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kern: add SvcCreateDeviceAddressSpace, SvcAttachDeviceAddressSpace

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This commit is contained in:
Michael Scire
2020-07-14 09:49:49 -07:00
committed by SciresM
parent 04f325cf5a
commit cfddb75398
6 changed files with 311 additions and 15 deletions
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51
libraries/libmesosphere/source/svc/kern_svc_device_address_space.cpp
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@@ -21,22 +21,61 @@ namespace ams::kern::svc {
namespace {
Result CreateDeviceAddressSpace(ams::svc::Handle *out, uint64_t das_address, uint64_t das_size) {
/* Validate input. */
R_UNLESS(util::IsAligned(das_address, PageSize), svc::ResultInvalidMemoryRegion());
R_UNLESS(util::IsAligned(das_size, PageSize), svc::ResultInvalidMemoryRegion());
R_UNLESS(das_size > 0, svc::ResultInvalidMemoryRegion());
R_UNLESS((das_address < das_address + das_size), svc::ResultInvalidMemoryRegion());
/* Create the device address space. */
KScopedAutoObject das = KDeviceAddressSpace::Create();
R_UNLESS(das.IsNotNull(), svc::ResultOutOfResource());
/* Initialize the device address space. */
R_TRY(das->Initialize(das_address, das_size));
/* Register the device address space. */
R_TRY(KDeviceAddressSpace::Register(das.GetPointerUnsafe()));
/* Add to the handle table. */
R_TRY(GetCurrentProcess().GetHandleTable().Add(out, das.GetPointerUnsafe()));
return ResultSuccess();
}
Result AttachDeviceAddressSpace(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
/* Get the device address space. */
KScopedAutoObject das = GetCurrentProcess().GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle);
R_UNLESS(das.IsNotNull(), svc::ResultInvalidHandle());
/* Attach. */
return das->Attach(device_name);
}
Result DetachDeviceAddressSpace(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
/* Get the device address space. */
KScopedAutoObject das = GetCurrentProcess().GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle);
R_UNLESS(das.IsNotNull(), svc::ResultInvalidHandle());
/* Detach. */
return das->Detach(device_name);
}
}
/* ============================= 64 ABI ============================= */
Result CreateDeviceAddressSpace64(ams::svc::Handle *out_handle, uint64_t das_address, uint64_t das_size) {
MESOSPHERE_PANIC("Stubbed SvcCreateDeviceAddressSpace64 was called.");
return CreateDeviceAddressSpace(out_handle, das_address, das_size);
}
Result AttachDeviceAddressSpace64(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
MESOSPHERE_PANIC("Stubbed SvcAttachDeviceAddressSpace64 was called.");
return AttachDeviceAddressSpace(device_name, das_handle);
}
Result DetachDeviceAddressSpace64(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
MESOSPHERE_PANIC("Stubbed SvcDetachDeviceAddressSpace64 was called.");
return DetachDeviceAddressSpace(device_name, das_handle);
}
Result MapDeviceAddressSpaceByForce64(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
@@ -58,15 +97,15 @@ namespace ams::kern::svc {
/* ============================= 64From32 ABI ============================= */
Result CreateDeviceAddressSpace64From32(ams::svc::Handle *out_handle, uint64_t das_address, uint64_t das_size) {
MESOSPHERE_PANIC("Stubbed SvcCreateDeviceAddressSpace64From32 was called.");
return CreateDeviceAddressSpace(out_handle, das_address, das_size);
}
Result AttachDeviceAddressSpace64From32(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
MESOSPHERE_PANIC("Stubbed SvcAttachDeviceAddressSpace64From32 was called.");
return AttachDeviceAddressSpace(device_name, das_handle);
}
Result DetachDeviceAddressSpace64From32(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
MESOSPHERE_PANIC("Stubbed SvcDetachDeviceAddressSpace64From32 was called.");
return DetachDeviceAddressSpace(device_name, das_handle);
}
Result MapDeviceAddressSpaceByForce64From32(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {