Merge tag 'pull-tcg-20230204' of https://gitlab.com/rth7680/qemu into staging

tcg: Add support for TCGv_i128 in parameters and returns.
tcg: Add support for TCGv_i128 in cmpxchg.
tcg: Test CPUJumpCache in tb_jmp_cache_clear_page
tcg: Split out tcg_gen_nonatomic_cmpxchg_i{32,64}
tcg/aarch64: Fix patching of LDR in tb_target_set_jmp_target
target/arm: Use tcg_gen_atomic_cmpxchg_i128
target/i386: Use tcg_gen_atomic_cmpxchg_i128
target/i386: Use tcg_gen_nonatomic_cmpxchg_i{32,64}
target/s390x: Use tcg_gen_atomic_cmpxchg_i128
target/s390x: Use TCGv_i128 in passing and returning float128
target/s390x: Implement CC_OP_NZ in gen_op_calc_cc

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# gpg: Signature made Sat 04 Feb 2023 16:30:46 GMT
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# 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-20230204' of https://gitlab.com/rth7680/qemu: (40 commits)
  tcg/aarch64: Fix patching of LDR in tb_target_set_jmp_target
  target/i386: Inline cmpxchg16b
  target/i386: Inline cmpxchg8b
  target/i386: Split out gen_cmpxchg8b, gen_cmpxchg16b
  target/s390x: Implement CC_OP_NZ in gen_op_calc_cc
  target/s390x: Use tcg_gen_atomic_cmpxchg_i128 for CDSG
  target/s390x: Use Int128 for passing float128
  target/s390x: Use Int128 for returning float128
  target/s390x: Copy wout_x1 to wout_x1_P
  target/s390x: Use Int128 for return from TRE
  target/s390x: Use Int128 for return from CKSM
  target/s390x: Use Int128 for return from CLST
  target/s390x: Use a single return for helper_divs64/u64
  target/s390x: Use a single return for helper_divs32/u32
  tests/tcg/s390x: Add cdsg.c
  tests/tcg/s390x: Add long-double.c
  tests/tcg/s390x: Add clst.c
  tests/tcg/s390x: Add div.c
  target/ppc: Use tcg_gen_atomic_cmpxchg_i128 for STQCX
  target/arm: Use tcg_gen_atomic_cmpxchg_i128 for CASP
  ...

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

Merge tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

linux-user branch pull request 20230204

Implement execveat()
un-parent OBJECT(cpu) when closing thread
Revert fix for glibc >= 2.36 sys/mount.h
Fix/update strace
move target_flat.h to target subdirs
Fix SO_ERROR return code of getsockopt()
Fix /proc/cpuinfo output for hppa
Add emulation for MADV_WIPEONFORK and MADV_KEEPONFORK in madvise()
Implement SOL_ALG encryption support
linux-user: Allow sendmsg() without IOV

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# 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]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu: (22 commits)
  linux-user: Allow sendmsg() without IOV
  linux-user: Implement SOL_ALG encryption support
  linux-user: Enhance strace output for various syscalls
  linux-user: Show 4th argument of rt_sigprocmask() in strace
  linux-user: Add emulation for MADV_WIPEONFORK and MADV_KEEPONFORK in madvise()
  linux-user: Improve strace output of personality() and sysinfo()
  linux-user: Fix /proc/cpuinfo output for hppa
  linux-user: Fix SO_ERROR return code of getsockopt()
  linux-user: move target_flat.h to target subdirs
  linux-user: Improve strace output of getgroups() and setgroups()
  linux-user: Add strace output for clock_getres_time64() and futex_time64()
  Revert "linux-user: fix compat with glibc >= 2.36 sys/mount.h"
  Revert "linux-user: add more compat ioctl definitions"
  linux-user: add more netlink protocol constants
  linux-user: fix strace build w/out munlockall
  linux-user: un-parent OBJECT(cpu) when closing thread
  linux-user: Add missing MAP_HUGETLB and MAP_STACK flags in strace
  linux-user/syscall: Implement execveat()
  linux-user/syscall: Extract do_execve() from do_syscall1()
  linux-user/strace: Add output for execveat() syscall
  ...

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

tcg/aarch64: Fix patching of LDR in tb_target_set_jmp_target

'offset' should be bits [23:5] of LDR instruction, rather than [4:0].

