Commit Graph

1202 Commits

Author SHA1 Message Date
Alex Bennée
d96bf49ba8 gdbstub: move chunks of user code into own files
The process was pretty similar to the softmmu move except we take the
time to split stuff between user.c and user-target.c to avoid as much
target specific compilation as possible. We also start to make use of
our shiny new header scheme so the user-only helpers can be included
without the rest of the exec/gsbstub.h cruft.

As before we split some functions into user and softmmu versions

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Message-Id: <20230302190846.2593720-12-alex.bennee@linaro.org>
Message-Id: <20230303025805.625589-12-richard.henderson@linaro.org>
2023-03-07 20:44:04 +00:00
Alex Bennée
548c96095d includes: move tb_flush into its own header
This aids subsystems (like gdbstub) that want to trigger a flush
without pulling target specific headers.

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

Message-Id: <20230302190846.2593720-8-alex.bennee@linaro.org>
Message-Id: <20230303025805.625589-8-richard.henderson@linaro.org>
2023-03-07 17:06:33 +00:00
Philippe Mathieu-Daudé
1c4517b8b6 gdbstub: Make syscall_complete/[gs]et_reg target-agnostic typedefs
Prototypes using gdb_syscall_complete_cb() or gdb_?et_reg_cb()
don't depend on "cpu.h", thus are not target-specific.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221214143659.62133-1-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230302190846.2593720-4-alex.bennee@linaro.org>
Message-Id: <20230303025805.625589-4-richard.henderson@linaro.org>
2023-03-07 17:06:23 +00:00
Richard Henderson
d136788f76 include/exec/gen-icount: Drop tcg_temp_free in gen_tb_start
Translators are no longer required to free tcg temporaries.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05 13:44:08 -08:00
Richard Henderson
2a196de15f accel/tcg: Remove translator_loop_temp_check
Finish removing tcg temp free accounting interfaces.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-05 13:44:07 -08:00
Peter Maydell
66577e9e1c virtio,pc,pci: features, cleanups, fixes
vhost-user support without ioeventfd
 word replacements in vhost user spec
 shpc improvements
 
 cleanups, fixes all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pc,pci: features, cleanups, fixes

vhost-user support without ioeventfd
word replacements in vhost user spec
shpc improvements

cleanups, fixes all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (53 commits)
  tests/data/acpi/virt: drop (most) duplicate files.
  hw/cxl/mailbox: Use new UUID network order define for cel_uuid
  qemu/uuid: Add UUID static initializer
  qemu/bswap: Add const_le64()
  tests: acpi: Update q35/DSDT.cxl for removed duplicate UID
  hw/i386/acpi: Drop duplicate _UID entry for CXL root bridge
  tests/acpi: Allow update of q35/DSDT.cxl
  hw/cxl: Add CXL_CAPACITY_MULTIPLIER definition
  hw/cxl: set cxl-type3 device type to PCI_CLASS_MEMORY_CXL
  hw/pci-bridge/cxl_downstream: Fix type naming mismatch
  hw/mem/cxl_type3: Improve error handling in realize()
  MAINTAINERS: Add Fan Ni as Compute eXpress Link QEMU reviewer
  intel-iommu: send UNMAP notifications for domain or global inv desc
  smmu: switch to use memory_region_unmap_iommu_notifier_range()
  memory: introduce memory_region_unmap_iommu_notifier_range()
  intel-iommu: fail DEVIOTLB_UNMAP without dt mode
  intel-iommu: fail MAP notifier without caching mode
  memory: Optimize replay of guest mapping
  chardev/char-socket: set s->listener = NULL in char_socket_finalize
  hw/pci: Trace IRQ routing on PCI topology
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-03 13:35:54 +00:00
Jason Wang
7caebbf9ea memory: introduce memory_region_unmap_iommu_notifier_range()
This patch introduces a new helper to unmap the range of a specific
IOMMU notifier.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230223065924.42503-4-jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-03-02 19:13:52 -05:00
Richard Henderson
383f50f753 exec/gen-icount: Don't use tcg_temp_local_new_i32
Since tcg_temp_new_i32 is now identical, use that.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01 07:33:28 -10:00
Richard Henderson
d5c3c6f6f1 tcg: Use tcg_constant_i32 in tcg_gen_io_start
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>
2023-03-01 07:33:27 -10:00
Richard Henderson
597f9b2d30 accel/tcg: Pass max_insn to gen_intermediate_code by pointer
In preparation for returning the number of insns generated
via the same pointer.  Adjust only the prototypes so far.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01 07:33:27 -10:00
Anton Johansson
640be074fa include/exec: Remove tb_pc()
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230227135202.9710-28-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01 07:33:26 -10:00
Anton Johansson
ea5446a8be include/exec: Remove TARGET_TB_PCREL define
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230227135202.9710-9-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01 07:32:01 -10:00
Anton Johansson
1fad5fce19 include/exec: Replace TARGET_TB_PCREL with CF_PCREL
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230227135202.9710-6-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01 07:31:48 -10:00
Anton Johansson
5b6dfc6c9b include/exec: Introduce CF_PCREL
Adds a new field to TranslationBlock.cflags denoting whether or not the
instructions of a given translation block are pc-relative. This field
aims to replace the macro `TARGET_TB_PCREL`.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230227135202.9710-2-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-03-01 07:31:09 -10:00
Richard Henderson
d507e6c565 accel/tcg: Add 'size' param to probe_access_full
Change to match the recent change to probe_access_flags.
All existing callers updated to supply 0, so no change in behaviour.

