From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: [PULL 2/4] tcg: Remove TCI experimental status
Date: Thu, 11 Nov 2021 12:06:54 +0100 [thread overview]
Message-ID: <20211111110656.237727-3-richard.henderson@linaro.org> (raw)
In-Reply-To: <20211111110656.237727-1-richard.henderson@linaro.org>
From: Philippe Mathieu-Daudé <f4bug@amsat.org>
The following commits (released in v6.0.0) made raised the
quality of the TCI backend to the other TCG architectures,
thus is is not considerated experimental anymore:
- c6fbea47664..2f74f45e32b
- dc09f047edd..9e9acb7b348
- b6139eb0578..2fc6f16ca5e
- dbcbda2cd84..5e8892db93f
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211106111457.517546-1-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
docs/about/build-platforms.rst | 10 ++++++----
meson.build | 4 ++--
meson_options.txt | 2 +-
scripts/meson-buildoptions.sh | 3 +--
4 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/docs/about/build-platforms.rst b/docs/about/build-platforms.rst
index bcb1549721..c29a4b8fe6 100644
--- a/docs/about/build-platforms.rst
+++ b/docs/about/build-platforms.rst
@@ -54,10 +54,12 @@ Those hosts are officially supported, with various accelerators:
* - x86
- hax, hvf (64 bit only), kvm, nvmm, tcg, whpx (64 bit only), xen
-Other host architectures are not supported. It is possible to build QEMU on an
-unsupported host architecture using the configure ``--enable-tcg-interpreter``
-option to enable the experimental TCI support, but note that this is very slow
-and is not recommended.
+Other host architectures are not supported. It is possible to build QEMU system
+emulation on an unsupported host architecture using the configure
+``--enable-tcg-interpreter`` option to enable the TCI support, but note that
+this is very slow and is not recommended for normal use. QEMU user emulation
+requires host-specific support for signal handling, therefore TCI won't help
+on unsupported host architectures.
Non-supported architectures may be removed in the future following the
:ref:`deprecation process<Deprecated features>`.
diff --git a/meson.build b/meson.build
index 9702fdce6d..2ece4fe088 100644
--- a/meson.build
+++ b/meson.build
@@ -335,7 +335,7 @@ tcg_arch = config_host['ARCH']
if not get_option('tcg').disabled()
if cpu not in supported_cpus
if get_option('tcg_interpreter')
- warning('Unsupported CPU @0@, will use TCG with TCI (experimental and slow)'.format(cpu))
+ warning('Unsupported CPU @0@, will use TCG with TCI (slow)'.format(cpu))
else
error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
endif
@@ -3290,7 +3290,7 @@ endif
summary_info += {'TCG support': config_all.has_key('CONFIG_TCG')}
if config_all.has_key('CONFIG_TCG')
if get_option('tcg_interpreter')
- summary_info += {'TCG backend': 'TCI (TCG with bytecode interpreter, experimental and slow)'}
+ summary_info += {'TCG backend': 'TCI (TCG with bytecode interpreter, slow)'}
else
summary_info += {'TCG backend': 'native (@0@)'.format(cpu)}
endif
diff --git a/meson_options.txt b/meson_options.txt
index e740dce2a5..411952bc91 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -59,7 +59,7 @@ option('xen_pci_passthrough', type: 'feature', value: 'auto',
option('tcg', type: 'feature', value: 'auto',
description: 'TCG support')
option('tcg_interpreter', type: 'boolean', value: false,
- description: 'TCG with bytecode interpreter (experimental and slow)')
+ description: 'TCG with bytecode interpreter (slow)')
option('cfi', type: 'boolean', value: 'false',
description: 'Control-Flow Integrity (CFI)')
option('cfi_debug', type: 'boolean', value: 'false',
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
index 55b8a78560..45e1f2e20d 100644
--- a/scripts/meson-buildoptions.sh
+++ b/scripts/meson-buildoptions.sh
@@ -13,8 +13,7 @@ meson_options_help() {
printf "%s\n" ' jemalloc/system/tcmalloc)'
printf "%s\n" ' --enable-slirp[=CHOICE] Whether and how to find the slirp library'
printf "%s\n" ' (choices: auto/disabled/enabled/internal/system)'
- printf "%s\n" ' --enable-tcg-interpreter TCG with bytecode interpreter (experimental and'
- printf "%s\n" ' slow)'
+ printf "%s\n" ' --enable-tcg-interpreter TCG with bytecode interpreter (slow)'
printf "%s\n" ' --enable-trace-backends=CHOICE'
printf "%s\n" ' Set available tracing backends [log] (choices:'
printf "%s\n" ' dtrace/ftrace/log/nop/simple/syslog/ust)'
--
2.25.1
next prev parent reply other threads:[~2021-11-11 11:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-11 11:06 [PULL 0/4] tcg patch queue Richard Henderson
2021-11-11 11:06 ` [PULL 1/4] tcg/optimize: Add an extra cast to fold_extract2 Richard Henderson
2021-11-11 11:06 ` Richard Henderson [this message]
2021-11-11 11:06 ` [PULL 3/4] tcg: Document ctpop opcodes Richard Henderson
2021-11-11 11:06 ` [PULL 4/4] tcg/s390x: Fix tcg_out_vec_op argument type Richard Henderson
2021-11-11 13:57 ` [PULL 0/4] tcg patch queue 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=20211111110656.237727-3-richard.henderson@linaro.org \
--to=richard.henderson@linaro.org \
--cc=f4bug@amsat.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.