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From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Subject: Re: [PATCH 0/2] i386: Fix Hyper-V Gen1 guests stuck on boot with 'hv-passthrough'
Date: Tue, 27 Jun 2023 10:31:45 +0200	[thread overview]
Message-ID: <875y79paq6.fsf@redhat.com> (raw)
In-Reply-To: <20230612084201.294248-1-vkuznets@redhat.com>

Vitaly Kuznetsov <vkuznets@redhat.com> writes:

> Hyper-V Gen1 guests are getting stuck on boot when 'hv-passthrough' is
> used. While 'hv-passthrough' is a debug only feature, this significantly
> limit its usefullness. While debugging the problem, I found that there are
> two loosely connected issues:
> - 'hv-passthrough' enables 'hv-syndbg' and this is undesired.
> - 'hv-syndbg's support by KVM is detected incorrectly when !CONFIG_SYNDBG.
>
> Fix both issues; exclude 'hv-syndbg' from 'hv-passthrough' and don't allow
> to turn on 'hv-syndbg' for !CONFIG_SYNDBG builds. 
>
> Vitaly Kuznetsov (2):
>   i386: Fix conditional CONFIG_SYNDBG enablement
>   i386: Exclude 'hv-syndbg' from 'hv-passthrough'
>
>  docs/system/i386/hyperv.rst | 13 +++++++++----
>  target/i386/cpu.c           |  2 ++
>  target/i386/kvm/kvm.c       | 18 ++++++++++++------
>  3 files changed, 23 insertions(+), 10 deletions(-)

Ping)

-- 
Vitaly



  parent reply	other threads:[~2023-06-27  8:32 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-12  8:41 [PATCH 0/2] i386: Fix Hyper-V Gen1 guests stuck on boot with 'hv-passthrough' Vitaly Kuznetsov
2023-06-12  8:42 ` [PATCH 1/2] i386: Fix conditional CONFIG_SYNDBG enablement Vitaly Kuznetsov
2023-06-12  8:42 ` [PATCH 2/2] i386: Exclude 'hv-syndbg' from 'hv-passthrough' Vitaly Kuznetsov
2023-06-27  8:31 ` Vitaly Kuznetsov [this message]
2023-07-28 12:28   ` [PATCH 0/2] i386: Fix Hyper-V Gen1 guests stuck on boot with 'hv-passthrough' Vitaly Kuznetsov
2023-09-22 12:08     ` Vitaly Kuznetsov

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