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kernel: memory: PRT mapped area setter/getter

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psucien 2025-01-01 21:04:59 +01:00
parent 444016df7e
commit 40211642ca
1 changed files with 39 additions and 0 deletions
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39
src/core/libraries/kernel/memory.cpp
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@ -505,6 +505,41 @@ int PS4_SYSV_ABI posix_munmap(void* addr, size_t len) {
return result;
}
static constexpr int MAX_PTR_APERTURES = 3;
static constexpr VAddr PRT_AREA_START_ADDR = 0x1000000000;
static constexpr size_t PRT_AREA_SIZE = 0xec00000000;
static std::array<std::pair<VAddr, size_t>, MAX_PTR_APERTURES> PrtApertures{};
int PS4_SYSV_ABI sceKernelSetPrtAperture(int id, VAddr address, size_t size) {
if (id < 0 || id >= MAX_PTR_APERTURES) {
return ORBIS_KERNEL_ERROR_EINVAL;
}
if (address < PRT_AREA_START_ADDR || address + size > PRT_AREA_START_ADDR + PRT_AREA_SIZE) {
return ORBIS_KERNEL_ERROR_EINVAL;
}
if (address % 4096 != 0) {
return ORBIS_KERNEL_ERROR_EINVAL;
}
LOG_WARNING(Kernel_Vmm,
"PRT aperture id = {}, address = {:#x}, size = {:#x} is set but not used", id,
address, size);
PrtApertures[id] = {address, size};
return ORBIS_OK;
}
int PS4_SYSV_ABI sceKernelGetPrtAperture(int id, VAddr* addres, size_t* size) {
if (id < 0 || id >= MAX_PTR_APERTURES) {
return ORBIS_KERNEL_ERROR_EINVAL;
}
std::tie(*addres, *size) = PrtApertures[id];
return ORBIS_OK;
}
void RegisterMemory(Core::Loader::SymbolsResolver* sym) {
LIB_FUNCTION("rTXw65xmLIA", "libkernel", 1, "libkernel", 1, 1, sceKernelAllocateDirectMemory);
LIB_FUNCTION("B+vc2AO2Zrc", "libkernel", 1, "libkernel", 1, 1,
@ -551,6 +586,10 @@ void RegisterMemory(Core::Loader::SymbolsResolver* sym) {
LIB_FUNCTION("BPE9s9vQQXo", "libScePosix", 1, "libkernel", 1, 1, posix_mmap);
LIB_FUNCTION("UqDGjXA5yUM", "libkernel", 1, "libkernel", 1, 1, posix_munmap);
LIB_FUNCTION("UqDGjXA5yUM", "libScePosix", 1, "libkernel", 1, 1, posix_munmap);
// PRT memory management
LIB_FUNCTION("BohYr-F7-is", "libkernel", 1, "libkernel", 1, 1, sceKernelSetPrtAperture);
LIB_FUNCTION("L0v2Go5jOuM", "libkernel", 1, "libkernel", 1, 1, sceKernelGetPrtAperture);
}
} // namespace Libraries::Kernel