Fixes: d59d83a1c388 ("tcg/aarch64: Reorg goto_tb implementation")
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/i386: Inline cmpxchg16b

Use tcg_gen_atomic_cmpxchg_i128 for the atomic case,
and tcg_gen_qemu_ld/st_i128 otherwise.

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

target/i386: Inline cmpxchg8b

Use tcg_gen_atomic_cmpxchg_i64 for the atomic case,
and tcg_gen_nonatomic_cmpxchg_i64 otherwise.

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>

target/i386: Split out gen_cmpxchg8b, gen_cmpxchg16b

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

target/s390x: Implement CC_OP_NZ in gen_op_calc_cc

This case is trivial to implement inline.

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

target/s390x: Use tcg_gen_atomic_cmpxchg_i128 for CDSG

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Use Int128 for passing float128

Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Fix SPEC_in1_x1.

target/s390x: Use Int128 for returning float128

Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Remove extraneous return_low128.

target/s390x: Copy wout_x1 to wout_x1_P

Make a copy of wout_x1 before modifying it, as wout_x1_P
emphasizing that it operates on the out/out2 pair.  The insns
that use x1_P are data movement that will not change to Int128.

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Use Int128 for return from TRE

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Use Int128 for return from CKSM

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Use Int128 for return from CLST

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Use a single return for helper_divs64/u64

Pack the quotient and remainder into a single Int128.
Use the divu128 primitive to remove the cpu_abort on
32-bit hosts.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Extended div test case to cover these insns.

target/s390x: Use a single return for helper_divs32/u32

Pack the quotient and remainder into a single uint64_t.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Fix operand ordering; use tcg_extr32_i64.

tests/tcg/s390x: Add cdsg.c

Add a simple test to prevent regressions.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230201133257.3223115-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tests/tcg/s390x: Add long-double.c

Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tests/tcg/s390x: Add clst.c

Add a basic test to prevent regressions.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20221025213008.2209006-2-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tests/tcg/s390x: Add div.c

Add a basic test to prevent regressions.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20221101111300.2539919-1-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/ppc: Use tcg_gen_atomic_cmpxchg_i128 for STQCX

Note that the previous direct reference to reserve_val,

-   tcg_gen_ld_i64(t1, cpu_env, (ctx->le_mode
-                                ? offsetof(CPUPPCState, reserve_val2)
-                                : offsetof(CPUPPCState, reserve_val)));

was incorrect because all references should have gone through
cpu_reserve_val.  Create a cpu_reserve_val2 tcg temp to fix this.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221112061122.2720163-2-richard.henderson@linaro.org>

target/arm: Use tcg_gen_atomic_cmpxchg_i128 for CASP

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20221112042555.2622152-3-richard.henderson@linaro.org>

target/arm: Use tcg_gen_atomic_cmpxchg_i128 for STXP

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20221112042555.2622152-2-richard.henderson@linaro.org>

tcg: Split out tcg_gen_nonatomic_cmpxchg_i{32,64}

Normally this is automatically handled by the CF_PARALLEL checks
with in tcg_gen_atomic_cmpxchg_i{32,64}, but x86 has a special
case of !PREFIX_LOCK where it always wants the non-atomic version.

Split these out so that x86 does not have to roll its own.

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

tcg: Add tcg_gen_{non}atomic_cmpxchg_i128

This will allow targets to avoid rolling their own.

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>

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>

tcg: Add basic data movement for TCGv_i128

Add code generation functions for data movement between
TCGv_i128 (mov) and to/from TCGv_i64 (concat, extract).

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>

tcg: Add temp allocation for TCGv_i128

This enables allocation of i128.  The type is not yet
usable, as we have not yet added data movement ops.

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>

tcg: Add TCG_TARGET_CALL_{RET,ARG}_I128

Fill in the parameters for the host ABI for Int128 for
those backends which require no extra modification.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/tci: Add TCG_TARGET_CALL_{RET,ARG}_I128

Fill in the parameters for libffi for Int128.
Adjust the interpreter to allow for 16-byte return values.
Adjust tcg_out_call to record the return value length.

Call parameters are no longer all the same size, so we
cannot reuse the same call_slots array for every function.
Compute it each time now, but only fill in slots required
for the call we're about to make.

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

tcg/tci: Fix big-endian return register ordering

We expect the backend to require register pairs in
host-endian ordering, thus for big-endian the first
register of a pair contains the high part.
We were forcing R0 to contain the low part for calls.