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>
2023-02-28 10:32:31 -10:00
Daniel Henrique Barboza
1770b2f2d3 accel/tcg: Add 'size' param to probe_access_flags()
probe_access_flags() as it is today uses probe_access_full(), which in
turn uses probe_access_internal() with size = 0. probe_access_internal()
then uses the size to call the tlb_fill() callback for the given CPU.
This size param ('fault_size' as probe_access_internal() calls it) is
ignored by most existing .tlb_fill callback implementations, e.g.
arm_cpu_tlb_fill(), ppc_cpu_tlb_fill(), x86_cpu_tlb_fill() and
mips_cpu_tlb_fill() to name a few.

But RISC-V riscv_cpu_tlb_fill() actually uses it. The 'size' parameter
is used to check for PMP (Physical Memory Protection) access. This is
necessary because PMP does not make any guarantees about all the bytes
of the same page having the same permissions, i.e. the same page can
have different PMP properties, so we're forced to make sub-page range
checks. To allow RISC-V emulation to do a probe_acess_flags() that
covers PMP, we need to either add a 'size' param to the existing
probe_acess_flags() or create a new interface (e.g.
probe_access_range_flags).

There are quite a few probe_* APIs already, so let's add a 'size' param
to probe_access_flags() and re-use this API. This is done by open coding
what probe_access_full() does inside probe_acess_flags() and passing the
'size' param to probe_acess_internal(). Existing probe_access_flags()
callers use size = 0 to not change their current API usage. 'size' is
asserted to enforce single page access like probe_access() already does.

No behavioral changes intended.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230223234427.521114-2-dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-28 10:32:31 -10:00
Philippe Mathieu-Daudé
0c4d7ddbd3 exec/helper-head: Include missing "fpu/softfloat-types.h" header
'dh_ctype_f32' is defined as 'float32', itself declared
in "fpu/softfloat-types.h". Include this header to avoid
when refactoring other headers:

  In file included from include/exec/helper-proto.h:7,
                   from include/tcg/tcg-op.h:29,
                   from ../../tcg/tcg-op-vec.c:22:
  include/exec/helper-head.h:44:22: error: unknown type name ‘float32’; did you mean ‘_Float32’?
     44 | #define dh_ctype_f32 float32
        |                      ^~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221216225202.25664-1-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-28 10:32:31 -10:00
Philippe Mathieu-Daudé
5b5968c477 replay: Extract core API to 'exec/replay-core.h'
replay API is used deeply within TCG common code (common to user
and system emulation). Unfortunately "sysemu/replay.h" requires
some QAPI headers for few system-specific declarations, example:

  void replay_input_event(QemuConsole *src, InputEvent *evt);

Since commit c2651c0eaa ("qapi/meson: Restrict UI module to system
emulation and tools") the QAPI header defining the InputEvent is
not generated anymore.
To keep it simple, extract the 'core' replay prototypes to a new
"exec/replay-core.h" header which we include in the TCG code that
doesn't need the rest of the replay API.

Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Message-Id: <20221219170806.60580-5-philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-02-27 22:29:01 +01:00
Philippe Mathieu-Daudé
c32c487a03 exec: Remove unused 'qemu/timer.h' timer
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221219170806.60580-2-philmd@linaro.org>
2023-02-27 22:29:01 +01:00
Fabiano Rosas
4cb884e994 cpu-defs.h: Expose CPUTLBEntryFull to non-TCG code
This struct has no dependencies on TCG code and it is being used in
target/arm/ptw.c to simplify the passing around of page table walk
results. Those routines can be reached by KVM code via the gdbstub
breakpoint code, so take the structure out of CONFIG_TCG to make it
visible when building with --disable-tcg.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-27 13:27:04 +00:00
Emanuele Giuseppe Esposito
e022d9cab7 bsd-user/mmap: use TSA_NO_TSA to suppress clang TSA warnings in FreeBSD
FreeBSD implements pthread headers using TSA (thread safety analysis)
annotations, therefore when an application is compiled with
-Wthread-safety there are some locking/annotation requirements that the
user of the pthread API has to follow.

This will also be the case in QEMU, since bsd-user/mmap.c uses the
pthread API. Therefore when building it with -Wthread-safety the
compiler will throw warnings because the functions are not properly
annotated. We need TSA to be enabled because it ensures that the
critical sections of an annotated variable are properly locked.

In order to make the compiler happy and avoid adding all the necessary
macros to all callers (lock functions should use TSA_ACQUIRE, while
unlock TSA_RELEASE, and this applies to all users of pthread_mutex_lock
and pthread_mutex_unlock), simply use TSA_NO_TSA to supppress such
warnings.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20230117135203.3049709-3-eesposit@redhat.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-02-17 11:22:19 +01:00
Richard Henderson
cb48f3654e tcg: Add guest load/store primitives for TCGv_i128
These are not yet considering atomicity of the 16-byte value;
this is a direct replacement for the current target code which
uses a pair of 8-byte operations.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04 06:19:42 -10:00
Richard Henderson
ecbea3ec1c tcg: Define TCG_TYPE_I128 and related helper macros
Begin staging in support for TCGv_i128 with Int128.
Define the type enumerator, the typedef, and the
helper-head.h macros.

This cannot yet be used, because you can't allocate
temporaries of this new type.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04 06:19:42 -10:00
Peter Maydell
bf4460a8d9 common-user: Re-enable ppc32 host
tcg: Avoid recursion in tcg_gen_mulu2_i32
 tcg: Mark tcg helpers noinline to avoid an issue with LTO
 tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
 disas: Enable loongarch disassembler, and fixes
 tcg/loongarch64: Improve move immediate
 tcg/loongarch64: Improve add immediate
 tcg/loongarch64: Improve setcond
 tcg/loongarch64: Implement movcond
 tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
 tcg/loongarch64: Reorg goto_tb implementation
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Merge tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu into staging

common-user: Re-enable ppc32 host
tcg: Avoid recursion in tcg_gen_mulu2_i32
tcg: Mark tcg helpers noinline to avoid an issue with LTO
tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
disas: Enable loongarch disassembler, and fixes
tcg/loongarch64: Improve move immediate
tcg/loongarch64: Improve add immediate
tcg/loongarch64: Improve setcond
tcg/loongarch64: Implement movcond
tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
tcg/loongarch64: Reorg goto_tb implementation

