linux-kernel - [PATCH 2/2] KVM: SEV: Flush cache on non-coherent systems before RECEIVE_UPDATE

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Message-ID: <20210914210951.2994260-3-seanjc@google.com> (raw)
Date:   Wed, 20 Oct 2021 22:58:48 +0000
From:   Ashish Kalra <Ashish.Kalra@....com>
To:     <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
CC:     <brijesh.singh@....com>, <jmattson@...gle.com>, <joro@...tes.org>,
        <kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <marcorr@...gle.com>, <masa.koz@...uka.jp>, <pgonda@...gle.com>,
        <thomas.lendacky@....com>, <vkuznets@...hat.com>,
        <wanpengli@...cent.com>
Subject: [PATCH 2/2] KVM: SEV: Flush cache on non-coherent systems before RECEIVE_UPDATE_DATA

From: Sean Christopherson <seanjc@...gle.com>

Hello Paolo,

I am adding a SEV migration test as part of the KVM SEV selftests.

And while testing SEV migration with this selftest, i observed
cache coherency issues causing migration test failures, so really
need this patch to be added.

Tested-by: Ashish Kalra <ashish.kalra@....com>