +686,14 @@ static int mmap_add_region_check(xlat_ctx_t *ctx, const mmap_region_t *mm)
*/
unsigned long long mm_cursor_end_pa =
mm_cursor->base_pa + mm_cursor->size - 1;
mm_cursor->base_pa + mm_cursor->size - 1U;
int separated_pa =
(end_pa < mm_cursor->base_pa) ||
(base_pa > mm_cursor_end_pa);
int separated_va =
(end_va < mm_cursor->base_va) ||
(base_va > mm_cursor_end_va);
int separated_pa = ((end_pa < mm_cursor->base_pa) ||
(base_pa > mm_cursor_end_pa)) ? 1 : 0;
int separated_va = ((end_va < mm_cursor->base_va) ||
(base_va > mm_cursor_end_va)) ? 1 : 0;
if (!(separated_va && separated_pa))
if ((separated_va == 0) || (separated_pa == 0))
return -EPERM;
}
}
@ -695,17 +705,17 @@ void mmap_add_region_ctx(xlat_ctx_t *ctx, const mmap_region_t *mm)
{
mmap_region_t *mm_cursor = ctx->mmap, *mm_destination;
const mmap_region_t *mm_end = ctx->mmap + ctx->mmap_num;
mmap_region_t *mm_last;
unsigned long long end_pa = mm->base_pa + mm->size - 1;
uintptr_t end_va = mm->base_va + mm->size - 1;
const mmap_region_t *mm_last;
unsigned long long end_pa = mm->base_pa + mm->size - 1U;
uintptr_t end_va = mm->base_va + mm->size - 1U;
int ret;
/* Ignore empty regions */
if (!mm->size)
if (mm->size == 0U)
return;
/* Static regions must be added before initializing the xlat tables. */
assert(!ctx->initialized);
assert(ctx->initialized == 0);
ret = mmap_add_region_check(ctx, mm);
if (ret != 0) {
@ -738,13 +748,15 @@ void mmap_add_region_ctx(xlat_ctx_t *ctx, const mmap_region_t *mm)
* Overlapping is only allowed for static regions.
*/
while ((mm_cursor->base_va + mm_cursor->size - 1) < end_va
&& mm_cursor->size)
while (((mm_cursor->base_va + mm_cursor->size - 1U) < end_va)
&& (mm_cursor->size != 0U)) {
++mm_cursor;
}
while ((mm_cursor->base_va + mm_cursor->size - 1 == end_va) &&
(mm_cursor->size != 0U) && (mm_cursor->size < mm->size))
while (((mm_cursor->base_va + mm_cursor->size - 1U) == end_va) &&
(mm_cursor->size != 0U) && (mm_cursor->size < mm->size)) {
++mm_cursor;
}
/*
* Find the last entry marker in the mmap
@ -763,7 +775,7 @@ void mmap_add_region_ctx(xlat_ctx_t *ctx, const mmap_region_t *mm)
/* Make room for new region by moving other regions up by one place */
mm_destination = mm_cursor + 1;
memmove(mm_destination, mm_cursor,
(void)memmove(mm_destination, mm_cursor,
(uintptr_t)mm_last - (uintptr_t)mm_cursor);
/*
@ -783,9 +795,11 @@ void mmap_add_region_ctx(xlat_ctx_t *ctx, const mmap_region_t *mm)
void mmap_add_ctx(xlat_ctx_t *ctx, const mmap_region_t *mm)
{
while (mm->size) {
mmap_add_region_ctx(ctx, mm);
mm++;
const mmap_region_t *mm_cursor = mm;
while (mm_cursor->size != 0U) {
mmap_add_region_ctx(ctx, mm_cursor);
mm_cursor++;
}
}
@ -794,13 +808,13 @@ void mmap_add_ctx(xlat_ctx_t *ctx, const mmap_region_t *mm)
int mmap_add_dynamic_region_ctx(xlat_ctx_t *ctx, mmap_region_t *mm)
{
mmap_region_t *mm_cursor = ctx->mmap;
mmap_region_t *mm_last = mm_cursor + ctx->mmap_num;
unsigned long long end_pa = mm->base_pa + mm->size - 1;
uintptr_t end_va = mm->base_va + mm->size - 1;
const mmap_region_t *mm_last = mm_cursor + ctx->mmap_num;
unsigned long long end_pa = mm->base_pa + mm->size - 1U;
uintptr_t end_va = mm->base_va + mm->size - 1U;
int ret;
/* Nothing to do */
if (!mm->size)
if (mm->size == 0U)
return 0;
/* Now this region is a dynamic one */
@ -815,16 +829,18 @@ int mmap_add_dynamic_region_ctx(xlat_ctx_t *ctx, mmap_region_t *mm)
* static regions in mmap_add_region_ctx().
