From: Barret Rhoden <brho@google.com>
To: Sean Christopherson <sean.j.christopherson@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul Mackerras <paulus@ozlabs.org>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
kvm-ppc@vger.kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu,
syzbot+c9d1fb51ac9d0d10c39d@syzkaller.appspotmail.com,
Andrea Arcangeli <aarcange@redhat.com>,
Dan Williams <dan.j.williams@intel.com>,
David Hildenbrand <david@redhat.com>,
Jason Zeng <jason.zeng@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Liran Alon <liran.alon@oracle.com>,
linux-nvdimm <linux-nvdimm@lists.01.org>
Subject: Re: [PATCH 00/14] KVM: x86/mmu: Huge page fixes, cleanup, and DAX
Date: Thu, 9 Jan 2020 14:47:41 -0500 [thread overview]
Message-ID: <e3e12d17-32e4-84ad-94da-91095d999238@google.com> (raw)
In-Reply-To: <20200108202448.9669-1-sean.j.christopherson@intel.com>
Hi -
On 1/8/20 3:24 PM, Sean Christopherson wrote:
> This series is a mix of bug fixes, cleanup and new support in KVM's
> handling of huge pages. The series initially stemmed from a syzkaller
> bug report[1], which is fixed by patch 02, "mm: thp: KVM: Explicitly
> check for THP when populating secondary MMU".
>
> While investigating options for fixing the syzkaller bug, I realized KVM
> could reuse the approach from Barret's series to enable huge pages for DAX
> mappings in KVM[2] for all types of huge mappings, i.e. walk the host page
> tables instead of querying metadata (patches 05 - 09).
Thanks, Sean. I tested this patch series out, and it works for me.
(Huge KVM mappings of a DAX file, etc.).
Thanks,
Barret
next prev parent reply other threads:[~2020-01-09 19:47 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-08 20:24 [PATCH 00/14] KVM: x86/mmu: Huge page fixes, cleanup, and DAX Sean Christopherson
2020-01-08 20:24 ` [PATCH 01/14] KVM: x86/mmu: Enforce max_level on HugeTLB mappings Sean Christopherson
2020-01-08 20:24 ` [PATCH 02/14] mm: thp: KVM: Explicitly check for THP when populating secondary MMU Sean Christopherson
2020-01-08 20:24 ` [PATCH 03/14] KVM: Use vcpu-specific gva->hva translation when querying host page size Sean Christopherson
2020-01-08 20:24 ` [PATCH 04/14] KVM: Play nice with read-only memslots " Sean Christopherson
2020-01-21 14:24 ` Paolo Bonzini
2020-01-08 20:24 ` [PATCH 05/14] x86/mm: Introduce lookup_address_in_mm() Sean Christopherson
2020-01-09 21:04 ` Thomas Gleixner
2020-01-21 14:26 ` Paolo Bonzini
2020-01-08 20:24 ` [PATCH 06/14] KVM: x86/mmu: Refactor THP adjust to prep for changing query Sean Christopherson
2020-01-08 20:24 ` [PATCH 07/14] KVM: x86/mmu: Walk host page tables to find THP mappings Sean Christopherson
2020-01-21 14:40 ` Paolo Bonzini
2020-01-08 20:24 ` [PATCH 08/14] KVM: x86/mmu: Drop level optimization from fast_page_fault() Sean Christopherson
2020-01-08 20:24 ` [PATCH 09/14] KVM: x86/mmu: Rely on host page tables to find HugeTLB mappings Sean Christopherson
2020-01-08 20:24 ` [PATCH 10/14] KVM: x86/mmu: Remove obsolete gfn restoration in FNAME(fetch) Sean Christopherson
2020-01-08 20:24 ` [PATCH 11/14] KVM: x86/mmu: Zap any compound page when collapsing sptes Sean Christopherson
2020-01-08 20:24 ` [PATCH 12/14] KVM: x86/mmu: Fold max_mapping_level() into kvm_mmu_hugepage_adjust() Sean Christopherson
2020-01-21 15:12 ` Paolo Bonzini
2020-01-08 20:24 ` [PATCH 13/14] KVM: x86/mmu: Remove lpage_is_disallowed() check from set_spte() Sean Christopherson
2020-01-08 20:24 ` [PATCH 14/14] KVM: x86/mmu: Use huge pages for DAX-backed files Sean Christopherson
2020-01-09 19:47 ` Barret Rhoden [this message]
2020-01-21 15:10 ` [PATCH 00/14] KVM: x86/mmu: Huge page fixes, cleanup, and DAX Paolo Bonzini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e3e12d17-32e4-84ad-94da-91095d999238@google.com \
--to=brho@google.com \
--cc=aarcange@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=dan.j.williams@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=dave.jiang@intel.com \
--cc=david@redhat.com \
--cc=james.morse@arm.com \
--cc=jason.zeng@intel.com \
--cc=jmattson@google.com \
--cc=joro@8bytes.org \
--cc=julien.thierry.kdev@gmail.com \
--cc=kvm-ppc@vger.kernel.org \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-nvdimm@lists.01.org \
--cc=liran.alon@oracle.com \
--cc=luto@kernel.org \
--cc=maz@kernel.org \
--cc=paulus@ozlabs.org \
--cc=pbonzini@redhat.com \
--cc=peterz@infradead.org \
--cc=sean.j.christopherson@intel.com \
--cc=suzuki.poulose@arm.com \
--cc=syzbot+c9d1fb51ac9d0d10c39d@syzkaller.appspotmail.com \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).