From: Marcelo Tosatti <mtosatti@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 0/5] Fix some mmu/emulator atomicity issues (v2)
Date: Tue, 16 Mar 2010 13:36:49 -0300 [thread overview]
Message-ID: <20100316163649.GA9718@amt.cnet> (raw)
In-Reply-To: <1268654397-6650-1-git-send-email-avi@redhat.com>
On Mon, Mar 15, 2010 at 01:59:52PM +0200, Avi Kivity wrote:
> Currently when we emulate a locked operation into a shadowed guest page
> table, we perform a write rather than a true atomic. This is indicated
> by the "emulating exchange as write" message that shows up in dmesg.
>
> In addition, the pte prefetch operation during invlpg suffered from a
> race. This was fixed by removing the operation.
>
> This patchset fixes both issues and reinstates pte prefetch on invlpg.
>
> v3:
> - rebase against next branch (resolves conflicts via hypercall patch)
>
> v2:
> - fix truncated description for patch 1
> - add new patch 4, which fixes a bug in patch 5
Applied, thanks.
next prev parent reply other threads:[~2010-03-16 17:57 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-15 11:59 [PATCH 0/5] Fix some mmu/emulator atomicity issues (v2) Avi Kivity
2010-03-15 11:59 ` [PATCH 1/5] KVM: MMU: Consolidate two guest pte reads in kvm_mmu_pte_write() Avi Kivity
2010-03-15 11:59 ` [PATCH 2/5] KVM: Make locked operations truly atomic Avi Kivity
2010-03-17 7:45 ` Jan Kiszka
2010-03-17 8:05 ` Avi Kivity
2010-03-20 9:14 ` [PATCH] KVM: x86: Fix 32-bit build breakage due to typo Jan Kiszka
2010-03-21 14:34 ` Avi Kivity
2010-03-15 11:59 ` [PATCH 3/5] KVM: Don't follow an atomic operation by a non-atomic one Avi Kivity
2010-03-15 11:59 ` [PATCH 4/5] KVM: MMU: Do not instantiate nontrapping spte on unsync page Avi Kivity
2010-03-15 11:59 ` [PATCH 5/5] KVM: MMU: Reinstate pte prefetch on invlpg Avi Kivity
2010-03-16 16:36 ` Marcelo Tosatti [this message]
2010-03-16 18:22 ` [PATCH 0/5] Fix some mmu/emulator atomicity issues (v2) Alexander Graf
2010-03-16 19:33 ` Marcelo Tosatti
2010-03-17 3:58 ` Avi Kivity
-- strict thread matches above, loose matches on Subject: below --
2010-03-10 14:50 Avi Kivity
2010-03-14 7:03 ` Avi Kivity
2010-03-15 10:16 ` Marcelo Tosatti
2010-03-15 11:52 ` Avi Kivity
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