tcg/optimize: Propagate sign info for setcond

The result is either 0 or 1, which means that we have
a 2 bit signed result, and thus 62 bits of sign.
For clarity, use the smask_from_zmask function.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Propagate sign info for logical operations

Sign repetitions are perforce all identical, whether they are 1 or 0.
Bitwise operations preserve the relative quantity of the repetitions.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Optimize sign extensions

Certain targets, like riscv, produce signed 32-bit results.
This can lead to lots of redundant extensions as values are
manipulated.

Begin by tracking only the obvious sign-extensions, and
converting them to simple copies when possible.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Use fold_xx_to_i for rem

Recognize the constant function for remainder.

Suggested-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Use fold_xi_to_x for div

Recognize the identity function for division.

Suggested-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Use fold_xi_to_x for mul

Recognize the identity function for low-part multiply.

Suggested-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Use fold_xx_to_i for orc

Recognize the constant function for or-complement.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Stop forcing z_mask to "garbage" for 32-bit values

This "garbage" setting pre-dates the addition of the type
changing opcodes INDEX_op_ext_i32_i64, INDEX_op_extu_i32_i64,
and INDEX_op_extr{l,h}_i64_i32.

So now we have a definitive points at which to adjust z_mask
to eliminate such bits from the 32-bit operands.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Extend call args using the correct opcodes

Pretending that the source is i64 when it is in fact i32 is
incorrect; we have type-changing opcodes that must be used.
This bug trips up the subsequent change to the optimizer.

Fixes: 4f2331e5b67a
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Sink commutative operand swapping into fold functions

Most of these are handled by creating a fold_const2_commutative
to handle all of the binary operators.  The rest were already
handled on a case-by-case basis in the switch, and have their
own fold function in which to place the call.

We now have only one major switch on TCGOpcode.

Introduce NO_DEST and a block comment for swap_commutative in
order to make the handling of brcond and movcond opcodes cleaner.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Expand fold_addsub2_i32 to 64-bit ops

Rename to fold_addsub2.
Use Int128 to implement the wider operation.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Expand fold_mulu2_i32 to all 4-arg multiplies

Rename to fold_multiply2, and handle muls2_i32, mulu2_i64,
and muls2_i64.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_masks

Move all of the known-zero optimizations into the per-opcode
functions.  Use fold_masks when there is a possibility of the
result being determined, and simply set ctx->z_mask otherwise.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_ix_to_i

Pull the "op r, 0, b => movi r, 0" optimization into a function,
and use it in fold_shift.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_xi_to_x

Pull the "op r, a, i => mov r, a" optimization into a function,
and use them in the outer-most logical operations.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_sub_to_neg

Even though there is only one user, place this more complex
conversion into its own helper.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_to_not

Split out the conditional conversion from a more complex logical
operation to a simple NOT.  Create a couple more helpers to make
this easy for the outer-most logical operations.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Add type to OptContext

Compute the type of the operation early.

There are at least 4 places that used a def->flags ladder
to determine the type of the operation being optimized.

There were two places that assumed !TCG_OPF_64BIT means
TCG_TYPE_I32, and so could potentially compute incorrect
results for vector operations.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_xi_to_i

Pull the "op r, a, 0 => movi r, 0" optimization into a function,
and use it in the outer opcode fold functions.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_xx_to_x

Pull the "op r, a, a => mov r, a" optimization into a function,
and use it in the outer opcode fold functions.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_xx_to_i

Pull the "op r, a, a => movi r, 0" optimization into a function,
and use it in the outer opcode fold functions.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_mov

This is the final entry in the main switch that was in a
different form.  After this, we have the option to convert
the switch into a function dispatch table.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_dup, fold_dup2

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_bswap

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_count_zeros

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_deposit

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_extract, fold_sextract

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_extract2

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_movcond

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_addsub2_i32

Add two additional helpers, fold_add2_i32 and fold_sub2_i32
which will not be simple wrappers forever.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_mulu2_i32

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_setcond

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_brcond

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_brcond2

Reduce some code duplication by folding the NE and EQ cases.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_setcond2

Reduce some code duplication by folding the NE and EQ cases.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_const{1,2}

Split out a whole bunch of placeholder functions, which are
currently identical.  That won't last as more code gets moved.

Use CASE_32_64_VEC for some logical operators that previously
missed the addition of vectors.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_mb, fold_qemu_{ld,st}

This puts the separate mb optimization into the same framework
as the others.  While fold_qemu_{ld,st} are currently identical,
that won't last as more code gets moved.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Use a boolean to avoid a mass of continues

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out finish_folding

Copy z_mask into OptContext, for writeback to the
first output within the new function.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Return true from tcg_opt_gen_{mov,movi}

This will allow callers to tail call to these functions
and return true indicating processing complete.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Change fail return for do_constant_folding_cond*

Return -1 instead of 2 for failure, so that we can
use comparisons against 0 for all cases.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Drop nb_oargs, nb_iargs locals

Rather than try to keep these up-to-date across folding,
re-read nb_oargs at the end, after re-reading the opcode.

A couple of asserts need dropping, but that will take care
of itself as we split the function further.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out fold_call

Calls are special in that they have a variable number
of arguments, and need to be able to clobber globals.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out copy_propagate

Continue splitting tcg_optimize.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out init_arguments

There was no real reason for calls to have separate code here.
Unify init for calls vs non-calls using the call path, which
handles TCG_CALL_DUMMY_ARG.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Move prev_mb into OptContext

This will expose the variable to subroutines that
will be broken out of tcg_optimize.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Change tcg_opt_gen_{mov,movi} interface

Adjust the interface to take the OptContext parameter instead
of TCGContext or both.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Remove do_default label

Break the final cleanup clause out of the main switch
statement.  When fully folding an opcode to mov/movi,
use "continue" to process the next opcode, else break
to fall into the final cleanup.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Split out OptContext

Provide what will become a larger context for splitting
the very large tcg_optimize function.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize: Rename "mask" to "z_mask"

Prepare for tracking different masks by renaming this one.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

host-utils: add unit tests for divu128/divs128

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211025191154.350831-5-luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

host-utils: add 128-bit quotient support to divu128/divs128

These will be used to implement new decimal floating point
instructions from Power ISA 3.1.

The remainder is now returned directly by divu128/divs128,
freeing up phigh to receive the high 64 bits of the quotient.

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211025191154.350831-4-luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

host-utils: move udiv_qrnnd() to host-utils

Move udiv_qrnnd() from include/fpu/softfloat-macros.h to host-utils,
so it can be reused by divu128().

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211025191154.350831-3-luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

host-utils: move checks out of divu128/divs128

In preparation for changing the divu128/divs128 implementations
to allow for quotients larger than 64 bits, move the div-by-zero
and overflow checks to the callers.

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211025191154.350831-2-luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

qemu/int128: Add int128_{not,xor}

Addition of not and xor on 128-bit integers.

Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Co-authored-by: Fabien Portas <fabien.portas@grenoble-inp.org>
Message-Id: <20211025122818.168890-3-frederic.petrot@univ-grenoble-alpes.fr>
[rth: Split out logical operations.]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge remote-tracking branch 'remotes/cschoenebeck/tags/pull-9p-20211027' into staging

9pfs: performance fix and cleanup

* First patch fixes suboptimal I/O performance on guest due to previously
  incorrect block size being transmitted to 9p client.

* Subsequent patches are cleanup ones intended to reduce code complexity.

* remotes/cschoenebeck/tags/pull-9p-20211027:
  9pfs: use P9Array in v9fs_walk()
  9pfs: make V9fsPath usable via P9Array API
  9pfs: make V9fsString usable via P9Array API
  fsdev/p9array.h: check scalar type in P9ARRAY_NEW()
  9pfs: introduce P9Array
  9pfs: simplify blksize_to_iounit()
  9pfs: deduplicate iounit code
  9pfs: fix wrong I/O block size in Rgetattr

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

Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-10-27' into staging

QAPI patches patches for 2021-10-27

# gpg: Signature made Wed 27 Oct 2021 08:21:54 AM PDT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]

* remotes/armbru/tags/pull-qapi-2021-10-27:
  qapi: Implement deprecated-input={reject,crash} for enum values
  qapi: Move compat policy from QObject to generic visitor
  qapi: Add feature flags to enum members
  qapi: Enable enum member introspection to show more than name
  qapi: Improve input_type_enum()'s error message

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

qapi: Implement deprecated-input={reject,crash} for enum values

This copies the code implementing the policy from qapi/qmp-dispatch.c
to qapi/qobject-input-visitor.c.  Tolerable, but if we acquire more
copies, we should look into factoring them out.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Message-Id: <20211025042405.3762351-5-armbru@redhat.com>

qapi: Move compat policy from QObject to generic visitor

The next commit needs to access compat policy from the generic visitor
core.  Move it there from qobject input and output visitor.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20211025042405.3762351-4-armbru@redhat.com>

qapi: Add feature flags to enum members

This is quite similar to commit 84ab008687 "qapi: Add feature flags to
struct members", only for enums instead of structs.

Special feature flag 'deprecated' is silently ignored there.  This is
okay only because it will be implemented shortly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20211025042405.3762351-3-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>

qapi: Enable enum member introspection to show more than name

The next commit will add feature flags to enum members.  There's a
problem, though: query-qmp-schema shows an enum type's members as an
array of member names (SchemaInfoEnum member @values).  If it showed
an array of objects with a name member, we could simply add more
members to these objects.  Since it's just strings, we can't.

I can see three ways to correct this design mistake:

1. Do it the way we should have done it, plus compatibility goo.

   We want a ['SchemaInfoEnumMember'] member in SchemaInfoEnum.  Since
   changing @values would be a compatibility break, add a new member
   @members instead.

   @values is now redundant.  In my testing, output of
   qemu-system-x86_64's query-qmp-schema grows by 11% (18.5KiB).

   We can deprecate @values now and drop it later.  This will break
   outmoded clients.  Well-behaved clients such as libvirt are
   expected to break cleanly.

2. Like 1, but omit "boring" elements of @member, and empty @member.

   @values does not become redundant.  @members augments it.  Somewhat
   cumbersome, but output of query-qmp-schema grows only as we make
   enum members non-boring.

   There is nothing to deprecate here.

3. Versioned query-qmp-schema.

   query-qmp-schema provides either @values or @members.  The QMP
   client can select which version it wants.  There is no redundant
   output.

   We can deprecate old versions and eventually drop them.  This will
   break outmoded clients.  Breaking cleanly is easier than for 1.

   While 1 and 2 operate within the common rules for compatible
   evolution apply (section "Compatibility considerations" in
   docs/devel/qapi-code-gen.rst), 3 bypasses them.  Attractive when
   operating within the rules is just too awkward.  Not the case here.

This commit implements 1.  Libvirt developers prefer it.

Deprecate @values in favour of @members.  Since query-qmp-schema
compatibility is pretty fundamental for management applications, an
extended grace period is advised.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Message-Id: <20211025042405.3762351-2-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>

qapi: Improve input_type_enum()'s error message

The error message claims the parameter is invalid:

    $ qemu-system-x86_64 -object qom-type=nonexistent
    qemu-system-x86_64: -object qom-type=nonexistent: Invalid parameter 'nonexistent'

What's wrong is actually the *value* 'nonexistent'.  Improve the
message to

    qemu-system-x86_64: -object qom-type=nonexistent: Parameter 'qom-type' does not accept value 'nonexistent'

Fixes: https://gitlab.com/qemu-project/qemu/-/issues/608
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211020180231.434071-1-armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>

9pfs: use P9Array in v9fs_walk()

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <90c65d1c1ca11c1b434bb981b1fc7966f7711c8f.1633097129.git.qemu_oss@crudebyte.com>

9pfs: make V9fsPath usable via P9Array API

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <79a0ddf8375f6c95f0565ef155a1bf1e9387664f.1633097129.git.qemu_oss@crudebyte.com>

9pfs: make V9fsString usable via P9Array API

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <ce9f7a0a63585dc27f4545c485109efbec1251da.1633097129.git.qemu_oss@crudebyte.com>

fsdev/p9array.h: check scalar type in P9ARRAY_NEW()

Make sure at compile time that the scalar type of the array
requested to be created via P9ARRAY_NEW() matches the scalar
type of the passed auto reference variable (unique pointer).

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <c1965e2a096835dc9e1d4d659dfb15d96755cbe0.1633097129.git.qemu_oss@crudebyte.com>

9pfs: introduce P9Array

Implements deep auto free of arrays while retaining common C-style
squared bracket access. Main purpose of this API is to get rid of
error prone individual array deallocation pathes in user code, i.e.
turning something like this:

  void doSomething(size_t n) {
      Foo *foos = malloc(n * sizeof(Foo));
      for (...) {
          foos[i].s = malloc(...);
          if (...) {
              goto out;
          }
      }
  out:
      if (...) {
          for (...) {
              /* deep deallocation */
              free(foos[i].s);
          }
          /* array deallocation */
          free(foos);
      }
  }

into something more simple and safer like:

  void doSomething(size_t n) {
      P9ARRAY_REF(Foo) foos = NULL;
      P9ARRAY_NEW(Foo, foos, n);
      for (...) {
          foos[i].s = malloc(...);
          if (...) {
              return; /* array auto freed here */
          }
      }
      /* array auto freed here */
  }

Unlike GArray, P9Array does not require special macros, function
calls or struct member dereferencing to access the individual array
elements:

  C-array = P9Array:   vs.  GArray:

  for (...) {           |   for (...) {
      ... = arr[i].m;   |       ... = g_array_index(arr, Foo, i).m;
      arr[i].m = ... ;  |       g_array_index(arr, Foo, i).m = ... ;
  }                     |   }

So existing C-style array code can be retained with only very little
changes; basically limited to replacing array allocation call and of
course removing individual array deallocation pathes.

In this initial version P9Array only supports the concept of unique
pointers, i.e. it does not support reference counting. The array (and
all dynamically allocated memory of individual array elements) is auto
freed once execution leaves the scope of the reference variable (unique
pointer) associated with the array.

Internally a flex array struct is used in combination with macros
spanned over a continuous memory space for both the array's meta data
(private) and the actual C-array user data (public):

  struct P9Array##scalar_type {
    size_t len;            /* private, hidden from user code */
    scalar_type first[];   /* public, directly exposed to user code */
  };

Which has the advantage that the compiler automatically takes care
about correct padding, alignment and overall size for all scalar data
types on all systems and that the user space exposed pointer can
directly be translated back and forth between user space C-array
pointer and internal P9Array struct whenever needed, in a type-safe
manner.

This header file is released under MIT license, to allow this file
being used in other C-projects as well. The common QEMU license
GPL2+ might have construed a conflict for other projects.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <a954ef47b5ac26085a16c5c2aec8695374e0424d.1633097129.git.qemu_oss@crudebyte.com>

9pfs: simplify blksize_to_iounit()

Use QEMU_ALIGN_DOWN() macro to reduce code and to make it
more human readable.

Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <b84eb324d2ebdcc6f9c442c97b5b4d01eecb4f43.1632758315.git.qemu_oss@crudebyte.com>

9pfs: deduplicate iounit code

Remove redundant code that translates host fileystem's block
size into 9p client (guest side) block size.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <129bb71d5119e61d335f1e3107e472e4beea223a.1632758315.git.qemu_oss@crudebyte.com>

9pfs: fix wrong I/O block size in Rgetattr

When client sent a 9p Tgetattr request then the wrong I/O block
size value was returned by 9p server; instead of host file
system's I/O block size it should rather return an I/O block
size according to 9p session's 'msize' value, because the value
returned to client should be an "optimum" block size for I/O
(i.e. to maximize performance), it should not reflect the actual
physical block size of the underlying storage media.

The I/O block size of a host filesystem is typically 4k, so the
value returned was far too low for good 9p I/O performance.

This patch adds stat_to_iounit() with a similar approach as the
existing get_iounit() function.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1mT2Js-0000DW-OH@lizzy.crudebyte.com>

Merge remote-tracking branch 'remotes/dagrh/tags/pull-virtiofs-20211026' into staging

Virtiofsd pull 2021-10-26

New 'unsupported' feature for xattr mapping
  Good for hiding selinux

Plus some tidy ups and error handling.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
# gpg: Signature made Tue 26 Oct 2021 03:28:44 AM PDT
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]

* remotes/dagrh/tags/pull-virtiofs-20211026:
  virtiofsd: Error on bad socket group name
  virtiofsd: Add a helper to stop all queues
  virtiofsd: Add a helper to send element on virtqueue
  virtiofsd: Remove unused virtio_fs_config definition
  virtiofsd: xattr mapping add a new type "unsupported"

