From: Richard Henderson <rth@twiddle.net>
To: "Sergey Fedorov" <serge.fdrv@gmail.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Sergey Fedorov" <sergey.fedorov@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
QEMU Developers <qemu-devel@nongnu.org>,
Peter Crosthwaite <crosthwaite.peter@gmail.com>
Subject: Re: [Qemu-devel] tcg: reworking tb_invalidated_flag
Date: Thu, 31 Mar 2016 09:25:21 -0700 [thread overview]
Message-ID: <56FD4F71.3020202@twiddle.net> (raw)
In-Reply-To: <56FD1B18.1040809@gmail.com>
On 03/31/2016 05:42 AM, Sergey Fedorov wrote:
> On 31/03/16 13:48, Alex Bennée wrote:
>> I know we are system focused at the moment but does linux-user ever
>> flush groups of TBs, say when mappings change? Or does this trigger a
>> whole tb_flush?
>
> Yes, e.g. target_mmap() calls tb_invalidate_phys_range().
Mapping over executable code is exceedingly rare, however.
We could do just as well with a full flush, if that's simpler.
r~
prev parent reply other threads:[~2016-03-31 16:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 17:08 [Qemu-devel] tcg: reworking tb_invalidated_flag Sergey Fedorov
2016-03-30 18:13 ` Paolo Bonzini
2016-03-31 13:14 ` Sergey Fedorov
2016-03-31 13:37 ` Alex Bennée
2016-03-31 14:06 ` Sergey Fedorov
2016-03-31 19:03 ` Sergey Fedorov
2016-03-31 19:56 ` Paolo Bonzini
2016-04-01 11:11 ` Alex Bennée
2016-04-01 11:23 ` Sergey Fedorov
2016-03-31 13:40 ` Paolo Bonzini
2016-03-31 14:35 ` Sergey Fedorov
2016-03-31 14:44 ` Paolo Bonzini
2016-03-30 19:08 ` Richard Henderson
2016-03-30 21:21 ` Sergey Fedorov
2016-03-31 10:48 ` Alex Bennée
2016-03-31 12:42 ` Sergey Fedorov
2016-03-31 16:25 ` Richard Henderson [this message]
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