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From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	"K. Y. Srinivasan" <kys@microsoft.com>,
	x86@kernel.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org,
	Maxim Levitsky <mlevitsk@redhat.com>,
	Vineeth Pillai <viremana@linux.microsoft.com>,
	Lan Tianyu <Tianyu.Lan@microsoft.com>,
	Michael Kelley <mikelley@microsoft.com>,
	Sean Christopherson <seanjc@google.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	Wei Liu <wei.liu@kernel.org>,
	Stephen Hemminger <sthemmin@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>
Subject: Re: [PATCH v5 0/7] Hyper-V nested virt enlightenments for SVM
Date: Mon, 14 Jun 2021 09:47:59 +0200	[thread overview]
Message-ID: <87wnqwx4y8.fsf@vitty.brq.redhat.com> (raw)
In-Reply-To: <50dea657-ef03-4bde-b9c7-75d9e18157ea@redhat.com>

Paolo Bonzini <pbonzini@redhat.com> writes:

> CONFIG_HYPERV=m is possible.

We've stubmled upon this multiple times already. Initially, the whole
Hyper-V support code was a module (what's now in drivers/hv/) but then
some core functionallity was moved out to arch/x86/ but we didn't add a
new config back then. Still suffering :-)

Ideally, we would want to have 

CONFIG_HYPERV_GUEST=y/n for what's in arch/x86/ (just like CONFIG_KVM_GUEST)
CONFIG_HYPERV_VMBUS=y/n/m for what's in drivers/hv

-- 
Vitaly


      reply	other threads:[~2021-06-14  7:48 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-03 15:14 [PATCH v5 0/7] Hyper-V nested virt enlightenments for SVM Vineeth Pillai
2021-06-03 15:14 ` [PATCH v5 1/7] hyperv: Detect Nested virtualization support " Vineeth Pillai
2021-06-08 16:59   ` Michael Kelley
2021-06-03 15:14 ` [PATCH v5 2/7] hyperv: SVM enlightened TLB flush support flag Vineeth Pillai
2021-06-08 17:04   ` Michael Kelley
2021-06-03 15:14 ` [PATCH v5 3/7] KVM: x86: hyper-v: Move the remote TLB flush logic out of vmx Vineeth Pillai
2021-06-10 11:20   ` Vitaly Kuznetsov
2021-06-10 15:11     ` Paolo Bonzini
2021-06-11  7:20       ` Vitaly Kuznetsov
2021-06-03 15:14 ` [PATCH v5 4/7] KVM: SVM: Software reserved fields Vineeth Pillai
2025-09-11 22:35   ` Yosry Ahmed
2025-09-12 13:09     ` Tom Lendacky
2021-06-03 15:14 ` [PATCH v5 5/7] KVM: SVM: hyper-v: Remote TLB flush for SVM Vineeth Pillai
2021-06-08 17:33   ` Michael Kelley
2021-06-03 15:14 ` [PATCH v5 6/7] KVM: SVM: hyper-v: Enlightened MSR-Bitmap support Vineeth Pillai
2021-06-03 15:14 ` [PATCH v5 7/7] KVM: SVM: hyper-v: Direct Virtual Flush support Vineeth Pillai
2021-06-10 11:16   ` Vitaly Kuznetsov
2021-06-10 15:16     ` Paolo Bonzini
2021-06-14 11:34   ` Vitaly Kuznetsov
2021-06-15 14:24     ` Vineeth Pillai
2021-06-10 15:17 ` [PATCH v5 0/7] Hyper-V nested virt enlightenments for SVM Paolo Bonzini
2021-06-11  9:26   ` Maxim Levitsky
2021-06-11  9:44     ` Vitaly Kuznetsov
2021-06-11 16:50       ` Paolo Bonzini
2021-06-14  7:47         ` Vitaly Kuznetsov [this message]

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