*/
while ((mm_cursor->base_va + mm_cursor->size - 1)
< end_va && mm_cursor->size)
while (((mm_cursor->base_va + mm_cursor->size - 1U) < end_va)
&& (mm_cursor->size != 0U)) {
++mm_cursor;
}
while ((mm_cursor->base_va + mm_cursor->size - 1 == end_va)
&& (mm_cursor->size < mm->size))
while (((mm_cursor->base_va + mm_cursor->size - 1U) == end_va) &&
(mm_cursor->size != 0U) && (mm_cursor->size < mm->size)) {
++mm_cursor;
}
/* Make room for new region by moving other regions up by one place */
memmove(mm_cursor + 1, mm_cursor,
(void)memmove(mm_cursor + 1U, mm_cursor,
(uintptr_t)mm_last - (uintptr_t)mm_cursor);
/*
@ -832,7 +848,7 @@ int mmap_add_dynamic_region_ctx(xlat_ctx_t *ctx, mmap_region_t *mm)
* This shouldn't happen as we have checked in mmap_add_region_check
* that there is free space.
*/
assert(mm_last->size == 0);
assert(mm_last->size == 0U);
*mm_cursor = *mm;
@ -840,14 +856,14 @@ int mmap_add_dynamic_region_ctx(xlat_ctx_t *ctx, mmap_region_t *mm)
* Update the translation tables if the xlat tables are initialized. If
* not, this region will be mapped when they are initialized.
*/
if (ctx->initialized) {
uintptr_t end_va = xlat_tables_map_region(ctx, mm_cursor,
0, ctx->base_table, ctx->base_table_entries,
if (ctx->initialized != 0) {
end_va = xlat_tables_map_region(ctx, mm_cursor,
0U, ctx->base_table, ctx->base_table_entries,
ctx->base_level);
/* Failed to map, remove mmap entry, unmap and return error. */
if (end_va != mm_cursor->base_va + mm_cursor->size - 1) {
memmove(mm_cursor, mm_cursor + 1,
if (end_va != (mm_cursor->base_va + mm_cursor->size - 1U)) {
(void)memmove(mm_cursor, mm_cursor + 1U,
(uintptr_t)mm_last - (uintptr_t)mm_cursor);
/*
@ -862,13 +878,14 @@ int mmap_add_dynamic_region_ctx(xlat_ctx_t *ctx, mmap_region_t *mm)
* entries, undo every change done up to this point.
