mirror of
https://github.com/torvalds/linux.git
synced 2024-11-15 00:21:59 +00:00
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
/*
|
|
* opcodes-virt.h: Opcode definitions for the ARM virtualization extensions
|
|
* Copyright (C) 2012 Linaro Limited
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
#ifndef __ASM_ARM_OPCODES_VIRT_H
|
|
#define __ASM_ARM_OPCODES_VIRT_H
|
|
|
|
#include <asm/opcodes.h>
|
|
|
|
#define __HVC(imm16) __inst_arm_thumb32( \
|
|
0xE1400070 | (((imm16) & 0xFFF0) << 4) | ((imm16) & 0x000F), \
|
|
0xF7E08000 | (((imm16) & 0xF000) << 4) | ((imm16) & 0x0FFF) \
|
|
)
|
|
|
|
#define __ERET __inst_arm_thumb32( \
|
|
0xE160006E, \
|
|
0xF3DE8F00 \
|
|
)
|
|
|
|
#define __MSR_ELR_HYP(regnum) __inst_arm_thumb32( \
|
|
0xE12EF300 | regnum, \
|
|
0xF3808E30 | (regnum << 16) \
|
|
)
|
|
|
|
#endif /* ! __ASM_ARM_OPCODES_VIRT_H */
|