Richard Henderson [Wed, 9 Nov 2022 04:22:15 +0000 (15:22 +1100)]
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>
Richard Henderson [Thu, 10 Nov 2022 08:12:09 +0000 (18:12 +1000)]
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>
Richard Henderson [Wed, 9 Nov 2022 02:54:35 +0000 (13:54 +1100)]
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>
Richard Henderson [Fri, 21 Oct 2022 03:05:45 +0000 (13:05 +1000)]
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.
Richard Henderson [Thu, 20 Oct 2022 00:15:49 +0000 (10:15 +1000)]
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.
Richard Henderson [Fri, 21 Oct 2022 05:18:56 +0000 (15:18 +1000)]
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>
Richard Henderson [Fri, 21 Oct 2022 02:00:07 +0000 (12:00 +1000)]
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>
Richard Henderson [Fri, 21 Oct 2022 01:51:10 +0000 (11:51 +1000)]
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>
Richard Henderson [Fri, 21 Oct 2022 01:46:06 +0000 (11:46 +1000)]
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>
Richard Henderson [Wed, 19 Oct 2022 23:08:52 +0000 (09:08 +1000)]
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.
Richard Henderson [Wed, 19 Oct 2022 22:18:59 +0000 (08:18 +1000)]
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.
Ilya Leoshkevich [Wed, 1 Feb 2023 13:32:57 +0000 (14:32 +0100)]
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>
Richard Henderson [Fri, 21 Oct 2022 06:09:30 +0000 (16:09 +1000)]
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>
Ilya Leoshkevich [Tue, 25 Oct 2022 21:30:08 +0000 (23:30 +0200)]
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>
Ilya Leoshkevich [Tue, 1 Nov 2022 11:13:00 +0000 (12:13 +0100)]
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>
Richard Henderson [Sat, 12 Nov 2022 06:11:22 +0000 (16:11 +1000)]
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>
Richard Henderson [Sat, 12 Nov 2022 04:25:55 +0000 (14:25 +1000)]
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>
Richard Henderson [Sat, 12 Nov 2022 04:25:54 +0000 (14:25 +1000)]
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>
Richard Henderson [Thu, 10 Nov 2022 06:07:04 +0000 (16:07 +1000)]
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>
Richard Henderson [Tue, 8 Nov 2022 13:23:44 +0000 (00:23 +1100)]
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>
Richard Henderson [Mon, 7 Nov 2022 08:48:14 +0000 (19:48 +1100)]
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>
Richard Henderson [Wed, 19 Oct 2022 22:00:51 +0000 (08:00 +1000)]
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>
Richard Henderson [Wed, 19 Oct 2022 22:03:41 +0000 (08:03 +1000)]
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>
Richard Henderson [Wed, 19 Oct 2022 21:54:48 +0000 (07:54 +1000)]
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>
Richard Henderson [Fri, 21 Oct 2022 00:47:54 +0000 (10:47 +1000)]
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>
Richard Henderson [Fri, 21 Oct 2022 00:34:21 +0000 (10:34 +1000)]
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>
Richard Henderson [Fri, 21 Oct 2022 00:16:28 +0000 (10:16 +1000)]
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>
Richard Henderson [Sun, 16 Oct 2022 23:17:20 +0000 (09:17 +1000)]
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>
Richard Henderson [Wed, 19 Oct 2022 15:13:52 +0000 (01:13 +1000)]
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>
Richard Henderson [Wed, 19 Oct 2022 14:55:36 +0000 (00:55 +1000)]
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>
Richard Henderson [Sun, 30 Oct 2022 22:22:59 +0000 (09:22 +1100)]
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>
Richard Henderson [Tue, 18 Oct 2022 11:28:04 +0000 (21:28 +1000)]
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>
Richard Henderson [Wed, 19 Oct 2022 02:03:40 +0000 (12:03 +1000)]
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>
Richard Henderson [Fri, 11 Nov 2022 01:01:13 +0000 (11:01 +1000)]
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>
Richard Henderson [Fri, 11 Nov 2022 00:49:52 +0000 (10:49 +1000)]
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>
Richard Henderson [Fri, 3 Feb 2023 22:58:12 +0000 (12:58 -1000)]
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>
Eric Auger [Fri, 3 Feb 2023 17:15:10 +0000 (18:15 +0100)]
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>
Peter Maydell [Sat, 4 Feb 2023 10:19:55 +0000 (10:19 +0000)]
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: Signature made Sat 04 Feb 2023 06:59:20 GMT
# gpg: using RSA key
354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# 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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:46 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:45 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:44 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:43 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:42 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:41 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:40 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:39 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:38 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:37 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:36 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:35 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:34 