*/
mmap_region_t unmap_mm = {
.base_pa = 0,
.base_pa = 0U,
.base_va = mm->base_va,
.size = end_va - mm->base_va,
.attr = 0
.attr = 0U
};
xlat_tables_unmap_region(ctx, &unmap_mm, 0, ctx->base_table,
ctx->base_table_entries, ctx->base_level);
xlat_tables_unmap_region(ctx, &unmap_mm, 0U,
ctx->base_table, ctx->base_table_entries,
ctx->base_level);
return -ENOMEM;
}
@ -903,61 +920,61 @@ int mmap_remove_dynamic_region_ctx(xlat_ctx_t *ctx, uintptr_t base_va,
size_t size)
{
mmap_region_t *mm = ctx->mmap;
mmap_region_t *mm_last = mm + ctx->mmap_num;
const mmap_region_t *mm_last = mm + ctx->mmap_num;
int update_max_va_needed = 0;
int update_max_pa_needed = 0;
/* Check sanity of mmap array. */
assert(mm[ctx->mmap_num].size == 0);
assert(mm[ctx->mmap_num].size == 0U);
while (mm->size) {
while (mm->size != 0U) {
if ((mm->base_va == base_va) && (mm->size == size))
break;
++mm;
}
/* Check that the region was found */
if (mm->size == 0)
if (mm->size == 0U)
return -EINVAL;
/* If the region is static it can't be removed */
if (!(mm->attr & MT_DYNAMIC))
if ((mm->attr & MT_DYNAMIC) == 0U)
return -EPERM;
/* Check if this region is using the top VAs or PAs. */
if ((mm->base_va + mm->size - 1) == ctx->max_va)
if ((mm->base_va + mm->size - 1U) == ctx->max_va)
update_max_va_needed = 1;
if ((mm->base_pa + mm->size - 1) == ctx->max_pa)
if ((mm->base_pa + mm->size - 1U) == ctx->max_pa)
update_max_pa_needed = 1;
/* Update the translation tables if needed */
if (ctx->initialized) {
xlat_tables_unmap_region(ctx, mm, 0, ctx->base_table,
if (ctx->initialized != 0) {
xlat_tables_unmap_region(ctx, mm, 0U, ctx->base_table,
ctx->base_table_entries,
ctx->base_level);
xlat_arch_tlbi_va_sync();
}
/* Remove this region by moving the rest down by one place. */
memmove(mm, mm + 1, (uintptr_t)mm_last - (uintptr_t)mm);
(void)memmove(mm, mm + 1U, (uintptr_t)mm_last - (uintptr_t)mm);
/* Check if we need to update the max VAs and PAs */
if (update_max_va_needed) {
ctx->max_va = 0;
if (update_max_va_needed == 1) {
ctx->max_va = 0U;
mm = ctx->mmap;
while (mm->size) {
if ((mm->base_va + mm->size - 1) > ctx->max_va)
ctx->max_va = mm->base_va + mm->size - 1;
while (mm->size != 0U) {
if ((mm->base_va + mm->size - 1U) > ctx->max_va)
ctx->max_va = mm->base_va + mm->size - 1U;
++mm;
}
}
if (update_max_pa_needed) {
ctx->max_pa = 0;
if (update_max_pa_needed == 1) {
ctx->max_pa = 0U;
mm = ctx->mmap;
while (mm->size) {
if ((mm->base_pa + mm->size - 1) > ctx->max_pa)
ctx->max_pa = mm->base_pa + mm->size - 1;
while (mm->size != 0U) {
if ((mm->base_pa + mm->size - 1U) > ctx->max_pa)
ctx->max_pa = mm->base_pa + mm->size - 1U;
++mm;
}
}
@ -970,9 +987,10 @@ int mmap_remove_dynamic_region_ctx(xlat_ctx_t *ctx, uintptr_t base_va,
void init_xlat_tables_ctx(xlat_ctx_t *ctx)
{
assert(ctx != NULL);
assert(!ctx->initialized);
assert(ctx->xlat_regime == EL3_REGIME || ctx->xlat_regime == EL1_EL0_REGIME);
assert(!is_mmu_enabled_ctx(ctx));
assert(ctx->initialized == 0);
assert((ctx->xlat_regime == EL3_REGIME) ||
(ctx->xlat_regime == EL1_EL0_REGIME));
assert(is_mmu_enabled_ctx(ctx) == 0);
mmap_region_t *mm = ctx->mmap;
