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kern: SvcChangeKernelTraceState

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Michael Scire 2020-07-31 17:01:01 -07:00 • committed by SciresM
parent 89f1c0ce33
commit f9d68db3f6
10 changed files with 279 additions and 45 deletions
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3
libraries/libmesosphere/include/mesosphere.hpp
View file

@ -27,6 +27,9 @@
#include <mesosphere/kern_initial_process.hpp>
#include <mesosphere/kern_k_exception_context.hpp>
/* Tracing functionality. */
#include <mesosphere/kern_k_trace.hpp>
/* Core pre-initialization includes. */
#include <mesosphere/kern_select_cpu.hpp>
#include <mesosphere/kern_select_system_control.hpp>

2
libraries/libmesosphere/include/mesosphere/kern_common.hpp
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@ -37,4 +37,6 @@ namespace ams::kern {
#define MESOSPHERE_ENABLE_DEBUG_PRINT
#endif
#define MESOSPHERE_BUILD_FOR_TRACING
#include <mesosphere/svc/kern_svc_results.hpp>

14
libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp
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@ -100,8 +100,6 @@ namespace ams::kern {
KMemoryRegionType_DramSystemNonSecurePool = 0xDA6 | KMemoryRegionAttr_NoUserMap | KMemoryRegionAttr_LinearMapped,
KMemoryRegionType_DramSystemPool = 0x13A6 | KMemoryRegionAttr_NoUserMap | KMemoryRegionAttr_LinearMapped | KMemoryRegionAttr_CarveoutProtected,
KMemoryRegionType_DramKernel = 0xE | KMemoryRegionAttr_NoUserMap | KMemoryRegionAttr_CarveoutProtected,
KMemoryRegionType_DramKernelCode = 0xCE | KMemoryRegionAttr_NoUserMap | KMemoryRegionAttr_CarveoutProtected,
KMemoryRegionType_DramKernelSlab = 0x14E | KMemoryRegionAttr_NoUserMap | KMemoryRegionAttr_CarveoutProtected,
@ -526,6 +524,10 @@ namespace ams::kern {
return *GetVirtualMemoryRegionTree().FindFirstRegionByType(KMemoryRegionType_KernelTemp);
}
static NOINLINE KMemoryRegion &GetKernelTraceBufferRegion() {
return *GetVirtualLinearMemoryRegionTree().FindFirstRegionByType(KMemoryRegionType_VirtualKernelTraceBuffer);
}
static NOINLINE KMemoryRegion &GetVirtualLinearRegion(KVirtualAddress address) {
return *GetVirtualLinearMemoryRegionTree().FindContainingRegion(GetInteger(address));
}
@ -730,6 +732,10 @@ namespace ams::kern {
return GetVirtualLinearExtents(GetLinearRegionPhysicalExtents());
}
static NOINLINE auto GetMainMemoryPhysicalExtents() {
return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Dram);
}
static NOINLINE auto GetCarveoutRegionExtents() {
return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionAttr_CarveoutProtected);
}
@ -777,6 +783,10 @@ namespace ams::kern {
static NOINLINE auto GetKernelApplicationPoolRegionPhysicalExtents() {
return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramApplicationPool);
}
static NOINLINE auto GetKernelTraceBufferRegionPhysicalExtents() {
return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelTraceBuffer);
}
};

57
libraries/libmesosphere/include/mesosphere/kern_k_trace.hpp Normal file
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@ -0,0 +1,57 @@
/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/kern_k_spin_lock.hpp>
namespace ams::kern {
#if defined(MESOSPHERE_BUILD_FOR_TRACING)
constexpr inline bool IsKTraceEnabled = true;
#else
constexpr inline bool IsKTraceEnabled = false;
#endif
constexpr inline size_t KTraceBufferSize = IsKTraceEnabled ? 16_MB : 0;
static_assert(IsKTraceEnabled || !IsKTraceEnabled);
class KTrace {
private:
static bool s_is_active;
public:
static void Initialize(KVirtualAddress address, size_t size);
static void Start();
static void Stop();
static ALWAYS_INLINE bool IsActive() { return s_is_active; }
};
}
#define MESOSPHERE_KTRACE_RESUME() \
({ \
if constexpr (::ams::kern::IsKTraceEnabled) { \
::ams::kern::KTrace::Start(); \
} \
})
#define MESOSPHERE_KTRACE_PAUSE() \
({ \
if constexpr (::ams::kern::IsKTraceEnabled) { \
::ams::kern::KTrace::Stop(); \
} \
})