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From: Paolo Bonzini <pbonzini@redhat.com>
To: Sean Christopherson <sean.j.christopherson@intel.com>,
	Andrea Arcangeli <aarcange@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: Re: [PATCH 01/14] KVM: monolithic: x86: remove kvm.ko
Date: Tue, 15 Oct 2019 10:32:13 +0200	[thread overview]
Message-ID: <259674b0-85e3-5266-4eaa-6314e8156f77@redhat.com> (raw)
In-Reply-To: <20191015031828.GE24895@linux.intel.com>

On 15/10/19 05:18, Sean Christopherson wrote:
>> The KVM config option should be changed to a bool and its help text
>> updated.  Maybe something similar to the help for VIRTUALIZATION to make
>> it clear that enabling KVM on its own does nothing.
> Making KVM a bool doesn't work well, keeping it a tristate and keying off
> KVM=y to force Intel or AMD (as done in the next patch) looks like the
> cleanest implementation.

Indeed, keeping the KVM option as tristate helps showing the right
suboptions, similar to what Andrea did in patch 2.  However, this patch
already breaks the CONFIG_KVM_INTEL=y && CONFIG_KVM_AMD=y case I think,
so it should be squashed with "KVM: monolithic: x86: disable linking vmx
and svm at the same time into the kernel".

> The help text should still be updated though.

The patch doesn't change the fact that enabling KVM on its own does
nothing, so the help text can be updated independently (patch welcome :)).

Thanks,

Paolo


  reply	other threads:[~2019-10-15  8:32 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-28 17:23 [PATCH 00/14] KVM monolithic v2 Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 01/14] KVM: monolithic: x86: remove kvm.ko Andrea Arcangeli
2019-10-15  1:31   ` Sean Christopherson
2019-10-15  3:18     ` Sean Christopherson
2019-10-15  8:32       ` Paolo Bonzini [this message]
2019-09-28 17:23 ` [PATCH 02/14] KVM: monolithic: x86: disable linking vmx and svm at the same time into the kernel Andrea Arcangeli
2019-10-15  3:16   ` Sean Christopherson
2019-10-15  8:21     ` Paolo Bonzini
2019-10-15 15:23       ` Sean Christopherson
2019-09-28 17:23 ` [PATCH 04/14] KVM: monolithic: x86: handle the request_immediate_exit variation Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 05/14] KVM: monolithic: add more section prefixes in the KVM common code Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 06/14] KVM: monolithic: x86: remove __exit section prefix from machine_unsetup Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 07/14] KVM: monolithic: x86: remove __init section prefix from kvm_x86_cpu_has_kvm_support Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 08/14] KVM: monolithic: x86: remove exports Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 09/14] KVM: monolithic: remove exports from KVM common code Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 10/14] KVM: monolithic: x86: drop the kvm_pmu_ops structure Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 11/14] KVM: x86: optimize more exit handlers in vmx.c Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 12/14] KVM: retpolines: x86: eliminate retpoline from vmx.c exit handlers Andrea Arcangeli
2019-10-15  8:28   ` Paolo Bonzini
2019-10-15 16:49     ` Andrea Arcangeli
2019-10-15 19:46       ` Paolo Bonzini
2019-10-15 20:35         ` Andrea Arcangeli
2019-10-15 22:22           ` Paolo Bonzini
2019-10-15 23:42             ` Andrea Arcangeli
2019-10-16  7:07               ` Paolo Bonzini
2019-10-16 16:50                 ` Andrea Arcangeli
2019-10-16 17:01                   ` Paolo Bonzini
2019-09-28 17:23 ` [PATCH 13/14] KVM: retpolines: x86: eliminate retpoline from svm.c " Andrea Arcangeli
2019-09-28 17:23 ` [PATCH 14/14] x86: retpolines: eliminate retpoline from msr event handlers Andrea Arcangeli

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