@ -980,25 +998,26 @@ void init_xlat_tables_ctx(xlat_ctx_t *ctx)
/* All tables must be zeroed before mapping any region. */
for (unsigned int i = 0; i < ctx->base_table_entries; i++)
for (unsigned int i = 0U; i < ctx->base_table_entries; i++)
ctx->base_table[i] = INVALID_DESC;
for (unsigned int j = 0; j < ctx->tables_num; j++) {
for (int j = 0; j < ctx->tables_num; j++) {
#if PLAT_XLAT_TABLES_DYNAMIC
ctx->tables_mapped_regions[j] = 0;
#endif
for (unsigned int i = 0; i < XLAT_TABLE_ENTRIES; i++)
for (unsigned int i = 0U; i < XLAT_TABLE_ENTRIES; i++)
ctx->tables[j][i] = INVALID_DESC;
}
while (mm->size) {
uintptr_t end_va = xlat_tables_map_region(ctx, mm, 0, ctx->base_table,
ctx->base_table_entries, ctx->base_level);
while (mm->size != 0U) {
uintptr_t end_va = xlat_tables_map_region(ctx, mm, 0U,
ctx->base_table, ctx->base_table_entries,
ctx->base_level);
if (end_va != mm->base_va + mm->size - 1) {
if (end_va != (mm->base_va + mm->size - 1U)) {
ERROR("Not enough memory to map region:\n"
" VA:%p PA:0x%llx size:0x%zx attr:0x%x\n",
(void *)mm->base_va, mm->base_pa, mm->size, mm->attr);
" VA:0x%lx PA:0x%llx size:0x%zx attr:0x%x\n",
mm->base_va, mm->base_pa, mm->size, mm->attr);
panic();
}

14
lib/xlat_tables_v2/xlat_tables_private.h
View File

@ -4,8 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __XLAT_TABLES_PRIVATE_H__
#define __XLAT_TABLES_PRIVATE_H__
#ifndef XLAT_TABLES_PRIVATE_H
#define XLAT_TABLES_PRIVATE_H
#include <platform_def.h>
#include <xlat_tables_defs.h>
@ -35,6 +35,8 @@
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
extern uint64_t mmu_cfg_params[MMU_CFG_PARAM_MAX];
/*
* Return the execute-never mask that will prevent instruction fetch at the
* given translation regime.
@ -61,7 +63,7 @@ void xlat_arch_tlbi_va(uintptr_t va, int xlat_regime);
void xlat_arch_tlbi_va_sync(void);
/* Print VA, PA, size and attributes of all regions in the mmap array. */
void xlat_mmap_print(mmap_region_t *const mmap);
void xlat_mmap_print(const mmap_region_t *mmap);
/*
* Print the current state of the translation tables by reading them from
@ -73,14 +75,14 @@ void xlat_tables_print(xlat_ctx_t *ctx);
* Returns a block/page table descriptor for the given level and attributes.
*/
uint64_t xlat_desc(const xlat_ctx_t *ctx, uint32_t attr,
unsigned long long addr_pa, int level);
unsigned long long addr_pa, unsigned int level);
/*
* Architecture-specific initialization code.
*/
/* Returns the current Exception Level. The returned EL must be 1 or higher. */
int xlat_arch_current_el(void);
unsigned int xlat_arch_current_el(void);
/*
* Return the maximum physical address supported by the hardware.
@ -94,4 +96,4 @@ unsigned long long xlat_arch_get_max_supported_pa(void);
*/
int is_mmu_enabled_ctx(const xlat_ctx_t *ctx);
#endif /* __XLAT_TABLES_PRIVATE_H__ */
#endif /* XLAT_TABLES_PRIVATE_H */

159
lib/xlat_tables_v2/xlat_tables_utils.c
View File

@ -18,7 +18,7 @@
#if LOG_LEVEL < LOG_LEVEL_VERBOSE
void xlat_mmap_print(__unused mmap_region_t *const mmap)
void xlat_mmap_print(__unused const mmap_region_t *mmap)
{
/* Empty */
}
@ -30,7 +30,7 @@ void xlat_tables_print(__unused xlat_ctx_t *ctx)