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>

tcg/i386: Add TCG_TARGET_CALL_{RET,ARG}_I128

Fill in the parameters for the host ABI for Int128.
Adjust tcg_target_call_oarg_reg for _WIN64, and
tcg_out_call for i386 sysv.  Allow TCG_TYPE_V128
stores without AVX enabled.

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

include/qemu/int128: Use Int128 structure for TCI

We are about to allow passing Int128 to/from tcg helper functions,
but libffi doesn't support __int128_t, so use the structure.

In order for atomic128.h to continue working, we must provide
a mechanism to frob between real __int128_t and the structure.
Provide a new union, Int128Alias, for this.  We cannot modify
Int128 itself, as any changed alignment would also break libffi.

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>

tcg: Add TCG_CALL_RET_BY_VEC

This will be used by _WIN64 to return i128.  Not yet used,
because allocation is not yet enabled.

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

tcg: Introduce tcg_target_call_oarg_reg

Replace the flat array tcg_target_call_oarg_regs[] with
a function call including the TCGCallReturnKind.

Extend the set of registers for ARM to r0-r3 to match the ABI:
https://github.com/ARM-software/abi-aa/blob/main/aapcs32/aapcs32.rst#result-return

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Add TCG_CALL_{RET,ARG}_BY_REF

These will be used by some hosts, both 32 and 64-bit, to pass and
return i128.  Not yet used, because allocation is not yet enabled.

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

tcg: Introduce tcg_out_addi_ptr

Implement the function for arm, i386, and s390x, which will use it.
Add stubs for all other backends.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Allocate objects contiguously in temp_allocate_frame

When allocating a temp to the stack frame, consider the
base type and allocate all parts at once.

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

tcg: Handle dh_typecode_i128 with TCG_CALL_{RET,ARG}_NORMAL

Many hosts pass and return 128-bit quantities like sequential
64-bit quantities.  Treat this just like we currently break
down 64-bit quantities for a 32-bit host.

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

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>

tcg: Init temp_subindex in liveness_pass_2

Correctly handle large types while lowering.

Fixes: fac87bd2a49b ("tcg: Add temp_subindex to TCGTemp")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Test CPUJumpCache in tb_jmp_cache_clear_page

After commit 4e4fa6c12d ("accel/tcg: Complete cpu initialization
before registration"), it looks the CPUJumpCache pointer can be NULL.
This causes a SIGSEV when running debug-wp-migration kvm unit test.

At the first place it should be clarified why this TCG code is called
with KVM acceleration. This may hide another bug.

Fixes: 4e4fa6c12d ("accel/tcg: Complete cpu initialization before registration")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20230203171510.2867451-1-eric.auger@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'm68k-next-pull-request' of https://github.com/vivier/qemu-m68k into staging

m68k pull request 20230201

fix 'bkpt' instruction in softmmu mode

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# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
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* tag 'm68k-next-pull-request' of https://github.com/vivier/qemu-m68k:
  m68k: fix 'bkpt' instruction in softmmu mode

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

Merge tag 'pull-monitor-2023-02-03-v2' of https://repo.or.cz/qemu/armbru into staging

Monitor patches for 2023-02-03

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# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-monitor-2023-02-03-v2' of https://repo.or.cz/qemu/armbru: (35 commits)
  monitor: Rename misc.c to hmp-target.c
  monitor: Loosen coupling between misc.c and monitor.c slightly
  monitor: Move remaining QMP stuff from misc.c to qmp-cmds.c
  monitor: Move remaining HMP commands from misc.c to hmp-cmds.c
  monitor: Move target-dependent HMP commands to hmp-cmds-target.c
  monitor: Move monitor_putc() next to monitor_puts & external linkage
  monitor: Split file descriptor passing stuff off misc.c
  qdev: Move HMP command completion from monitor to softmmu/
  acpi: Move the QMP command from monitor/ to hw/acpi/
  stats: Move HMP commands from monitor/ to stats/
  stats: Move QMP commands from monitor/ to stats/
  runstate: Move HMP commands from monitor/ to softmmu/
  tpm: Move HMP commands from monitor/ to softmmu/
  virtio: Move HMP commands from monitor/ to hw/virtio/
  migration: Move the QMP command from monitor/ to migration/
  migration: Move HMP commands from monitor/ to migration/
  net: Move hmp_info_network() to net-hmp-cmds.c
  net: Move HMP commands from monitor to net/
  hmp: Rewrite strlist_from_comma_list() as hmp_split_at_comma()
  rocker: Move HMP commands from monitor to hw/net/rocker/
  ...