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

virtiofsd: Error on bad socket group name

Make the '--socket-group=' option fail if the group name is unknown:

./tools/virtiofsd/virtiofsd .... --socket-group=zaphod
vhost socket: unable to find group 'zaphod'

Reported-by: Xiaoling Gao <xiagao@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20211014122554.34599-1-dgilbert@redhat.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

virtiofsd: Add a helper to stop all queues

Use a helper to stop all the queues. Later in the patch series I am
planning to use this helper at one more place later in the patch series.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <20210930153037.1194279-6-vgoyal@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

virtiofsd: Add a helper to send element on virtqueue

We have open coded logic to take locks and push element on virtqueue at
three places. Add a helper and use it everywhere. Code is easier to read and
less number of lines of code.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <20210930153037.1194279-5-vgoyal@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

virtiofsd: Remove unused virtio_fs_config definition

"struct virtio_fs_config" definition seems to be unused in fuse_virtio.c.
Remove it.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <20210930153037.1194279-4-vgoyal@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

virtiofsd: xattr mapping add a new type "unsupported"

Right now for xattr remapping, we support types of "prefix", "ok" or "bad".
Type "bad" returns -EPERM on setxattr and hides xattr in listxattr. For
getxattr, mapping code returns -EPERM but getxattr code converts it to -ENODATA.

I need a new semantics where if an xattr is unsupported, then
getxattr()/setxattr() return -ENOTSUP and listxattr() should hide the xattr.
This is needed to simulate that security.selinux is not supported by
virtiofs filesystem and in that case client falls back to some default
label specified by policy.

So add a new type "unsupported" which returns -ENOTSUP on getxattr() and
setxattr() and hides xattrs in listxattr().

For example, one can use following mapping rule to not support
security.selinux xattr and allow others.

"-o xattrmap=/unsupported/all/security.selinux/security.selinux//ok/all///"

Suggested-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Message-Id: <YUt9qbmgAfCFfg5t@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Merge remote-tracking branch 'remotes/vivier/tags/trivial-branch-for-6.2-pull-request' into staging

Trivial patches pull request 20211023

# gpg: Signature made Sat 23 Oct 2021 11:30:42 AM PDT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]

* remotes/vivier/tags/trivial-branch-for-6.2-pull-request:
  analyze-migration.py: fix extract contents ('-x') errors
  analyze-migration.py: fix a long standing typo
  README: Fix some documentation URLs
  hw/nvram: Fix Memory Leak in Xilinx ZynqMP eFuse device
  hw/nvram: Fix Memory Leak in Xilinx Versal eFuse device
  hw/nvram: Fix Memory Leak in Xilinx eFuse QOM
  softmmu/physmem.c: Fix typo in comment
  MAINTAINERS: Add myself as reviewer of 'Machine core' API
  disas/nios2: Simplify endianess conversion
  disas/nios2: Fix style in print_insn_nios2()
  po: update turkish translation

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

analyze-migration.py: fix extract contents ('-x') errors

When we try to use 'analyze-migration.py -x' with python3,
we have the following errors:

  Traceback (most recent call last):
    File "scripts/analyze-migration.py", line 593, in <module>
      f.write(jsonenc.encode(dump.vmsd_desc))
  TypeError: a bytes-like object is required, not 'str'

  Traceback (most recent call last):
    File "scripts/analyze-migration.py", line 601, in <module>
      f.write(jsonenc.encode(dict))
  TypeError: a bytes-like object is required, not 'str'

This happens because the file 'f' is open in binary mode while
jsonenc.encode() returns a string.

The results are human-readable files, 'desc.json' and 'state.json',
so there is no reason to use the binary mode.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211015131645.501281-3-lvivier@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

analyze-migration.py: fix a long standing typo

The parameters of '-d' can be either 'state' or 'desc', not 'dump'
as it is reported in the error message.

