From: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
To: "Denis V. Lunev" <den@openvz.org>
Cc: andrey.zhadchenko@virtuozzo.com, khorenko@virtuozzo.com,
svt-core@virtuozzo.com
Subject: Re: [PATCH v2 hci-8.0/hci-8.1 6/6] i386: keep SVM leaf features without svm on vz types up to vz9.2.0 #PSBM-144630
Date: Thu, 29 Oct 2026 13:53:01 +0200 [thread overview]
Message-ID: <179327478157.738267.17043624204385885574.b4-review@b4> (raw)
In-Reply-To: <20261029113436.93521-7-den@openvz.org>
On Thu, 29 Oct 2026 12:34:36 +0100, Denis V. Lunev <den@openvz.org> wrote:
> Since commit 730319aef0f ("i386: Mask SVM features if nested SVM is
> disabled", QEMU 5.1) the features of CPUID leaf 0x8000000a are dropped
> when svm is off. QEMU 2.12 on Vz7 kept them, and a Vz7 host-model
> guest runs with svm=off,npt=on,nrip-save=on. Moving it to a newer QEMU
> fails in libvirt (PSBM-144630):
>
> guest CPU doesn't match specification: missing features: npt,nrip-save
>
> [...]
Acked-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
--
Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
prev parent reply other threads:[~2026-10-29 11:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-29 11:34 [PATCH v2 hci-8.0/hci-8.1 0/6] i386: keep CPU features of guests from older nodes on vz machine types #VSTOR-152264 Denis V. Lunev
2026-10-29 11:34 ` [PATCH v2 hci-8.0/hci-8.1 1/6] i386/pc: raise the limit of compat arrays per Virtuozzo machine type to four #VSTOR-152264 Denis V. Lunev
2026-10-29 11:36 ` no-reply
2026-10-29 11:53 ` Andrey Drobyshev
2026-10-29 11:34 ` [PATCH v2 hci-8.0/hci-8.1 2/6] i386: keep hle and rtm on Virtuozzo machine types up to vz9.2.0 #PSBM-149402 Denis V. Lunev
2026-10-29 11:39 ` no-reply
2026-10-29 11:53 ` Andrey Drobyshev
2026-10-29 11:34 ` [PATCH v2 hci-8.0/hci-8.1 3/6] i386: keep spec-ctrl for AMD guests on vz machine types up to vz9.2.0 #VSTOR-151770 Denis V. Lunev
2026-10-29 11:39 ` no-reply
2026-10-29 11:53 ` Andrey Drobyshev
2026-10-29 11:34 ` [PATCH v2 hci-8.0/hci-8.1 4/6] i386: keep bus-lock-detect for AMD guests on vz machine types up to vz9.2.0 #VSTOR-152291 Denis V. Lunev
2026-10-29 11:39 ` no-reply
2026-10-29 11:53 ` Andrey Drobyshev
2026-10-29 11:34 ` [PATCH v2 hci-8.0/hci-8.1 5/6] i386: keep v-vmsave-vmload for nested AMD guests on vz types up to vz9.2.0 #VSTOR-152264 Denis V. Lunev
2026-10-29 11:39 ` no-reply
2026-10-29 11:53 ` Andrey Drobyshev
2026-10-29 11:34 ` [PATCH v2 hci-8.0/hci-8.1 6/6] i386: keep SVM leaf features without svm on vz types up to vz9.2.0 #PSBM-144630 Denis V. Lunev
2026-10-29 11:41 ` no-reply
2026-10-29 11:53 ` Andrey Drobyshev [this message]
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