Commit Graph

3403 Commits

Author SHA1 Message Date
Akihiko Odaki
dd2f7e2974 target/arm: Remove references to gdb_has_xml
GDB has XML support since 6.7 which was released in 2007.
It's time to remove support for old GDB versions without XML support.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230912224107.29669-10-akihiko.odaki@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231009164104.369749-17-alex.bennee@linaro.org>
2023-10-11 08:46:33 +01:00
Akihiko Odaki
a650683871 hw/core/cpu: Return static value with gdb_arch_name()
All implementations of gdb_arch_name() returns dynamic duplicates of
static strings. It's also unlikely that there will be an implementation
of gdb_arch_name() that returns a truly dynamic value due to the nature
of the function returning a well-known identifiers. Qualify the value
gdb_arch_name() with const and make all of its implementations return
static strings.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230912224107.29669-8-akihiko.odaki@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231009164104.369749-15-alex.bennee@linaro.org>
2023-10-11 08:46:33 +01:00
Akihiko Odaki
48de646280 target/arm: Move the reference to arm-core.xml
Some subclasses overwrite gdb_core_xml_file member but others don't.
Always initialize the member in the subclasses for consistency.

This especially helps for AArch64; in a following change, the file
specified by gdb_core_xml_file is always looked up even if it's going to
be overwritten later. Looking up arm-core.xml results in an error as
it will not be embedded in the AArch64 build.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230912224107.29669-7-akihiko.odaki@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231009164104.369749-14-alex.bennee@linaro.org>
2023-10-11 08:46:33 +01:00
Philippe Mathieu-Daudé
01c85e60a4 meson: Rename target_softmmu_arch -> target_system_arch
Finish the convertion started with commit de6cd7599b
("meson: Replace softmmu_ss -> system_ss"). If the
$target_type is 'system', then use the target_system_arch[]
source set :)

Mechanical change doing:

  $ sed -i -e s/target_softmmu_arch/target_system_arch/g \
      $(git grep -l target_softmmu_arch)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004090629.37473-13-philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-10-07 19:03:07 +02:00
Richard Henderson
8fa08d7ec7 accel/tcg: Remove cpu_set_cpustate_pointers
This function is now empty, so remove it.  In the case of
m68k and tricore, this empties the class instance initfn,
so remove those as well.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-04 11:03:54 -07:00
Richard Henderson
b77af26e97 accel/tcg: Replace CPUState.env_ptr with cpu_env()
Reviewed-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-04 11:03:54 -07:00
Richard Henderson
ad75a51e84 tcg: Rename cpu_env to tcg_env
Allow the name 'cpu_env' to be used for something else.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-03 08:01:02 -07:00
Richard Henderson
3b3d7df545 accel/tcg: Move CPUNegativeOffsetState into CPUState
Retain the separate structure to emphasize its importance.
Enforce CPUArchState always follows CPUState without padding.

Reviewed-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-03 08:01:02 -07:00
Richard Henderson
61cd357698 target/arm: Remove size and alignment for cpu subclasses
Inherit the size and alignment from TYPE_ARM_CPU.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-03 08:01:02 -07:00
Anton Johansson
a81fef4b64 target/arm: Replace TARGET_PAGE_ENTRY_EXTRA
TARGET_PAGE_ENTRY_EXTRA is a macro that allows guests to specify additional
fields for caching with the full TLB entry.  This macro is replaced with
a union in CPUTLBEntryFull, thus making CPUTLB target-agnostic at the
cost of slightly inflated CPUTLBEntryFull for non-arm guests.

Note, this is needed to ensure that fields in CPUTLB don't vary in
offset between various targets.

(arm is the only guest actually making use of this feature.)

Signed-off-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230912153428.17816-2-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-03 08:01:02 -07:00
Philippe Mathieu-Daudé
5a3d2c3562 target/arm/hvf: Clean up local variable shadowing
Per Peter Maydell analysis [*]:

  The hvf_vcpu_exec() function is not documented, but in practice
  its caller expects it to return either EXCP_DEBUG (for "this was
  a guest debug exception you need to deal with") or something else
  (presumably the intention being 0 for OK).

  The hvf_sysreg_read() and hvf_sysreg_write() functions are also not
  documented, but they return 0 on success, or 1 for a completely
  unrecognized sysreg where we've raised the UNDEF exception (but
  not if we raised an UNDEF exception for an unrecognized GIC sysreg --
  I think this is a bug). We use this return value to decide whether
  we need to advance the PC past the insn or not. It's not the same
  as the return value we want to return from hvf_vcpu_exec().

