From: Paolo Bonzini <pbonzini@redhat.com>
To: Vitaly Kuznetsov <vkuznets@redhat.com>,
Tom Lendacky <thomas.lendacky@amd.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Brijesh Singh <brijesh.singh@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
kvm@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] KVM: SVM: Add a dedicated INVD intercept routine
Date: Thu, 24 Sep 2020 16:06:31 +0200 [thread overview]
Message-ID: <26425c1b-a56d-bb52-109a-ab92eeb2c084@redhat.com> (raw)
In-Reply-To: <87zh5fcm4f.fsf@vitty.brq.redhat.com>
On 24/09/20 15:58, Vitaly Kuznetsov wrote:
> does it sill make sense to intercept INVD when we just skip it? Would it
> rather make sense to disable INVD intercept for SEV guests completely?
If we don't intercept the processor would really invalidate the cache,
that is certainly not what we want.
Paolo
prev parent reply other threads:[~2020-09-24 14:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-23 20:27 [PATCH] KVM: SVM: Add a dedicated INVD intercept routine Tom Lendacky
2020-09-23 20:32 ` Sean Christopherson
2020-09-23 20:40 ` Tom Lendacky
2020-09-24 6:51 ` Paolo Bonzini
2020-09-24 13:33 ` Tom Lendacky
2020-09-24 13:58 ` Vitaly Kuznetsov
2020-09-24 14:06 ` Paolo Bonzini [this message]
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