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Kernel: Move userspace virtual address range base to 0x10000

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Now that the shared bottom 2 MiB virtual address mappings are gone
userspace can use lower virtual addresses.
This commit is contained in:
Idan Horowitz 2021-12-19 19:36:42 +02:00 • committed by Brian Gianforcaro
parent fccd0432a1
commit 5f4a67434c
7 changed files with 18 additions and 4 deletions
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2
Userland/DevTools/UserspaceEmulator/Emulator.cpp
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@ -14,6 +14,7 @@
#include <AK/Format.h>
#include <AK/LexicalPath.h>
#include <AK/StringUtils.h>
#include <Kernel/API/MemoryLayout.h>
#include <LibCore/File.h>
#include <LibCore/MappedFile.h>
#include <LibELF/AuxiliaryVector.h>
@ -51,7 +52,6 @@ Emulator::Emulator(String const& executable_path, Vector<StringView> const& argu
{
m_malloc_tracer = make<MallocTracer>(*this);
static constexpr FlatPtr userspace_range_base = 0x00800000;
static constexpr FlatPtr userspace_range_ceiling = 0xbe000000;
#ifdef UE_ASLR
static constexpr FlatPtr page_mask = 0xfffff000u;