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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
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* tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu:
  tcg/loongarch64: Reorg goto_tb implementation
  tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
  tcg/loongarch64: Implement movcond
  tcg/loongarch64: Improve setcond expansion
  tcg/loongarch64: Introduce tcg_out_addi
  tcg/loongarch64: Update tcg-insn-defs.c.inc
  tcg/loongarch64: Optimize immediate loading
  target/loongarch: Disassemble pcadd* addresses
  target/loongarch: Disassemble jirl properly
  target/loongarch: Enable the disassembler for host tcg
  tcg: Mark tcg helpers noinline to avoid an issue with LTO
  linux-user: Implment host/ppc/host-signal.h
  common-user/host/ppc: Implement safe-syscall.inc.S
  tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
  tcg: Avoid recursion in tcg_gen_mulu2_i32

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 09:30:45 +00:00
Peter Xu
8a7c606016 intel-iommu: Document iova_tree
It seems not super clear on when iova_tree is used, and why.  Add a rich
comment above iova_tree to track why we needed the iova_tree, and when we
need it.

Also comment for the map/unmap messages, on how they're used and
implications (e.g. unmap can be larger than the mapped ranges).

Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20230109193727.1360190-1-peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-01-27 11:47:02 -05:00
Richard Henderson
6aa89be5c5 tcg: Mark tcg helpers noinline to avoid an issue with LTO
Marking helpers __attribute__((noinline)) prevents an issue
with GCC's ipa-split pass under --enable-lto.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1454
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Idan Horowitz <idan.horowitz@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23 14:39:48 -10:00
Peter Maydell
ef4f031fab tcg: Fix race conditions in (most) goto_tb implementations
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Merge tag 'pull-tcg-20230117' of https://gitlab.com/rth7680/qemu into staging

tcg: Fix race conditions in (most) goto_tb implementations

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# gpg: Signature made Tue 17 Jan 2023 23:08:17 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-tcg-20230117' of https://gitlab.com/rth7680/qemu: (22 commits)
  tcg/riscv: Implement direct branch for goto_tb
  tcg/riscv: Introduce OPC_NOP
  tcg/arm: Implement direct branch for goto_tb
  tcg/sparc64: Reorg goto_tb implementation
  tcg/sparc64: Remove USE_REG_TB
  tcg/ppc: Reorg goto_tb implementation
  tcg/aarch64: Reorg goto_tb implementation
  tcg: Remove TCG_TARGET_HAS_direct_jump
  tcg: Always define tb_target_set_jmp_target
  tcg: Move tb_target_set_jmp_target declaration to tcg.h
  tcg: Change tb_target_set_jmp_target arguments
  tcg: Add TranslationBlock.jmp_insn_offset
  tcg: Add gen_tb to TCGContext
  tcg: Rename TB_JMP_RESET_OFFSET_INVALID to TB_JMP_OFFSET_INVALID
  tcg: Split out tcg_out_goto_tb
  tcg: Introduce get_jmp_target_addr
  tcg: Introduce set_jmp_insn_offset
  tcg: Replace asserts on tcg_jmp_insn_offset
  tcg/sparc64: Remove unused goto_tb code for indirect jump
  tcg/ppc: Remove unused goto_tb code for indirect jump
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-19 11:56:51 +00:00
Philippe Mathieu-Daudé
883f2c591f bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx
The 'hwaddr' type is defined in "exec/hwaddr.h" as:

    hwaddr is the type of a physical address
   (its size can be different from 'target_ulong').

All definitions use the 'HWADDR_' prefix, except TARGET_FMT_plx:

 $ fgrep define include/exec/hwaddr.h
 #define HWADDR_H
 #define HWADDR_BITS 64
 #define HWADDR_MAX UINT64_MAX
 #define TARGET_FMT_plx "%016" PRIx64
         ^^^^^^
 #define HWADDR_PRId PRId64
 #define HWADDR_PRIi PRIi64
 #define HWADDR_PRIo PRIo64
 #define HWADDR_PRIu PRIu64
 #define HWADDR_PRIx PRIx64
 #define HWADDR_PRIX PRIX64

Since hwaddr's size can be *different* from target_ulong, it is
very confusing to read one of its format using the 'TARGET_FMT_'
prefix, normally used for the target_long / target_ulong types:

