From: Thomas Huth <thuth@redhat.com>
To: Richard Henderson <richard.henderson@linaro.org>, qemu-devel@nongnu.org
Cc: pbonzini@redhat.com, mark.cave-ayland@ilande.co.uk,
berrange@redhat.com, philmd@linaro.org
Subject: Re: [PATCH v3 10/12] meson: Disallow 64-bit on 32-bit emulation
Date: Wed, 5 Feb 2025 07:53:41 +0100 [thread overview]
Message-ID: <e74ff709-3c36-4d2f-94e7-60a80a5c0cc1@redhat.com> (raw)
In-Reply-To: <20250204215359.1238808-11-richard.henderson@linaro.org>
On 04/02/2025 22.53, Richard Henderson wrote:
> For system mode, we can rarely support the amount of RAM that
> the guest requires. TCG emulation is restricted to round-robin
> mode, which solves many of the atomicity issues, but not those
> associated with virtio. In any case, round-robin does nothing
> to help the speed of emulation.
>
> For user mode, most emulation does not succeed at all. Most
> of the time we cannot even load 64-bit non-PIE binaries due
> to lack of a 64-bit address space. Threads are run in
> parallel, not round-robin, which means that atomicity
> is not handled.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> meson.build | 13 ++++++++++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
Reviewed-by: Thomas Huth <thuth@redhat.com>
next prev parent reply other threads:[~2025-02-05 6:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-04 21:53 [PATCH v3 00/12] meson: Deprecate 32-bit host support Richard Henderson
2025-02-04 21:53 ` [PATCH v3 01/12] meson: Drop tcg as a module Richard Henderson
2025-02-04 21:53 ` [PATCH v3 02/12] tcg: Move stubs in tcg/perf.h to tcg/perf-stubs.c Richard Henderson
2025-02-05 21:15 ` Philippe Mathieu-Daudé
2025-02-04 21:53 ` [PATCH v3 03/12] plugins: Uninline qemu_plugin_add_opts Richard Henderson
2025-02-05 21:15 ` Philippe Mathieu-Daudé
2025-02-04 21:53 ` [PATCH v3 04/12] meson: Disallow 64-bit on 32-bit KVM emulation Richard Henderson
2025-02-05 6:33 ` Thomas Huth
2025-02-05 16:43 ` Philippe Mathieu-Daudé
2025-02-04 21:53 ` [PATCH v3 05/12] meson: Disallow 64-bit on 32-bit Xen emulation Richard Henderson
2025-02-05 6:38 ` Thomas Huth
2025-02-05 17:56 ` Philippe Mathieu-Daudé
2025-02-04 21:53 ` [PATCH v3 06/12] meson: Disallow 64-bit on 32-bit HVF/NVMM/WHPX emulation Richard Henderson
2025-02-05 6:50 ` Thomas Huth
2025-02-05 19:09 ` Richard Henderson
2025-02-04 21:53 ` [PATCH v3 07/12] gitlab-ci: Replace aarch64 with arm in cross-i686-tci build Richard Henderson
2025-02-04 21:53 ` [PATCH v3 08/12] configure: Define TARGET_LONG_BITS in configs/targets/*.mak Richard Henderson
2025-02-04 21:53 ` [PATCH v3 09/12] target/*: Remove TARGET_LONG_BITS from cpu-param.h Richard Henderson
2025-02-04 21:53 ` [PATCH v3 10/12] meson: Disallow 64-bit on 32-bit emulation Richard Henderson
2025-02-05 6:53 ` Thomas Huth [this message]
2025-02-04 21:53 ` [PATCH v3 11/12] meson: Deprecate 32-bit host support Richard Henderson
2025-02-05 18:05 ` Philippe Mathieu-Daudé
2025-02-05 18:12 ` Richard Henderson
2025-02-05 18:53 ` Philippe Mathieu-Daudé
2025-02-04 21:53 ` [PATCH v3 12/12] tcg: Remove TCG_OVERSIZED_GUEST Richard Henderson
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