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From: Paolo Bonzini <pbonzini@redhat.com>
To: Vitaly Kuznetsov <vkuznets@redhat.com>, qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>,
	Eduardo Habkost <ehabkost@redhat.com>,
	"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [PATCH 0/2] i386: Fix interrupt based Async PF enablement
Date: Thu, 8 Apr 2021 14:46:08 +0200	[thread overview]
Message-ID: <091dec53-cc0c-04ca-154a-3cfab6475705@redhat.com> (raw)
In-Reply-To: <87sg43d4gk.fsf@vitty.brq.redhat.com>

On 06/04/21 13:42, Vitaly Kuznetsov wrote:
> older machine types are still available (I disable it for <= 5.1 but we
> can consider disabling it for 5.2 too). The feature is upstream since
> Linux 5.8, I know that QEMU supports much older kernels but this doesn't
> probably mean that we can't enable new KVM PV features unless all
> supported kernels have it, we'd have to wait many years otherwise.

Yes, this is a known problem in fact. :(  In 6.0 we even support RHEL 7, 
though that will go away in 6.1.

We should take the occasion of dropping RHEL7 to be clearer about which 
kernels are supported.

Paolo



  reply	other threads:[~2021-04-08 12:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01 15:19 [PATCH 0/2] i386: Fix interrupt based Async PF enablement Vitaly Kuznetsov
2021-04-01 15:19 ` [PATCH 1/2] i386: Add 'kvm-asyncpf-int' to kvm_default_props array Vitaly Kuznetsov
2021-04-01 15:19 ` [PATCH 2/2] i386: Disable 'kvm-asyncpf-int' feature for machine types <= 5.1 Vitaly Kuznetsov
2021-04-01 15:57 ` [PATCH 0/2] i386: Fix interrupt based Async PF enablement Paolo Bonzini
2021-04-06 11:42   ` Vitaly Kuznetsov
2021-04-08 12:46     ` Paolo Bonzini [this message]
2021-04-15 19:14       ` Dr. David Alan Gilbert
2021-04-20 17:35         ` Eduardo Habkost
2021-04-21  8:38           ` Vitaly Kuznetsov
2021-04-21  8:50             ` Daniel P. Berrangé
2021-04-21  9:23               ` Dr. David Alan Gilbert
2021-04-21  9:29               ` Vitaly Kuznetsov
2021-04-21  9:34                 ` Dr. David Alan Gilbert
2021-04-21  9:37                 ` Daniel P. Berrangé
2021-04-21  9:48                   ` Vitaly Kuznetsov

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