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:33 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:32 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:31 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:30 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:29 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:28 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:27 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:26 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:25 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:24 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:23 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:22 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:21 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:20 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:19 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:18 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:17 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:16 +0000 (13:19 +0100)]
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>
Markus Armbruster [Tue, 24 Jan 2023 12:19:15 +0000 (13:19 +0100)]
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>
Peter Maydell [Fri, 3 Feb 2023 15:33:05 +0000 (15:33 +0000)]
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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# =hk0j
# -----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>
Peter Maydell [Mon, 30 Jan 2023 18:24:59 +0000 (18:24 +0000)]
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
Peter Maydell [Mon, 30 Jan 2023 18:24:58 +0000 (18:24 +0000)]
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
Peter Maydell [Mon, 30 Jan 2023 18:24:57 +0000 (18:24 +0000)]
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
Peter Maydell [Mon, 30 Jan 2023 18:24:56 +0000 (18:24 +0000)]
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
Peter Maydell [Mon, 30 Jan 2023 18:24:55 +0000 (18:24 +0000)]
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
Peter Maydell [Mon, 30 Jan 2023 18:24:54 +0000 (18:24 +0000)]
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
Peter Maydell [Mon, 30 Jan 2023 18:24:53 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HFGITR bits 12..17
Mark up the sysreg definitions for the system instructions
trapped by HFGITR bits 12..17. These bits cover AT address
translation instructions.
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.
3309057-18-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-18-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:52 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HFGITR bits 0..11
Mark up the sysreg definitions for the system instructions
trapped by HFGITR bits 0..11. These bits cover various
cache maintenance operations.
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.
3309057-17-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-17-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:51 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HDFGRTR bits 12..63
Mark up the sysreg definitions for the registers trapped
by HDFGRTR/HDFGWTR bits 12..x.
Bits 12..22 and bit 58 are for PMU registers.
The remaining bits in HDFGRTR/HDFGWTR are for traps on
registers that are part of features we don't implement:
Bits 23..32 and 63 : FEAT_SPE
Bits 33..48 : FEAT_ETE
Bits 50..56 : FEAT_TRBE
Bits 59..61 : FEAT_BRBE
Bit 62 : FEAT_SPEv1p2.
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.
3309057-16-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-16-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:50 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HDFGRTR bits 0..11
Mark up the sysreg definitons for the registers trapped
by HDFGRTR/HDFGWTR bits 0..11. These cover various debug
related registers.
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.
3309057-15-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-15-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:49 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HFGRTR bits 36..63
Mark up the sysreg definitions for the registers trapped
by HFGRTR/HFGWTR bits 36..63.
Of these, some correspond to RAS registers which we implement as
always-UNDEF: these don't need any extra handling for FGT because the
UNDEF-to-EL1 always takes priority over any theoretical
FGT-trap-to-EL2.
Bit 50 (NACCDATA_EL1) is for the ACCDATA_EL1 register which is part
of the FEAT_LS64_ACCDATA feature which we don't yet implement.
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.
3309057-14-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-14-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:48 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HFGRTR bits 24..35
Mark up the sysreg definitions for the registers trapped
by HFGRTR/HFGWTR bits 24..35.
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.
3309057-13-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-13-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:47 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HFGRTR bits 12..23
Mark up the sysreg definitions for the registers trapped
by HFGRTR/HFGWTR bits 12..23.
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.
3309057-12-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-12-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:46 +0000 (18:24 +0000)]
target/arm: Mark up sysregs for HFGRTR bits 0..11
Mark up the sysreg definitions for the registers trapped
by HFGRTR/HFGWTR bits 0..11.
