tcg: Remove TCG_TARGET_HAS_goto_ptr

Since 6eea04347eb6, all tcg backends support goto_ptr.
Remove the conditional, making support mandatory.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Log tb->cflags with -d exec

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Split out log_cpu_exec

Split out CPU_LOG_EXEC and CPU_LOG_TB_CPU logging from
cpu_tb_exec to a new function.  Perform only one pc
range check after a combined mask check.

Use the new function in lookup_tb_ptr.  This enables
CPU_LOG_TB_CPU between indirectly chained tbs.

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

accel/tcg: Move tb_lookup to cpu-exec.c

Now that we've moved helper_lookup_tb_ptr, the only user
of tb-lookup.h is cpu-exec.c; merge the contents in.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Move helper_lookup_tb_ptr to cpu-exec.c

This will allow additional code sharing.
No functional change.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/i386: Use cpu_breakpoint_test in breakpoint_handler

The loop is performing a simple boolean test for the existence
of a BP_CPU breakpoint at EIP.  Plus it gets the iteration wrong,
if we happen to have a BP_GDB breakpoint at the same address.

We have a function for this: cpu_breakpoint_test.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20210620062317.1399034-1-richard.henderson@linaro.org>

tcg: Fix prologue disassembly

In tcg_region_prologue_set, we reset TCGContext.code_gen_ptr.
So do that after we've used it to dump the prologue contents.

Fixes: b0a0794a0f16
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge remote-tracking branch 'remotes/ehabkost-gl/tags/machine-next-pull-request' into staging

Machine queue, 2021-07-07

Deprecation:
* Deprecate pmem=on with non-DAX capable backend file
  (Igor Mammedov)

Feature:
* virtio-mem: vfio support (David Hildenbrand)

Cleanup:
* vmbus: Don't make QOM property registration conditional
  (Eduardo Habkost)

# gpg: Signature made Thu 08 Jul 2021 20:55:04 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost-gl/tags/machine-next-pull-request:
  vfio: Disable only uncoordinated discards for VFIO_TYPE1 iommus
  virtio-mem: Require only coordinated discards
  softmmu/physmem: Extend ram_block_discard_(require|disable) by two discard types
  softmmu/physmem: Don't use atomic operations in ram_block_discard_(disable|require)
  vfio: Support for RamDiscardManager in the vIOMMU case
  vfio: Sanity check maximum number of DMA mappings with RamDiscardManager
  vfio: Query and store the maximum number of possible DMA mappings
  vfio: Support for RamDiscardManager in the !vIOMMU case
  virtio-mem: Implement RamDiscardManager interface
  virtio-mem: Don't report errors when ram_block_discard_range() fails
  virtio-mem: Factor out traversing unplugged ranges
  memory: Helpers to copy/free a MemoryRegionSection
  memory: Introduce RamDiscardManager for RAM memory regions
  Deprecate pmem=on with non-DAX capable backend file
  vmbus: Don't make QOM property registration conditional

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

util/guest-random: Fix size arg to tail memcpy

We know that in the body of this if statement i is less than len, so
we really should be copying len - i bytes not i - len bytes.

Fix this typo.

Fixes: 8d8404f1564 ("util: Add qemu_guest_getrandom and associated routines")
Signed-off-by: Mark Nelson <mdnelson8@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210709120600.11080-1-mdnelson8@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

migration: fix typo in mig_throttle_guest_down comment

Fixes commit 3d0684b2ad82a5dde68e3f08b0d7786dccaf619c ("ram: Update
all functions comments")

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210708162159.18045-1-olaf@aepfle.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

target/xtensa/xtensa-semi: Fix compilation problem on Haiku

The errno numbers are very large on Haiku, so the linking currently
fails there with a "final link failed: memory exhausted" error
message. We should not use the errno number as array indexes here,
thus convert the code to a switch-case statement instead. A clever
compiler should be able to optimize this code in a similar way
anway.