Fixes: b17425701d66 ("Add migration stream analyzation script")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211015131645.501281-2-lvivier@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

README: Fix some documentation URLs

All of these pages live in the wiki, not in the main web site.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <163456470882.196333.17366490695504718038.stgit@bahia.huguette>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/nvram: Fix Memory Leak in Xilinx ZynqMP eFuse device

Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211015203532.2463705-4-tong.ho@xilinx.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/nvram: Fix Memory Leak in Xilinx Versal eFuse device

Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211015203532.2463705-3-tong.ho@xilinx.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/nvram: Fix Memory Leak in Xilinx eFuse QOM

Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211015203532.2463705-2-tong.ho@xilinx.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

softmmu/physmem.c: Fix typo in comment

Fix the comment to match what the code is doing, as explained in
the changelog of commit 86cf9e154632cb28d749db0ea47946fba8cf3f09
that introduced the change:

    Commit 9458a9a1df1a4c719e24512394d548c1fc7abd22 added synchronization
    of vCPU and migration operations through calling run_on_cpu operation.
    However, in replay mode this synchronization is unneeded, because
    I/O and vCPU threads are already synchronized.
    This patch disables such synchronization for record/replay mode.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <163429018454.1146856.3429437540871060739.stgit@bahia.huguette>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

MAINTAINERS: Add myself as reviewer of 'Machine core' API

In order to help Eduardo and Marcel with the machine
core API, add myself as reviewer. That will also help
me to learn more about this subsystem :)

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20211007093108.323223-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

Merge remote-tracking branch 'remotes/alistair23/tags/pull-riscv-to-apply-20211022-2' into staging

Fourth RISC-V PR for QEMU 6.2

 - Vector extension bug fixes
 - Bit manipulation extension bug fix
 - Support vhost-user and numa mem options on all boards
 - Rationalise XLEN and operand lengths
 - Bump the OpenTitan FPGA support
 - Remove the Ibex PLIC
 - General code cleanup

# gpg: Signature made Fri 22 Oct 2021 06:36:10 AM PDT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]

* remotes/alistair23/tags/pull-riscv-to-apply-20211022-2: (33 commits)
  hw/riscv: spike: Use MachineState::ram and MachineClass::default_ram_id
  hw/riscv: sifive_u: Use MachineState::ram and MachineClass::default_ram_id
  hw/riscv: sifive_e: Use MachineState::ram and MachineClass::default_ram_id
  hw/riscv: shakti_c: Use MachineState::ram and MachineClass::default_ram_id
  hw/riscv: opentitan: Use MachineState::ram and MachineClass::default_ram_id
  hw/riscv: microchip_pfsoc: Use MachineState::ram and MachineClass::default_ram_id
  hw/intc: sifive_plic: Cleanup the irq_request function
  hw/intc: sifive_plic: Cleanup the realize function
  hw/intc: sifive_plic: Move the properties
  hw/intc: Remove the Ibex PLIC
  hw/riscv: opentitan: Update to the latest build
  target/riscv: Compute mstatus.sd on demand
  target/riscv: Use riscv_csrrw_debug for cpu_dump
  target/riscv: Use gen_shift*_per_ol for RVB, RVI
  target/riscv: Use gen_unary_per_ol for RVB
  target/riscv: Adjust trans_rev8_32 for riscv64
  target/riscv: Use gen_arith_per_ol for RVM
  target/riscv: Replace DisasContext.w with DisasContext.ol
  target/riscv: Replace is_32bit with get_xl/get_xlen
  target/riscv: Properly check SEW in amo_op
  ...

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

Merge remote-tracking branch 'remotes/kraxel/tags/seabios-20211022-pull-request' into staging

seabios: update to master branch snapshot.

# gpg: Signature made Fri 22 Oct 2021 05:14:00 AM PDT
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]

* remotes/kraxel/tags/seabios-20211022-pull-request:
  update seabios binaries
  update seabios to master branch snapshot

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

disas/nios2: Simplify endianess conversion

Since commit 12b6e9b27d4 ("disas: Clean up CPUDebug initialization")
the disassemble_info->bfd_endian enum is set for all targets in
target_disas(). We can directly call print_insn_nios2() and simplify.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210807110939.95853-3-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

disas/nios2: Fix style in print_insn_nios2()

We are going to modify this function, fix its style first.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210807110939.95853-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

po: update turkish translation

Message-Id: <lDpmNUjNrVETJ2QoHoYmSoRvKoEIVFbF4IZAa1R5PVzqPCTh7nmV_ERHQlgYtNJN1Ppagtvelbo4uhSihEd5bSqIxCvGQchEWVpP-ofn2kw=@protonmail.com>
Signed-off-by: Oğuz Ersen <oguzersen@protonmail.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
[lv,pb: s/K_opyala/_Kopyala/;s/Se_kmeleri/_Sekmeleri/]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

