thermosphere: implement reading and writing guest memory

thermosphere/src/utils.c

@@ -27,44 +27,3 @@ __attribute__((noinline)) bool overlaps(u64 as, u64 ae, u64 bs, u64 be)
         return true;
     return false;
 }
-
-// TODO: put that elsewhere
-bool readEl1Memory(void *dst, uintptr_t addr, size_t size)
-{
-    // Note: what if we read uncached regions/not shared?
-    bool valid;
-
-    u64 flags = maskIrq();
-    uintptr_t pa = get_physical_address_el1_stage12(&valid, addr);
-    restoreInterruptFlags(flags);
-
-    if (!valid) {
-        return false;
-    }
-
-    memcpy(dst, (const void *)pa, size);
-
-    return true;
-}
-
-bool writeEl1Memory(uintptr_t addr, const void *src, size_t size)
-{
-    bool valid;
-
-    u64 flags = maskIrq();
-    uintptr_t pa = get_physical_address_el1_stage12(&valid, addr);
-    restoreInterruptFlags(flags);
-
-    if (!valid) {
-        return false;
-    }
-
-    memcpy((void *)pa, src, size);
-    cacheHandleSelfModifyingCodePoU((const void *)pa, size);
-
-    __tlb_invalidate_el1_stage12_local(); //FIXME FIXME FIXME
-    __dsb_sy();
-    __isb();
-
-    return true;
-}