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[PATCH v4 1/5] docs/about/deprecated: Deprecate 32-bit x86 hosts for sys
From: |
Thomas Huth |
Subject: |
[PATCH v4 1/5] docs/about/deprecated: Deprecate 32-bit x86 hosts for system emulation |
Date: |
Mon, 6 Mar 2023 09:46:54 +0100 |
Hardly anybody still uses 32-bit x86 hosts today, so we should start
deprecating them to stop wasting our time and CI minutes here.
For example, there are also still some unresolved problems with these:
When emulating 64-bit binaries in user mode, TCG does not honor atomicity
for 64-bit accesses, which is "perhaps worse than not working at all"
(quoting Richard). Let's simply make it clear that people should use
64-bit x86 hosts nowadays and we do not intend to fix/maintain the old
32-bit stuff.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
docs/about/deprecated.rst | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 15084f7bea..1ca9dc33d6 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -196,6 +196,17 @@ CI coverage support may bitrot away before the deprecation
process
completes. The little endian variants of MIPS (both 32 and 64 bit) are
still a supported host architecture.
+System emulation on 32-bit x86 hosts (since 8.0)
+''''''''''''''''''''''''''''''''''''''''''''''''
+
+Support for 32-bit x86 host deployments is increasingly uncommon in mainstream
+OS distributions given the widespread availability of 64-bit x86 hardware.
+The QEMU project no longer considers 32-bit x86 support for system emulation to
+be an effective use of its limited resources, and thus intends to discontinue
+it. Since all recent x86 hardware from the past >10 years is capable of the
+64-bit x86 extensions, a corresponding 64-bit OS should be used instead.
+
+
QEMU API (QAPI) events
----------------------
--
2.31.1
- [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, (continued)
- [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Thomas Huth, 2023/03/06
- Re: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Daniel P . Berrangé, 2023/03/06
- Re: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Thomas Huth, 2023/03/06
- Re: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Daniel P . Berrangé, 2023/03/06
- Re: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Thomas Huth, 2023/03/06
- Re: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Daniel P . Berrangé, 2023/03/06
- Re: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Daniel P . Berrangé, 2023/03/06
- Re: [PATCH v4 2/5] docs/about/deprecated: Deprecate the qemu-system-i386 binary, Philippe Mathieu-Daudé, 2023/03/06
[PATCH v4 1/5] docs/about/deprecated: Deprecate 32-bit x86 hosts for system emulation,
Thomas Huth <=
[PATCH v4 5/5] gitlab-ci.d/crossbuilds: Drop the 32-bit arm system emulation jobs, Thomas Huth, 2023/03/06
[PATCH v4 3/5] gitlab-ci.d/crossbuilds: Drop the i386 system emulation job, Thomas Huth, 2023/03/06
[PATCH v4 4/5] docs/about/deprecated: Deprecate 32-bit arm hosts for system emulation, Thomas Huth, 2023/03/06