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kern: finish SvcGetInfo

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This commit is contained in:
Michael Scire 2020-07-24 05:44:52 -07:00 • committed by SciresM
parent fd9b986938
commit 695b82b945
4 changed files with 66 additions and 4 deletions
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48
libraries/libmesosphere/source/svc/kern_svc_info.cpp
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@ -153,6 +153,19 @@ namespace ams::kern::svc {
}
}
break;
case ams::svc::InfoType_IdleTickCount:
{
/* Verify the input handle is invalid. */
R_UNLESS(handle == ams::svc::InvalidHandle, svc::ResultInvalidHandle());
/* Verify the requested core is valid. */
const bool core_valid = (info_subtype == static_cast<u64>(-1ul)) || (info_subtype == static_cast<u64>(GetCurrentCoreId()));
R_UNLESS(core_valid, svc::ResultInvalidCombination());
/* Get the idle tick count. */
*out = Kernel::GetScheduler().GetIdleThread()->GetCpuTime();
}
break;
case ams::svc::InfoType_RandomEntropy:
{
/* Verify the input handle is invalid. */
@ -165,11 +178,42 @@ namespace ams::kern::svc {
*out = GetCurrentProcess().GetRandomEntropy(info_subtype);
}
break;
case ams::svc::InfoType_ThreadTickCount:
{
/* Verify the requested core is valid. */
const bool core_valid = (info_subtype == static_cast<u64>(-1ul)) || (info_subtype < cpu::NumCores);
R_UNLESS(core_valid, svc::ResultInvalidCombination());
/* Get the thread from its handle. */
KScopedAutoObject thread = GetCurrentProcess().GetHandleTable().GetObject<KThread>(handle);
R_UNLESS(thread.IsNotNull(), svc::ResultInvalidHandle());
/* Get the tick count. */
s64 tick_count;
if (info_subtype == static_cast<u64>(-1ul)) {
tick_count = thread->GetCpuTime();
if (GetCurrentThreadPointer() == thread.GetPointerUnsafe()) {
const s64 cur_tick = KHardwareTimer::GetTick();
const s64 prev_switch = Kernel::GetScheduler().GetLastContextSwitchTime();
tick_count += (cur_tick - prev_switch);
}
} else {
tick_count = thread->GetCpuTime(static_cast<s32>(info_subtype));
if (GetCurrentThreadPointer() == thread.GetPointerUnsafe() && static_cast<s32>(info_subtype) == GetCurrentCoreId()) {
const s64 cur_tick = KHardwareTimer::GetTick();
const s64 prev_switch = Kernel::GetScheduler().GetLastContextSwitchTime();
tick_count += (cur_tick - prev_switch);
}
}
/* Set the output. */
*out = tick_count;
}
break;
default:
{
/* For debug, until all infos are implemented. */
/* For debug, log the invalid info call. */
MESOSPHERE_LOG("GetInfo(%p, %u, %08x, %lu) was called\n", out, static_cast<u32>(info_type), static_cast<u32>(handle), info_subtype);
MESOSPHERE_UNIMPLEMENTED();
}
return svc::ResultInvalidEnumValue();
}