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.
3309057-11-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-11-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:45 +0000 (18:24 +0000)]
target/arm: Implement FGT trapping infrastructure
Implement the machinery for fine-grained traps on normal sysregs.
Any sysreg with a fine-grained trap will set the new field to
indicate which FGT register bit it should trap on.
FGT traps only happen when an AArch64 EL2 enables them for
an AArch64 EL1. They therefore are only relevant for AArch32
cpregs when the cpreg can be accessed from EL0. The logic
in access_check_cp_reg() will check this, so it is safe to
add a .fgt marking to an ARM_CP_STATE_BOTH ARMCPRegInfo.
The DO_BIT and DO_REV_BIT macros define enum constants FGT_##bitname
which can be used to specify the FGT bit, eg
.fgt = FGT_AFSR0_EL1
(We assume that there is no bit name duplication across the FGT
registers, for brevity's sake.)
Subsequent commits will add the .fgt fields to the relevant register
definitions and define the FGT_nnn values for them.
Note that some of the FGT traps are for instructions that we don't
handle via the cpregs mechanisms (mostly these are instruction traps).
Those we will have to handle separately.
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.
3309057-10-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-10-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:44 +0000 (18:24 +0000)]
target/arm: Define the FEAT_FGT registers
Define the system registers which are provided by the
FEAT_FGT fine-grained trap architectural feature:
HFGRTR_EL2, HFGWTR_EL2, HDFGRTR_EL2, HDFGWTR_EL2, HFGITR_EL2
All these registers are a set of bit fields, where each bit is set
for a trap and clear to not trap on a particular system register
access. The R and W register pairs are for system registers,
allowing trapping to be done separately for reads and writes; the I
register is for system instructions where trapping is on instruction
execution.
The data storage in the CPU state struct is arranged as a set of
arrays rather than separate fields so that when we're looking up the
bits for a system register access we can just index into the array
rather than having to use a switch to select a named struct member.
The later FEAT_FGT2 will add extra elements to these arrays.
The field definitions for the new registers are in cpregs.h because
in practice the code that needs them is code that also needs
the cpregs information; cpu.h is included in a lot more files.
We're also going to add some FGT-specific definitions to cpregs.h
in the next commit.
We do not implement HAFGRTR_EL2, because we don't implement
FEAT_AMUv1.
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.
3309057-9-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-9-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:43 +0000 (18:24 +0000)]
target/arm: Disable HSTR_EL2 traps if EL2 is not enabled
The HSTR_EL2 register is not supposed to have an effect unless EL2 is
enabled in the current security state. We weren't checking for this,
which meant that if the guest set up the HSTR_EL2 register we would
incorrectly trap even for accesses from Secure EL0 and EL1.
Add the missing checks. (Other places where we look at HSTR_EL2
for the not-in-v8A bits TTEE and TJDBX are already checking that
we are in NS EL0 or EL1, so there we alredy know EL2 is enabled.)
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.
3309057-8-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-8-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:42 +0000 (18:24 +0000)]
target/arm: Make HSTR_EL2 traps take priority over UNDEF-at-EL1
The semantics of HSTR_EL2 require that it traps cpreg accesses
to EL2 for:
* EL1 accesses
* EL0 accesses, if the access is not UNDEFINED when the
trap bit is 0
(You can see this in the I_ZFGJP priority ordering, where HSTR_EL2
traps from EL1 to EL2 are priority 12, UNDEFs are priority 13, and
HSTR_EL2 traps from EL0 are priority 15.)
However, we don't get this right for EL1 accesses which UNDEF because
the register doesn't exist at all or because its ri->access bits
non-configurably forbid the access. At EL1, check for the HSTR_EL2
trap early, before either of these UNDEF reasons.
We have to retain the HSTR_EL2 check in access_check_cp_reg(),
because at EL0 any kind of UNDEF-to-EL1 (including "no such
register", "bad ri->access" and "ri->accessfn returns 'trap to EL1'")
takes precedence over the trap to EL2. But we only need to do that
check for EL0 now.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20230130182459.
