mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-15 17:39:28 +00:00
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* Copyright (c) 2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "traps.h"
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#include "sysreg.h"
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#include "synchronization.h"
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static void enableDebugTraps(void)
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{
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u64 mdcr = GET_SYSREG(mdcr_el2);
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// Trap Debug Exceptions, and accesses to debug registers.
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mdcr |= MDCR_EL2_TDE;
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// Implied from TDE
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mdcr |= MDCR_EL2_TDRA | MDCR_EL2_TDOSA | MDCR_EL2_TDA;
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SET_SYSREG(mdcr_el2, mdcr);
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}
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void enableTraps(void)
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{
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u64 hcr = GET_SYSREG(hcr_el2);
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// Trap *writes* to memory control registers
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//hcr |= HCR_TVM;
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// actually don't
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// Trap SMC instructions
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hcr |= HCR_TSC;
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// Reroute physical IRQ to EL2
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hcr |= HCR_IMO;
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// TODO debug exceptions
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SET_SYSREG(hcr_el2, hcr);
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enableDebugTraps();
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}
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