coreboot: tiered imd
A tiered imd allows for both small and large allocations. The small allocations are packed into a large region. Utilizing a tiered imd reduces internal fragmentation within the imd. Change-Id: I0bcd6473aacbc714844815b24d77cb5c542abdd0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8623 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marc.jones@se-eng.com>
This commit is contained in:
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20686d851c
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cac5050623
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@ -58,6 +58,7 @@
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#define CBMEM_ID_HOB_POINTER 0x484f4221
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#define CBMEM_ID_IGD_OPREGION 0x4f444749
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#define CBMEM_ID_IMD_ROOT 0xff4017ff
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#define CBMEM_ID_IMD_SMALL 0x53a11439
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#define CBMEM_ID_MEMINFO 0x494D454D
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#define CBMEM_ID_MPTABLE 0x534d5054
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#define CBMEM_ID_MRCDATA 0x4d524344
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@ -105,6 +106,7 @@ struct cbmem_id_to_name {
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{ CBMEM_ID_FREESPACE, "FREE SPACE " }, \
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{ CBMEM_ID_GDT, "GDT " }, \
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{ CBMEM_ID_IMD_ROOT, "IMD ROOT " }, \
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{ CBMEM_ID_IMD_SMALL, "IMD SMALL " }, \
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{ CBMEM_ID_MEMINFO, "MEM INFO " }, \
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{ CBMEM_ID_MPTABLE, "SMP TABLE " }, \
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{ CBMEM_ID_MRCDATA, "MRC DATA " }, \
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@ -81,6 +81,18 @@ void imd_handle_init_partial_recovery(struct imd *imd);
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*/
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int imd_create_empty(struct imd *imd, size_t root_size, size_t entry_align);
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/*
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* Create an empty imd with both large and small allocations. The small
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* allocations come from a fixed imd stored internally within the large
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* imd. The region allocated for tracking the smaller allocations is dependent
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* on the small root_size and the large entry alignment by calculating the
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* number of entries within the small imd and multiplying that by the small
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* entry alignment.
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*/
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int imd_create_tiered_empty(struct imd *imd,
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size_t lg_root_size, size_t lg_entry_align,
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size_t sm_root_size, size_t sm_entry_align);
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/*
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* Recover a previously created imd.
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*/
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@ -131,9 +143,13 @@ int imd_print_entries(const struct imd *imd, const struct imd_lookup *lookup,
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* NOTE: Do not directly touch any fields within this structure. An imd pointer
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* is meant to be opaque, but the fields are exposed for stack allocation.
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*/
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struct imd {
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struct imdr {
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uintptr_t limit;
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void *r;
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};
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struct imd {
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struct imdr lg;
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struct imdr sm;
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};
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#endif /* _IMD_H_ */
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484
src/lib/imd.c
484
src/lib/imd.c
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@ -28,6 +28,7 @@
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static const uint32_t IMD_ROOT_PTR_MAGIC = 0xc0389481;
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static const uint32_t IMD_ENTRY_MAGIC = ~0xc0389481;
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static const uint32_t SMALL_REGION_ID = CBMEM_ID_IMD_SMALL;
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static const size_t LIMIT_ALIGN = 4096;
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/* In-memory data structures. */
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@ -69,20 +70,20 @@ static bool imd_root_pointer_valid(const struct imd_root_pointer *rp)
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return !!(rp->magic == IMD_ROOT_PTR_MAGIC);
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}
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static struct imd_root *imd_root(const struct imd *imd)
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static struct imd_root *imdr_root(const struct imdr *imdr)
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{
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return imd->r;
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return imdr->r;
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}
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/*
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* The root pointer is relative to the upper limit of the imd. i.e. It sits
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* just below the upper limit.