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

monitor: Rename misc.c to hmp-target.c

What's left in misc.c is exactly the target-dependent part of the HMP
core.  Rename accordingly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-33-armbru@redhat.com>

monitor: Loosen coupling between misc.c and monitor.c slightly

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-32-armbru@redhat.com>

monitor: Move remaining QMP stuff from misc.c to qmp-cmds.c

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-31-armbru@redhat.com>

monitor: Move remaining HMP commands from misc.c to hmp-cmds.c

This requires giving them external linkage.  Rename do_help_cmd() to
hmp_help(), and do_print() to hmp_print().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-30-armbru@redhat.com>

monitor: Move target-dependent HMP commands to hmp-cmds-target.c

Target-independent hmp_gpa2hva(), hmp_gpa2hpa() move along to stay
next to hmp_gva2gpa().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-29-armbru@redhat.com>

monitor: Move monitor_putc() next to monitor_puts & external linkage

monitor_putc() will soon be used from more than one .c file.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-28-armbru@redhat.com>

monitor: Split file descriptor passing stuff off misc.c

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-27-armbru@redhat.com>

qdev: Move HMP command completion from monitor to softmmu/

This moves the completion code from MAINTAINERS sections "Human
Monitor (HMP)" and "QMP" to section "QOM".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-26-armbru@redhat.com>

acpi: Move the QMP command from monitor/ to hw/acpi/

This moves the command from MAINTAINERS section "QMP" to section
"ACPI/SMBIOS)".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-25-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

stats: Move HMP commands from monitor/ to stats/

This moves these commands from MAINTAINERS section "Human
Monitor (HMP)" to section "Stats".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-24-armbru@redhat.com>

stats: Move QMP commands from monitor/ to stats/

This moves these commands from MAINTAINERS section "QMP" to new
section "Stats".  Status is Orphan.  Volunteers welcome!

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-23-armbru@redhat.com>

runstate: Move HMP commands from monitor/ to softmmu/

This moves these commands from MAINTAINERS section "Human
Monitor (HMP)" and "QMP" to "Main loop".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-22-armbru@redhat.com>

tpm: Move HMP commands from monitor/ to softmmu/

This moves these commands from MAINTAINERS section "Human
Monitor (HMP)" to "TPM".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-21-armbru@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>

virtio: Move HMP commands from monitor/ to hw/virtio/

This moves these commands from MAINTAINERS section "Human
Monitor (HMP)" to "virtio".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-20-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

migration: Move the QMP command from monitor/ to migration/

This moves the command from MAINTAINERS sections "Human Monitor (HMP)"
and "QMP" to "Migration".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-19-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

migration: Move HMP commands from monitor/ to migration/

This moves these commands from MAINTAINERS sections "Human
Monitor (HMP)" and "QMP" to "Migration".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-18-armbru@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>

net: Move hmp_info_network() to net-hmp-cmds.c

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-17-armbru@redhat.com>

net: Move HMP commands from monitor to net/

This moves these commands from MAINTAINERS sections "Human
Monitor (HMP)" and "QMP" to "Network device backends".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-16-armbru@redhat.com>

hmp: Rewrite strlist_from_comma_list() as hmp_split_at_comma()

Use g_strsplit() for the actual splitting.  Give external linkage, so
the next commit can move one of its users to another source file.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-15-armbru@redhat.com>

rocker: Move HMP commands from monitor to hw/net/rocker/

This moves these commands from MAINTAINERS section "Human
Monitor (HMP)" to "Rocker" and "Network devices".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-14-armbru@redhat.com>

block: Factor out hmp_change_medium(), and move to block/monitor/

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-13-armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>

qom: Move HMP commands from monitor/ to qom/

This moves these commands from MAINTAINERS sections "Human
Monitor (HMP)" and "QMP" to "QOM".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-12-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

machine: Move HMP commands from monitor/ to hw/core/

This moves these commands from MAINTAINERS section "Human
Monitor (HMP)" to "Machine core".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-11-armbru@redhat.com>

machine: Move QMP commands from monitor/ to hw/core/

This moves these commands from MAINTAINERS section "QMP" to "Machine
core".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-10-armbru@redhat.com>

trace: Move HMP commands from monitor/ to trace/

This moves these commands from MAINTAINERS sections "Human
Monitor (HMP)" and "QMP" to "Tracing".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-9-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

hmp: Rename help_cmd() to hmp_help_cmd(), move declaration to hmp.h

The next commit will move a caller of help_cmd() to a new file.
Including monitor/monitor-internal.h there just for help_cmd() feels
silly.  Better to provide it in monitor/hmp.h suitably renamed.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-8-armbru@redhat.com>

readline: Extract readline_add_completion_of() from monitor

monitor/misc.h has static add_completion_option().  It's useful
elsewhere in the monitor.  Since it's not monitor-specific, move it to
util/readline.c renamed to readline_add_completion_of(), and put it to
use.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-7-armbru@redhat.com>

hmp: Drop redundant argument check from add_completion_option()

