qapi: Relax doc string @name: description indentation rules

The QAPI schema doc comment language provides special syntax for
command and event arguments, struct and union members, alternate
branches, enumeration values, and features: descriptions starting with
"@name:".

By convention, we format them like this:

    # @name: Lorem ipsum dolor sit amet, consectetur adipiscing elit,
    #        sed do eiusmod tempor incididunt ut labore et dolore
    #        magna aliqua.

Okay for names as short as "name", but we have much longer ones.  Their
description gets squeezed against the right margin, like this:

    # @dirty-sync-missed-zero-copy: Number of times dirty RAM synchronization could
    #                               not avoid copying dirty pages. This is between
    #                               0 and @dirty-sync-count * @multifd-channels.
    #                               (since 7.1)

The description text is effectively just 50 characters wide.  Easy
enough to read, but can be cumbersome to write.

The awkward squeeze against the right margin makes people go beyond it,
which produces two undesirables: arguments about style, and descriptions
that are unnecessarily hard to read, like this one:

    # @postcopy-vcpu-blocktime: list of the postcopy blocktime per vCPU.  This is
    #                           only present when the postcopy-blocktime migration capability
    #                           is enabled. (Since 3.0)

We could instead format it like

    # @postcopy-vcpu-blocktime:
    # list of the postcopy blocktime per vCPU.  This is only present
    # when the postcopy-blocktime migration capability is
    # enabled. (Since 3.0)

or, since the commit before previous, like

    # @postcopy-vcpu-blocktime:
    #    list of the postcopy blocktime per vCPU.  This is only present
    #    when the postcopy-blocktime migration capability is
    #    enabled. (Since 3.0)

However, I'd rather have

    # @postcopy-vcpu-blocktime: list of the postcopy blocktime per vCPU.
    #     This is only present when the postcopy-blocktime migration
    #     capability is enabled.  (Since 3.0)

because this is how rST field and option lists work.

To get this, we need to let the first non-blank line after the
"@name:" line determine expected indentation.

This fills up the indentation pitfall mentioned in
docs/devel/qapi-code-gen.rst.  A related pitfall still exists.  Update
the text to show it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-14-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[Work around lack of walrus operator in Python 3.7 and older]

qapi: Rewrite parsing of doc comment section symbols and tags

To recognize a line starting with a section symbol and or tag, we
first split it at the first space, then examine the part left of the
space.  We can just as well examine the unsplit line, so do that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-13-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[Work around lack of walrus operator in Python 3.7 and older]

qapi: Fix argument description indentation stripping

When an argument's description starts on the line after the "#arg: "
line, indentation is stripped only from the description's first line,
as demonstrated by the previous commit.  Moreover, subsequent lines
with less indentation are not rejected.

Make the first line's indentation the expected indentation for the
remainder of the description.  This fixes indentation stripping, and
also requires at least that much indentation.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-12-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

tests/qapi-schema/doc-good: Improve argument description tests

Improve the comments to better describe what they test.

Cover argument description starting on a new line indented.  This
style isn't documented in docs/devel/qapi-code-gen.rst.  qapi-gen.py
accepts it, but messes up indentation: it's stripped from the first
line, not subsequent ones.  The next commit will fix this.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-11-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

tests/qapi-schema/doc-good: Improve a comment

The QAPI generator doesn't reject undocumented members and
features (yet).  doc-good.json covers this, with clear "is
undocumented" notes to signal intent.

Except for @Variant1 member @var1, where it's "(but no @var: line)".
Less clear.  Replace by "@var1 is undocumented".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-10-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

qapi/dump: Indent bulleted lists consistently

Documentation of dump-guest-memory contains two bulleted lists.  The
first one is indented, the second one isn't.  Delete the first one's
indentation for a more consistent look.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-9-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

qapi: Tidy up a slightly awkward TODO comment

MigrateSetParameters has a TODO comment sitting right behind its doc
comment.  I wrote it this way to keep it out of the manual, but that
reason is not obvious.

The previous commit (sphinx/qapidoc: Do not emit TODO sections into
user manuals) lets me move it into the doc comment as a TODO section.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-8-armbru@redhat.com>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

sphinx/qapidoc: Do not emit TODO sections into user manuals

QAPI doc comments are for QMP users: they go into the "QEMU QMP
Reference Manual" and the "QEMU Storage Daemon QMP Reference Manual".

