From: Richard Henderson <rth@twiddle.net>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
QEMU Developers <qemu-devel@nongnu.org>,
dl.soluz@gmx.net, Artyom Tarasenko <atar4qemu@gmail.com>
Subject: Re: [Qemu-devel] [RFC 00/20] Do away with TB retranslation
Date: Tue, 8 Sep 2015 12:28:00 -0700 [thread overview]
Message-ID: <55EF36C0.5080207@twiddle.net> (raw)
In-Reply-To: <CAFEAcA853DaZvwoK2Nvqq8styfkER=p20Qco2SUYjWyDeCAn1g@mail.gmail.com>
On 09/08/2015 12:06 PM, Peter Maydell wrote:
> On 8 September 2015 at 20:00, Richard Henderson <rth@twiddle.net> wrote:
>> On 09/08/2015 11:56 AM, Peter Maydell wrote:
>>> My sparc test image (which is just the 32-bit debian from
>>> Aurelien's website) boots fine even with this patchset...
>>
>> Odd, it shouldn't. ;-)
>>
>> Anyway, I've just fixed the sparc problem and re-pushed the tree to
>>
>> git://github.com/rth7680/qemu.git tcg-search-2
>>
>> for anyone who wants to do any more testing.
>
> ...so what was the bug? (Push doesn't seem to have made it
> to github yet.)
Err.. it has. Tip should be 98cb3e2ecffd126177f43634b643be81bdc764e7.
So I guess you pulled it post fix?
The problem was in 12/20, "target-sparc: Remove gen_opc_jump_pc".
The original was slightly off in how it was computing the npc in a delay slot.
The replacement keeps the dc->jump_pc array, but verifies that the value of
dc->jump_pc[1] is as expected: jump false to next insn. It's a smaller change
to the translator, and easier to verify correctness.
r~
next prev parent reply other threads:[~2015-09-08 19:28 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-02 5:51 [Qemu-devel] [RFC 00/20] Do away with TB retranslation Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 02/20] target-*: Unconditionally emit tcg_gen_insn_start Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 03/20] tcg: Allow extra data to be attached to insn_start Richard Henderson
2015-09-08 18:44 ` Peter Maydell
2015-09-02 5:51 ` [Qemu-devel] [PATCH 04/20] target-arm: Add condexec state " Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 05/20] target-i386: Add cc_op " Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 06/20] target-mips: Add delayed branch " Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 07/20] target-s390x: Add cc_op " Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 08/20] target-sh4: Add flags " Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 09/20] target-cris: Mirror gen_opc_pc into insn_start Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 10/20] target-sparc: Tidy gen_branch_a interface Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 11/20] target-sparc: Split out gen_branch_n Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 12/20] target-sparc: Remove gen_opc_jump_pc Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 13/20] target-sparc: Add npc state to insn_start Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 14/20] tcg: Merge cpu_gen_code into tb_gen_code Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 15/20] target-*: Drop cpu_gen_code define Richard Henderson
2015-09-02 5:51 ` [Qemu-devel] [PATCH 16/20] tcg: Add TCG_MAX_INSNS Richard Henderson
2015-09-02 5:52 ` [Qemu-devel] [PATCH 17/20] tcg: Pass data argument to restore_state_to_opc Richard Henderson
2015-09-08 18:46 ` Peter Maydell
2015-09-17 19:39 ` Richard Henderson
2015-09-02 5:52 ` [Qemu-devel] [PATCH 18/20] tcg: Save insn data and use it in cpu_restore_state_from_tb Richard Henderson
2015-09-10 13:49 ` Peter Maydell
2015-09-11 10:29 ` Sergey Fedorov
2015-09-11 10:32 ` Peter Maydell
2015-09-11 10:46 ` Sergey Fedorov
2015-09-15 20:08 ` Richard Henderson
2015-09-02 5:52 ` [Qemu-devel] [PATCH 19/20] tcg: Remove gen_intermediate_code_pc Richard Henderson
2015-09-08 18:49 ` Peter Maydell
2015-09-02 5:52 ` [Qemu-devel] [PATCH 20/20] tcg: Remove tcg_gen_code_search_pc Richard Henderson
2015-09-02 12:21 ` [Qemu-devel] [RFC 00/20] Do away with TB retranslation Max Filippov
2015-09-02 14:21 ` Richard Henderson
2015-09-04 15:18 ` Max Filippov
2015-09-04 15:31 ` Peter Maydell
2015-09-04 16:46 ` Richard Henderson
2015-09-04 17:07 ` Max Filippov
2015-09-05 14:11 ` Mark Cave-Ayland
2015-09-06 20:19 ` Richard Henderson
2015-09-09 15:35 ` Artyom Tarasenko
2015-09-08 18:56 ` Peter Maydell
2015-09-08 19:00 ` Richard Henderson
2015-09-08 19:06 ` Peter Maydell
2015-09-08 19:28 ` Richard Henderson [this message]
2015-09-08 20:25 ` Peter Maydell
2015-09-09 15:05 ` Artyom Tarasenko
2015-09-09 16:18 ` Paolo Bonzini
2015-09-09 17:48 ` Artyom Tarasenko
2015-09-10 6:07 ` Dennis Luehring
2015-09-10 7:00 ` Artyom Tarasenko
2015-09-10 9:32 ` Dennis Luehring
2015-09-10 9:54 ` Artyom Tarasenko
2015-09-10 10:37 ` Dennis Luehring
2015-09-10 10:57 ` Paolo Bonzini
2015-09-10 11:02 ` Dennis Luehring
2015-09-10 11:20 ` Artyom Tarasenko
2015-09-10 13:54 ` Peter Maydell
2015-09-10 17:48 ` Aurelien Jarno
2015-09-13 21:00 ` Aurelien Jarno
2015-09-10 18:55 ` Alex Bennée
2015-09-15 20:19 ` Richard Henderson
2015-09-16 6:19 ` Dennis Luehring
2015-09-16 8:59 ` Alex Bennée
2015-09-16 20:41 ` Richard Henderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=55EF36C0.5080207@twiddle.net \
--to=rth@twiddle.net \
--cc=atar4qemu@gmail.com \
--cc=aurelien@aurel32.net \
--cc=dl.soluz@gmx.net \
--cc=peter.maydell@linaro.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.