No need to check for null arguments, no caller passes them.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-6-armbru@redhat.com>

char: Factor out qmp_add_client() parts and move to chardev/

Code moves from MAINTAINERS section "QMP" to "Character device
backends".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-5-armbru@redhat.com>

char: Move HMP commands from monitor/ to chardev/

This moves these commands from MAINTAINERS sections "Human
Monitor (HMP)" and "QMP" to "Character device backends".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-4-armbru@redhat.com>

audio: Move HMP commands from monitor/ to audio/

This moves these commands from MAINTAINERS sections "Human
Monitor (HMP)" and "QMP" to "Overall Audio backends".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-3-armbru@redhat.com>

monitor: Drop unnecessary includes

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230124121946.1139465-2-armbru@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>

linux-user: Allow sendmsg() without IOV

Applications do call sendmsg() without any IOV, e.g.:
 sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0,
            msg_control=[{cmsg_len=36, cmsg_level=SOL_ALG, cmsg_type=0x2}],
            msg_controllen=40, msg_flags=0}, MSG_MORE) = 0
 sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="The quick brown fox jumps over t"..., iov_len=183}],
            msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_ALG, cmsg_type=0x3}],
            msg_controllen=24, msg_flags=0}, 0) = 183

The function do_sendrecvmsg_locked() is used for sndmsg() and recvmsg()
and calls lock_iovec() to lock the IOV into memory. For the first
sendmsg() above it returns NULL and thus wrongly skips the call the host
sendmsg() syscall, which will break the calling application.

Fix this issue by:
- allowing sendmsg() even with empty IOV
- skip recvmsg() if IOV is NULL
- skip both if the return code of do_sendrecvmsg_locked() != 0, which
  indicates some failure like EFAULT on the IOV

Tested with the debian "ell" package with hppa guest on x86_64 host.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20221212173416.90590-2-deller@gmx.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Implement SOL_ALG encryption support

Add suport to handle SOL_ALG packets via sendmsg() and recvmsg().
This allows emulated userspace to use encryption functionality.

Tested with the debian ell package with hppa guest on x86_64 host.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20221212173416.90590-1-deller@gmx.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Enhance strace output for various syscalls

Add appropriate strace printf formats for various Linux syscalls.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <Y5dsfGB1RChGfraW@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Show 4th argument of rt_sigprocmask() in strace

Add output for the missing 4th parameter (size_t sigsetsize).

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y9hCxdvdM1o+/iHC@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Add emulation for MADV_WIPEONFORK and MADV_KEEPONFORK in madvise()

Both parameters have a different value on the parisc platform, so first
translate the target value into a host value for usage in the native
madvise() syscall.

Those parameters are often used by security sensitive applications (e.g.
tor browser, boringssl, ...) which expect the call to return a proper
return code on failure, so return -EINVAL if qemu fails to forward the
syscall to the host OS.

While touching this code, enhance the comments about MADV_DONTNEED.

Tested with testcase of tor browser when running hppa-linux guest on
x86-64 host.

Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y5iwTaydU7i66K/i@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Improve strace output of personality() and sysinfo()

Make the strace look nicer for those two syscalls.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y9QxskymWJjrKQmT@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Fix /proc/cpuinfo output for hppa

The hppa architectures provides an own output for the emulated
/proc/cpuinfo file.

