From: Neo Jia <cjia@nvidia.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
"Kirti Wankhede" <kwankhede@nvidia.com>,
"Xiao Guangrong" <guangrong.xiao@linux.intel.com>,
"Andrea Arcangeli" <aarcange@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>
Subject: Re: [PATCH 0/2] KVM: MMU: support VMAs that got remap_pfn_range-ed
Date: Tue, 5 Jul 2016 07:02:22 -0700 [thread overview]
Message-ID: <20160705140222.GA31814@nvidia.com> (raw)
In-Reply-To: <fc22ad5a-5f47-458c-63db-b80e8ce96d99@redhat.com>
On Tue, Jul 05, 2016 at 02:18:28PM +0200, Paolo Bonzini wrote:
>
>
> On 05/07/2016 07:41, Neo Jia wrote:
> > On Thu, Jun 30, 2016 at 03:01:49PM +0200, Paolo Bonzini wrote:
> >> The vGPU folks would like to trap the first access to a BAR by setting
> >> vm_ops on the VMAs produced by mmap-ing a VFIO device. The fault handler
> >> then can use remap_pfn_range to place some non-reserved pages in the VMA.
> >>
> >> KVM lacks support for this kind of non-linear VM_PFNMAP mapping, and these
> >> patches should fix this.
> >
> > Hi Paolo,
> >
> > I have tested your patches with the mediated passthru patchset that is being
> > reviewed in KVM and QEMU mailing list.
> >
> > The fault handler gets called successfully and the previously mapped memory gets
> > unmmaped correctly via unmap_mapping_range.
>
> Great, then I'll include them in 4.8.
Thanks!
>
> Paolo
>
next prev parent reply other threads:[~2016-07-05 14:02 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-30 13:01 [PATCH 0/2] KVM: MMU: support VMAs that got remap_pfn_range-ed Paolo Bonzini
2016-06-30 13:01 ` [PATCH 1/2] KVM: MMU: prepare to support mapping of VM_IO and VM_PFNMAP frames Paolo Bonzini
2016-06-30 13:01 ` [PATCH 2/2] KVM: MMU: try to fix up page faults before giving up Paolo Bonzini
2016-06-30 21:59 ` [PATCH 0/2] KVM: MMU: support VMAs that got remap_pfn_range-ed Neo Jia
2016-07-04 6:39 ` Xiao Guangrong
2016-07-04 7:03 ` Neo Jia
2016-07-04 7:37 ` Xiao Guangrong
2016-07-04 7:48 ` Paolo Bonzini
2016-07-04 7:59 ` Xiao Guangrong
2016-07-04 8:14 ` Paolo Bonzini
2016-07-04 8:21 ` Xiao Guangrong
2016-07-04 8:48 ` Paolo Bonzini
2016-07-04 7:53 ` Neo Jia
2016-07-04 8:19 ` Xiao Guangrong
2016-07-04 8:41 ` Neo Jia
2016-07-04 8:45 ` Xiao Guangrong
2016-07-04 8:54 ` Xiao Guangrong
2016-07-04 9:16 ` Neo Jia
2016-07-04 10:16 ` Xiao Guangrong
2016-07-04 15:33 ` Neo Jia
2016-07-05 1:19 ` Xiao Guangrong
2016-07-05 1:35 ` Neo Jia
2016-07-05 4:02 ` Xiao Guangrong
2016-07-05 5:16 ` Neo Jia
2016-07-05 6:26 ` Xiao Guangrong
2016-07-05 7:30 ` Neo Jia
2016-07-05 9:02 ` Xiao Guangrong
2016-07-05 15:07 ` Neo Jia
2016-07-06 2:22 ` Xiao Guangrong
2016-07-06 4:01 ` Neo Jia
2016-07-04 7:38 ` Paolo Bonzini
2016-07-04 7:40 ` Xiao Guangrong
2016-07-05 5:41 ` Neo Jia
2016-07-05 12:18 ` Paolo Bonzini
2016-07-05 14:02 ` Neo Jia [this message]
2016-07-06 2:00 ` Xiao Guangrong
2016-07-06 2:18 ` Neo Jia
2016-07-06 2:35 ` Xiao Guangrong
2016-07-06 2:57 ` Neo Jia
2016-07-06 4:02 ` Xiao Guangrong
2016-07-06 11:48 ` Paolo Bonzini
2016-07-07 2:36 ` Xiao Guangrong
2016-07-06 6:05 ` Paolo Bonzini
2016-07-06 15:50 ` Alex Williamson
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