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From: Paolo Bonzini <pbonzini@redhat.com>
To: "Herongguang (Stephen)" <herongguang.he@huawei.com>,
	rkrcmar@redhat.com, kvm@vger.kernel.org
Cc: qemu-devel@nongnu.org, wangxinxin.wang@huawei.com
Subject: Re: [PATCH v2] KVM: pci-assign: do not map smm memory slot pages
Date: Mon, 27 Mar 2017 14:22:53 +0200	[thread overview]
Message-ID: <4c9e0c46-ac81-a455-e2ed-530ad916ff71@redhat.com> (raw)
In-Reply-To: <58D8BD6D.8080404@huawei.com>



On 27/03/2017 09:21, Herongguang (Stephen) wrote:
> From f6f0ee6831488bef7af841cb86f3d85a04848fe5 Mon Sep 17 00:00:00 2001
> From: herongguang <herongguang.he@huawei.com>
> Date: Mon, 27 Mar 2017 15:08:59 +0800
> Subject: [PATCH] KVM: pci-assign: do not map smm memory slot pages
>  in vt-d page table
> 
> or VM memory are not put thus leaked in kvm_iommu_unmap_memslots() when
> destroy VM.
> 
> This is consistent with current vfio implementation.

Oops, you forgot a Signed-off-by.

Paolo

> ---
>  virt/kvm/kvm_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index 482612b..9018d06 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -1052,7 +1052,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
>       * changes) is disallowed above, so any other attribute changes
> getting
>       * here can be skipped.
>       */
> -    if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE)) {
> +    if ((as_id == 0) && ((change == KVM_MR_CREATE) || (change ==
> KVM_MR_MOVE))) {
>          r = kvm_iommu_map_pages(kvm, &new);
>          return r;
>      }

WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: "Herongguang (Stephen)" <herongguang.he@huawei.com>,
	rkrcmar@redhat.com, kvm@vger.kernel.org
Cc: qemu-devel@nongnu.org, wangxinxin.wang@huawei.com
Subject: Re: [Qemu-devel] [PATCH v2] KVM: pci-assign: do not map smm memory slot pages
Date: Mon, 27 Mar 2017 14:22:53 +0200	[thread overview]
Message-ID: <4c9e0c46-ac81-a455-e2ed-530ad916ff71@redhat.com> (raw)
In-Reply-To: <58D8BD6D.8080404@huawei.com>



On 27/03/2017 09:21, Herongguang (Stephen) wrote:
> From f6f0ee6831488bef7af841cb86f3d85a04848fe5 Mon Sep 17 00:00:00 2001
> From: herongguang <herongguang.he@huawei.com>
> Date: Mon, 27 Mar 2017 15:08:59 +0800
> Subject: [PATCH] KVM: pci-assign: do not map smm memory slot pages
>  in vt-d page table
> 
> or VM memory are not put thus leaked in kvm_iommu_unmap_memslots() when
> destroy VM.
> 
> This is consistent with current vfio implementation.

Oops, you forgot a Signed-off-by.

Paolo

> ---
>  virt/kvm/kvm_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index 482612b..9018d06 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -1052,7 +1052,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
>       * changes) is disallowed above, so any other attribute changes
> getting
>       * here can be skipped.
>       */
> -    if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE)) {
> +    if ((as_id == 0) && ((change == KVM_MR_CREATE) || (change ==
> KVM_MR_MOVE))) {
>          r = kvm_iommu_map_pages(kvm, &new);
>          return r;
>      }

  parent reply	other threads:[~2017-03-27 12:23 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-25 11:14 [PATCH] KVM: unmap SMM memslots in vt-d table herongguang
2017-03-25 11:14 ` [Qemu-devel] " herongguang
2017-03-27  7:21 ` [PATCH v2] KVM: pci-assign: do not map smm memory slot pages Herongguang (Stephen)
2017-03-27  7:21   ` [Qemu-devel] " Herongguang (Stephen)
2017-03-27 11:53   ` Paolo Bonzini
2017-03-27 11:53     ` [Qemu-devel] " Paolo Bonzini
2017-03-27 12:22   ` Paolo Bonzini [this message]
2017-03-27 12:22     ` Paolo Bonzini
2017-03-27 12:58     ` hrg
2017-03-28  1:08     ` Herongguang (Stephen)
2017-03-28  1:08       ` [Qemu-devel] " Herongguang (Stephen)
2017-03-28  8:09       ` Paolo Bonzini
2017-03-28  8:09         ` [Qemu-devel] " Paolo Bonzini

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