dburr/Citron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

core: Respect memory permissions in Map

Browse source
This commit is contained in:
GPUCode 2023-11-17 21:43:15 +02:00 • committed by t895
parent 4766baddf3
commit 5938a9582a
6 changed files with 117 additions and 58 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/common/host_memory.h
View file

@ -4,11 +4,20 @@
#pragma once
#include <memory>
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/virtual_buffer.h"
namespace Common {
enum class MemoryPermission : u32 {
Read = 1 << 0,
Write = 1 << 1,
ReadWrite = Read | Write,
Execute = 1 << 2,
};
DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission)
/**
* A low level linear memory buffer, which supports multiple mappings
* Its purpose is to rebuild a given sparse memory layout, including mirrors.
@ -31,11 +40,11 @@ public:
HostMemory(HostMemory&& other) noexcept;
HostMemory& operator=(HostMemory&& other) noexcept;
void Map(size_t virtual_offset, size_t host_offset, size_t length);
void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms);
void Unmap(size_t virtual_offset, size_t length);
void Protect(size_t virtual_offset, size_t length, bool read, bool write);
void Protect(size_t virtual_offset, size_t length, bool read, bool write, bool execute = false);
void EnableDirectMappedAddress();