Some userspace applications count (even if that's not the recommended
way) the number of lines which start with "processor:" and assume that
this number then reflects the number of online CPUs. Since those 3
architectures don't provide any such line, applications may assume "0"
CPUs.  One such issue can be seen in debian bug report:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024653

Avoid such issues by adding a "processor:" line for each of the online
CPUs.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y9QvyRSq1I1k5/JW@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Fix SO_ERROR return code of getsockopt()

Add translation for the host error return code of:
    getsockopt(19, SOL_SOCKET, SO_ERROR, [ECONNREFUSED], [4]) = 0

This fixes the testsuite of the cockpit debian package with a
hppa-linux guest on a x86-64 host.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y9QzNzXg0hrzHQeo@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: move target_flat.h to target subdirs

This makes target_flat.h behave like every other target_xxx.h header.
It also makes it actually work -- while the current header says adding
a header to the target subdir overrides the common one, it doesn't.
This is for two reasons:
* meson.build adds -Ilinux-user before -Ilinux-user/$arch
* the compiler search path for "target_flat.h" looks in the same dir
  as the source file before searching -I paths.

This can be seen with the xtensa port -- the subdir settings aren't
used which breaks stack setup.

Move it to the generic/ subdir and add include stubs like every
other target_xxx.h header is handled.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230129004625.11228-1-vapier@gentoo.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Improve strace output of getgroups() and setgroups()

Make the strace look nicer for those syscalls.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230115210057.445132-1-deller@gmx.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Add strace output for clock_getres_time64() and futex_time64()

Add the two syscalls to strace output to avoid "Unknown syscall" message.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230115113517.25143-1-deller@gmx.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

Revert "linux-user: fix compat with glibc >= 2.36 sys/mount.h"

This reverts commit 3cd3df2a9584e6f753bb62a0028bd67124ab5532.

glibc has fixed (in 2.36.9000-40-g774058d729) the problem
that caused a clash when both sys/mount.h annd linux/mount.h
are included, and backported this to the 2.36 stable release
too:

  https://sourceware.org/glibc/wiki/Release/2.36#Usage_of_.3Clinux.2Fmount.h.3E_and_.3Csys.2Fmount.h.3E

It is saner for QEMU to remove the workaround it applied for
glibc 2.36 and expect distros to ship the 2.36 maint release
with the fix. This avoids needing to add a further workaround
to QEMU to deal with the fact that linux/brtfs.h now also pulls
in linux/mount.h via linux/fs.h since Linux 6.1

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230110174901.2580297-3-berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

Revert "linux-user: add more compat ioctl definitions"

This reverts commit c5495f4ecb0cdaaf2e9dddeb48f1689cdb520ca0.

glibc has fixed (in 2.36.9000-40-g774058d729) the problem
that caused a clash when both sys/mount.h annd linux/mount.h
are included, and backported this to the 2.36 stable release
too:

  https://sourceware.org/glibc/wiki/Release/2.36#Usage_of_.3Clinux.2Fmount.h.3E_and_.3Csys.2Fmount.h.3E

It is saner for QEMU to remove the workaround it applied for
glibc 2.36 and expect distros to ship the 2.36 maint release
with the fix. This avoids needing to add a further workaround
to QEMU to deal with the fact that linux/brtfs.h now also pulls
in linux/mount.h via linux/fs.h since Linux 6.1

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230110174901.2580297-2-berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: add more netlink protocol constants

Currently, qemu strace only prints four protocol contants. This patch
adds others listed in "linux/netlink.h".

Signed-off-by: Letu Ren <fantasquex@gmail.com>
Message-Id: <20230101141105.12024-1-fantasquex@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: fix strace build w/out munlockall

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230118090144.31155-1-vapier@gentoo.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: un-parent OBJECT(cpu) when closing thread

This reinstates commit 52f0c1607671293afcdb2acc2f83e9bccbfa74bb:

While forcing the CPU to unrealize by hand does trigger the clean-up
code we never fully free resources because refcount never reaches
zero. This is because QOM automatically added objects without an
explicit parent to /unattached/, incrementing the refcount.

Instead of manually triggering unrealization just unparent the object
and let the device machinery deal with that for us.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/866
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220811151413.3350684-2-alex.bennee@linaro.org>

The original patch tickled a problem in target/arm, and was reverted.
But that problem is fixed as of commit 3b07a936d3bf.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230124201019.3935934-1-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Add missing MAP_HUGETLB and MAP_STACK flags in strace

Add two missing mmap flags.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y5iiED4PpnGAHpyz@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

Merge tag 'pull-target-arm-20230203' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Fix physical address resolution for Stage2
 * pl011: refactoring, implement reset method
 * Support GICv3 with hvf acceleration
 * sbsa-ref: remove cortex-a76 from list of supported cpus
 * Correct syndrome for ATS12NSO* traps at Secure EL1
 * Fix priority of HSTR_EL2 traps vs UNDEFs
 * Implement FEAT_FGT for '-cpu max'

