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Re: [PATCH] x86/traps: Fix typo in do_entry_CP()
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 29 Sep 2021 10:07:43 +0200
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Bobby Eshleman <bobby.eshleman@xxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 29 Sep 2021 08:07:53 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 28.09.2021 23:00, Andrew Cooper wrote:
> The call to debugger_trap_entry() should pass the correct vector. The
> break-for-gdbsx logic is in practice unreachable because PV guests can't
> generate #CP, but it will interfere with anyone inserting custom debugging
> into debugger_trap_entry().
>
> Fixes: 5ad05b9c2490 ("x86/traps: Implement #CP handler and extend #PF for
> shadow stacks")
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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