Reported-by: Richard Zak <richard.j.zak@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210706081822.1316551-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/virtio: Document *_should_notify() are called within rcu_read_lock()

Such comments make reviewing this file somehow easier.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210523094040.3516968-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

misc: Remove redundant new line in perror()

Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210706094433.1766952-1-lizhijian@cn.fujitsu.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

virtiofsd: Add missing newline in error message

Signed-off-by: Hubert Jasudowicz <hubert.jasudowicz@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <e5914ad202a13e9c1bc2a5efa267ff3bd4f48db6.1625173475.git.hubert.jasudowicz@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

misc: Fix "havn't" typo

Fix "havn't (make)" -> "haven't (made)" typo.

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210629051400.2573253-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

memory: Display MemoryRegion name in read/write ops trace events

MemoryRegion names is cached on first call to memory_region_name(),
so displaying the name is trace events is cheap. Add it for read /
write ops.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210307074833.143106-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

qemu-option: Drop dead assertion

Commit c6ecec43b2 "qemu-option: Check return value instead of @err
where convenient" simplified

    opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1,
                            &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return NULL;
    }

to

    opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1, errp);
    if (!opts) {
        return NULL;
    }

but neglected to delete

    assert(opts != NULL);

Do that now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210610085026.436081-1-armbru@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

target/xtensa: Use translator_use_goto_tb

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

target/tricore: Use tcg_gen_lookup_and_goto_ptr

The non-single-step case of gen_goto_tb may use
tcg_gen_lookup_and_goto_ptr to indirectly chain.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/tricore: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sparc: Use translator_use_goto_tb

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

target/sh4: Use translator_use_goto_tb

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

target/s390x: Remove use_exit_tb

We have not needed to end a TB for I/O since ba3e7926691
("icount: clean up cpu_can_io at the entry to the block").

In use_goto_tb, the check for singlestep_enabled is in the
generic translator_use_goto_tb.  In s390x_tr_tb_stop, the
check for singlestep_enabled is in the preceding do_debug test.

Which leaves only FLAG_MASK_PER: fold that test alone into
the two callers of use_exit tb.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Use translator_use_goto_tb

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/rx: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

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

target/riscv: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/ppc: Use translator_use_goto_tb

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

target/openrisc: Use translator_use_goto_tb

Reorder the control statements to allow using the page boundary
check from translator_use_goto_tb().

Reviewed-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/nios2: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

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

target/mips: Fix missing else in gen_goto_tb

Do not emit dead code for the singlestep_enabled case,
after having exited the TB with a debug exception.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

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

target/microblaze: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

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

target/m68k: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

Acked-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/i386: Use translator_use_goto_tb

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

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

target/hppa: Use translator_use_goto_tb

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

target/cris: Use translator_use_goto_tb

The test for singlestepping is done in translator_use_goto_tb,
so we may elide it from cris_tr_tb_stop.

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

target/avr: Mark some helpers noreturn

All of these helpers end with cpu_loop_exit.

Reviewed-by: Michael Rolnik <mrolnik@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/avr: Use translator_use_goto_tb

Single stepping is not the only reason not to use goto_tb.
If goto_tb is disallowed, and single-stepping is not enabled,
then use tcg_gen_lookup_and_goto_tb to indirectly chain.

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

target/arm: Use translator_use_goto_tb for aarch32

Just use translator_use_goto_tb directly at the one call site,
rather than maintaining a local wrapper.

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

target/arm: Use translator_use_goto_tb for aarch64

We have not needed to end a TB for I/O since ba3e7926691
("icount: clean up cpu_can_io at the entry to the block"),
and gdbstub singlestep is handled by the generic function.

Drop the unused 'n' argument to use_goto_tb.

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

target/arm: Use DISAS_TOO_MANY for ISB and SB

Using gen_goto_tb directly misses the single-step check.
Let the branch or debug exception be emitted by arm_tr_tb_stop.

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

target/alpha: Use translator_use_goto_tb

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

target/alpha: Remove in_superpage

The number of links across (normal) pages using this is low,
and it will shortly violate the contract for breakpoints.

