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authorLIU Zhiwei <zhiwei_liu@linux.alibaba.com>2022-10-13 14:29:43 +0800
committerAlistair Francis <alistair.francis@wdc.com>2023-01-06 10:42:55 +1000
commit2c9d747121aa9f8f0494b9e3136a22a1c3a8b2a3 (patch)
tree8cc47a138ce0357f917299a47c199dddeb2036e8 /po
parentfb3f3730e405e2451dffc03c572037c2e0bd44c0 (diff)
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target/riscv: Add itrigger support when icount is not enabled
When icount is not enabled, there is no API in QEMU that can get the guest instruction number. Translate the guest code in a way that each TB only has one instruction. After executing the instruction, decrease the count by 1 until it reaches 0 where the itrigger fires. Note that only when priviledge matches the itrigger configuration, the count will decrease. Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221013062946.7530-2-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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