#else /* if LOG_LEVEL >= LOG_LEVEL_VERBOSE */
void xlat_mmap_print(mmap_region_t *const mmap)
void xlat_mmap_print(const mmap_region_t *mmap)
{
tf_printf("mmap:\n");
const mmap_region_t *mm = mmap;
@ -47,7 +47,7 @@ void xlat_mmap_print(mmap_region_t *const mmap)
/* Print the attributes of the specified block descriptor. */
static void xlat_desc_print(const xlat_ctx_t *ctx, uint64_t desc)
{
int mem_type_index = ATTR_INDEX_GET(desc);
uint64_t mem_type_index = ATTR_INDEX_GET(desc);
int xlat_regime = ctx->xlat_regime;
if (mem_type_index == ATTR_IWBWA_OWBWA_NTR_INDEX) {
@ -61,8 +61,8 @@ static void xlat_desc_print(const xlat_ctx_t *ctx, uint64_t desc)
if (xlat_regime == EL3_REGIME) {
/* For EL3 only check the AP[2] and XN bits. */
tf_printf((desc & LOWER_ATTRS(AP_RO)) ? "-RO" : "-RW");
tf_printf((desc & UPPER_ATTRS(XN)) ? "-XN" : "-EXEC");
tf_printf(((desc & LOWER_ATTRS(AP_RO)) != 0ULL) ? "-RO" : "-RW");
tf_printf(((desc & UPPER_ATTRS(XN)) != 0ULL) ? "-XN" : "-EXEC");
} else {
assert(xlat_regime == EL1_EL0_REGIME);
/*
@ -80,18 +80,18 @@ static void xlat_desc_print(const xlat_ctx_t *ctx, uint64_t desc)
assert((xn_perm == xn_mask) || (xn_perm == 0ULL));
#endif
tf_printf((desc & LOWER_ATTRS(AP_RO)) ? "-RO" : "-RW");
tf_printf(((desc & LOWER_ATTRS(AP_RO)) != 0ULL) ? "-RO" : "-RW");
/* Only check one of PXN and UXN, the other one is the same. */
tf_printf((desc & UPPER_ATTRS(PXN)) ? "-XN" : "-EXEC");
tf_printf(((desc & UPPER_ATTRS(PXN)) != 0ULL) ? "-XN" : "-EXEC");
/*
* Privileged regions can only be accessed from EL1, user
* regions can be accessed from EL1 and EL0.
*/
tf_printf((desc & LOWER_ATTRS(AP_ACCESS_UNPRIVILEGED))
tf_printf(((desc & LOWER_ATTRS(AP_ACCESS_UNPRIVILEGED)) != 0ULL)
? "-USER" : "-PRIV");
}
tf_printf(LOWER_ATTRS(NS) & desc ? "-NS" : "-S");
tf_printf(((LOWER_ATTRS(NS) & desc) != 0ULL) ? "-NS" : "-S");
}
static const char * const level_spacers[] = {
@ -108,17 +108,15 @@ static const char *invalid_descriptors_ommited =
* Recursive function that reads the translation tables passed as an argument
* and prints their status.
*/
static void xlat_tables_print_internal(xlat_ctx_t *ctx,
const uintptr_t table_base_va,
uint64_t *const table_base, const int table_entries,
const unsigned int level)
static void xlat_tables_print_internal(xlat_ctx_t *ctx, uintptr_t table_base_va,
const uint64_t *table_base, unsigned int table_entries,
unsigned int level)
{
assert(level <= XLAT_TABLE_LEVEL_MAX);
uint64_t desc;
uintptr_t table_idx_va = table_base_va;
int table_idx = 0;
unsigned int table_idx = 0U;
size_t level_size = XLAT_BLOCK_SIZE(level);
/*
@ -136,9 +134,9 @@ static void xlat_tables_print_internal(xlat_ctx_t *ctx,
if ((desc & DESC_MASK) == INVALID_DESC) {
if (invalid_row_count == 0) {
tf_printf("%sVA:%p size:0x%zx\n",
tf_printf("%sVA:0x%lx size:0x%zx\n",
level_spacers[level],
(void *)table_idx_va, level_size);
table_idx_va, level_size);
}
invalid_row_count++;
@ -164,20 +162,20 @@ static void xlat_tables_print_internal(xlat_ctx_t *ctx,
* but instead points to the next translation
* table in the translation table walk.
