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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b9a348cb12
Enabling boot from HYP mode requires the use of some more
virt-specific instructions ("eret" and "msr elr_hyp, reg").
Add the necessary encoding to asm/opcode-virt.h.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/*
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* opcodes-virt.h: Opcode definitions for the ARM virtualization extensions
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* Copyright (C) 2012 Linaro Limited
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ASM_ARM_OPCODES_VIRT_H
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#define __ASM_ARM_OPCODES_VIRT_H
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#include <asm/opcodes.h>
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#define __HVC(imm16) __inst_arm_thumb32( \
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0xE1400070 | (((imm16) & 0xFFF0) << 4) | ((imm16) & 0x000F), \
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0xF7E08000 | (((imm16) & 0xF000) << 4) | ((imm16) & 0x0FFF) \
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)
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#define __ERET __inst_arm_thumb32( \
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0xE160006E, \
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0xF3DE8F00 \
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)
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#define __MSR_ELR_HYP(regnum) __inst_arm_thumb32( \
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0xE12EF300 | regnum, \
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0xF3808E30 | (regnum << 16) \
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)
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#endif /* ! __ASM_ARM_OPCODES_VIRT_H */
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