From: "Radim Krčmář" <rkrcmar@redhat.com>
To: David Rientjes <rientjes@google.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>,
Joerg Roedel <joro@8bytes.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Thomas Lendacky <Thomas.Lendacky@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [patch] kvm: sev: Fail KVM_SEV_INIT if already initialized
Date: Fri, 11 Jan 2019 14:50:26 +0100 [thread overview]
Message-ID: <20190111135025.GF14852@flask> (raw)
In-Reply-To: <alpine.DEB.2.21.1901021255410.62182@chino.kir.corp.google.com>
2019-01-02 12:56-0800, David Rientjes:
> By code inspection, it was found that multiple calls to KVM_SEV_INIT
> could deplete asid bits and overwrite kvm_sev_info's regions_list.
>
> Multiple calls to KVM_SVM_INIT is not likely to occur with QEMU, but this
> should likely be fixed anyway.
>
> This code is serialized by kvm->lock.
>
> Fixes: 1654efcbc431 ("KVM: SVM: Add KVM_SEV_INIT command")
> Reported-by: Cfir Cohen <cfir@google.com>
> Signed-off-by: David Rientjes <rientjes@google.com>
> ---
Applied, thanks.
prev parent reply other threads:[~2019-01-11 13:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-02 20:56 [patch] kvm: sev: Fail KVM_SEV_INIT if already initialized David Rientjes
2019-01-02 21:44 ` Singh, Brijesh
2019-01-11 13:50 ` Radim Krčmář [this message]
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