From: Avi Kivity <avi@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Gleb Natapov <gleb@redhat.com>,
Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: Re: [PATCH] KVM: x86: fix vcpu->mmio_fragments overflow
Date: Mon, 22 Oct 2012 14:18:48 +0200 [thread overview]
Message-ID: <508539A8.40404@redhat.com> (raw)
In-Reply-To: <508531E1.2030307@siemens.com>
On 10/22/2012 01:45 PM, Jan Kiszka wrote:
>> Indeed. git pull, recheck and call for kvm_flush_coalesced_mmio_buffer()
>> is gone. So this will break new userspace, not old. By global you mean
>> shared between devices (or memory regions)?
>
> Yes. We only have a single ring per VM, so we cannot flush multi-second
> VGA access separately from other devices. In theory solvable by
> introducing per-region rings that can be driven separately.
But in practice unneeded. Real time VMs can disable coalescing and not
use planar VGA modes.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-10-22 12:18 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-19 7:37 [PATCH] KVM: x86: fix vcpu->mmio_fragments overflow Xiao Guangrong
2012-10-19 7:39 ` [PATCH] emulator test: add "rep ins" mmio access test Xiao Guangrong
2012-11-01 0:05 ` Marcelo Tosatti
2012-10-22 9:16 ` [PATCH] KVM: x86: fix vcpu->mmio_fragments overflow Gleb Natapov
2012-10-22 11:09 ` Xiao Guangrong
2012-10-22 11:23 ` Gleb Natapov
2012-10-22 11:35 ` Jan Kiszka
2012-10-22 11:43 ` Gleb Natapov
2012-10-22 11:45 ` Jan Kiszka
2012-10-22 12:18 ` Avi Kivity [this message]
2012-10-22 12:45 ` Jan Kiszka
2012-10-22 12:53 ` Gleb Natapov
2012-10-22 12:55 ` Jan Kiszka
2012-10-22 12:58 ` Avi Kivity
2012-10-22 13:05 ` Jan Kiszka
2012-10-22 13:08 ` Gleb Natapov
2012-10-22 13:25 ` Jan Kiszka
2012-10-22 14:00 ` Gleb Natapov
2012-10-22 14:23 ` Jan Kiszka
2012-10-22 15:36 ` Avi Kivity
2012-10-22 12:58 ` Gleb Natapov
2012-10-22 12:55 ` Avi Kivity
2012-10-22 13:01 ` Gleb Natapov
2012-10-22 13:02 ` Avi Kivity
2012-10-22 13:05 ` Gleb Natapov
2012-10-22 12:56 ` Avi Kivity
2012-10-22 13:58 ` Avi Kivity
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