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*/
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static struct imd_root_pointer *imd_get_root_pointer(const struct imd *imd)
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static struct imd_root_pointer *imdr_get_root_pointer(const struct imdr *imdr)
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{
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struct imd_root_pointer *rp;
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rp = relative_pointer((void *)imd->limit, -sizeof(*rp));
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rp = relative_pointer((void *)imdr->limit, -sizeof(*rp));
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return rp;
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}
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@ -93,6 +94,39 @@ static void imd_link_root(struct imd_root_pointer *rp, struct imd_root *r)
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rp->root_offset = (int32_t)((intptr_t)r - (intptr_t)rp);
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}
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static struct imd_entry *root_last_entry(struct imd_root *r)
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{
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return &r->entries[r->num_entries - 1];
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}
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static size_t root_num_entries(size_t root_size)
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{
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size_t entries_size;
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entries_size = root_size;
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entries_size -= sizeof(struct imd_root_pointer);
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entries_size -= sizeof(struct imd_root);
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return entries_size / sizeof(struct imd_entry);
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}
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static size_t imd_root_data_left(struct imd_root *r)
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{
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struct imd_entry *last_entry;
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last_entry = root_last_entry(r);
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if (r->max_offset != 0)
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return last_entry->start_offset - r->max_offset;
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return ~(size_t)0;
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}
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static bool root_is_locked(const struct imd_root *r)
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{
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return !!(r->flags & IMD_FLAG_LOCKED);
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}
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static void imd_entry_assign(struct imd_entry *e, uint32_t id,
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ssize_t offset, size_t size)
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{
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@ -102,50 +136,32 @@ static void imd_entry_assign(struct imd_entry *e, uint32_t id,
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e->id = id;
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}
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static bool root_is_locked(const struct imd_root *r)
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{
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return !!(r->flags & IMD_FLAG_LOCKED);
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}
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static struct imd_entry *root_last_entry(struct imd_root *r)
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{
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return &r->entries[r->num_entries - 1];
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}
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/* Initialize imd handle. */
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void imd_handle_init(struct imd *imd, void *upper_limit)
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static void imdr_init(struct imdr *ir, void *upper_limit)
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{
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uintptr_t limit = (uintptr_t)upper_limit;
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/* Upper limit is aligned down to 4KiB */
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imd->limit = ALIGN_DOWN(limit, LIMIT_ALIGN);
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imd->r = NULL;
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ir->limit = ALIGN_DOWN(limit, LIMIT_ALIGN);
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ir->r = NULL;
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}
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void imd_handle_init_partial_recovery(struct imd *imd)
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{
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struct imd_root_pointer *rp;
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imd_handle_init(imd, (void *)imd->limit);
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rp = imd_get_root_pointer(imd);
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imd->r = relative_pointer(rp, rp->root_offset);
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}
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int imd_create_empty(struct imd *imd, size_t root_size, size_t entry_align)
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static int imdr_create_empty(struct imdr *imdr, size_t root_size,
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size_t entry_align)
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{
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struct imd_root_pointer *rp;
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struct imd_root *r;
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struct imd_entry *e;
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ssize_t root_offset;
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size_t entries_size;
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if (!imd->limit)
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if (!imdr->limit)
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return -1;
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/* root_size and entry_align should be a power of 2. */
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assert(IS_POWER_OF_2(root_size));
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assert(IS_POWER_OF_2(entry_align));
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if (!imdr->limit)
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return -1;
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/*
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* root_size needs to be large enough to accomodate root pointer and
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* root book keeping structure. The caller needs to ensure there's
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@ -162,23 +178,19 @@ int imd_create_empty(struct imd *imd, size_t root_size, size_t entry_align)
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if (entry_align > root_size)
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return -1;
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rp = imd_get_root_pointer(imd);
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rp = imdr_get_root_pointer(imdr);
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root_offset = -(ssize_t)root_size;
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/* Set root pointer. */
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imd->r = relative_pointer((void *)imd->limit, root_offset);
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r = imd_root(imd);
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imdr->r = relative_pointer((void *)imdr->limit, root_offset);
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r = imdr_root(imdr);
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imd_link_root(rp, r);
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memset(r, 0, sizeof(*r));
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r->entry_align = entry_align;
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/* Calculate size left for entries. */
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entries_size = root_size;
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entries_size -= sizeof(*rp);
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entries_size -= sizeof(*r);
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r->max_entries = entries_size / sizeof(r->entries[0]);
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r->max_entries = root_num_entries(root_size);
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/* Fill in first entry covering the root region. */
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r->num_entries = 1;
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@ -190,41 +202,17 @@ int imd_create_empty(struct imd *imd, size_t root_size, size_t entry_align)
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return 0;
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}
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int imd_limit_size(struct imd *imd, size_t max_size)
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{
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struct imd_root *r;
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ssize_t smax_size;
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size_t root_size;
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r = imd_root(imd);
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if (r == NULL)
