diff options
Diffstat (limited to 'src/usr/vfs/vfsrp.H')
| -rw-r--r-- | src/usr/vfs/vfsrp.H | 88 |
1 files changed, 84 insertions, 4 deletions
diff --git a/src/usr/vfs/vfsrp.H b/src/usr/vfs/vfsrp.H index ca4d13512..6c1feb7db 100644 --- a/src/usr/vfs/vfsrp.H +++ b/src/usr/vfs/vfsrp.H @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2011,2015 */ +/* Contributors Listed Below - COPYRIGHT 2011,2017 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -31,8 +31,11 @@ #include <sys/msg.h> #include <vector> #include <sys/sync.h> +#include <secureboot/service.H> +// Forward declarations struct msg_t; +class SecureRomManagerTest; namespace VFS { @@ -90,7 +93,9 @@ namespace VFS /** * Ctor */ - VfsRp() : iv_msgQ(NULL), iv_msg(NULL), iv_pnor_vaddr(0) + VfsRp() : iv_msgQ(NULL), iv_msg(NULL), iv_pnor_vaddr(0), + iv_hashPageTableOffset(0),iv_hashPageTableSize(0), + iv_protectedPayloadSize(0),iv_hbExtSecure(0) { mutex_init(&iv_mutex); } @@ -121,7 +126,7 @@ namespace VFS /** * Call _start on module. Montior for crash * @param[in] i_msg the message - * @note Does not return. + * @note Does not return. */ static void* execMonitored(void * i_msg); @@ -179,16 +184,91 @@ namespace VFS */ void _vfsWatcher(); + /** + * Verify page using secure hash page table + * + * @param[in] i_vaddr address to verify + * @param[in] i_baseOffset base offset within a PNOR section + * [Default 0 when called within VfsRP. + * Fill for test cases] + * @param[in] i_hashPageTableOffset hash page table offset based on + * iv_pnor_vaddr + * [Default 0 when called within VfsRP to + * get internal hpt offset. Otherwise + * filled in by test cases] + * + * @return errlog - error log to pass along shutdown path. + */ + errlHndl_t verify_page(uint64_t i_vaddr, + uint64_t i_baseOffset = 0, + uint64_t i_hashPageTableOffset = 0) const; + + /** + * @brief Determines the hash page table index associated with a + * vaddr. The hash page table has n-pages + 1 entries. + * + * @param[in] i_vaddr Vaddr the caller is accessing, + * @param[in] i_baseOffset base offset within a PNOR section + * [Optional - Used by test cases] + * + * @return index of the hash page table + */ + inline size_t getHashPageTableIndex (uint64_t i_vaddr, + uint64_t i_baseOffset = 0) const + { + assert(i_baseOffset <= i_vaddr); + return ( (i_vaddr - i_baseOffset) / PAGE_SIZE) + 1; + } + + /** + * @brief Returns a hash page table entry + * + * @param[in] i_pageTableVaddr Vaddr the caller is accessing + * @param[in] i_baseOffset base offset within a PNOR section + * [Optional - Used by test cases] + * @param[in] i_hashPageTableOffset hash page table offset. + * [Default to 0 when called within VfsRP] + * Filled in by test cases] + * + * @return single entry of hash page table + */ + inline PAGE_TABLE_ENTRY_t* getHashPageTableEntry(uint64_t i_vaddr, + uint64_t i_baseOffset = 0, + uint64_t i_hashPageTableOffset = 0) const + { + size_t l_index = getHashPageTableIndex(i_vaddr, i_baseOffset); + size_t l_offset = l_index * HASH_PAGE_TABLE_ENTRY_SIZE; + + // Decide whether to use the internal or passed in value for + // hash page table offset. + size_t l_hashPageTableOffset = (i_hashPageTableOffset == 0) ? + iv_hashPageTableOffset : + iv_pnor_vaddr + i_hashPageTableOffset; + return reinterpret_cast<PAGE_TABLE_ENTRY_t*> + (l_hashPageTableOffset+l_offset); + } + private: // data msg_q_t iv_msgQ; //!< message queue msg_t* iv_msg; //!< Current message being handled - uint64_t iv_pnor_vaddr; //!< virtual address of ext image in PFNOR + uint64_t iv_pnor_vaddr; //!< virtual address of ext image in PNOR + uint64_t iv_hashPageTableOffset; //!< virtual address of hashPageTable of ext image + uint64_t iv_hashPageTableSize; //!< size of hashPageTable of ext image + uint64_t iv_protectedPayloadSize; //!< size of entire protected payload of ext img + //!< Includes Hash page table and VFS module table + bool iv_hbExtSecure; //!< cache result if hostboot extended image is secure typedef std::vector<VfsSystemModule *> ModuleList_t; mutex_t iv_mutex; //!< lock for iv_loaded ModuleList_t iv_loaded; //!< Loaded modules + + friend class ::SecureRomManagerTest; + /** + * @brief Static instance function + */ + static VfsRp& getInstance(); }; }; // VFS namepsace |
