From: Paolo Bonzini <pbonzini@redhat.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>,
natet@google.com
Cc: Ashish.Kalra@amd.com, brijesh.singh@amd.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, rientjes@google.com,
seanjc@google.com, srutherford@google.com,
thomas.lendacky@amd.com, x86@kernel.org,
Tobin Feldman-Fitzthum <tobin@ibm.com>,
DOV MURIK <Dov.Murik1@il.ibm.com>
Subject: Re: [RFC] KVM: x86: Support KVM VMs sharing SEV context
Date: Thu, 25 Feb 2021 21:36:58 +0100 [thread overview]
Message-ID: <0b194254-1774-e54f-b801-c2d0c0ead07c@redhat.com> (raw)
In-Reply-To: <7cb132ce522728f7689618832a65e31e37788201.camel@HansenPartnership.com>
On 25/02/21 18:53, James Bottomley wrote:
>
> https://lore.kernel.org/qemu-devel/8b824c44-6a51-c3a7-6596-921dc47fea39@linux.ibm.com/
>
> It sounds like this mechanism can be used to boot a vCPU through a
> mirror VM after the fact, which is very compatible with the above whose
> mechanism is simply to steal a VCPU to hold in reset until it's
> activated.
Yes, and it's much cleaner because, for example, the extra vCPU need not
participate in the ACPI hotplug stuff and can even use a simplified run
loop.
Paolo
next prev parent reply other threads:[~2021-02-25 20:39 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-24 8:59 [RFC] KVM: x86: Support KVM VMs sharing SEV context Nathan Tempelman
2021-02-24 9:18 ` Paolo Bonzini
2021-02-24 16:58 ` Sean Christopherson
2021-02-25 11:26 ` Paolo Bonzini
2021-02-24 17:37 ` Sean Christopherson
2021-02-25 3:55 ` Steve Rutherford
2021-03-12 23:47 ` Nathan Tempelman
2021-03-16 17:52 ` Sean Christopherson
2021-03-16 17:58 ` Paolo Bonzini
2021-03-16 18:08 ` Sean Christopherson
2021-02-25 3:44 ` Steve Rutherford
2021-02-25 14:57 ` Tom Lendacky
2021-02-25 18:49 ` Steve Rutherford
2021-03-05 22:36 ` Ashish Kalra
2021-03-09 17:45 ` Sean Christopherson
2021-02-25 17:53 ` James Bottomley
2021-02-25 18:18 ` Ashish Kalra
2021-02-25 20:33 ` Paolo Bonzini
2021-02-26 13:30 ` Ashish Kalra
2021-02-25 20:36 ` Paolo Bonzini [this message]
2021-03-05 14:04 ` Ashish Kalra
2021-03-05 15:13 ` Paolo Bonzini
2021-03-05 20:43 ` Nathan Tempelman
2021-03-11 15:30 ` Tobin Feldman-Fitzthum
2021-03-11 16:29 ` Paolo Bonzini
2021-03-15 17:05 ` Tobin Feldman-Fitzthum
2021-03-15 17:29 ` Paolo Bonzini
2021-05-24 21:29 ` Kalra, Ashish
2021-05-27 15:51 ` Kalra, Ashish
2021-06-01 8:26 ` Kalra, Ashish
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