*/
tf_printf("%sVA:%p size:0x%zx\n",
tf_printf("%sVA:0x%lx size:0x%zx\n",
level_spacers[level],
(void *)table_idx_va, level_size);
table_idx_va, level_size);
uintptr_t addr_inner = desc & TABLE_ADDR_MASK;
xlat_tables_print_internal(ctx, table_idx_va,
(uint64_t *)addr_inner,
XLAT_TABLE_ENTRIES, level + 1);
XLAT_TABLE_ENTRIES, level + 1U);
} else {
tf_printf("%sVA:%p PA:0x%llx size:0x%zx ",
tf_printf("%sVA:0x%lx PA:0x%llx size:0x%zx ",
level_spacers[level],
(void *)table_idx_va,
(unsigned long long)(desc & TABLE_ADDR_MASK),
table_idx_va,
(uint64_t)(desc & TABLE_ADDR_MASK),
level_size);
xlat_desc_print(ctx, desc);
tf_printf("\n");
@ -197,6 +195,8 @@ static void xlat_tables_print_internal(xlat_ctx_t *ctx,
void xlat_tables_print(xlat_ctx_t *ctx)
{
const char *xlat_regime_str;
int used_page_tables;
if (ctx->xlat_regime == EL1_EL0_REGIME) {
xlat_regime_str = "1&0";
} else {
@ -206,29 +206,28 @@ void xlat_tables_print(xlat_ctx_t *ctx)
VERBOSE("Translation tables state:\n");
VERBOSE(" Xlat regime: EL%s\n", xlat_regime_str);
VERBOSE(" Max allowed PA: 0x%llx\n", ctx->pa_max_address);
VERBOSE(" Max allowed VA: %p\n", (void *) ctx->va_max_address);
VERBOSE(" Max allowed VA: 0x%lx\n", ctx->va_max_address);
VERBOSE(" Max mapped PA: 0x%llx\n", ctx->max_pa);
VERBOSE(" Max mapped VA: %p\n", (void *) ctx->max_va);
VERBOSE(" Max mapped VA: 0x%lx\n", ctx->max_va);
VERBOSE(" Initial lookup level: %i\n", ctx->base_level);
VERBOSE(" Entries @initial lookup level: %i\n",
VERBOSE(" Initial lookup level: %u\n", ctx->base_level);
VERBOSE(" Entries @initial lookup level: %u\n",
ctx->base_table_entries);
int used_page_tables;
#if PLAT_XLAT_TABLES_DYNAMIC
used_page_tables = 0;
for (unsigned int i = 0; i < ctx->tables_num; ++i) {
for (int i = 0; i < ctx->tables_num; ++i) {
if (ctx->tables_mapped_regions[i] != 0)
++used_page_tables;
}
#else
used_page_tables = ctx->next_table;
#endif
VERBOSE(" Used %i sub-tables out of %i (spare: %i)\n",
VERBOSE(" Used %d sub-tables out of %d (spare: %d)\n",
used_page_tables, ctx->tables_num,
ctx->tables_num - used_page_tables);
xlat_tables_print_internal(ctx, 0, ctx->base_table,
xlat_tables_print_internal(ctx, 0U, ctx->base_table,
ctx->base_table_entries, ctx->base_level);
}
@ -251,13 +250,13 @@ void xlat_tables_print(xlat_ctx_t *ctx)
*/
static uint64_t *find_xlat_table_entry(uintptr_t virtual_addr,
void *xlat_table_base,
int xlat_table_base_entries,
unsigned int xlat_table_base_entries,
unsigned long long virt_addr_space_size,
int *out_level)
unsigned int *out_level)
{
unsigned int start_level;
uint64_t *table;
int entries;
unsigned int entries;
start_level = GET_XLAT_TABLE_LEVEL_BASE(virt_addr_space_size);
@ -267,9 +266,7 @@ static uint64_t *find_xlat_table_entry(uintptr_t virtual_addr,
for (unsigned int level = start_level;
level <= XLAT_TABLE_LEVEL_MAX;
++level) {
int idx;
uint64_t desc;
uint64_t desc_type;
uint64_t idx, desc, desc_type;
idx = XLAT_TABLE_IDX(virtual_addr, level);
if (idx >= entries) {
@ -318,22 +315,23 @@ static uint64_t *find_xlat_table_entry(uintptr_t virtual_addr,
static int get_mem_attributes_internal(const xlat_ctx_t *ctx, uintptr_t base_va,
uint32_t *attributes, uint64_t **table_entry,
unsigned long long *addr_pa, int *table_level)
unsigned long long *addr_pa, unsigned int *table_level)
{
uint64_t *entry;
uint64_t desc;
int level;
unsigned int level;
unsigned long long virt_addr_space_size;
/*
* Sanity-check arguments.