The doc comment TODO sections are for somebody else, namely for the
people who can do: developers.  Do not emit them into the user
manuals.

This elides the following TODOs:

* SchemaInfoCommand

  # TODO: @success-response (currently irrelevant, because it's QGA, not QMP)

  This is a note to developers adding introspection to the guest
  agent.  It makes no sense to users.

* @query-hotpluggable-cpus

  # TODO: Better documentation; currently there is none.

  This is a reminder for developers.  It doesn't help users.

* @device_add

  # TODO: This command effectively bypasses QAPI completely due to its
  #       "additional arguments" business.  It shouldn't have been added to
  #       the schema in this form.  It should be qapified properly, or
  #       replaced by a properly qapified command.

  Likewise.

Eliding them is an improvement.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-7-armbru@redhat.com>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

Revert "qapi: BlockExportRemoveMode: move comments to TODO"

This reverts commit 97cd74f77231f3897838f8db32b659d94803e01f.

The next commit will hide TODO: sections.  See there for rationale.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-6-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

meson: Fix to make QAPI generator output depend on main.py

@qapi_gen_depends is missing scripts/qapi/main.py.  Fix that, and drop
a duplicate scripts/qapi/common.py.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-5-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

qapi: Fix crash on stray double quote character

When the lexer chokes on a stray character, its shows the characters
until the next structural character in the error message.  It uses a
regular expression to match a non-empty string of non-structural
characters.  Bug: the regular expression treats '"' as structural.
When the lexer chokes on '"', the match fails, and trips
must_match()'s assertion.  Fix the regular expression.

Fixes: 14c32795024c (qapi: Improve reporting of lexical errors)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-4-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

docs/devel/qapi-code-gen: Turn FIXME admonitions into comments

We have two FIXME notes.  These FIXMEs are for QAPI developers.  They
are not useful for QAPI schema developers.  They are marked up as
admonitions, which makes them look important in generated HTML.

Turn them into comments.  QAPI developers will still see them (they
read and write the .rst).  QAPI schema developers may still see
them (if they read the .rst instead of the generated .html), but "this
is just for QAPI developers" should be more obvious.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-3-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

docs/devel/qapi-code-gen: Clean up use of quotes a bit

Section "Definition documentation" uses both single and double quotes
around doc text snippets.  Stick to double quotes.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-2-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

Merge tag 'pull-loongarch-20230506' of https://gitlab.com/gaosong/qemu into staging

Add LoongArch LSX instructions.

# -----BEGIN PGP SIGNATURE-----
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# =gyVU
# -----END PGP SIGNATURE-----
# gpg: Signature made Sat 06 May 2023 07:18:03 AM BST
# gpg:                using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C  6C2C 40A2 FFF2 3926 3EDF

* tag 'pull-loongarch-20230506' of https://gitlab.com/gaosong/qemu: (45 commits)
  hw/intc: don't use target_ulong for LoongArch ipi
  target/loongarch: CPUCFG support LSX
  target/loongarch: Use {set/get}_gpr replace to cpu_fpr
  target/loongarch: Implement vldi
  target/loongarch: Implement vld vst
  target/loongarch: Implement vilvl vilvh vextrins vshuf
  target/loongarch: Implement vreplve vpack vpick
  target/loongarch: Implement vinsgr2vr vpickve2gr vreplgr2vr
  target/loongarch: Implement vbitsel vset
  target/loongarch: Implement vfcmp
  target/loongarch: Implement vseq vsle vslt
  target/loongarch: Implement LSX fpu fcvt instructions
  target/loongarch: Implement LSX fpu arith instructions
  target/loongarch: Implement vfrstp
  target/loongarch: Implement vbitclr vbitset vbitrev
  target/loongarch: Implement vpcnt
  target/loongarch: Implement vclo vclz
  target/loongarch: Implement vssrlrn vssrarn
  target/loongarch: Implement vssrln vssran
  target/loongarch: Implement vsrlrn vsrarn
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

hw/intc: don't use target_ulong for LoongArch ipi

The calling function is already working with hwaddr and uint64_t so
lets avoid bringing target_ulong in if we don't need to.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230404132711.2563638-1-alex.bennee@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>

target/loongarch: CPUCFG support LSX

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-45-gaosong@loongson.cn>

target/loongarch: Use {set/get}_gpr replace to cpu_fpr

Introduce set_fpr() and get_fpr() and remove cpu_fpr.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-44-gaosong@loongson.cn>

