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kern: add InfoType_IsSvcPermitted

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This commit is contained in:
Michael Scire
2022-03-22 14:29:02 -07:00
parent 262a066c8c
commit 29a53bc572
7 changed files with 73 additions and 0 deletions
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4
libraries/libmesosphere/include/mesosphere/kern_k_capabilities.hpp
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@@ -306,6 +306,10 @@ namespace ams::kern {
}
}
constexpr bool IsPermittedSvc(svc::SvcId id) const {
return (id < m_svc_access_flags.GetCount()) && m_svc_access_flags[id];
}
constexpr bool IsPermittedInterrupt(u32 id) const {
return (id < m_irq_access_flags.GetCount()) && m_irq_access_flags[id];
}

4
libraries/libmesosphere/include/mesosphere/kern_k_process.hpp
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@@ -194,6 +194,10 @@ namespace ams::kern {
return m_attached_object != nullptr;
}
constexpr bool IsPermittedSvc(svc::SvcId svc_id) const {
return m_capabilities.IsPermittedSvc(svc_id);
}
constexpr bool IsPermittedInterrupt(int32_t interrupt_id) const {
return m_capabilities.IsPermittedInterrupt(interrupt_id);
}

12
libraries/libmesosphere/source/svc/kern_svc_info.cpp
View File

@@ -285,6 +285,18 @@ namespace ams::kern::svc {
*out = tick_count;
}
break;
case ams::svc::InfoType_IsSvcPermitted:
{
/* Verify the input handle is invalid. */
R_UNLESS(handle == ams::svc::InvalidHandle, svc::ResultInvalidHandle());
/* Verify the sub-type is valid. */
R_UNLESS(info_subtype == svc::SvcId_SynchronizePreemptionState, svc::ResultInvalidCombination());
/* Get whether the svc is permitted. */
*out = GetCurrentProcess().IsPermittedSvc(static_cast<svc::SvcId>(info_subtype));
}
break;
case ams::svc::InfoType_MesosphereMeta:
{
/* Verify the handle is invalid. */