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54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
#pragma once
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#include <string>
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#include <fnd/types.h>
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#include <nx/KernelCapability.h>
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namespace nx
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{
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class SystemCallEntry
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{
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public:
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SystemCallEntry();
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SystemCallEntry(const KernelCapability& kernel_cap);
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SystemCallEntry(uint32_t upper_bits, uint32_t lower_bits);
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// kernel capability
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const KernelCapability& getKernelCapability() const;
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void setKernelCapability(const KernelCapability& kernel_cap);
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// variables
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uint32_t getSystemCallUpperBits() const;
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void setSystemCallUpperBits(uint32_t upper_bits);
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uint32_t getSystemCallLowerBits() const;
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void setSystemCallLowerBits(uint32_t lower_bits);
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private:
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const std::string kModuleName = "SYSTEM_CALL_ENTRY";
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static const KernelCapability::KernelCapId kCapId = KernelCapability::KC_ENABLE_SYSTEM_CALLS;
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static const uint32_t kSysCallUpperBits = 3;
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static const uint32_t kSysCallLowerBits = 24;
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static const uint32_t kSysCallUpperMax = BIT(kSysCallUpperBits) - 1;
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static const uint32_t kSysCallLowerMax = BIT(kSysCallLowerBits) - 1;
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KernelCapability mCap;
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uint32_t mSystemCallUpper;
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uint32_t mSystemCallLower;
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inline void updateCapField()
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{
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uint32_t field = 0;
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field |= (uint32_t)(mSystemCallLower & kSysCallLowerMax) << 0;
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field |= (uint32_t)(mSystemCallUpper & kSysCallUpperMax) << kSysCallLowerBits;
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mCap.setField(field);
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}
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inline void processCapField()
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{
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uint32_t field = mCap.getField();
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mSystemCallLower = (field >> 0) & kSysCallLowerMax;
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mSystemCallUpper = (field >> kSysCallLowerBits) & kSysCallUpperMax;
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}
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};
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}
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