target/loongarch: Implement vldi

This patch includes:
- VLDI.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-43-gaosong@loongson.cn>

target/loongarch: Implement vld vst

This patch includes:
- VLD[X], VST[X];
- VLDREPL.{B/H/W/D};
- VSTELM.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-42-gaosong@loongson.cn>

target/loongarch: Implement vilvl vilvh vextrins vshuf

This patch includes:
- VILV{L/H}.{B/H/W/D};
- VSHUF.{B/H/W/D};
- VSHUF4I.{B/H/W/D};
- VPERMI.W;
- VEXTRINS.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-41-gaosong@loongson.cn>

target/loongarch: Implement vreplve vpack vpick

This patch includes:
- VREPLVE[I].{B/H/W/D};
- VBSLL.V, VBSRL.V;
- VPACK{EV/OD}.{B/H/W/D};
- VPICK{EV/OD}.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-40-gaosong@loongson.cn>

target/loongarch: Implement vinsgr2vr vpickve2gr vreplgr2vr

This patch includes:
- VINSGR2VR.{B/H/W/D};
- VPICKVE2GR.{B/H/W/D}[U];
- VREPLGR2VR.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-39-gaosong@loongson.cn>

target/loongarch: Implement vbitsel vset

This patch includes:
- VBITSEL.V;
- VBITSELI.B;
- VSET{EQZ/NEZ}.V;
- VSETANYEQZ.{B/H/W/D};
- VSETALLNEZ.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-38-gaosong@loongson.cn>

target/loongarch: Implement vfcmp

This patch includes:
- VFCMP.cond.{S/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-37-gaosong@loongson.cn>

target/loongarch: Implement vseq vsle vslt

This patch includes:
- VSEQ[I].{B/H/W/D};
- VSLE[I].{B/H/W/D}[U];
- VSLT[I].{B/H/W/D/}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-36-gaosong@loongson.cn>

target/loongarch: Implement LSX fpu fcvt instructions

This patch includes:
- VFCVT{L/H}.{S.H/D.S};
- VFCVT.{H.S/S.D};
- VFRINT[{RNE/RZ/RP/RM}].{S/D};
- VFTINT[{RNE/RZ/RP/RM}].{W.S/L.D};
- VFTINT[RZ].{WU.S/LU.D};
- VFTINT[{RNE/RZ/RP/RM}].W.D;
- VFTINT[{RNE/RZ/RP/RM}]{L/H}.L.S;
- VFFINT.{S.W/D.L}[U];
- VFFINT.S.L, VFFINT{L/H}.D.W.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-35-gaosong@loongson.cn>

target/loongarch: Implement LSX fpu arith instructions

This patch includes:
- VF{ADD/SUB/MUL/DIV}.{S/D};
- VF{MADD/MSUB/NMADD/NMSUB}.{S/D};
- VF{MAX/MIN}.{S/D};
- VF{MAXA/MINA}.{S/D};
- VFLOGB.{S/D};
- VFCLASS.{S/D};
- VF{SQRT/RECIP/RSQRT}.{S/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-34-gaosong@loongson.cn>

target/loongarch: Implement vfrstp

This patch includes:
- VFRSTP[I].{B/H}.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-33-gaosong@loongson.cn>

target/loongarch: Implement vbitclr vbitset vbitrev

This patch includes:
- VBITCLR[I].{B/H/W/D};
- VBITSET[I].{B/H/W/D};
- VBITREV[I].{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-32-gaosong@loongson.cn>

target/loongarch: Implement vpcnt

This patch includes:
- VPCNT.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-31-gaosong@loongson.cn>

target/loongarch: Implement vclo vclz

This patch includes:
- VCLO.{B/H/W/D};
- VCLZ.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-30-gaosong@loongson.cn>

target/loongarch: Implement vssrlrn vssrarn

This patch includes:
- VSSRLRN.{B.H/H.W/W.D};
- VSSRARN.{B.H/H.W/W.D};
- VSSRLRN.{BU.H/HU.W/WU.D};
- VSSRARN.{BU.H/HU.W/WU.D};
- VSSRLRNI.{B.H/H.W/W.D/D.Q};
- VSSRARNI.{B.H/H.W/W.D/D.Q};
- VSSRLRNI.{BU.H/HU.W/WU.D/DU.Q};
- VSSRARNI.{BU.H/HU.W/WU.D/DU.Q}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-29-gaosong@loongson.cn>

