From: Richard Henderson <rth@twiddle.net>
To: Aurelien Jarno <aurelien@aurel32.net>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 1/7] alpha: Implement IMB; add placeholders for other userspace PALcalls.
Date: Sun, 13 Dec 2009 11:54:02 -0800 [thread overview]
Message-ID: <4B25465A.8090002@twiddle.net> (raw)
In-Reply-To: <20091213192815.GB4281@volta.aurel32.net>
On 12/13/2009 11:28 AM, Aurelien Jarno wrote:
> Is it really necessary to flush all the TB here? QEMU should already
> discard TB that have been modified.
No. But I meant to look into this more carefully with a view to
disabling the other checking within QEMU and speed things up a tad. It
seems to me that the explicit checking with each memory write ought to
only be necessary on architectures like x86 that don't architecturally
require a flush insn to be used.
I can drop this fragment if necessary for patch acceptance, however.
r~
next prev parent reply other threads:[~2009-12-13 19:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-10 0:05 [Qemu-devel] [PATCH 0/7] Improve alpha-linux userspace emulation Richard Henderson
2009-12-09 23:38 ` [Qemu-devel] [PATCH 1/7] alpha: Implement IMB; add placeholders for other userspace PALcalls Richard Henderson
2009-12-13 19:28 ` Aurelien Jarno
2009-12-13 19:54 ` Richard Henderson [this message]
2009-12-13 20:47 ` Aurelien Jarno
2009-12-09 23:39 ` [Qemu-devel] [PATCH 2/7] alpha: Drop bogus UNIQ initial value on Linux Richard Henderson
2009-12-09 23:40 ` [Qemu-devel] [PATCH 3/7] alpha: Add binfmt entry Richard Henderson
2009-12-09 23:44 ` [Qemu-devel] [PATCH 4/7] alpha: Remove bogus DO_TB_FLUSH code from translator Richard Henderson
2009-12-09 23:46 ` [Qemu-devel] [PATCH 5/7] alpha: Honor the -cpu command line argument Richard Henderson
2009-12-09 23:48 ` [Qemu-devel] [PATCH 6/7] alpha: Enable softfloat Richard Henderson
2009-12-09 23:56 ` [Qemu-devel] [PATCH 7/7] alpha: Fixes for alpha-linux syscalls Richard Henderson
2009-12-10 7:11 ` [Qemu-devel] [PATCH 0/7] Improve alpha-linux userspace emulation Laurent Desnogues
2009-12-10 16:54 ` Richard Henderson
2009-12-11 10:08 ` Tristan Gingold
2009-12-11 23:49 ` Richard Henderson
2009-12-13 19:46 ` Aurelien Jarno
2009-12-13 20:16 ` Andreas Färber
2009-12-14 0:43 ` Richard Henderson
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