*/
assert(ctx != NULL);
assert(ctx->initialized);
assert(ctx->xlat_regime == EL1_EL0_REGIME || ctx->xlat_regime == EL3_REGIME);
assert(ctx->initialized != 0);
assert((ctx->xlat_regime == EL1_EL0_REGIME) ||
(ctx->xlat_regime == EL3_REGIME));
virt_addr_space_size = (unsigned long long)ctx->va_max_address + 1;
assert(virt_addr_space_size > 0);
virt_addr_space_size = (unsigned long long)ctx->va_max_address + 1ULL;
assert(virt_addr_space_size > 0U);
entry = find_xlat_table_entry(base_va,
ctx->base_table,
@ -341,7 +339,7 @@ static int get_mem_attributes_internal(const xlat_ctx_t *ctx, uintptr_t base_va,
virt_addr_space_size,
&level);
if (entry == NULL) {
WARN("Address %p is not mapped.\n", (void *)base_va);
WARN("Address 0x%lx is not mapped.\n", base_va);
return -EINVAL;
}
@ -366,9 +364,9 @@ static int get_mem_attributes_internal(const xlat_ctx_t *ctx, uintptr_t base_va,
#endif /* LOG_LEVEL >= LOG_LEVEL_VERBOSE */
assert(attributes != NULL);
*attributes = 0;
*attributes = 0U;
int attr_index = (desc >> ATTR_INDEX_SHIFT) & ATTR_INDEX_MASK;
uint64_t attr_index = (desc >> ATTR_INDEX_SHIFT) & ATTR_INDEX_MASK;
if (attr_index == ATTR_IWBWA_OWBWA_NTR_INDEX) {
*attributes |= MT_MEMORY;
@ -379,20 +377,21 @@ static int get_mem_attributes_internal(const xlat_ctx_t *ctx, uintptr_t base_va,
*attributes |= MT_DEVICE;
}
int ap2_bit = (desc >> AP2_SHIFT) & 1;
uint64_t ap2_bit = (desc >> AP2_SHIFT) & 1U;
if (ap2_bit == AP2_RW)
*attributes |= MT_RW;
if (ctx->xlat_regime == EL1_EL0_REGIME) {
int ap1_bit = (desc >> AP1_SHIFT) & 1;
uint64_t ap1_bit = (desc >> AP1_SHIFT) & 1U;
if (ap1_bit == AP1_ACCESS_UNPRIVILEGED)
*attributes |= MT_USER;
}
int ns_bit = (desc >> NS_SHIFT) & 1;
uint64_t ns_bit = (desc >> NS_SHIFT) & 1U;
if (ns_bit == 1)
if (ns_bit == 1U)
*attributes |= MT_NS;
uint64_t xn_mask = xlat_arch_regime_get_xn_desc(ctx->xlat_regime);
@ -400,7 +399,7 @@ static int get_mem_attributes_internal(const xlat_ctx_t *ctx, uintptr_t base_va,
if ((desc & xn_mask) == xn_mask) {
*attributes |= MT_EXECUTE_NEVER;
} else {
assert((desc & xn_mask) == 0);
assert((desc & xn_mask) == 0U);
}
return 0;
@ -415,7 +414,7 @@ int get_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va,
}
int change_mem_attributes(xlat_ctx_t *ctx,
int change_mem_attributes(const xlat_ctx_t *ctx,
uintptr_t base_va,
size_t size,
uint32_t attr)
@ -423,49 +422,49 @@ int change_mem_attributes(xlat_ctx_t *ctx,
/* Note: This implementation isn't optimized. */
assert(ctx != NULL);
assert(ctx->initialized);
assert(ctx->initialized != 0);
unsigned long long virt_addr_space_size =
(unsigned long long)ctx->va_max_address + 1;
assert(virt_addr_space_size > 0);
(unsigned long long)ctx->va_max_address + 1U;
assert(virt_addr_space_size > 0U);
if (!IS_PAGE_ALIGNED(base_va)) {
WARN("%s: Address %p is not aligned on a page boundary.\n",
__func__, (void *)base_va);
WARN("%s: Address 0x%lx is not aligned on a page boundary.\n",
__func__, base_va);
return -EINVAL;
}
if (size == 0) {
if (size == 0U) {
WARN("%s: Size is 0.\n", __func__);
return -EINVAL;
}
if ((size % PAGE_SIZE) != 0) {
if ((size % PAGE_SIZE) != 0U) {
WARN("%s: Size 0x%zx is not a multiple of a page size.\n",
__func__, size);
return -EINVAL;
}
if (((attr & MT_EXECUTE_NEVER) == 0) && ((attr & MT_RW) != 0)) {
if (((attr & MT_EXECUTE_NEVER) == 0U) && ((attr & MT_RW) != 0U)) {
WARN("%s: Mapping memory as read-write and executable not allowed.\n",
__func__);
return -EINVAL;
}
int pages_count = size / PAGE_SIZE;
size_t pages_count = size / PAGE_SIZE;
VERBOSE("Changing memory attributes of %i pages starting from address %p...\n",
pages_count, (void *)base_va);
VERBOSE("Changing memory attributes of %zu pages starting from address 0x%lx...\n",
pages_count, base_va);
uintptr_t base_va_original = base_va;
/*
* Sanity checks.