$ fgrep TARGET_FMT_ include/exec/cpu-defs.h
 #define TARGET_FMT_lx "%08x"
 #define TARGET_FMT_ld "%d"
 #define TARGET_FMT_lu "%u"
 #define TARGET_FMT_lx "%016" PRIx64
 #define TARGET_FMT_ld "%" PRId64
 #define TARGET_FMT_lu "%" PRIu64

Apparently this format was missed during commit a8170e5e97
("Rename target_phys_addr_t to hwaddr"), so complete it by
doing a bulk-rename with:

 $ sed -i -e s/TARGET_FMT_plx/HWADDR_FMT_plx/g $(git grep -l TARGET_FMT_plx)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110212947.34557-1-philmd@linaro.org>
[thuth: Fix some warnings from checkpatch.pl along the way]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-18 11:14:34 +01:00
Richard Henderson
9da6079b26 tcg: Add TranslationBlock.jmp_insn_offset
Stop overloading jmp_target_arg for both offset and address,
depending on TCG_TARGET_HAS_direct_jump.  Instead, add a new
field to hold the jump insn offset and always set the target
address in jmp_target_addr[].  This will allow a tcg backend
to use either direct or indirect depending on displacement.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17 10:08:55 -10:00
Richard Henderson
3a50f424c9 tcg: Rename TB_JMP_RESET_OFFSET_INVALID to TB_JMP_OFFSET_INVALID
This will shortly be used for more than reset.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-17 09:56:45 -10:00
Paolo Bonzini
f995037430 mips: Always include nanomips disassembler
Since the nanomips disassembler is not C++ code anymore, it need not
depend on link_language == cpp.  Always include it and remove the
CONFIG_NANOMIPS_DIS symbol.

Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110084942.299460-1-pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-01-13 16:22:53 +01:00
Peter Maydell
aa96ab7c9d * s390x header clean-ups from Philippe
* Rework and improvements of the EINTR handling by Nikita
 * Deprecate the -no-hpet command line option
 * Disable the qtests in the 32-bit Windows CI job again
 * Some other misc fixes here and there
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Merge tag 'pull-request-2023-01-09' of https://gitlab.com/thuth/qemu into staging

* s390x header clean-ups from Philippe
* Rework and improvements of the EINTR handling by Nikita
* Deprecate the -no-hpet command line option
* Disable the qtests in the 32-bit Windows CI job again
* Some other misc fixes here and there

# gpg: Signature made Mon 09 Jan 2023 14:21:19 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2023-01-09' of https://gitlab.com/thuth/qemu:
  .gitlab-ci.d/windows: Do not run the qtests in the msys2-32bit job
  error handling: Use RETRY_ON_EINTR() macro where applicable
  Refactoring: refactor TFR() macro to RETRY_ON_EINTR()
  docs/interop: Change the vnc-ledstate-Pseudo-encoding doc into .rst
  i386: Deprecate the -no-hpet QEMU command line option
  tests/qtest/bios-tables-test: Replace -no-hpet with hpet=off machine parameter
  tests/readconfig: spice doesn't support unix socket on windows yet
  target/s390x: Restrict sysemu/reset.h to system emulation
  target/s390x/tcg/excp_helper: Restrict system headers to sysemu
  target/s390x/tcg/misc_helper: Remove unused "memory.h" include
  hw/s390x/pv: Restrict Protected Virtualization to sysemu
  exec/memory: Expose memory_region_access_valid()
  MAINTAINERS: Add MIPS-related docs and configs to the MIPS architecture section
  tests/vm: Update get_default_jobs() to work on non-x86_64 non-KVM hosts
  qemu-iotests/stream-under-throttle: do not shutdown QEMU

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-09 15:54:31 +00:00
Philippe Mathieu-Daudé
94e273dbb5 exec/memory: Expose memory_region_access_valid()
Instead of having hardware device poking into memory
internal API, expose memory_region_access_valid().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221217152454.96388-2-philmd@linaro.org>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-09 13:50:13 +01:00
Markus Armbruster
7a5951f651 include: Include headers where needed
A number of headers neglect to include everything they need.  They
compile only if the headers they need are already included from
elsewhere.  Fix that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221222120813.727830-3-armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-01-08 01:54:22 -05:00
Richard Henderson
39004a71d8 tcg: Reorg function calls
Pre-compute the function call layout for each helper at startup.
Drop TCG_CALL_DUMMY_ARG, as we no longer need to leave gaps
in the op->args[] array.  This allows several places to stop
checking for NULL TCGTemp, to which TCG_CALL_DUMMY_ARG mapped.

