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ARM: opcodes: add __ERET/__MSR_ELR_HYP instruction encoding

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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>
This commit is contained in:
Marc Zyngier 2012-08-09 10:43:29 +01:00
parent 508514ed25
commit b9a348cb12
1 changed files with 10 additions and 0 deletions
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10
arch/arm/include/asm/opcodes-virt.h
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@ -26,4 +26,14 @@
0xF7E08000 | (((imm16) & 0xF000) << 4) | ((imm16) & 0x0FFF) \ 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 */ #endif /* ! __ASM_ARM_OPCODES_VIRT_H */