  Retain the variable as locally scoped but give it a name that
  doesn't clash with the other function-scoped variable.

This fixes:

  target/arm/hvf/hvf.c:1936:13: error: declaration shadows a local variable [-Werror,-Wshadow]
        int ret = 0;
            ^
  target/arm/hvf/hvf.c:1807:9: note: previous declaration is here
    int ret;
        ^
[*] https://lore.kernel.org/qemu-devel/CAFEAcA_e+fU6JKtS+W63wr9cCJ6btu_hT_ydZWOwC0kBkDYYYQ@mail.gmail.com/

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-4-philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-09-29 10:07:14 +02:00
Philippe Mathieu-Daudé
d54deb2a07 target/arm/tcg: Clean up local variable shadowing
Fix:

  target/arm/tcg/translate-m-nocp.c: In function ‘gen_M_fp_sysreg_read’:
  target/arm/tcg/translate-m-nocp.c:509:18: warning: declaration of ‘tmp’ shadows a previous local [-Wshadow=compatible-local]
    509 |         TCGv_i32 tmp = load_cpu_field(v7m.fpdscr[M_REG_NS]);
        |                  ^~~
  target/arm/tcg/translate-m-nocp.c:433:14: note: shadowed declaration is here
    433 |     TCGv_i32 tmp;
        |              ^~~
       ---

  target/arm/tcg/mve_helper.c: In function ‘helper_mve_vqshlsb’:
  target/arm/tcg/mve_helper.c:1259:19: warning: declaration of ‘r’ shadows a previous local [-Wshadow=compatible-local]
   1259 |         typeof(N) r = FN(N, (int8_t)(M), sizeof(N) * 8, ROUND, &su32);  \
        |                   ^
  target/arm/tcg/mve_helper.c:1267:5: note: in expansion of macro ‘WRAP_QRSHL_HELPER’
   1267 |     WRAP_QRSHL_HELPER(do_sqrshl_bhs, N, M, false, satp)
        |     ^~~~~~~~~~~~~~~~~
  target/arm/tcg/mve_helper.c:927:22: note: in expansion of macro ‘DO_SQSHL_OP’
    927 |             TYPE r = FN(n[H##ESIZE(e)], m[H##ESIZE(e)], &sat);          \
        |                      ^~
  target/arm/tcg/mve_helper.c:945:5: note: in expansion of macro ‘DO_2OP_SAT’
    945 |     DO_2OP_SAT(OP##b, 1, int8_t, FN)            \
        |     ^~~~~~~~~~
  target/arm/tcg/mve_helper.c:1277:1: note: in expansion of macro ‘DO_2OP_SAT_S’
   1277 | DO_2OP_SAT_S(vqshls, DO_SQSHL_OP)
        | ^~~~~~~~~~~~
       ---

  target/arm/tcg/mve_helper.c: In function ‘do_sqrshl48_d’:
  target/arm/tcg/mve_helper.c:2463:17: warning: declaration of ‘extval’ shadows a previous local [-Wshadow=compatible-local]
   2463 |         int64_t extval = sextract64(src << shift, 0, 48);
        |                 ^~~~~~
  target/arm/tcg/mve_helper.c:2443:18: note: shadowed declaration is here
   2443 |     int64_t val, extval;
        |                  ^~~~~~
       ---

  target/arm/tcg/mve_helper.c: In function ‘do_uqrshl48_d’:
  target/arm/tcg/mve_helper.c:2495:18: warning: declaration of ‘extval’ shadows a previous local [-Wshadow=compatible-local]
   2495 |         uint64_t extval = extract64(src << shift, 0, 48);
        |                  ^~~~~~
  target/arm/tcg/mve_helper.c:2479:19: note: shadowed declaration is here
   2479 |     uint64_t val, extval;
        |                   ^~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904161235.84651-3-philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2023-09-29 10:07:14 +02:00
Peter Maydell
706a92fbfa target/arm: Enable FEAT_MOPS for CPU 'max'
Enable FEAT_MOPS on the AArch64 'max' CPU, and add it to
the list of features we implement.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-13-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
5d7b37b5f6 target/arm: Implement the CPY* instructions
The FEAT_MOPS CPY* instructions implement memory copies. These
come in both "always forwards" (memcpy-style) and "overlap OK"
(memmove-style) flavours.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-12-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
69c51dc372 target/arm: Implement MTE tag-checking functions for FEAT_MOPS copies
The FEAT_MOPS memory copy operations need an extra helper routine
for checking for MTE tag checking failures beyond the ones we
already added for memory set operations:
 * mte_mops_probe_rev() does the same job as mte_mops_probe(), but
   it checks tags starting at the provided address and working
   backwards, rather than forwards

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-11-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
6087df5744 target/arm: Implement the SETG* instructions
The FEAT_MOPS SETG* instructions are very similar to the SET*
instructions, but as well as setting memory contents they also
set the MTE tags. They are architecturally required to operate
on tag-granule aligned regions only.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-10-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
179e9a3bac target/arm: Define new TB flag for ATA0
Currently the only tag-setting instructions always do so in the
context of the current EL, and so we only need one ATA bit in the TB
flags.  The FEAT_MOPS SETG instructions include ones which set tags
for a non-privileged access, so we now also need the equivalent "are
tags enabled?" information for EL0.

