From: Marc Zyngier <maz@kernel.org>
To: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Cc: <kvmarm@lists.linux.dev>, <oliver.upton@linux.dev>,
<catalin.marinas@arm.com>, <will@kernel.org>,
<mark.rutland@arm.com>, <cohuck@redhat.com>,
<eric.auger@redhat.com>, <sebott@redhat.com>,
<yuzenghui@huawei.com>, <wangzhou1@hisilicon.com>,
<jiangkunkun@huawei.com>, <jonathan.cameron@huawei.com>,
<anthony.jebson@huawei.com>,
<linux-arm-kernel@lists.infradead.org>, <linuxarm@huawei.com>
Subject: Re: [PATCH v4 0/3] KVM: arm64: Errata management for VM Live migration
Date: Thu, 19 Dec 2024 10:07:39 +0000 [thread overview]
Message-ID: <86a5csq93o.wl-maz@kernel.org> (raw)
In-Reply-To: <20241218105345.73472-1-shameerali.kolothum.thodi@huawei.com>
Hi Shameer,
On Wed, 18 Dec 2024 10:53:42 +0000,
Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> wrote:
>
> Hi,
>
> v3 --> v4(Minor updates)
> https://lore.kernel.org/kvmarm/20241209115311.40496-1-shameerali.kolothum.thodi@huawei.com/
>
> -Changed MIDR/REVIDR to 64 bits based on feedback from Connie
> and Marc(Patch #3).
> -Added R-by tags from Sebastian (Thanks!).
Thanks again for putting this together.
I think it would be really good to have a sample userspace
implementation of this extension so that we can play with it for real
before fully committing to it.
I am also wondering is we should make it mandatory that a guest is
presented with an MIDR_EL1.Implementer value set to 0, which denotes
SW use, and would make it plain to the guest (and crucially, guest
userspace) that we are going to play tricks.
Thoughts?
M.
--
Without deviation from the norm, progress is not possible.
next prev parent reply other threads:[~2024-12-19 10:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-18 10:53 [PATCH v4 0/3] KVM: arm64: Errata management for VM Live migration Shameer Kolothum
2024-12-18 10:53 ` [PATCH v4 1/3] arm64: Modify _midr_range() functions to read MIDR/REVIDR internally Shameer Kolothum
2024-12-19 7:05 ` Cornelia Huck
2024-12-18 10:53 ` [PATCH v4 2/3] KVM: arm64: Introduce hypercall support for retrieving target implementations Shameer Kolothum
2024-12-19 7:07 ` Cornelia Huck
2024-12-19 9:51 ` Marc Zyngier
2024-12-18 10:53 ` [PATCH v4 3/3] arm64: paravirt: Enable errata based on implementation CPUs Shameer Kolothum
2024-12-19 7:09 ` Cornelia Huck
2024-12-19 10:04 ` Marc Zyngier
2024-12-19 17:40 ` Oliver Upton
2024-12-20 11:17 ` Marc Zyngier
2024-12-20 15:00 ` Cornelia Huck
2024-12-19 10:07 ` Marc Zyngier [this message]
2024-12-19 17:36 ` [PATCH v4 0/3] KVM: arm64: Errata management for VM Live migration Oliver Upton
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