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

target/alpha: Remove use_exit_tb

We have not needed to end a TB for I/O since ba3e7926691
("icount: clean up cpu_can_io at the entry to the block").
We do not need to use exit_tb for singlestep, which only
means generate one insn per TB.

Which leaves only singlestep_enabled, which means raise a
debug trap after every TB, which does not use exit_tb,
which would leave the function mis-named.

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

accel/tcg: Introduce translator_use_goto_tb

Add a generic version of the common use_goto_tb test.

Various targets avoid the page crossing test for CONFIG_USER_ONLY,
but that is wrong: mmap and mprotect can change page permissions.

Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Move tb_phys_invalidate_count to tb_ctx

We can call do_tb_phys_invalidate from an iocontext, which has
no per-thread tcg_ctx.  Move this to tb_ctx, which is global.
The actual update still takes place with a lock held, so only
an atomic set is required, not an atomic increment.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/457
Tested-by: Viktor Ashirov <vashirov@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Bake tb_destroy() into tcg_region_tree

The function is called only at tcg_gen_code() when duplicated TBs
are translated by different threads, and when the tcg_region_tree
is reset. Bake it into the underlying GTree as its value destroy
function to unite these situations.
Also remove tcg_region_tree_traverse() which now becomes useless.

Signed-off-by: Liren Wei <lrwei@bupt.edu.cn>
Message-Id: <8dc352f08d038c4e7a1f5f56962398cdc700c3aa.1625404483.git.lrwei@bupt.edu.cn>
[rth: Name the new tb_tc_cmp parameter correctly.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Hoist tcg_tb_insert() up above tb_link_page()

TranslationBlocks not inserted into the corresponding region
tree shall be regarded as partially initialized objects, and
needs to be finalized first before inserting into QHT.

Signed-off-by: Liren Wei <lrwei@bupt.edu.cn>
Message-Id: <f9fc263f71e11b6308d8c1fbc0dd366bf4aeb532.1625404483.git.lrwei@bupt.edu.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Avoid including 'trace-tcg.h' in target translate.c

The root trace-events only declares a single TCG event:

  $ git grep -w tcg trace-events
  trace-events:115:# tcg/tcg-op.c
  trace-events:137:vcpu tcg guest_mem_before(TCGv vaddr, uint16_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"

and only a tcg/tcg-op.c uses it:

  $ git grep -l trace_guest_mem_before_tcg
  tcg/tcg-op.c

therefore it is pointless to include "trace-tcg.h" in each target
(because it is not used). Remove it.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210629050935.2570721-1-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Add separator in INDEX_op_call dump

We lost the ',' following the called function name.

Fixes: 3e92aa34434
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

meson: Use input/output for entitlements target

input/output parameters respect dependencies.

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210709012533.58262-1-akihiko.odaki@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

configure: allow the selection of alternate config in the build

While the default config works well enough it does end up enabling a
lot of stuff. For more minimal builds we can select a different list
of devices and let Kconfig work out what we want. For example:

  ../../configure --without-default-features \
    --target-list=arm-softmmu,aarch64-softmmu \
    --with-devices-aarch64=minimal

will override the aarch64-softmmu default set of devices with a more
minimal set of devices that just enables the virt and sbsa-ref models.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210707131744.26027-6-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

configs: rename default-configs to configs and reorganise

In preparation for offering variation to our build configurations lets
move everything and rename it to default. Common included base configs
are also renamed.

During the cleanup the stale usb.mak and pci.mak references were
removed from MAINTAINERS.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210707131744.26027-5-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/arm: move CONFIG_V7M out of default-devices

We currently select CONFIG_V7M for a bunch of our m-profile devices.
The last sticking point is translate.c which cannot be compiled
without expecting v7m support. Express this dependency in Kconfig
rather than in default devices as a stepping stone to a fully
configurable translate.c.

