54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
#pragma once
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#include <mesosphere/core/util.hpp>
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#include <mesosphere/arch/arm64/arm64.hpp>
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namespace mesosphere
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{
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inline namespace arch
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{
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inline namespace arm64
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{
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// Dummy. Should be platform-independent:
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class KInterruptMaskGuard final {
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public:
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using FlagsType = u64;
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KInterruptMaskGuard()
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{
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flags = MaskInterrupts();
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}
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~KInterruptMaskGuard()
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{
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RestoreInterrupts(flags);
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}
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static FlagsType MaskInterrupts()
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{
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FlagsType flags = MESOSPHERE_READ_SYSREG(daif);
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MESOSPHERE_WRITE_SYSREG(flags | PSR_I_BIT, daif);
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return flags;
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}
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static void RestoreInterrupts(FlagsType flags)
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{
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MESOSPHERE_WRITE_SYSREG(MESOSPHERE_READ_SYSREG(daif) | (flags & PSR_I_BIT), daif);
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}
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KInterruptMaskGuard(const KInterruptMaskGuard &) = delete;
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KInterruptMaskGuard(KInterruptMaskGuard &&) = delete;
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KInterruptMaskGuard &operator=(const KInterruptMaskGuard &) = delete;
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KInterruptMaskGuard &operator=(KInterruptMaskGuard &&) = delete;
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private:
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FlagsType flags = 0;
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};
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}
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}
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}
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