Ensure intr/syscall handlers fits in per-process PT

djphoenix · May 26, 2019 · 6a6e5f7 · 6a6e5f7
1 parent f1444fa
commit 6a6e5f7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/process/process.cpp b/src/process/process.cpp
@@ -277,7 +277,9 @@ void Process::startup() {
   handler &= KB4;
   sc_wrapper &= KB4;
   addPage(handler, reinterpret_cast<void*>(handler), 1);
+  addPage(handler + 0x1000, reinterpret_cast<void*>(handler + 0x1000), 1);
   addPage(sc_wrapper, reinterpret_cast<void*>(sc_wrapper), 1);
+  addPage(sc_wrapper + 0x1000, reinterpret_cast<void*>(sc_wrapper + 0x1000), 1);
   GDT::Entry *gdt_ent = reinterpret_cast<GDT::Entry*>(uintptr_t(gdt.addr) + 8 * 3);
   GDT::Entry *gdt_top = reinterpret_cast<GDT::Entry*>(uintptr_t(gdt.addr) + gdt.limit);