For tcg_gen_callN, loop over the arguments once.  Allocate the TCGOp
for the call early but delay emitting it, collecting arguments first.
This allows the argument processing loop to emit code for extensions
and have them sequenced before the call.

For tcg_reg_alloc_call, loop over the arguments in reverse order,
which allows stack slots to be filled first naturally.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-05 11:41:29 -08:00
Richard Henderson
cb10bc63b7 tcg: Vary the allocation size for TCGOp
We have been allocating a worst case number of arguments
to support calls.  Instead, allow the size to vary.
By default leave space for 4 args, to maximize reuse,
but allow calls to increase the number of args to 32.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Split patch in two]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221218211832.73312-3-philmd@linaro.org>
2023-01-05 11:41:29 -08:00
Richard Henderson
6ca5ac139f accel/tcg: Move remainder of page locking to tb-maint.c
The only thing that still touches PageDesc in translate-all.c
are some locking routines related to tb-maint.c which have not
yet been moved.  Do so now.

Move some code up in tb-maint.c as well, to untangle the maze
of ifdefs, and allow a sensible final ordering.

Move some declarations from exec/translate-all.h to internal.h,
as they are only used within accel/tcg/.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-12-20 17:11:12 -08:00
Richard Henderson
a97d5d2c8b accel/tcg: Use interval tree for TBs in user-only mode
Begin weaning user-only away from PageDesc.

Since, for user-only, all TB (and page) manipulation is done with
a single mutex, and there is no virtual/physical discontinuity to
split a TB across discontinuous pages, place all of the TBs into
a single IntervalTree. This makes it trivial to find all of the
TBs intersecting a range.

Retain the existing PageDesc + linked list implementation for
system mode.  Move the portion of the implementation that overlaps
the new user-only code behind the common ifdef.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-12-20 17:09:41 -08:00
Peter Xu
cedb70eafb migration: Use non-atomic ops for clear log bitmap
Since we already have bitmap_mutex to protect either the dirty bitmap or
the clear log bitmap, we don't need atomic operations to set/clear/test on
the clear log bitmap.  Switching all ops from atomic to non-atomic
versions, meanwhile touch up the comments to show which lock is in charge.

Introduced non-atomic version of bitmap_test_and_clear_atomic(), mostly the
same as the atomic version but simplified a few places, e.g. dropped the
"old_bits" variable, and also the explicit memory barriers.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2022-11-21 11:58:10 +01:00
Stefan Weil
2cb40d446f Fix several typos in documentation (found by codespell)
Those typos are in files which are used to generate the QEMU manual.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20221110190825.879620-1-sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
[thuth: update sentence in can.rst as suggested by Peter]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-11-11 09:39:25 +01:00
Stefan Hajnoczi
f21f1cfeb9 pci,pc,virtio: features, tests, fixes, cleanups
lots of acpi rework
 first version of biosbits infrastructure
 ASID support in vhost-vdpa
 core_count2 support in smbios
 PCIe DOE emulation
 virtio vq reset
 HMAT support
 part of infrastructure for viommu support in vhost-vdpa
 VTD PASID support
 fixes, tests all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