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return -1;
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root_size = imd->limit - (uintptr_t)r;
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if (max_size < root_size)
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return -1;
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/* Take into account the root size. */
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smax_size = max_size - root_size;
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smax_size = -smax_size;
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r->max_offset = smax_size;
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return 0;
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}
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int imd_recover(struct imd *imd)
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static int imdr_recover(struct imdr *imdr)
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{
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struct imd_root_pointer *rp;
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struct imd_root *r;
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uintptr_t low_limit;
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size_t i;
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if (!imd->limit);
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if (!imdr->limit)
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return -1;
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rp = imd_get_root_pointer(imd);
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rp = imdr_get_root_pointer(imdr);
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if (!imd_root_pointer_valid(rp))
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return -1;
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@ -233,7 +221,7 @@ int imd_recover(struct imd *imd)
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/* Confirm the root and root pointer are just under the limit. */
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if (ALIGN_UP((uintptr_t)&r->entries[r->max_entries], LIMIT_ALIGN) !=
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imd->limit)
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imdr->limit)
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return -1;
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if (r->num_entries > r->max_entries)
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@ -259,59 +247,76 @@ int imd_recover(struct imd *imd)
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start_addr = (uintptr_t)relative_pointer(r, e->start_offset);
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if (start_addr < low_limit)
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return -1;
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if (start_addr >= imd->limit ||
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(start_addr + e->size) > imd->limit)
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if (start_addr >= imdr->limit ||
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(start_addr + e->size) > imdr->limit)
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return -1;
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}
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/* Set root pointer. */
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imd->r = r;
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imdr->r = r;
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return 0;
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}
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int imd_lockdown(struct imd *imd)
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{
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struct imd_root *r;
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r = imd_root(imd);
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if (r == NULL)
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return -1;
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r->flags |= IMD_FLAG_LOCKED;
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return 0;
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}
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int imd_region_used(struct imd *imd, void **base, size_t *size)
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static const struct imd_entry *imdr_entry_find(const struct imdr *imdr,
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uint32_t id)
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{
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struct imd_root *r;
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struct imd_entry *e;
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void *low_addr;
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size_t sz_used;
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size_t i;
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if (!imd->limit)
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return -1;
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r = imdr_root(imdr);
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r = imd_root(imd);
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if (r == NULL)
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return NULL;
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e = NULL;
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/* Skip first entry covering the root. */
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for (i = 1; i < r->num_entries; i++) {
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if (id != r->entries[i].id)
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continue;
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e = &r->entries[i];
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break;
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}
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return e;
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}
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static int imdr_limit_size(struct imdr *imdr, size_t max_size)
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{
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struct imd_root *r;
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ssize_t smax_size;
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size_t root_size;
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r = imdr_root(imdr);
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if (r == NULL)
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return -1;
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/* Use last entry to obtain lowest address. */
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e = root_last_entry(r);
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root_size = imdr->limit - (uintptr_t)r;
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low_addr = relative_pointer(r, e->start_offset);
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if (max_size < root_size)
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return -1;
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/* Total size used is the last entry's base up to the limit. */
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sz_used = imd->limit - (uintptr_t)low_addr;
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/* Take into account the root size. */
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smax_size = max_size - root_size;
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smax_size = -smax_size;
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*base = low_addr;
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*size = sz_used;
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r->max_offset = smax_size;
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return 0;
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}
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static size_t imdr_entry_size(const struct imdr *imdr,
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const struct imd_entry *e)
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{
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return e->size;
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}
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static void *imdr_entry_at(const struct imdr *imdr, const struct imd_entry *e)
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{
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return relative_pointer(imdr_root(imdr), e->start_offset);
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}
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static struct imd_entry *imd_entry_add_to_root(struct imd_root *r, uint32_t id,
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size_t size)
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{
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/* Determine total size taken up by entry. */
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used_size = ALIGN_UP(size, r->entry_align);
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last_entry = root_last_entry(r);
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/* See if size overflows imd total size. */
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if (r->max_offset != 0) {
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size_t remaining = last_entry->start_offset - r->max_offset;
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if (used_size > remaining)
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if (used_size > imd_root_data_left(r))
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return NULL;
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}
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/*
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* Determine if offset field overflows. All offsets should be lower
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* than the previous one.
