x86_pc: Start unavailable memory in legacy after memory end

Author: fwsGonzo

src/platform/x86_pc/os.cpp

@@ -202,7 +202,7 @@ void OS::legacy_boot()
 
     uintptr_t high_memory_size = mem.extended.total * 1024;
     INFO2("* High memory (from cmos): %i Kib", mem.extended.total);
-    OS::memory_end_ = 0x100000 + high_memory_size;
+    OS::memory_end_ = 0x100000 + high_memory_size - 1;
   }
 
   auto& memmap = memory_map();
@@ -216,7 +216,7 @@ void OS::legacy_boot()
   uintptr_t addr_max = std::numeric_limits<std::size_t>::max();
   uintptr_t span_max = std::numeric_limits<std::ptrdiff_t>::max();
 
-  uintptr_t unavail_start = OS::memory_end_;
+  uintptr_t unavail_start = OS::memory_end_+1;
   size_t interval = std::min(span_max, addr_max - unavail_start) - 1;
   uintptr_t unavail_end = unavail_start + interval;
 

src/platform/x86_pc/softreset.cpp

@@ -45,9 +45,9 @@ void OS::resume_softreset(intptr_t addr)
   data->checksum = csum_copy;
 
   /// restore known values
-  OS::liveupdate_loc_  = data->liveupdate_loc;
-  OS::memory_end_      = data->high_mem;
-  OS::cpu_mhz_    = data->cpu_freq;
+  OS::liveupdate_loc_ = data->liveupdate_loc;
+  OS::memory_end_     = data->high_mem;
+  OS::cpu_mhz_        = data->cpu_freq;
   x86::apic_timer_set_ticks(data->apic_ticks);
 
   /// call service-specific softreset handler

test/kernel/integration/LiveUpdate/config.json

@@ -30,6 +30,7 @@ void Service::start()
   if (liu::LiveUpdate::is_resumable() == false)
   {
     auto& inet = net::Super_stack::get<net::IP4>(0);
+    inet.network_config({10,0,0,49}, {255,255,255,0}, {10,0,0,1});
     setup_liveupdate_server(inet, 666, func);
     // signal test.py that the server is up
     printf("Ready to receive binary blob\n");