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Re: [Qemu-arm] [PATCH 03/17] target/arm: Add MTE system registers
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-arm] [PATCH 03/17] target/arm: Add MTE system registers |
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Date: |
Sun, 10 Feb 2019 14:47:38 -0800 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 |
On 2/10/19 1:40 PM, Peter Maydell wrote:
>> Actually, we already break the TB here by default.
>
> Do we? I didn't see any code (apart from the handling
> in the DAIFSet/Clear codepaths, which aren't used for TCO).
At the start of the function:
/* End the TB by default, chaining is ok. */
s->base.is_jmp = DISAS_TOO_MANY;
Since the change to TCO is from an immediate, the change to MTE_ACTIVE is also
constant, and so chaining will work.
r~