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kern: SvcQueryPhysicalAddress

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Michael Scire 2020-07-30 17:26:09 -07:00 • committed by SciresM
parent 9bc2c0c0c5
commit 91fa0d651f
4 changed files with 107 additions and 2 deletions
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28
libraries/libmesosphere/source/svc/kern_svc_address_translation.cpp
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@ -21,6 +21,22 @@ namespace ams::kern::svc {
namespace {
Result QueryPhysicalAddress(ams::svc::PhysicalMemoryInfo *out_info, uintptr_t address) {
/* NOTE: In 10.0.0, Nintendo stubbed this SVC. Should we do so? */
/* R_UNLESS(GetTargetFirmware() < TargetFirmware_10_0_0, svc::ResultInvalidCurrentMemory()); */
/* Get reference to page table. */
auto &pt = GetCurrentProcess().GetPageTable();
/* Check that the address is valid. */
R_UNLESS(pt.Contains(address, 1), svc::ResultInvalidCurrentMemory());
/* Query the physical mapping. */
R_TRY(pt.QueryPhysicalAddress(out_info, address));
return ResultSuccess();
}
Result QueryIoMapping(uintptr_t *out_address, size_t *out_size, uint64_t phys_addr, size_t size) {
/* Declare variables we'll populate. */
KProcessAddress found_address = Null<KProcessAddress>;
@ -105,7 +121,7 @@ namespace ams::kern::svc {
/* ============================= 64 ABI ============================= */
Result QueryPhysicalAddress64(ams::svc::lp64::PhysicalMemoryInfo *out_info, ams::svc::Address address) {
MESOSPHERE_PANIC("Stubbed SvcQueryPhysicalAddress64 was called.");
return QueryPhysicalAddress(out_info, address);
}
Result QueryIoMapping64(ams::svc::Address *out_address, ams::svc::Size *out_size, ams::svc::PhysicalAddress physical_address, ams::svc::Size size) {
@ -122,7 +138,15 @@ namespace ams::kern::svc {
/* ============================= 64From32 ABI ============================= */
Result QueryPhysicalAddress64From32(ams::svc::ilp32::PhysicalMemoryInfo *out_info, ams::svc::Address address) {
MESOSPHERE_PANIC("Stubbed SvcQueryPhysicalAddress64From32 was called.");
ams::svc::PhysicalMemoryInfo info = {};
R_TRY(QueryPhysicalAddress(std::addressof(info), address));
*out_info = {
.physical_address = info.physical_address,
.virtual_address = static_cast<u32>(info.virtual_address),
.size = static_cast<u32>(info.size),
};
return ResultSuccess();
}
Result QueryIoMapping64From32(ams::svc::Address *out_address, ams::svc::Size *out_size, ams::svc::PhysicalAddress physical_address, ams::svc::Size size) {