While we are at it we also need to select ARM_COMPATIBLE_SEMIHOSTING
as that is implied for M profile machines.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210707131744.26027-4-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/arm: add dependency on OR_IRQ for XLNX_VERSAL

We need this functionality due to:

    /* XRAM IRQs get ORed into a single line.  */
    object_initialize_child(OBJECT(s), "xram-irq-orgate",
                            &s->lpd.xram.irq_orgate, TYPE_OR_IRQ);

Fixes: a55b441b2ca ("hw/arm: versal: Add support for the XRAMs")
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210707131744.26027-3-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

meson: Introduce target-specific Kconfig

Add a target-specific Kconfig. We need the definitions in Kconfig so
the minikconf tool can verify they exits. However CONFIG_FOO is only
enabled for target foo via the meson.build rules.

Two architecture have a particularity, ARM and MIPS. As their
translators have been split you can potentially build a plain 32 bit
build along with a 64-bit version including the 32-bit subset.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210131111316.232778-6-f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210707131744.26027-2-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

meson: switch function tests from compilation to linking

Some tests for glibc functions cause compilation to emit warnings but
still succeed even if the function is not there.  Therefore, change
from cc.compiles to cc.links.

Reported-by: Richard Zak <richard.j.zak@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

vl: fix leak of qdict_crumple return value

Coverity reports that qemu_parse_config_group is returning without
unrefing the "crumpled" dictionary in case its top level item is a
list.  But actually the contract with qemu_record_config_group is
the same as for qemu_parse_config_group itself: if those function
need to stash the dictionary they get, they have to take a reference
themselves (currently this is never the case for either function).
Therefore, just add an unconditional qobject_unref(crumpled) to
qemu_parse_config_group.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

target/i386: fix exceptions for MOV to DR

Use raise_exception_ra (without error code) when raising the illegal
opcode operation; raise #GP when setting bits 63:32 of DR6 or DR7.

Move helper_get_dr to sysemu/ since it is a privileged instruction
that is not needed on user-mode emulators.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

target/i386: Added DR6 and DR7 consistency checks

DR6[63:32] and DR7[63:32] are reserved and need to be zero.
(AMD64 Architecture Programmer's Manual, V2, 15.5)

Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210705081802.18960-3-laramglazier@gmail.com>
[Ignore for 32-bit builds. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

target/i386: Added MSRPM and IOPM size check

The address of the last entry in the MSRPM and
in the IOPM must be smaller than the largest physical address.
(APM2 15.10-15.11)

Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210705081802.18960-2-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

monitor/tcg: move tcg hmp commands to accel/tcg, register them dynamically

One more little step towards modular tcg ...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-35-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

usb: build usb-host as module

Drop one more shared library dependency (libusb) from core qemu.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-34-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

monitor/usb: register 'info usbhost' dynamically

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-33-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

usb: drop usb_host_dev_is_scsi_storage hook

Introduce an usb device flag instead, set it when usb-host looks at the
device descriptors anyway.  Also set it for emulated storage devices,
for consistency.  Add an inline helper function to check the flag.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-32-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

monitor: allow register hmp commands

Allow commands having a NULL cmd pointer, add a function to set the
pointer later.  Use case: allow modules implement hmp commands.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-31-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

accel: build tcg modular

Build tcg accel ops as module.
Which is only a small fraction of tcg.
Also only x86 for now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-30-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

accel: add tcg module annotations

Add module annotations for tcg so autoloading works.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-29-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

accel: build qtest modular

Allow building accelerators as module.
Start with qtest as first user.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-28-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

accel: add qtest module annotations

Add module annotations for qtest so autoloading works.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-27-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

accel: autoload modules

Call module_object_class_by_name() instead of object_class_by_name()
for objects possibly implemented as module

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-26-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: hook up modules.h to docs build

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-25-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add module_obj() note to QOM docs

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-23-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add documentation for module sourcesets

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-22-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: target-specific module build infrastructure

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-21-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: check arch on qom lookup

With target-specific modules we can have multiple modules implementing
the same object.  Therefore we have to check the target arch on lookup
to find the correct module.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-20-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: check arch and block load on mismatch