target/loongarch: Implement vssrln vssran

This patch includes:
- VSSRLN.{B.H/H.W/W.D};
- VSSRAN.{B.H/H.W/W.D};
- VSSRLN.{BU.H/HU.W/WU.D};
- VSSRAN.{BU.H/HU.W/WU.D};
- VSSRLNI.{B.H/H.W/W.D/D.Q};
- VSSRANI.{B.H/H.W/W.D/D.Q};
- VSSRLNI.{BU.H/HU.W/WU.D/DU.Q};
- VSSRANI.{BU.H/HU.W/WU.D/DU.Q}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-28-gaosong@loongson.cn>

target/loongarch: Implement vsrlrn vsrarn

This patch includes:
- VSRLRN.{B.H/H.W/W.D};
- VSRARN.{B.H/H.W/W.D};
- VSRLRNI.{B.H/H.W/W.D/D.Q};
- VSRARNI.{B.H/H.W/W.D/D.Q}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-27-gaosong@loongson.cn>

target/loongarch: Implement vsrln vsran

This patch includes:
- VSRLN.{B.H/H.W/W.D};
- VSRAN.{B.H/H.W/W.D};
- VSRLNI.{B.H/H.W/W.D/D.Q};
- VSRANI.{B.H/H.W/W.D/D.Q}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-26-gaosong@loongson.cn>

target/loongarch: Implement vsrlr vsrar

This patch includes:
- VSRLR[I].{B/H/W/D};
- VSRAR[I].{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-25-gaosong@loongson.cn>

target/loongarch: Implement vsllwil vextl

This patch includes:
- VSLLWIL.{H.B/W.H/D.W};
- VSLLWIL.{HU.BU/WU.HU/DU.WU};
- VEXTL.Q.D, VEXTL.QU.DU.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-24-gaosong@loongson.cn>

target/loongarch: Implement vsll vsrl vsra vrotr

This patch includes:
- VSLL[I].{B/H/W/D};
- VSRL[I].{B/H/W/D};
- VSRA[I].{B/H/W/D};
- VROTR[I].{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-23-gaosong@loongson.cn>

target/loongarch: Implement LSX logic instructions

This patch includes:
- V{AND/OR/XOR/NOR/ANDN/ORN}.V;
- V{AND/OR/XOR/NOR}I.B.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-22-gaosong@loongson.cn>

target/loongarch: Implement vmskltz/vmskgez/vmsknz

This patch includes:
- VMSKLTZ.{B/H/W/D};
- VMSKGEZ.B;
- VMSKNZ.B.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-21-gaosong@loongson.cn>

target/loongarch: Implement vsigncov

This patch includes:
- VSIGNCOV.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-20-gaosong@loongson.cn>

target/loongarch: Implement vexth

This patch includes:
- VEXTH.{H.B/W.H/D.W/Q.D};
- VEXTH.{HU.BU/WU.HU/DU.WU/QU.DU}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-19-gaosong@loongson.cn>

target/loongarch: Implement vsat

This patch includes:
- VSAT.{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-18-gaosong@loongson.cn>

target/loongarch: Implement vdiv/vmod

This patch includes:
- VDIV.{B/H/W/D}[U];
- VMOD.{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-17-gaosong@loongson.cn>

target/loongarch: Implement vmadd/vmsub/vmaddw{ev/od}

This patch includes:
- VMADD.{B/H/W/D};
- VMSUB.{B/H/W/D};
- VMADDW{EV/OD}.{H.B/W.H/D.W/Q.D}[U];
- VMADDW{EV/OD}.{H.BU.B/W.HU.H/D.WU.W/Q.DU.D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-16-gaosong@loongson.cn>

target/loongarch: Implement vmul/vmuh/vmulw{ev/od}

This patch includes:
- VMUL.{B/H/W/D};
- VMUH.{B/H/W/D}[U];
- VMULW{EV/OD}.{H.B/W.H/D.W/Q.D}[U];
- VMULW{EV/OD}.{H.BU.B/W.HU.H/D.WU.W/Q.DU.D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-15-gaosong@loongson.cn>

target/loongarch: Implement vmax/vmin

This patch includes:
- VMAX[I].{B/H/W/D}[U];
- VMIN[I].{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-14-gaosong@loongson.cn>

