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Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data
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From: |
Richard Henderson |
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Subject: |
Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data |
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Date: |
Mon, 30 Sep 2019 09:15:48 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 |
On 9/30/19 8:42 AM, David Hildenbrand wrote:
>> Of course, but it's no different with this case than any other. If the
>> interrupt has already been handled, then we will simply restart the next TB
>> as
>> per normal.
> Yeah, I was mostly concerned that "the next TB" will be "the next
> instruction" and not "the original instruction again".
Ah, well, that's easy. The next TB will start from psw.addr, and when we
cpu_loop_exit_restore(), psw.addr will be set to the current instruction.
This is exactly the same as when we raise a PGM_ADDRESSING exception which
needs to be restarted after the kernel swaps in the page.
r~
- [PATCH v3 00/18] target/s390: Use tcg unwinding for ilen, Richard Henderson, 2019/09/26
- [PATCH v3 02/18] target/s390x: Add ilen to unwind data, Richard Henderson, 2019/09/26
- Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data, David Hildenbrand, 2019/09/27
- Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data, Richard Henderson, 2019/09/27
- Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data, David Hildenbrand, 2019/09/30
- Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data, Richard Henderson, 2019/09/30
- Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data, David Hildenbrand, 2019/09/30
- Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data,
Richard Henderson <=
- Re: [PATCH v3 02/18] target/s390x: Add ilen to unwind data, David Hildenbrand, 2019/09/30
[PATCH v3 01/18] target/s390x: Truncate 32-bit psw_addr before creating TB, Richard Henderson, 2019/09/26
[PATCH v3 07/18] target/s390x: Handle tec in s390_cpu_tlb_fill, Richard Henderson, 2019/09/26
[PATCH v3 08/18] target/s390: Return exception from mmu_translate_real, Richard Henderson, 2019/09/26