3309057-7-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-7-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:41 +0000 (18:24 +0000)]
target/arm: All UNDEF-at-EL0 traps take priority over HSTR_EL2 traps
The HSTR_EL2 register has a collection of trap bits which allow
trapping to EL2 for AArch32 EL0 or EL1 accesses to coprocessor
registers. The specification of these bits is that when the bit is
set we should trap
* EL1 accesses
* EL0 accesses, if the access is not UNDEFINED when the
trap bit is 0
In other words, all UNDEF traps from EL0 to EL1 take precedence over
the HSTR_EL2 trap to EL2. (Since this is all AArch32, the only kind
of trap-to-EL1 is the UNDEF.)
Our implementation doesn't quite get this right -- we check for traps
in the order:
* no such register
* ARMCPRegInfo::access bits
* HSTR_EL2 trap bits
* ARMCPRegInfo::accessfn
So UNDEFs that happen because of the access bits or because the
register doesn't exist at all correctly take priority over the
HSTR_EL2 trap, but where a register can UNDEF at EL0 because of the
accessfn we are incorrectly always taking the HSTR_EL2 trap. There
aren't many of these, but one example is the PMCR; if you look at the
access pseudocode for this register you can see that UNDEFs taken
because of the value of PMUSERENR.EN are checked before the HSTR_EL2
bit.
Rearrange helper_access_check_cp_reg() so that we always call the
accessfn, and use its return value if it indicates that the access
traps to EL0 rather than continuing to do the HSTR_EL2 check.
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.
3309057-6-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-6-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:40 +0000 (18:24 +0000)]
target/arm: Move do_coproc_insn() syndrome calculation earlier
Rearrange the code in do_coproc_insn() so that we calculate the
syndrome value for a potential trap early; we're about to add a
second check that wants this value earlier than where it is currently
determined.
(Specifically, a trap to EL2 because of HSTR_EL2 should take
priority over an UNDEF to EL1, even when the UNDEF is because
the register does not exist at all or because its ri->access
bits non-configurably fail the access. So the check we put in
for HSTR_EL2 trapping at EL1 (which needs the syndrome) is
going to have to be done before the check "is the ARMCPRegInfo
pointer NULL".)
This commit is just code motion; the change to HSTR_EL2
handling that will use the 'syndrome' variable is in a
subsequent commit.
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.
3309057-5-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-5-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:39 +0000 (18:24 +0000)]
target/arm: Remove CP_ACCESS_TRAP_UNCATEGORIZED_{EL2, EL3}
We added the CPAccessResult values CP_ACCESS_TRAP_UNCATEGORIZED_EL2
and CP_ACCESS_TRAP_UNCATEGORIZED_EL3 purely in order to use them in
the ats_access() function, but doing so was incorrect (a bug fixed in
a previous commit). There aren't any cases where we want an access
function to be able to request a trap to EL2 or EL3 with a zero
syndrome value, so remove these enum values.
As well as cleaning up dead code, the motivation here is that
we'd like to implement fine-grained-trap handling in
helper_access_check_cp_reg(). Although the fine-grained traps
to EL2 are always lower priority than trap-to-same-EL and
higher priority than trap-to-EL3, they are in the middle of
various other kinds of trap-to-EL2. Knowing that a trap-to-EL2
must always for us have the same syndrome (ie that an access
function will return CP_ACCESS_TRAP_EL2 and there is no other
kind of trap-to-EL2 enum value) means we don't have to try
to choose which of the two syndrome values to report if the
access would trap to EL2 both for the fine-grained-trap and
because the access function requires it.
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.
3309057-4-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-4-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:38 +0000 (18:24 +0000)]
target/arm: Correct syndrome for ATS12NSO* at Secure EL1
The AArch32 ATS12NSO* address translation operations are supposed to
trap to either EL2 or EL3 if they're executed at Secure EL1 (which
can only happen if EL3 is AArch64). We implement this, but we got
the syndrome value wrong: like other traps to EL2 or EL3 on an
AArch32 cpreg access, they should report the 0x3 syndrome, not the
0x0 'uncategorized' syndrome. This is clear in the access pseudocode
for these instructions.