pci,pc,virtio: features, tests, fixes, cleanups

lots of acpi rework
first version of biosbits infrastructure
ASID support in vhost-vdpa
core_count2 support in smbios
PCIe DOE emulation
virtio vq reset
HMAT support
part of infrastructure for viommu support in vhost-vdpa
VTD PASID support
fixes, tests all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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# gpg: Signature made Mon 07 Nov 2022 14:27:53 EST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (83 commits)
  checkpatch: better pattern for inline comments
  hw/virtio: introduce virtio_device_should_start
  tests/acpi: update tables for new core count test
  bios-tables-test: add test for number of cores > 255
  tests/acpi: allow changes for core_count2 test
  bios-tables-test: teach test to use smbios 3.0 tables
  hw/smbios: add core_count2 to smbios table type 4
  vhost-user: Support vhost_dev_start
  vhost: Change the sequence of device start
  intel-iommu: PASID support
  intel-iommu: convert VTD_PE_GET_FPD_ERR() to be a function
  intel-iommu: drop VTDBus
  intel-iommu: don't warn guest errors when getting rid2pasid entry
  vfio: move implement of vfio_get_xlat_addr() to memory.c
  tests: virt: Update expected *.acpihmatvirt tables
  tests: acpi: aarch64/virt: add a test for hmat nodes with no initiators
  hw/arm/virt: Enable HMAT on arm virt machine
  tests: Add HMAT AArch64/virt empty table files
  tests: acpi: q35: update expected blobs *.hmat-noinitiators expected HMAT:
  tests: acpi: q35: add test for hmat nodes without initiators
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-11-07 18:43:56 -05:00
Cindy Lu
baa44bce87 vfio: move implement of vfio_get_xlat_addr() to memory.c
- Move the implement vfio_get_xlat_addr to softmmu/memory.c, and
  change the name to memory_get_xlat_addr(). So we can use this
  function on other devices, such as vDPA device.
- Add a new function vfio_get_xlat_addr in vfio/common.c, and it will check
  whether the memory is backed by a discard manager. then device can
  have its own warning.

Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20221031031020.1405111-2-lulu@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-11-07 14:08:17 -05:00
Stefan Weil
1e458f1127 Fix some typos in documentation and comments
Most of them were found and fixed using codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221030105944.311940-1-sw@weilnetz.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-11-05 20:35:45 +01:00
Stefan Hajnoczi
0d37413c63 testing and plugin updates for 7.2:
- cleanup win32/64 docker files
   - update test-mingw test
   - add flex/bison to debian-all-test
   - handle --enable-static/--disable-pie in config
   - extend timeouts on x86_64 avocado tests
   - add flex/bison to debian-hexagon-cross
   - use regular semihosting for nios2 check-tcg
   - fix obscure linker error to nios2 softmmu tests
   - various windows portability fixes for tests
   - clean-up of MAINTAINERS
   - use -machine none when appropriate in avocado
   - make raspi2_initrd test detect shutdown
   - disable sh4 rd2 tests on gitlab
   - re-enable threadcount/linux-test for sh4
   - clean-up s390x handling of "ex" instruction
   - better handle new CPUs in execlog plugin
   - pass CONFIG_DEBUG_TCG to plugin builds
   - try and avoid races in test-io-channel-command
   - speed up ssh key checking for tests/vm
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Merge tag 'pull-testing-for-7.2-011122-3' of https://github.com/stsquad/qemu into staging

testing and plugin updates for 7.2:

  - cleanup win32/64 docker files
  - update test-mingw test
  - add flex/bison to debian-all-test
  - handle --enable-static/--disable-pie in config
  - extend timeouts on x86_64 avocado tests
  - add flex/bison to debian-hexagon-cross
  - use regular semihosting for nios2 check-tcg
  - fix obscure linker error to nios2 softmmu tests
  - various windows portability fixes for tests
  - clean-up of MAINTAINERS
  - use -machine none when appropriate in avocado
  - make raspi2_initrd test detect shutdown
  - disable sh4 rd2 tests on gitlab
  - re-enable threadcount/linux-test for sh4
  - clean-up s390x handling of "ex" instruction
  - better handle new CPUs in execlog plugin
  - pass CONFIG_DEBUG_TCG to plugin builds
  - try and avoid races in test-io-channel-command
  - speed up ssh key checking for tests/vm