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*/
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last_entry = root_last_entry(r);
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e_offset = last_entry->start_offset;
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e_offset -= (ssize_t)used_size;
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if (e_offset > last_entry->start_offset)
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@ -353,12 +353,12 @@ static struct imd_entry *imd_entry_add_to_root(struct imd_root *r, uint32_t id,
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return entry;
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}
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const struct imd_entry *imd_entry_add(const struct imd *imd, uint32_t id,
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size_t size)
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static const struct imd_entry *imdr_entry_add(const struct imdr *imdr,
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uint32_t id, size_t size)
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{
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struct imd_root *r;
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r = imd_root(imd);
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r = imdr_root(imdr);
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if (r == NULL)
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return NULL;
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@ -369,26 +369,228 @@ const struct imd_entry *imd_entry_add(const struct imd *imd, uint32_t id,
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return imd_entry_add_to_root(r, id, size);
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}
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const struct imd_entry *imd_entry_find(const struct imd *imd, uint32_t id)
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static bool imdr_has_entry(const struct imdr *imdr, const struct imd_entry *e)
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{
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struct imd_root *r;
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size_t idx;
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r = imdr_root(imdr);
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if (r == NULL)
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return false;
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/* Determine if the entry is within this root structure. */
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idx = e - &r->entries[0];
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if (idx >= r->num_entries)
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return false;
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return true;
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}
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static const struct imdr *imd_entry_to_imdr(const struct imd *imd,
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const struct imd_entry *entry)
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{
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if (imdr_has_entry(&imd->lg, entry))
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return &imd->lg;
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if (imdr_has_entry(&imd->sm, entry))
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return &imd->sm;
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return NULL;
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}
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/* Initialize imd handle. */
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void imd_handle_init(struct imd *imd, void *upper_limit)
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{
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imdr_init(&imd->lg, upper_limit);
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imdr_init(&imd->sm, NULL);
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}
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void imd_handle_init_partial_recovery(struct imd *imd)
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{
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const struct imd_entry *e;
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struct imd_root_pointer *rp;
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struct imdr *imdr;
