diff options
Diffstat (limited to 'src/include/usr/targeting/attrrp.H')
| -rw-r--r-- | src/include/usr/targeting/attrrp.H | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/include/usr/targeting/attrrp.H b/src/include/usr/targeting/attrrp.H index 0c6f1aa8d..bc9425007 100644 --- a/src/include/usr/targeting/attrrp.H +++ b/src/include/usr/targeting/attrrp.H @@ -49,6 +49,10 @@ namespace TARGETING // Forward declaration of attribute section parsed information structure. struct AttrRP_Section; +// These constexprs are used by editPagePermissions function +constexpr uint32_t DEFAULT_PERMISSIONS = 0xFFFFFFFF; +constexpr uint8_t ALL_SECTION_TYPES = 0xFF; + #ifdef __HOSTBOOT_RUNTIME /** * @brief Structure used to store Node specific information @@ -264,6 +268,46 @@ class AttrRP static void init(errlHndl_t& io_taskRetErrl, bool i_isMpipl = false); #ifndef __HOSTBOOT_RUNTIME + + /** + * @brief Modifies the memory R/W permissions on VMM pages for a + * given type of AttrRP_Section. Valid types can be found + * in the generated file pnorheader.H. Valid permissions + * can be found in src/include/sys/mm.h . It was chosen to + * not use the enums to avoid needing to include the headers + * all over. + * + * @param[in] i_type The type of AttrRP_Section we want to apply the permission + * edits to. Valid options for the attrrp types are: + * SECTION_TYPE_PNOR_RO = 0x00 + * SECTION_TYPE_PNOR_RW = 0x01 + * SECTION_TYPE_HEAP_PNOR_INIT = 0x02 + * SECTION_TYPE_HEAP_ZERO_INIT = 0x03 + * SECTION_TYPE_HB_HEAP_ZERO_INIT = 0x0A + * ALL_SECTION_TYPES = 0xFF + * + * @param[in] i_permission The R/W permissions the user desires to apply to a + * given section. Note that values can be OR'ed + * together. Valid options are : + * READ_ONLY = 0x00000001 + * WRITABLE = 0x00000002 + * EXECUTABLE = 0x00000004 + * WRITE_TRACKED = 0x00000008 + * ALLOCATE_FROM_ZERO = 0x00000010 + * NO_ALLOCATE_FROM_ZERO = 0x00000020 + * NO_ACCESS = 0x00000040 + * BYPASS_HRMOR = 0x00000080 + * GUARDED = 0x00000100 + * DEFAULT_PERMISSIONS = 0xFFFFFFFF + * + * @note If the value 0xFF is passed in for i_type then all types will + * get permissions updated to i_permission. + * If the value 0xFFFF is passed in for i_permission then the sections + * will have their R/W permissions set up to the default values given + * in PNOR + */ + errlHndl_t editPagePermissions(uint8_t i_type, uint32_t i_permission); + /** * @brief Copies all present attribute sections to memory. * |
