From: "Daniel P. Berrangé" <berrange@redhat.com>
To: Markus Armbruster <armbru@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
qemu-devel@nongnu.org, Peter Maydell <peter.maydell@linaro.org>,
Richard Henderson <richard.henderson@linaro.org>
Subject: Re: Regression in -readconfig [memory] size (was: [PULL 13/27] machine: add mem compound property)
Date: Fri, 5 Aug 2022 10:51:33 +0100 [thread overview]
Message-ID: <YuzoJfTzuc/oM7BI@redhat.com> (raw)
In-Reply-To: <87pmhf6nrv.fsf_-_@pond.sub.org>
On Fri, Aug 05, 2022 at 11:30:12AM +0200, Markus Armbruster wrote:
> Markus Armbruster <armbru@redhat.com> writes:
>
> > Paolo Bonzini <pbonzini@redhat.com> writes:
> >
> >> Make -m syntactic sugar for a compound property "-machine
> >> mem.{size,max-size,slots}". The new property does not have
> >> the magic conversion to megabytes of unsuffixed arguments,
> >> and also does not understand that "0" means the default size
> >> (you have to leave it out to get the default). This means
> >> that we need to convert the QemuOpts by hand to a QDict.
> >>
> >> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> >> Message-Id: <20220414165300.555321-4-pbonzini@redhat.com>
> >> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
>
> [...]
>
> > This appears to change the meaning of
> >
> > [memory]
> > size = "1024"
> >
> > in a -readconfig file from 1024MiB to 8KiB (1024 Bytes rounded up to
> > 8KiB silently).
>
> No reply so far.
>
> If we can't fix this, we better mention it in the release notes.
That is such a massive change in semantics of -readconfig that if we
can't fix it we might as well just go all out and fully drop all notion
of backcompat for -readconfig.
With regards,
Daniel
--
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next prev parent reply other threads:[~2022-08-05 10:07 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-12 17:24 [PULL 00/27] Misc patches for 2022-05-12 Paolo Bonzini
2022-05-12 17:24 ` [PULL 01/27] pc-bios/optionrom: detect -fno-pie Paolo Bonzini
2022-05-12 17:24 ` [PULL 02/27] pc-bios/optionrom: compile with -Wno-array-bounds Paolo Bonzini
2022-05-12 17:24 ` [PULL 03/27] target/i386: do not consult nonexistent host leaves Paolo Bonzini
2022-05-12 17:24 ` [PULL 04/27] checkpatch: fix g_malloc check Paolo Bonzini
2022-05-12 17:24 ` [PULL 05/27] meson: Make mremap() detecting works correctly Paolo Bonzini
2022-05-12 17:24 ` [PULL 06/27] hw/xen/xen_pt: Confine igd-passthrough-isa-bridge to XEN Paolo Bonzini
2022-05-12 17:24 ` [PULL 07/27] hw/xen/xen_pt: Resolve igd_passthrough_isa_bridge_create() indirection Paolo Bonzini
2022-05-12 17:24 ` [PULL 08/27] tests/qtest/libqos/pci: Introduce pio_limit Paolo Bonzini
2022-05-12 17:24 ` [PULL 09/27] tests/qtest/libqos: Skip hotplug tests if pci root bus is not hotpluggable Paolo Bonzini
2022-05-12 17:24 ` [PULL 10/27] tests/qtest/libqos: Add generic pci host bridge in arm-virt machine Paolo Bonzini
2022-05-12 17:24 ` [PULL 11/27] machine: use QAPI struct for boot configuration Paolo Bonzini
2022-05-12 17:24 ` [PULL 12/27] machine: add boot compound property Paolo Bonzini
2022-05-12 17:24 ` [PULL 13/27] machine: add mem " Paolo Bonzini
2022-06-13 13:42 ` Markus Armbruster
2022-08-05 9:30 ` Regression in -readconfig [memory] size (was: [PULL 13/27] machine: add mem compound property) Markus Armbruster
2022-08-05 9:42 ` Paolo Bonzini
2022-08-05 9:51 ` Daniel P. Berrangé [this message]
2022-05-12 17:24 ` [PULL 14/27] machine: make memory-backend a link property Paolo Bonzini
2022-05-12 17:24 ` [PULL 15/27] machine: move more memory validation to Machine object Paolo Bonzini
2022-05-12 17:24 ` [PULL 16/27] slirp: bump submodule past 4.7 release Paolo Bonzini
2022-05-12 17:24 ` [PULL 17/27] net: slirp: introduce a wrapper struct for QemuTimer Paolo Bonzini
2022-05-12 17:24 ` [PULL 18/27] net: slirp: switch to slirp_new Paolo Bonzini
2022-05-12 17:24 ` [PULL 19/27] net: slirp: add support for CFI-friendly timer API Paolo Bonzini
2022-05-12 17:24 ` [PULL 20/27] net: slirp: allow CFI with libslirp >= 4.7 Paolo Bonzini
2022-05-12 17:24 ` [PULL 21/27] coroutine-lock: qemu_co_queue_next is a coroutine-only qemu_co_enter_next Paolo Bonzini
2022-05-12 17:25 ` [PULL 22/27] coroutine-lock: introduce qemu_co_queue_enter_all Paolo Bonzini
2022-05-12 17:25 ` [PULL 23/27] coroutine-lock: qemu_co_queue_restart_all is a coroutine-only qemu_co_enter_all Paolo Bonzini
2022-05-12 17:25 ` [PULL 24/27] vhost-backend: do not depend on CONFIG_VHOST_VSOCK Paolo Bonzini
2022-05-12 17:25 ` [PULL 25/27] meson: link libpng independent of vnc Paolo Bonzini
2022-05-12 17:25 ` [PULL 26/27] vl: make machine type deprecation a warning Paolo Bonzini
2022-05-12 17:25 ` [PULL 27/27] vmxcap: add tertiary execution controls Paolo Bonzini
2022-05-12 21:14 ` [PULL 00/27] Misc patches for 2022-05-12 Richard Henderson
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