Re: [PATCH v2 4/5] KVM: selftests: Add exception handling support for aarch64

[Zenghui Yu <yuzenghui@xxxxxxxxxx>]

Hi Eric,

On 2021/5/6 20:30, Auger Eric wrote:
> running the test on 5.12 I get
>
> ==== Test Assertion Failure ====
>   aarch64/debug-exceptions.c:232: false
>   pid=6477 tid=6477 errno=4 - Interrupted system call
>      1	0x000000000040147b: main at debug-exceptions.c:230
>      2	0x000003ff8aa60de3: ?? ??:0
>      3	0x0000000000401517: _start at :?
>   Failed guest assert: hw_bp_addr == PC(hw_bp) at
> aarch64/debug-exceptions.c:105
> 	values: 0, 0x401794

FYI I can also reproduce it on my VHE box. And Drew's suggestion [*]
seemed to work for me. Is the ISB a requirement of architecture?

[*] https://lore.kernel.org/kvm/20210503124925.wxdcyzharpyzeu4v@xxxxxxxxxx/


Thanks,
Zenghui