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# gpg: Signature made Tue 01 Nov 2022 09:49:39 EDT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [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: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* tag 'pull-testing-for-7.2-011122-3' of https://github.com/stsquad/qemu: (31 commits)
  tests/vm: use -o IdentitiesOnly=yes for ssh
  tests/unit: cleanups for test-io-channel-command
  contrib/plugins: protect execlog's last_exec expansion
  contrib/plugins: enable debug on CONFIG_DEBUG_TCG
  tests/tcg: include CONFIG_PLUGIN in config-host.mak
  target/s390x: fake instruction loading when handling 'ex'
  target/s390x: don't probe next pc for EXecuted insns
  target/s390x: don't use ld_code2 to probe next pc
  tests/tcg: re-enable threadcount for sh4
  tests/tcg: re-enable linux-test for sh4
  tests/avocado: disable sh4 rd2 tests on Gitlab
  tests/avocado: raspi2_initrd: Wait for guest shutdown message before stopping
  tests/avocado: set -machine none for userfwd and vnc tests
  MAINTAINERS: fix-up for check-tcg Makefile changes
  MAINTAINERS: add features_to_c.sh to gdbstub files
  MAINTAINERS: add entries for the key build bits
  hw/usb: dev-mtp: Use g_mkdir()
  block/vvfat: Unify the mkdir() call
  tcg: Avoid using hardcoded /tmp
  semihosting/arm-compat-semi: Avoid using hardcoded /tmp
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-11-01 13:39:06 -04:00
Richard Henderson
3d419a4dd2 accel/tcg: Remove will_exit argument from cpu_restore_state
The value passed is always true, and if the target's
synchronize_from_tb hook is non-trivial, not exiting
may be erroneous.

Reviewed-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-11-01 08:31:41 +11:00
Alex Bennée
9fa97e04ae target/s390x: fake instruction loading when handling 'ex'
The s390x EXecute instruction is a bit weird as we synthesis the
executed instruction from what we have stored in memory. This missed
the plugin instrumentation.

Work around this with a special helper to inform the rest of the
translator about the instruction so things stay consistent.

Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221027183637.2772968-26-alex.bennee@linaro.org>
2022-10-31 20:37:59 +00:00
Richard Henderson
6392bd6b90 accel/tcg: Introduce cpu_unwind_state_data
Add a way to examine the unwind data without actually
restoring the data back into env.

Reviewed-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-11-01 07:28:53 +11:00
Stefan Hajnoczi
75d30fde55 Pull request
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Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

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# gpg: Signature made Wed 26 Oct 2022 14:58:38 EDT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [ultimate]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [ultimate]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
  virtio-blk: use BDRV_REQ_REGISTERED_BUF optimization hint
  blkio: implement BDRV_REQ_REGISTERED_BUF optimization
  stubs: add qemu_ram_block_from_host() and qemu_ram_get_fd()
  exec/cpu-common: add qemu_ram_get_fd()
  block: add BlockRAMRegistrar
  numa: use QLIST_FOREACH_SAFE() for RAM block notifiers
  block: return errors from bdrv_register_buf()
  block: add BDRV_REQ_REGISTERED_BUF request flag
  block: use BdrvRequestFlags type for supported flag fields
  block: pass size to bdrv_unregister_buf()
  numa: call ->ram_block_removed() in ram_block_notifer_remove()
  blkio: add libblkio block driver
  coroutine: add flag to re-queue at front of CoQueue

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-10-30 15:07:25 -04:00
Stefan Hajnoczi
6d998f3cbf exec/cpu-common: add qemu_ram_get_fd()
Add a function to get the file descriptor for a RAMBlock. Device
emulation code typically uses the MemoryRegion APIs but vhost-style code
may use RAMBlock directly for sharing guest memory with another process.

This new API will be used by the libblkio block driver so it can share
guest memory via .bdrv_register_buf().

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20221013185908.1297568-11-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-10-26 14:56:42 -04:00
Richard Henderson
04f105758b accel/tcg: Remove restore_state_to_opc function
All targets have been updated.  Use the tcg_ops target hook
exclusively, which allows the compat code to be removed.

Reviewed-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-10-26 11:11:28 +10:00