target/loongarch: Implement vadda

This patch includes:
- VADDA.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-13-gaosong@loongson.cn>

target/loongarch: Implement vabsd

This patch includes:
- VABSD.{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-12-gaosong@loongson.cn>

target/loongarch: Implement vavg/vavgr

This patch includes:
- VAVG.{B/H/W/D}[U];
- VAVGR.{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-11-gaosong@loongson.cn>

target/loongarch: Implement vaddw/vsubw

This patch includes:
- VADDW{EV/OD}.{H.B/W.H/D.W/Q.D}[U];
- VSUBW{EV/OD}.{H.B/W.H/D.W/Q.D}[U];
- VADDW{EV/OD}.{H.BU.B/W.HU.H/D.WU.W/Q.DU.D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-10-gaosong@loongson.cn>

target/loongarch: Implement vhaddw/vhsubw

This patch includes:
- VHADDW.{H.B/W.H/D.W/Q.D/HU.BU/WU.HU/DU.WU/QU.DU};
- VHSUBW.{H.B/W.H/D.W/Q.D/HU.BU/WU.HU/DU.WU/QU.DU}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-9-gaosong@loongson.cn>

target/loongarch: Implement vsadd/vssub

This patch includes:
- VSADD.{B/H/W/D}[U];
- VSSUB.{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-8-gaosong@loongson.cn>

target/loongarch: Implement vneg

This patch includes;
- VNEG.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-7-gaosong@loongson.cn>

target/loongarch: Implement vaddi/vsubi

This patch includes:
- VADDI.{B/H/W/D}U;
- VSUBI.{B/H/W/D}U.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-6-gaosong@loongson.cn>

target/loongarch: Implement vadd/vsub

This patch includes:
- VADD.{B/H/W/D/Q};
- VSUB.{B/H/W/D/Q}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-5-gaosong@loongson.cn>

target/loongarch: Add CHECK_SXE maccro for check LSX enable

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-4-gaosong@loongson.cn>

target/loongarch: meson.build support build LSX

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-3-gaosong@loongson.cn>

target/loongarch: Add LSX data type VReg

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-2-gaosong@loongson.cn>

Merge tag 'pull-tcg-20230505' of https://gitlab.com/rth7680/qemu into staging

softfloat: Fix the incorrect computation in float32_exp2
tcg: Remove compatability helpers for qemu ld/st
target/alpha: Remove TARGET_ALIGNED_ONLY
target/hppa: Remove TARGET_ALIGNED_ONLY
target/sparc: Remove TARGET_ALIGNED_ONLY
tcg: Cleanups preparing to unify calls to qemu_ld/st helpers

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# gpg: Signature made Fri 05 May 2023 10:23:33 PM BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-tcg-20230505' of https://gitlab.com/rth7680/qemu: (42 commits)
  tcg: Widen helper_*_st[bw]_mmu val arguments
  tcg: Introduce arg_slot_stk_ofs
  tcg: Replace REG_P with arg_loc_reg_p
  tcg: Move TCGLabelQemuLdst to tcg.c
  tcg/sparc64: Pass TCGType to tcg_out_qemu_{ld,st}
  tcg/sparc64: Drop is_64 test from tcg_out_qemu_ld data return
  tcg/s390x: Introduce HostAddress
  tcg/s390x: Pass TCGType to tcg_out_qemu_{ld,st}
  tcg/riscv: Rationalize args to tcg_out_qemu_{ld,st}
  tcg/riscv: Require TCG_TARGET_REG_BITS == 64
  tcg/ppc: Introduce HostAddress
  tcg/ppc: Rationalize args to tcg_out_qemu_{ld,st}
  tcg/mips: Rationalize args to tcg_out_qemu_{ld,st}
  tcg/loongarch64: Introduce HostAddress
  tcg/loongarch64: Rationalize args to tcg_out_qemu_{ld,st}
  tcg/arm: Introduce HostAddress
  tcg/arm: Rationalize args to tcg_out_qemu_{ld,st}
  tcg/aarch64: Introduce HostAddress
  tcg/aarch64: Rationalize args to tcg_out_qemu_{ld,st}
  tcg/i386: Introduce tcg_out_testi
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'pull-ppc-20230505' of https://gitlab.com/danielhb/qemu into staging

ppc patch queue for 2023-05-05:

This queue includes fixes for ppc and spapr emulation, a build fix for
the pseries machine and a new reviewer for ppc/spapr.

