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From: Yang Weijiang <weijiang.yang@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Yang Weijiang <weijiang.yang@intel.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	sean.j.christopherson@intel.com, mst@redhat.com,
	rkrcmar@redhat.com, jmattson@google.com, yu.c.zhang@intel.com,
	alazar@bitdefender.com
Subject: Re: [PATCH RESEND v4 5/9] KVM: VMX: Add init/set/get functions for SPP
Date: Tue, 20 Aug 2019 20:36:46 +0800
Message-ID: <20190820123646.GB4828@local-michael-cet-test.sh.intel.com> (raw)
In-Reply-To: <e235b490-0932-3ebf-dee0-f3359216ed9f@redhat.com>

On Mon, Aug 19, 2019 at 05:05:22PM +0200, Paolo Bonzini wrote:
> On 14/08/19 09:03, Yang Weijiang wrote:
> > +
> > +int kvm_mmu_get_subpages(struct kvm *kvm, struct kvm_subpage *spp_info,
> > +			 bool mmu_locked)
> > +{
> > +	u32 *access = spp_info->access_map;
> > +	gfn_t gfn = spp_info->base_gfn;
> > +	int npages = spp_info->npages;
> > +	struct kvm_memory_slot *slot;
> > +	int i;
> > +	int ret;
> > +
> > +	if (!kvm->arch.spp_active)
> > +	      return -ENODEV;
> > +
> > +	if (!mmu_locked)
> > +	      spin_lock(&kvm->mmu_lock);
> > +
> 
> Do not add this argument.  Just lock mmu_lock in the callers.
> 
> Paolo
OK, will remove it, thanks!

  reply index

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-14  7:03 [PATCH RESEND v4 0/9] Enable Sub-page Write Protection Support Yang Weijiang
2019-08-14  7:03 ` [PATCH RESEND v4 1/9] Documentation: Introduce EPT based Subpage Protection Yang Weijiang
2019-08-14  7:03 ` [PATCH RESEND v4 2/9] KVM: VMX: Add control flags for SPP enabling Yang Weijiang
2019-08-14  7:03 ` [PATCH RESEND v4 3/9] KVM: VMX: Implement functions for SPPT paging setup Yang Weijiang
2019-08-14  7:03 ` [PATCH RESEND v4 4/9] KVM: VMX: Introduce SPP access bitmap and operation functions Yang Weijiang
2019-08-14  7:03 ` [PATCH RESEND v4 5/9] KVM: VMX: Add init/set/get functions for SPP Yang Weijiang
2019-08-14 12:43   ` Vitaly Kuznetsov
2019-08-14 14:34     ` Yang Weijiang
2019-08-15 13:43     ` Yang Weijiang
2019-08-15 14:03       ` Vitaly Kuznetsov
2019-08-19 14:06         ` Yang Weijiang
2019-08-15 16:25       ` Jim Mattson
2019-08-15 16:38         ` Sean Christopherson
2019-08-16 13:31           ` Yang Weijiang
2019-08-16 18:19             ` Jim Mattson
2019-08-19  2:08               ` Yang Weijiang
2019-08-19 15:15                 ` Paolo Bonzini
2019-08-20 12:33                   ` Yang Weijiang
2019-08-19 15:05   ` Paolo Bonzini
2019-08-20 12:36     ` Yang Weijiang [this message]
2019-08-19 15:13   ` Paolo Bonzini
2019-08-20 13:09     ` Yang Weijiang
2019-08-14  7:04 ` [PATCH RESEND v4 6/9] KVM: VMX: Introduce SPP user-space IOCTLs Yang Weijiang
2019-08-14  7:04 ` [PATCH RESEND v4 7/9] KVM: VMX: Handle SPP induced vmexit and page fault Yang Weijiang
2019-08-19 14:43   ` Paolo Bonzini
2019-08-19 15:04     ` Paolo Bonzini
2019-08-20 13:44       ` Yang Weijiang
2019-08-22 13:17         ` Yang Weijiang
2019-08-22 16:38           ` Paolo Bonzini
2019-08-23  0:26             ` Yang Weijiang
2019-08-14  7:04 ` [PATCH RESEND v4 8/9] KVM: MMU: Enable Lazy mode SPPT setup Yang Weijiang
2019-08-19 14:46   ` Paolo Bonzini
2019-08-20 13:12     ` Yang Weijiang
2019-09-04 13:49       ` Yang Weijiang
2019-09-09 17:10         ` Paolo Bonzini
2019-09-11  0:23           ` Yang Weijiang
2019-08-14  7:04 ` [PATCH RESEND v4 9/9] KVM: MMU: Handle host memory remapping and reclaim Yang Weijiang
2019-08-14 12:36 ` [PATCH RESEND v4 0/9] Enable Sub-page Write Protection Support Paolo Bonzini
2019-08-14 14:02   ` Yang Weijiang
2019-08-14 14:06     ` Paolo Bonzini

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