Add module_allow_arch() to set the target architecture.
In case a module is limited to some arch verify arches
match and ignore the module if not.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-19-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add tracepoints

One for module load and one for qom type lookup.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-18-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: use modinfo for qemu opts load

Use module database to figure which module adds given QemuOpts group.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-17-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: use modinfo for qom load

Use module database to figure which module implements a given QOM type.
Drop hard-coded object list.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-16-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: use modinfo for dependencies

Use module database for module dependencies.
Drop hard-coded dependency list.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-15-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add block module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-14-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add s390x module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-13-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add ui module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-12-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add ccid module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-11-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add usb-redir module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-10-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add audio module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-9-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add chardev module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-8-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add virtio-gpu module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-7-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add qxl module annotations

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-6-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: check if all dependencies can be satisfied

Verifies if all dependencies are correctly listed in the modinfo.c too
and stop the builds if they're not.

Signed-off-by: Jose R. Ziviani <jziviani@suse.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-5-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: generate modinfo.c

Add script to generate C source with a small
database containing the module meta-data.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-4-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: collect module meta-data

Add script to collect the module meta-data from the source code,
store the results in *.modinfo files.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-3-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

modules: add modinfo macros

Add macros for module info annotations.

Instead of having that module meta-data stored in lists in util/module.c
place directly in the module source code.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-2-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

osdep: fix HAVE_BROKEN_SIZE_MAX case

While config-host.mak entries are expanded to "1" for compatibility with
create-config.sh, tests done directly in meson.build expand to the empty
string and cannot be placed to the right of the && operator.  Adjust
osdep.h after commit e46bd55d9c ("configure: convert HAVE_BROKEN_SIZE_MAX
to meson", 2021-07-06) changed the way HAVE_BROKEN_SIZE_MAX is defined.

Reported-by: Frederic Bezies <fredbezies@gmail.com>
Fixes: e46bd55d9c ("configure: convert HAVE_BROKEN_SIZE_MAX to meson", 2021-07-06)
Resolves: #463
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

meson: fix missing preprocessor symbols

While most libraries do not need a CONFIG_* symbol because the
"when:" clauses are enough, some do.  Add them back or stop
using them if possible.

In the case of libpmem, the statement to add the CONFIG_* symbol
was still in configure, but could not be triggered because it
checked for "no" instead of "disabled" (and it would be wrong anyway
since the test for the library has not been done yet).

Reported-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Fixes: 587d59d6cc ("configure, meson: convert virgl detection to meson", 2021-07-06)
Fixes: 83ef16821a ("configure, meson: convert libdaxctl detection to meson", 2021-07-06)
Fixes: e36e8c70f6 ("configure, meson: convert libpmem detection to meson", 2021-07-06)
Fixes: 53c22b68e3 ("configure, meson: convert liburing detection to meson", 2021-07-06)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

configure: fix libpmem configuration option

For some reason, libpmem option setting was set to work in an opposite
way (--enable-libpmem disabled it and vice versa). Fixing this so
configuration works properly.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Connor Kuehl <ckuehl@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Connor Kuehl <ckuehl@redhat.com>
Message-Id: <20210707075144.82717-1-mrezanin@redhat.com>
Fixes: e36e8c70f6 ("configure, meson: convert libpmem detection to meson", 2021-07-06)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

configure: fix libdaxctl options

For some reason, libdaxctl option setting was set to work in an opposite
way (--enable-libdaxctl disabled it and vice versa). Fixing this so
configuration works properly.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210707063124.81954-1-mrezanin@redhat.com>
Fixes: 83ef16821a ("configure, meson: convert libdaxctl detection to meson", 2021-07-06)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/intc: Improve formatting of MEMTX_ERROR guest error message

Add a space in the message printed when gicr_read*/gicr_write* returns
MEMTX_ERROR in arm_gicv3_redist.c.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210706211432.31902-1-rebecca@nuviainc.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target/arm: Correct the encoding of MDCCSR_EL0 and DBGDSCRint

Signed-off-by: Nick Hudson <hnick@vmware.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>