We're also carrying a Coverity fix for the sm501 display.

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# gpg:                using EDDSA key 17EBFF9923D01800AF2838193CD9CA96DE033164
# gpg:                issuer "danielhb413@gmail.com"
# gpg: Good signature from "Daniel Henrique Barboza <danielhb413@gmail.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 17EB FF99 23D0 1800 AF28  3819 3CD9 CA96 DE03 3164

* tag 'pull-ppc-20230505' of https://gitlab.com/danielhb/qemu:
  hw/ppc/Kconfig: NVDIMM is a hard requirement for the pseries machine
  tests: tcg: ppc64: Add tests for Vector Extract Mask Instructions
  tcg: ppc64: Fix mask generation for vextractdm
  MAINTAINERS: Adding myself in the list for ppc/spapr
  ppc: spapr: cleanup cr get/set with helpers.
  hw/display/sm501: Remove unneeded increment from loop

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'pw-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

Add PipeWire audio backend

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# gpg: Signature made Fri 05 May 2023 12:37:27 PM BST
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]

* tag 'pw-pull-request' of https://gitlab.com/marcandre.lureau/qemu:
  audio/pwaudio.c: Add Pipewire audio backend for QEMU

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'migration-20230505-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request (20230505 edition)

In this series:
- fix block_bitmap_mapping (juan)
- RDMA cleanup (juan)
- qemu file cleanup (juan)

Please apply.

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# gpg: Signature made Fri 05 May 2023 01:47:17 AM BST
# gpg:                using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [undefined]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* tag 'migration-20230505-pull-request' of https://gitlab.com/juan.quintela/qemu:
  qemu-file: Make ram_control_save_page() use accessors for rate_limit
  qemu-file: Make total_transferred an uint64_t
  qemu-file: remove shutdown member
  qemu-file: No need to check for shutdown in qemu_file_rate_limit
  migration: qemu_file_total_transferred() function is monotonic
  migration: max_postcopy_bandwidth is a size parameter
  migration/rdma: Check for postcopy sooner
  migration/rdma: It makes no sense to recive that flag without RDMA
  migration/rdma: We can calculate the rioc from the QEMUFile
  migration/rdma: simplify ram_control_load_hook()
  migration: Make RAM_SAVE_FLAG_HOOK a normal case entry
  migration: Rename xbzrle_enabled xbzrle_started
  migration: Put zero_pages in alphabetical order
  migration: Document all migration_stats
  migration/rdma: Don't pass the QIOChannelRDMA as an opaque
  migration: Fix block_bitmap_mapping migration

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Widen helper_*_st[bw]_mmu val arguments

While the old type was correct in the ideal sense, some ABIs require
the argument to be zero-extended.  Using uint32_t for all such values
is a decent compromise.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Introduce arg_slot_stk_ofs

Unify all computation of argument stack offset in one function.
This requires that we adjust ref_slot to be in the same units,
by adding max_reg_slots during init_call_layout.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Replace REG_P with arg_loc_reg_p

An inline function is safer than a macro, and REG_P
was rather too generic.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Move TCGLabelQemuLdst to tcg.c

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/sparc64: Pass TCGType to tcg_out_qemu_{ld,st}

We need to set this in TCGLabelQemuLdst, so plumb this
all the way through from tcg_out_op.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/sparc64: Drop is_64 test from tcg_out_qemu_ld data return

In tcg_canonicalize_memop, we remove MO_SIGN from MO_32 operations
with TCG_TYPE_I32.  Thus this is never set.  We already have an
identical test just above which does not include is_64

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/s390x: Introduce HostAddress

Collect the 3 potential parts of the host address into a struct.
Reorg tcg_out_qemu_{ld,st}_direct to use it.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/s390x: Pass TCGType to tcg_out_qemu_{ld,st}

We need to set this in TCGLabelQemuLdst, so plumb this
all the way through from tcg_out_op.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/riscv: Rationalize args to tcg_out_qemu_{ld,st}

Interpret the variable argument placement in the caller.  Pass data_type
instead of is64 -- there are several places where we already convert back
from bool to type.  Clean things up by using type throughout.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/riscv: Require TCG_TARGET_REG_BITS == 64

The port currently does not support "oversize" guests, which
means riscv32 can only target 32-bit guests.  We will soon be
building TCG once for all guests.  This implies that we can
only support riscv64.