*/
for (int i = 0; i < pages_count; ++i) {
uint64_t *entry;
uint64_t desc;
int level;
for (size_t i = 0U; i < pages_count; ++i) {
const uint64_t *entry;
uint64_t desc, attr_index;
unsigned int level;
entry = find_xlat_table_entry(base_va,
ctx->base_table,
@ -473,7 +472,7 @@ int change_mem_attributes(xlat_ctx_t *ctx,
virt_addr_space_size,
&level);
if (entry == NULL) {
WARN("Address %p is not mapped.\n", (void *)base_va);
WARN("Address 0x%lx is not mapped.\n", base_va);
return -EINVAL;
}
@ -485,8 +484,8 @@ int change_mem_attributes(xlat_ctx_t *ctx,
*/
if (((desc & DESC_MASK) != PAGE_DESC) ||
(level != XLAT_TABLE_LEVEL_MAX)) {
WARN("Address %p is not mapped at the right granularity.\n",
(void *)base_va);
WARN("Address 0x%lx is not mapped at the right granularity.\n",
base_va);
WARN("Granularity is 0x%llx, should be 0x%x.\n",
(unsigned long long)XLAT_BLOCK_SIZE(level), PAGE_SIZE);
return -EINVAL;
@ -495,11 +494,11 @@ int change_mem_attributes(xlat_ctx_t *ctx,
/*
* If the region type is device, it shouldn't be executable.
*/
int attr_index = (desc >> ATTR_INDEX_SHIFT) & ATTR_INDEX_MASK;
attr_index = (desc >> ATTR_INDEX_SHIFT) & ATTR_INDEX_MASK;
if (attr_index == ATTR_DEVICE_INDEX) {
if ((attr & MT_EXECUTE_NEVER) == 0) {
WARN("Setting device memory as executable at address %p.",
(void *)base_va);
if ((attr & MT_EXECUTE_NEVER) == 0U) {
WARN("Setting device memory as executable at address 0x%lx.",
base_va);
return -EINVAL;
}
}
@ -510,14 +509,14 @@ int change_mem_attributes(xlat_ctx_t *ctx,
/* Restore original value. */
base_va = base_va_original;
for (int i = 0; i < pages_count; ++i) {
for (unsigned int i = 0U; i < pages_count; ++i) {
uint32_t old_attr, new_attr;
uint64_t *entry;
int level;
unsigned long long addr_pa;
uint32_t old_attr = 0U, new_attr;
uint64_t *entry = NULL;
unsigned int level = 0U;
unsigned long long addr_pa = 0ULL;
get_mem_attributes_internal(ctx, base_va, &old_attr,
(void) get_mem_attributes_internal(ctx, base_va, &old_attr,
&entry, &addr_pa, &level);
/*

4
plat/rpi3/include/platform_def.h
View File

@ -217,8 +217,8 @@
*/
#define ADDR_SPACE_SIZE (ULL(1) << 32)
#define MAX_MMAP_REGIONS U(8)
#define MAX_XLAT_TABLES U(4)
#define MAX_MMAP_REGIONS 8
#define MAX_XLAT_TABLES 4
#define MAX_IO_DEVICES U(3)
#define MAX_IO_HANDLES U(4)