diff --git a/rpcs3/Emu/Cell/Modules/sysPrxForUser.cpp b/rpcs3/Emu/Cell/Modules/sysPrxForUser.cpp
index 8e0b5c511a..172a3bda92 100644
--- a/rpcs3/Emu/Cell/Modules/sysPrxForUser.cpp
+++ b/rpcs3/Emu/Cell/Modules/sysPrxForUser.cpp
@@ -144,21 +144,27 @@ s32 sys_lv2coredump_D725F320()
 	fmt::raw_error(__func__);
 }
 
-// quick notes on sys_crash_dump_(get|set)_user_log_area
-// (only tested with Destiny BLUS31181)
-// unk1 is always 0
-// unk2 is a pointer to a cstring
-// unk3 is a pointer to... something? a struct maybe?
-
-s32 sys_crash_dump_get_user_log_area(u32 unk1, vm::ptr<char> unk2, vm::ptr<void> unk3)
+error_code sys_crash_dump_get_user_log_area(u8 index, vm::ptr<sys_crash_dump_log_area_info_t> entry)
 {
-	sysPrxForUser.todo("sys_crash_dump_get_user_log_area(unk1=%d, unk2=*0x%x, unk3=*0x%x)", unk1, unk2, unk3);
+	sysPrxForUser.todo("sys_crash_dump_get_user_log_area(index=%d, entry=*0x%x)", index, entry);
+
+	if (index > SYS_CRASH_DUMP_MAX_LOG_AREA || !entry)
+	{
+		return CELL_EINVAL;
+	}
+
 	return CELL_OK;
 }
 
-s32 sys_crash_dump_set_user_log_area(u32 unk1, vm::ptr<char> unk2, vm::ptr<void> unk3)
+error_code sys_crash_dump_set_user_log_area(u8 index, vm::ptr<sys_crash_dump_log_area_info_t> new_entry)
 {
-	sysPrxForUser.todo("sys_crash_dump_set_user_log_area(unk1=%d, unk2=*0x%x %s, unk3=*0x%x)", unk1, unk2, unk2, unk3);
+	sysPrxForUser.todo("sys_crash_dump_set_user_log_area(index=%d, new_entry=*0x%x)", index, new_entry);
+
+	if (index > SYS_CRASH_DUMP_MAX_LOG_AREA || !new_entry)
+	{
+		return CELL_EINVAL;
+	}
+
 	return CELL_OK;
 }
 
diff --git a/rpcs3/Emu/Cell/Modules/sysPrxForUser.h b/rpcs3/Emu/Cell/Modules/sysPrxForUser.h
index beedcd9c78..4472998c9e 100644
--- a/rpcs3/Emu/Cell/Modules/sysPrxForUser.h
+++ b/rpcs3/Emu/Cell/Modules/sysPrxForUser.h
@@ -1,4 +1,4 @@
-#pragma once
+#pragma once
 
 
 
@@ -42,6 +42,19 @@ struct sys_lwmutex_locker
 	}
 };
 
+enum
+{
+	SYS_CRASH_DUMP_MAX_LABEL_SIZE = 16,
+	SYS_CRASH_DUMP_MAX_LOG_AREA   = 127 // not actually defined in CELL
+};
+
+struct sys_crash_dump_log_area_info_t
+{
+	char label[SYS_CRASH_DUMP_MAX_LABEL_SIZE]; // 15 + 1 (0 terminated)
+	vm::ptr<void> addr;
+	be_t<u64> size;
+};
+
 struct sys_lwcond_t;
 struct sys_lwcond_attribute_t;