From: Avi Kivity <avi@redhat.com>
To: ya su <suya94335@gmail.com>
Cc: Andrew Theurer <habanero@linux.vnet.ibm.com>, kvm@vger.kernel.org
Subject: Re: windows workload: many ept_violation and mmio exits
Date: Sun, 28 Aug 2011 10:42:22 +0300 [thread overview]
Message-ID: <4E59F15E.6000201@redhat.com> (raw)
In-Reply-To: <CA+tHM2HH437Y4KLmGO+59wvR-TMSacGnxgt5QB8w5LDtJ+p3Xw@mail.gmail.com>
On 08/26/2011 08:32 AM, ya su wrote:
> hi,Avi:
>
> I met the same problem, tons of hpet vm_exits(vector 209, fault
> address is in the guest vm's hpet mmio range), even I disable hpet
> device in win7 guest vm, it still produce a larget amount of vm_exits
> when trace-cmd ; I add -no-hpet to start the vm, it still has HPET
> device inside VM.
>
> Does that means the HPET device in VM does not depend on the
> emulated hpet device in qemu-kvm? Is there any way to disable the VM
> HPET device to prevent so many vm_exits? Thansk.
>
Looks like a bug to me.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
next prev parent reply other threads:[~2011-08-28 7:42 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-03 13:46 windows workload: many ept_violation and mmio exits Andrew Theurer
2009-12-03 14:34 ` Avi Kivity
2011-08-26 5:32 ` ya su
2011-08-28 7:42 ` Avi Kivity [this message]
2011-08-28 18:54 ` Alexander Graf
2011-08-28 18:54 ` [Qemu-devel] " Alexander Graf
2011-08-28 20:42 ` HPET configuration in Seabios (was: Re: windows workload: many ept_violation and mmio exits) Jan Kiszka
2011-08-28 20:42 ` [Qemu-devel] " Jan Kiszka
2011-08-28 22:14 ` Kevin O'Connor
2011-08-28 22:14 ` [Qemu-devel] " Kevin O'Connor
2011-08-29 5:32 ` HPET configuration in Seabios Avi Kivity
2011-08-29 5:32 ` [Qemu-devel] " Avi Kivity
2011-08-29 10:25 ` Jan Kiszka
2011-08-29 10:25 ` [Qemu-devel] " Jan Kiszka
2011-08-29 11:00 ` Avi Kivity
2011-08-29 11:00 ` [Qemu-devel] " Avi Kivity
2011-08-29 11:05 ` Jan Kiszka
2011-08-29 11:05 ` [Qemu-devel] " Jan Kiszka
2011-08-29 11:11 ` Avi Kivity
2011-08-29 11:11 ` [Qemu-devel] " Avi Kivity
2011-08-29 11:12 ` Jan Kiszka
2011-08-29 11:12 ` [Qemu-devel] " Jan Kiszka
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