Merge remote-tracking branch 'remotes/clg/tags/pull-aspeed-20211022' into staging

Aspeed patches :

* New fp5280g2-bmc board (John)
* Small cleanup in Aspeed SMC model (Cedric)

# gpg: Signature made Fri 22 Oct 2021 12:55:18 AM PDT
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* remotes/clg/tags/pull-aspeed-20211022:
  speed/sdhci: Add trace events
  aspeed/smc: Use a container for the flash mmio address space
  aspeed: Add support for the fp5280g2-bmc board

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

Merge remote-tracking branch 'remotes/vivier-m68k/tags/q800-pull-request' into staging

Pull request Q800 20211022

GLUE updates for A/UX mode

# gpg: Signature made Fri 22 Oct 2021 12:16:29 AM PDT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]

* remotes/vivier-m68k/tags/q800-pull-request:
  q800: drop 8-bit graphic_depth check for Apple 21 inch display
  q800: add NMI handler
  q800: wire up remaining IRQs in classic mode
  q800: route SONIC on-board Ethernet IRQ via nubus IRQ 9 in classic mode
  q800: wire up auxmode GPIO to GLUE
  mac_via: add GPIO for A/UX mode
  q800: use GLUE IRQ numbers instead of IRQ level for GLUE IRQs
  q800: move VIA1 IRQ from level 1 to level 6
  mac_via: update comment for VIA1B_vMystery bit

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

hw/riscv: spike: Use MachineState::ram and MachineClass::default_ram_id

Using memory_region_init_ram(), which can't possibly handle vhost-user,
and can't work as expected with '-numa node,memdev' options.

Use MachineState::ram instead of manually initializing RAM memory
region, as well as by providing MachineClass::default_ram_id to
opt in to memdev scheme.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20211020014112.7336-7-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv: sifive_u: Use MachineState::ram and MachineClass::default_ram_id

Using memory_region_init_ram(), which can't possibly handle vhost-user,
and can't work as expected with '-numa node,memdev' options.

Use MachineState::ram instead of manually initializing RAM memory
region, as well as by providing MachineClass::default_ram_id to
opt in to memdev scheme.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20211020014112.7336-6-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv: sifive_e: Use MachineState::ram and MachineClass::default_ram_id

Using memory_region_init_ram(), which can't possibly handle vhost-user,
and can't work as expected with '-numa node,memdev' options.

Use MachineState::ram instead of manually initializing RAM memory
region, as well as by providing MachineClass::default_ram_id to
opt in to memdev scheme.

While at it add check for user supplied RAM size and error out if it
mismatches board expected value.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20211020014112.7336-5-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv: shakti_c: Use MachineState::ram and MachineClass::default_ram_id

Using memory_region_init_ram(), which can't possibly handle vhost-user,
and can't work as expected with '-numa node,memdev' options.

Use MachineState::ram instead of manually initializing RAM memory
region, as well as by providing MachineClass::default_ram_id to
opt in to memdev scheme.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20211020014112.7336-4-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv: opentitan: Use MachineState::ram and MachineClass::default_ram_id

Using memory_region_init_ram(), which can't possibly handle vhost-user,
and can't work as expected with '-numa node,memdev' options.

Use MachineState::ram instead of manually initializing RAM memory
region, as well as by providing MachineClass::default_ram_id to
opt in to memdev scheme.

While at it add check for user supplied RAM size and error out if it
mismatches board expected value.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20211020014112.7336-3-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv: microchip_pfsoc: Use MachineState::ram and MachineClass::default_ram_id

Using memory_region_init_ram(), which can't possibly handle vhost-user,
and can't work as expected with '-numa node,memdev' options.

Use MachineState::ram instead of manually initializing RAM memory
region, as well as by providing MachineClass::default_ram_id to
opt in to memdev scheme.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20211020014112.7336-2-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/intc: sifive_plic: Cleanup the irq_request function

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 4200da222a65c89ed1ba35f754dcca7fdd9f08d6.1634524691.git.alistair.francis@wdc.com

hw/intc: sifive_plic: Cleanup the realize function

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: b94c098cb221e744683349b1ac794c23102ef471.1634524691.git.alistair.francis@wdc.com