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imd_handle_init(imd, (void *)imd->lg.limit);
|
||||
|
||||
/* Initialize root pointer for the large regions. */
|
||||
imdr = &imd->lg;
|
||||
rp = imdr_get_root_pointer(imdr);
|
||||
imdr->r = relative_pointer(rp, rp->root_offset);
|
||||
|
||||
e = imdr_entry_find(imdr, SMALL_REGION_ID);
|
||||
|
||||
if (e == NULL)
|
||||
return;
|
||||
|
||||
imd->sm.limit = (uintptr_t)imdr_entry_at(imdr, e);
|
||||
imd->sm.limit += imdr_entry_size(imdr, e);
|
||||
imdr = &imd->sm;
|
||||
rp = imdr_get_root_pointer(imdr);
|
||||
imdr->r = relative_pointer(rp, rp->root_offset);
|
||||
}
|
||||
|
||||
int imd_create_empty(struct imd *imd, size_t root_size, size_t entry_align)
|
||||
{
|
||||
return imdr_create_empty(&imd->lg, root_size, entry_align);
|
||||
}
|
||||
|
||||
int imd_create_tiered_empty(struct imd *imd,
|
||||
size_t lg_root_size, size_t lg_entry_align,
|
||||
size_t sm_root_size, size_t sm_entry_align)
|
||||
{
|
||||
size_t sm_region_size;;
|
||||
const struct imd_entry *e;
|
||||
struct imdr *imdr;
|
||||
|
||||
imdr = &imd->lg;
|
||||
|
||||
if (imdr_create_empty(imdr, lg_root_size, lg_entry_align) != 0)
|
||||
return -1;
|
||||
|
||||
/* Calculate the size of the small region to request. */
|
||||
sm_region_size = root_num_entries(sm_root_size) * sm_entry_align;
|
||||
sm_region_size += sm_root_size;
|
||||
sm_region_size = ALIGN_UP(sm_region_size, lg_entry_align);
|
||||
|
||||
/* Add a new entry to the large region to cover the root and entries. */
|
||||
e = imdr_entry_add(imdr, SMALL_REGION_ID, sm_region_size);
|
||||
|
||||
if (e == NULL)
|
||||
goto fail;
|
||||
|
||||
imd->sm.limit = (uintptr_t)imdr_entry_at(imdr, e);
|
||||
imd->sm.limit += sm_region_size;
|
||||
|
||||
if (imdr_create_empty(&imd->sm, sm_root_size, sm_entry_align) != 0 ||
|
||||
imdr_limit_size(&imd->sm, sm_region_size))
|
||||
goto fail;
|
||||
|
||||
return 0;
|
||||
fail:
|
||||
imd_handle_init(imd, (void *)imdr->limit);
|
||||
return -1;
|
||||
}
|
||||
|
||||
int imd_recover(struct imd *imd)
|
||||
{
|
||||
const struct imd_entry *e;
|
||||
uintptr_t small_upper_limit;
|
||||
struct imdr *imdr;
|
||||
|
||||
imdr = &imd->lg;
|
||||
if (imdr_recover(imdr) != 0)
|
||||
return -1;
|
||||
|
||||
/* Determine if small region is region is present. */
|
||||
e = imdr_entry_find(imdr, SMALL_REGION_ID);
|
||||
|
||||
if (e == NULL)
|
||||
return 0;
|
||||
|
||||
small_upper_limit = (uintptr_t)imdr_entry_at(imdr, e);
|
||||
small_upper_limit += imdr_entry_size(imdr, e);
|
||||
|
||||
imd->sm.limit = small_upper_limit;
|
||||
|
||||
/* Tear down any changes on failure. */
|
||||
if (imdr_recover(&imd->sm) != 0) {
|
||||
imd_handle_init(imd, (void *)imd->lg.limit);
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int imd_limit_size(struct imd *imd, size_t max_size)
|
||||
{
|
||||
return imdr_limit_size(&imd->lg, max_size);
|
||||
}
|
||||
|
||||
int imd_lockdown(struct imd *imd)
|
||||
{
|
||||
struct imd_root *r;
|
||||
|
||||
r = imdr_root(&imd->lg);
|
||||
if (r == NULL)
|
||||
return -1;
|
||||
|
||||
r->flags |= IMD_FLAG_LOCKED;
|
||||
|
||||
r = imdr_root(&imd->sm);
|
||||
if (r != NULL)
|
||||
r->flags |= IMD_FLAG_LOCKED;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int imd_region_used(struct imd *imd, void **base, size_t *size)
|
||||
{
|
||||
struct imd_root *r;
|
||||
struct imd_entry *e;
|
||||
size_t i;
|
||||
void *low_addr;
|
||||
size_t sz_used;
|
||||
|
||||
r = imd_root(imd);
|
||||
if (!imd->lg.limit)
|
||||
return -1;
|
||||
|
||||
r = imdr_root(&imd->lg);
|
||||
|
||||
if (r == NULL)
|
||||
return NULL;
|
||||
return -1;
|
||||
|
||||
e = NULL;
|
||||
/* Skip first entry covering the root. */
|
||||
for (i = 1; i < r->num_entries; i++) {
|
||||
if (id == r->entries[i].id) {
|
||||
e = &r->entries[i];
|
||||
break;
|
||||
/* Use last entry to obtain lowest address. */
|
||||
e = root_last_entry(r);
|
||||
|
||||
low_addr = relative_pointer(r, e->start_offset);
|
||||
|
||||
/* Total size used is the last entry's base up to the limit. */
|
||||
sz_used = imd->lg.limit - (uintptr_t)low_addr;
|
||||
|
||||
*base = low_addr;
|
||||
*size = sz_used;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
const struct imd_entry *imd_entry_add(const struct imd *imd, uint32_t id,
|
||||
size_t size)
|
||||
{
|
||||
struct imd_root *r;
|
||||
const struct imdr *imdr;
|
||||
const struct imd_entry *e = NULL;
|
||||
|
||||
/*
|
||||
* Determine if requested size is less than 1/4 of small data
|
||||
* region is left.
