xnu-7195.60.75.tar.gz

[apple/xnu.git] / osfmk / arm64 / hibernate_arm64.c

diff --git a/osfmk/arm64/hibernate_arm64.c b/osfmk/arm64/hibernate_arm64.c
index 5a3e356b4c11ca442a2483b9d61541219b51f6bb..18851d929efa0fe1a59c4f8f6398eba70524b88f 100644 (file)
--- a/osfmk/arm64/hibernate_arm64.c
+++ b/osfmk/arm64/hibernate_arm64.c
@@ -50,10 +50,6 @@
 #include <arm/cpu_data_internal.h>
 #include <machine/pal_hibernate.h>
 
-#if HIBERNATE_HMAC_IMAGE
-#include <arm64/hibernate_ppl_hmac.h>
-#include <arm64/ppl/ppl_hib.h>
-#endif /* HIBERNATE_HMAC_IMAGE */
 
 extern void
 qsort(void *a, size_t n, size_t es, int (*cmp)(const void *, const void *));
@@ -98,39 +94,9 @@ hibernate_page_list_allocate(boolean_t log)
        hibernate_page_list_t * list;
        hibernate_bitmap_t *    bitmap;
 
-#if HIBERNATE_HMAC_IMAGE
-       // Determine if any PPL-owned I/O ranges need to be hibernated, and if so,
-       // allocate bitmaps to represent those pages.
-       const ppl_hib_io_range *io_ranges = NULL;
-       uint16_t                num_io_ranges = 0;
-       hibernate_bitmap_t *    dram_ranges = NULL;
-       uint32_t                num_banks = 1;
-
-       ppl_hmac_get_io_ranges(&io_ranges, &num_io_ranges);
-
-       // Allocate a single DRAM range to cover kernel-managed memory and one range
-       // per PPL-owned I/O range that needs to be hibernated.
-       if (io_ranges != NULL && num_io_ranges > 0) {
-               num_banks += num_io_ranges;
-       }
-
-       dram_ranges = kheap_alloc(KHEAP_TEMP,
-           num_banks * sizeof(hibernate_bitmap_t), Z_WAITOK);
-       if (!dram_ranges) {
-               return NULL;
-       }
-
-       // The 0th dram range is used to represent kernel-managed memory, so skip it
-       // when adding I/O ranges.
-       for (unsigned int i = 1; i < num_banks; ++i) {
-               dram_ranges[i].first_page = io_ranges[i - 1].first_page;
-               dram_ranges[i].last_page = (io_ranges[i - 1].first_page + io_ranges[i - 1].page_count) - 1;
-       }
-#else
        // Allocate a single DRAM range to cover the kernel-managed memory.
        hibernate_bitmap_t      dram_ranges[1];
        uint32_t                num_banks = sizeof(dram_ranges) / sizeof(dram_ranges[0]);
-#endif /* HIBERNATE_HMAC_IMAGE */
 
        // All of kernel-managed memory can be described by one DRAM range
        set_dram_range(&dram_ranges[0], gPhysBase, gPhysSize);
@@ -176,10 +142,6 @@ hibernate_page_list_allocate(boolean_t log)
        }
 
 out:
-#if HIBERNATE_HMAC_IMAGE
-       kheap_free(KHEAP_TEMP, dram_ranges,
-           num_banks * sizeof(hibernate_bitmap_t));
-#endif /* HIBERNATE_HMAC_IMAGE */
 
        return list;
 }
@@ -294,9 +256,7 @@ hibernate_vm_locks_are_safe(void)
 void
 pal_hib_init(void)
 {
-#if HIBERNATE_HMAC_IMAGE
-       gHibernateGlobals.hmacRegBase = ppl_hmac_get_reg_base();
-#endif /* HIBERNATE_HMAC_IMAGE */
+       gHibernateGlobals.kernelSlide = gVirtBase - gPhysBase;
 }
 
 void