From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: qemu-trivial@nongnu.org, "Stefan Weil" <sw@weilnetz.de>,
"Thomas Huth" <thuth@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: [PATCH v2] tcg: Remove TCI experimental status
Date: Sat, 6 Nov 2021 12:14:57 +0100 [thread overview]
Message-ID: <20211106111457.517546-1-f4bug@amsat.org> (raw)
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>
---
v2:
- rebase
- precise sysemu/user (Richard)
Supersedes: <20210920062306.2723797-1-f4bug@amsat.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 bcb15497213..c29a4b8fe64 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 47df10afc21..16de7103d69 100644
--- a/meson.build
+++ b/meson.build
@@ -331,7 +331,7 @@
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
@@ -3286,7 +3286,7 @@
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 e740dce2a51..411952bc91a 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 55b8a785600..45e1f2e20da 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)'
--
2.31.1
next reply other threads:[~2021-11-06 11:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-06 11:14 Philippe Mathieu-Daudé [this message]
2021-11-10 12:07 ` [PATCH v2] tcg: Remove TCI experimental status Richard Henderson
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