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svc/kern/dd: remove MapDeviceAddressSpace()

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Michael Scire 2021-09-18 11:28:39 -07:00 • committed by SciresM
parent 481ce12b7b
commit ce7dd55257
15 changed files with 53 additions and 238 deletions
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16
libraries/libmesosphere/source/kern_k_device_address_space.cpp
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@ -64,7 +64,7 @@ namespace ams::kern {
return m_table.Detach(device_name);
}
Result KDeviceAddressSpace::Map(size_t *out_mapped_size, KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm, bool is_aligned, bool refresh_mappings) {
Result KDeviceAddressSpace::Map(KProcessPageTable *page_table, KProcessAddress process_address, size_t size, u64 device_address, ams::svc::MemoryPermission device_perm, bool is_aligned) {
/* Check that the address falls within the space. */
R_UNLESS((m_space_address <= device_address && device_address + size - 1 <= m_space_address + m_space_size - 1), svc::ResultInvalidCurrentMemory());
@ -82,22 +82,18 @@ namespace ams::kern {
/* Map the pages. */
{
/* Clear the output size to zero on failure. */
auto mapped_size_guard = SCOPE_GUARD { *out_mapped_size = 0; };
/* Perform the mapping. */
R_TRY(m_table.Map(out_mapped_size, page_table, process_address, size, device_address, device_perm, is_aligned, refresh_mappings));
R_TRY(m_table.Map(page_table, process_address, size, device_address, device_perm, is_aligned));
/* Ensure that we unmap the pages if we fail to update the protections. */
/* NOTE: Nintendo does not check the result of this unmap call. */
auto map_guard = SCOPE_GUARD { m_table.Unmap(device_address, *out_mapped_size); };
auto map_guard = SCOPE_GUARD { m_table.Unmap(device_address, size); };
/* Update the protections in accordance with how much we mapped. */
R_TRY(page_table->UnlockForDeviceAddressSpacePartialMap(process_address, size, *out_mapped_size));
R_TRY(page_table->UnlockForDeviceAddressSpacePartialMap(process_address, size));
/* We succeeded, so cancel our guards. */
/* We succeeded, so cancel our guard. */
map_guard.Cancel();
mapped_size_guard.Cancel();
}
/* We succeeded, so we don't need to unlock our pages. */
@ -120,7 +116,7 @@ namespace ams::kern {
/* If we fail to unmap, we want to do a partial unlock. */
{
auto unlock_guard = SCOPE_GUARD { MESOSPHERE_R_ABORT_UNLESS(page_table->UnlockForDeviceAddressSpacePartialMap(process_address, size, size)); };
auto unlock_guard = SCOPE_GUARD { MESOSPHERE_R_ABORT_UNLESS(page_table->UnlockForDeviceAddressSpacePartialMap(process_address, size)); };
/* Unmap. */
R_TRY(m_table.Unmap(page_table, process_address, size, device_address));