Since all Linux distributions target riscv64 not riscv32,
this is not much of a restriction and simplifies the code.

The brcond2 and setcond2 opcodes are exclusive to 32-bit hosts,
so we can and should remove the stubs.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/ppc: Introduce HostAddress

Collect the parts of the host address into a struct.
Reorg tcg_out_qemu_{ld,st} to use it.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/ppc: Rationalize args to tcg_out_qemu_{ld,st}

Interpret the variable argument placement in the caller.  Pass data_type
instead of is64 -- there are several places where we already convert back
from bool to type.  Clean things up by using type throughout.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/mips: Rationalize args to tcg_out_qemu_{ld,st}

Interpret the variable argument placement in the caller.  There are
several places where we already convert back from bool to type.
Clean things up by using type throughout.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Introduce HostAddress

Collect the 2 parts of the host address into a struct.
Reorg tcg_out_qemu_{ld,st}_direct to use it.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/loongarch64: Rationalize args to tcg_out_qemu_{ld,st}

Interpret the variable argument placement in the caller.  Shift some
code around slightly to share more between softmmu and user-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/arm: Introduce HostAddress

Collect the parts of the host address, and condition, into a struct.
Merge tcg_out_qemu_*_{index,direct} and use it.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/arm: Rationalize args to tcg_out_qemu_{ld,st}

Interpret the variable argument placement in the caller.
Pass data_type instead of is_64.  We need to set this in
TCGLabelQemuLdst, so plumb this all the way through from tcg_out_op.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/aarch64: Introduce HostAddress

Collect the 3 potential parts of the host address into a struct.
Reorg tcg_out_qemu_{ld,st}_direct to use it.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/aarch64: Rationalize args to tcg_out_qemu_{ld,st}

Rename the 'ext' parameter 'data_type' to make the use clearer;
pass it to tcg_out_qemu_st as well to even out the interfaces.
Rename the 'otype' local 'addr_type' to make the use clearer.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/i386: Introduce tcg_out_testi

Split out a helper for choosing testb vs testl.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/i386: Drop r0+r1 local variables from tcg_out_tlb_load

Use TCG_REG_L[01] constants directly.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/i386: Introduce HostAddress

Collect the 4 potential parts of the host address into a struct.
Reorg tcg_out_qemu_{ld,st}_direct to use it.
Reorg guest_base handling to use it.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/i386: Generalize multi-part load overlap test

Test for both base and index; use datahi as a temporary, overwritten
by the final load.  Always perform the loads in ascending order, so
that any (user-only) fault sees the correct address.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/i386: Rationalize args to tcg_out_qemu_{ld,st}

Interpret the variable argument placement in the caller.  Pass data_type
instead of is64 -- there are several places where we already convert back
from bool to type.  Clean things up by using type throughout.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sparc: Remove TARGET_ALIGNED_ONLY

Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sparc: Use cpu_ld*_code_mmu

This passes on the memop as given as argument to
helper_ld_asi to the ultimate load primitive.

Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sparc: Use MO_ALIGN where required

Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa: Remove TARGET_ALIGNED_ONLY

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa: Use MO_ALIGN for system UNALIGN()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/alpha: Remove TARGET_ALIGNED_ONLY

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/alpha: Use MO_ALIGN where required

Mark all memory operations that are not already marked with UNALIGN.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/alpha: Use MO_ALIGN for system UNALIGN()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Remove compatability helpers for qemu ld/st

Remove the old interfaces with the implicit MemOp argument.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: David Hildenbrand <david@redhat.com>
Message-Id: <20230502135741.1158035-10-richard.henderson@linaro.org>

target/xtensa: Finish conversion to tcg_gen_qemu_{ld, st}_*

Convert away from the old interface with the implicit
MemOp argument.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20230502135741.1158035-9-richard.henderson@linaro.org>

target/sparc: Finish conversion to tcg_gen_qemu_{ld, st}_*

Convert away from the old interface with the implicit
MemOp argument.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230502135741.1158035-8-richard.henderson@linaro.org>

target/s390x: Finish conversion to tcg_gen_qemu_{ld, st}_*

Convert away from the old interface with the implicit
MemOp argument.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230502135741.1158035-7-richard.henderson@linaro.org>

target/mips: Finish conversion to tcg_gen_qemu_{ld,st}_*

Convert away from the old interface with the implicit
MemOp argument.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230502135741.1158035-6-richard.henderson@linaro.org>