|
||||
*/
|
||||
imdr = &imd->sm;
|
||||
r = imdr_root(imdr);
|
||||
|
||||
/* No small region. Use the large region. */
|
||||
if (r == NULL)
|
||||
return imdr_entry_add(&imd->lg, id, size);
|
||||
else if (size <= r->entry_align || size <= imd_root_data_left(r) / 4)
|
||||
e = imdr_entry_add(imdr, id, size);
|
||||
|
||||
/* Fall back on large region allocation. */
|
||||
if (e == NULL)
|
||||
e = imdr_entry_add(&imd->lg, id, size);
|
||||
|
||||
return e;
|
||||
}
|
||||
|
||||
const struct imd_entry *imd_entry_find(const struct imd *imd, uint32_t id)
|
||||
{
|
||||
const struct imd_entry *e;
|
||||
|
||||
/* Many of the smaller allocations are used a lot. Therefore, try
|
||||
* the small region first. */
|
||||
e = imdr_entry_find(&imd->sm, id);
|
||||
|
||||
if (e == NULL)
|
||||
e = imdr_entry_find(&imd->lg, id);
|
||||
|
||||
return e;
|
||||
}
|
||||
|
||||
|
@ -407,26 +609,32 @@ const struct imd_entry *imd_entry_find_or_add(const struct imd *imd,
|
|||
|
||||
size_t imd_entry_size(const struct imd *imd, const struct imd_entry *entry)
|
||||
{
|
||||
return entry->size;
|
||||
return imdr_entry_size(NULL, entry);
|
||||
}
|
||||
|
||||
void *imd_entry_at(const struct imd *imd, const struct imd_entry *entry)
|
||||
{
|
||||
struct imd_root *r;
|
||||
const struct imdr *imdr;
|
||||
|
||||
r = imd_root(imd);
|
||||
imdr = imd_entry_to_imdr(imd, entry);
|
||||
|
||||
if (r == NULL)
|
||||
if (imdr == NULL)
|
||||
return NULL;
|
||||
|
||||
return relative_pointer(r, entry->start_offset);
|
||||
return imdr_entry_at(imdr, entry);
|
||||
}
|
||||
|
||||
int imd_entry_remove(const struct imd *imd, const struct imd_entry *entry)
|
||||
{
|
||||
struct imd_root *r;
|
||||
const struct imdr *imdr;
|
||||
|
||||
r = imd_root(imd);
|
||||
imdr = imd_entry_to_imdr(imd, entry);
|
||||
|
||||
if (imdr == NULL)
|
||||
return - 1;
|
||||
|
||||
r = imdr_root(imdr);
|
||||
|
||||
if (r == NULL)
|
||||
return -1;
|
||||
|
@ -442,20 +650,17 @@ int imd_entry_remove(const struct imd *imd, const struct imd_entry *entry)
|
|||
return 0;
|
||||
}
|
||||
|
||||
int imd_print_entries(const struct imd *imd, const struct imd_lookup *lookup,
|
||||
size_t size)
|
||||
static void imdr_print_entries(const struct imdr *imdr, const char *indent,
|
||||
const struct imd_lookup *lookup, size_t size)
|
||||
{
|
||||
struct imd_root *r;
|
||||
size_t i;
|
||||
size_t j;
|
||||
|
||||
if (imd == NULL)
|
||||
return -1;
|
||||
if (imdr == NULL)
|
||||
return;
|
||||
|
||||
r = imd_root(imd);
|
||||
|
||||
if (r == NULL)
|
||||
return -1;
|
||||
r = imdr_root(imdr);
|
||||
|
||||
for (i = 0; i < r->num_entries; i++) {
|
||||
const char *name = NULL;
|
||||
|
@ -468,13 +673,28 @@ int imd_print_entries(const struct imd *imd, const struct imd_lookup *lookup,
|
|||
}
|
||||
}
|
||||
|
||||
printk(BIOS_DEBUG, "%s", indent);
|
||||
|
||||
if (name == NULL)
|
||||
printk(BIOS_DEBUG, "%08x ", e->id);
|
||||
else
|
||||
printk(BIOS_DEBUG, "%s", name);
|
||||
printk(BIOS_DEBUG, "%2zu. ", i);
|
||||
printk(BIOS_DEBUG, "%p ", imd_entry_at(imd, e));
|
||||
printk(BIOS_DEBUG, "%08zx\n", imd_entry_size(imd, e));
|
||||
printk(BIOS_DEBUG, "%p ", imdr_entry_at(imdr, e));
|
||||
printk(BIOS_DEBUG, "%08zx\n", imdr_entry_size(imdr, e));
|
||||
}
|
||||
}
|
||||
|
||||
int imd_print_entries(const struct imd *imd, const struct imd_lookup *lookup,
|
||||
size_t size)
|
||||
{
|
||||
if (imdr_root(&imd->lg) == NULL)
|
||||
return -1;
|
||||
|
||||
imdr_print_entries(&imd->lg, "", lookup, size);
|
||||
if (imdr_root(&imd->sm) != NULL) {
|
||||
printk(BIOS_DEBUG, "IMD small region:\n");
|
||||
imdr_print_entries(&imd->sm, " ", lookup, size);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
|
Loading…
Reference in New Issue