Fix the syndrome value for these operations by correcting the
returned value from the ats_access() function.
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.
3309057-3-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-3-peter.maydell@linaro.org
Peter Maydell [Mon, 30 Jan 2023 18:24:37 +0000 (18:24 +0000)]
target/arm: Name AT_S1E1RP and AT_S1E1WP cpregs correctly
The encodings 0,0,C7,C9,0 and 0,0,C7,C9,1 are AT SP1E1RP and AT
S1E1WP, but our ARMCPRegInfo definitions for them incorrectly name
them AT S1E1R and AT S1E1W (which are entirely different
instructions). Fix the names.
(This has no guest-visible effect as the names are for debug purposes
only.)
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.
3309057-2-peter.maydell@linaro.org
Message-id:
20230127175507.
2895013-2-peter.maydell@linaro.org
Marcin Juszkiewicz [Thu, 26 Jan 2023 11:44:16 +0000 (12:44 +0100)]
sbsa-ref: remove cortex-a76 from list of supported cpus
Cortex-A76 supports 40bits of address space. sbsa-ref's memory
starts above this limit.
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20230126114416.
2447685-1-marcin.juszkiewicz@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alexander Graf [Fri, 23 Dec 2022 09:01:07 +0000 (10:01 +0100)]
hw/arm/virt: Make accels in GIC finalize logic explicit
Let's explicitly list out all accelerators that we support when trying to
determine the supported set of GIC versions. KVM was already separate, so
the only missing one is HVF which simply reuses all of TCG's emulation
code and thus has the same compatibility matrix.
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20221223090107.98888-3-agraf@csgraf.de
[PMM: Added qtest to the list of accelerators]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alexander Graf [Fri, 23 Dec 2022 09:01:06 +0000 (10:01 +0100)]
hw/arm/virt: Consolidate GIC finalize logic
Up to now, the finalize_gic_version() code open coded what is essentially
a support bitmap match between host/emulation environment and desired
target GIC type.
This open coding leads to undesirable side effects. For example, a VM with
KVM and -smp 10 will automatically choose GICv3 while the same command
line with TCG will stay on GICv2 and fail the launch.
This patch combines the TCG and KVM matching code paths by making
everything a 2 pass process. First, we determine which GIC versions the
current environment is able to support, then we go through a single
state machine to determine which target GIC mode that means for us.
After this patch, the only user noticable changes should be consolidated
error messages as well as TCG -M virt supporting -smp > 8 automatically.
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Message-id:
20221223090107.98888-2-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alexander Graf [Sat, 28 Jan 2023 22:44:59 +0000 (23:44 +0100)]
hvf: arm: Add support for GICv3
We currently only support GICv2 emulation. To also support GICv3, we will
need to pass a few system registers into their respective handler functions.
This patch adds support for HVF to call into the TCG callbacks for GICv3
system register handlers. This is safe because the GICv3 TCG code is generic
as long as we limit ourselves to EL0 and EL1 - which are the only modes
supported by HVF.
To make sure nobody trips over that, we also annotate callbacks that don't
work in HVF mode, such as EL state change hooks.
With GICv3 support in place, we can run with more than 8 vCPUs.
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Message-id:
20230128224459.70676-1-agraf@csgraf.de
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Evgeny Iakovlev [Mon, 23 Jan 2023 16:23:03 +0000 (17:23 +0100)]
hw/char/pl011: better handling of FIFO flags on LCR reset
Current FIFO handling code does not reset RXFE/RXFF flags when guest
resets FIFO by writing to UARTLCR register, although internal FIFO state
is reset to 0 read count. Actual guest-visible flag update will happen
only on next data read or write attempt. As a result of that any guest
that expects RXFE flag to be set (and RXFF to be cleared) after resetting
FIFO will never see that happen.
Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
20230123162304.26254-5-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Evgeny Iakovlev [Mon, 23 Jan 2023 16:23:02 +0000 (17:23 +0100)]
hw/char/pl011: implement a reset method
PL011 currently lacks a reset method. Implement it.
Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id:
20230123162304.26254-4-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>