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# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 03 Feb 2023 14:28:59 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20230203' of https://git.linaro.org/people/pmaydell/qemu-arm: (33 commits)
  target/arm: Enable FEAT_FGT on '-cpu max'
  target/arm: Implement MDCR_EL2.TDCC and MDCR_EL3.TDCC traps
  target/arm: Implement the HFGITR_EL2.SVC_EL0 and SVC_EL1 traps
  target/arm: Implement the HFGITR_EL2.ERET trap
  target/arm: Mark up sysregs for HFGITR bits 48..63
  target/arm: Mark up sysregs for HFGITR bits 18..47
  target/arm: Mark up sysregs for HFGITR bits 12..17
  target/arm: Mark up sysregs for HFGITR bits 0..11
  target/arm: Mark up sysregs for HDFGRTR bits 12..63
  target/arm: Mark up sysregs for HDFGRTR bits 0..11
  target/arm: Mark up sysregs for HFGRTR bits 36..63
  target/arm: Mark up sysregs for HFGRTR bits 24..35
  target/arm: Mark up sysregs for HFGRTR bits 12..23
  target/arm: Mark up sysregs for HFGRTR bits 0..11
  target/arm: Implement FGT trapping infrastructure
  target/arm: Define the FEAT_FGT registers
  target/arm: Disable HSTR_EL2 traps if EL2 is not enabled
  target/arm: Make HSTR_EL2 traps take priority over UNDEF-at-EL1
  target/arm: All UNDEF-at-EL0 traps take priority over HSTR_EL2 traps
  target/arm: Move do_coproc_insn() syndrome calculation earlier
  ...

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

target/arm: Enable FEAT_FGT on '-cpu max'

Update the ID registers for TCG's '-cpu max' to report the
presence of FEAT_FGT Fine-Grained Traps support.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-24-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-24-peter.maydell@linaro.org

target/arm: Implement MDCR_EL2.TDCC and MDCR_EL3.TDCC traps

FEAT_FGT also implements an extra trap bit in the MDCR_EL2 and
MDCR_EL3 registers: bit TDCC enables trapping of use of the Debug
Comms Channel registers OSDTRRX_EL1, OSDTRTX_EL1, MDCCSR_EL0,
MDCCINT_EL0, DBGDTR_EL0, DBGDTRRX_EL0 and DBGDTRTX_EL0 (and their
AArch32 equivalents).  This trapping is independent of whether
fine-grained traps are enabled or not.

Implement these extra traps.  (We don't implement DBGDTR_EL0,
DBGDTRRX_EL0 and DBGDTRTX_EL0.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-23-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-23-peter.maydell@linaro.org

target/arm: Implement the HFGITR_EL2.SVC_EL0 and SVC_EL1 traps

Implement the HFGITR_EL2.SVC_EL0 and SVC_EL1 fine-grained traps.
These trap execution of the SVC instruction from AArch32 and AArch64.
(As usual, AArch32 can only trap from EL0, as fine grained traps are
disabled with an AArch32 EL1.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-22-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-22-peter.maydell@linaro.org

target/arm: Implement the HFGITR_EL2.ERET trap

Implement the HFGITR_EL2.ERET fine-grained trap.  This traps
execution from AArch64 EL1 of ERET, ERETAA and ERETAB.  The trap is
reported with a syndrome value of 0x1a.

The trap must take precedence over a possible pointer-authentication
trap for ERETAA and ERETAB.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-21-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-21-peter.maydell@linaro.org

target/arm: Mark up sysregs for HFGITR bits 48..63

Mark up the sysreg definitions for the system instructions
trapped by HFGITR bits 48..63.

Some of these bits are for trapping instructions which are
not in the system instruction encoding (i.e. which are
not handled by the ARMCPRegInfo mechanism):
 * ERET, ERETAA, ERETAB
 * SVC

We will have to handle those separately and manually.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-20-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-20-peter.maydell@linaro.org

target/arm: Mark up sysregs for HFGITR bits 18..47

Mark up the sysreg definitions for the system instructions
trapped by HFGITR bits 18..47. These bits cover TLBI
TLB maintenance instructions.

(If we implemented FEAT_XS we would need to trap some of the
instructions added by that feature using these bits; but we don't
yet, so will need to add the .fgt markup when we do.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-19-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-19-peter.maydell@linaro.org