Add the new TB flag, and convert the existing 'bool ata' field in
DisasContext to a 'bool ata[2]' that can be indexed by the is_unpriv
bit in an instruction, similarly to mte[2].

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-9-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
0e92818887 target/arm: Implement the SET* instructions
Implement the SET* instructions which collectively implement a
"memset" operation.  These come in a set of three, eg SETP
(prologue), SETM (main), SETE (epilogue), and each of those has
different flavours to indicate whether memory accesses should be
unpriv or non-temporal.

This commit does not include the "memset with tag setting"
SETG* instructions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-8-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
8163998920 target/arm: Implement MTE tag-checking functions for FEAT_MOPS
The FEAT_MOPS instructions need a couple of helper routines that
check for MTE tag failures:
 * mte_mops_probe() checks whether there is going to be a tag
   error in the next up-to-a-page worth of data
 * mte_check_fail() is an existing function to record the fact
   of a tag failure, which we need to make global so we can
   call it from helper-a64.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-7-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
aa03378bcc target/arm: New function allocation_tag_mem_probe()
For the FEAT_MOPS operations, the existing allocation_tag_mem()
function almost does what we want, but it will take a watchpoint
exception even for an ra == 0 probe request, and it requires that the
caller guarantee that the memory is accessible.  For FEAT_MOPS we
want a function that will not take any kind of exception, and will
return NULL for the not-accessible case.

Rename allocation_tag_mem() to allocation_tag_mem_probe() and add an
extra 'probe' argument that lets us distinguish these cases;
allocation_tag_mem() is now a wrapper that always passes 'false'.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-6-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
31aaaddecb target/arm: Define syndrome function for MOPS exceptions
The FEAT_MOPS memory operations can raise a Memory Copy or Memory Set
exception if a copy or set instruction is executed when the CPU
register state is not correct for that instruction. Define the
usual syn_* function that constructs the syndrome register value
for these exceptions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-5-peter.maydell@linaro.org
2023-09-21 16:07:14 +01:00
Peter Maydell
81466e4bad target/arm: Pass unpriv bool to get_a64_user_mem_index()
In every place that we call the get_a64_user_mem_index() function
we do it like this:
 memidx = a->unpriv ? get_a64_user_mem_index(s) : get_mem_index(s);
Refactor so the caller passes in the bool that says whether they
want the 'unpriv' or 'normal' mem_index rather than having to
do the ?: themselves.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230912140434.1333369-4-peter.maydell@linaro.org
2023-09-21 16:07:13 +01:00
Peter Maydell
dbc678f90a target/arm: Implement FEAT_MOPS enable bits
FEAT_MOPS defines a handful of new enable bits:
 * HCRX_EL2.MSCEn, SCTLR_EL1.MSCEn, SCTLR_EL2.MSCen:
   define whether the new insns should UNDEF or not
 * HCRX_EL2.MCE2: defines whether memops exceptions from
   EL1 should be taken to EL1 or EL2

Since we don't sanitise what bits can be written for the SCTLR
registers, we only need to handle the new bits in HCRX_EL2, and
define SCTLR_MSCEN for the new SCTLR bit value.

The precedence of "HCRX bits acts as 0 if SCR_EL3.HXEn is 0" versus
"bit acts as 1 if EL2 disabled" is not clear from the register
definition text, but it is clear in the CheckMOPSEnabled()
pseudocode(), so we follow that.  We'll have to check whether other
bits we need to implement in future follow the same logic or not.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-3-peter.maydell@linaro.org
2023-09-21 16:07:13 +01:00
Peter Maydell
903dbefc2b target/arm: Don't skip MTE checks for LDRT/STRT at EL0
The LDRT/STRT "unprivileged load/store" instructions behave like
normal ones if executed at EL0. We handle this correctly for
the load/store semantics, but get the MTE checking wrong.

We always look at s->mte_active[is_unpriv] to see whether we should
be doing MTE checks, but in hflags.c when we set the TB flags that
will be used to fill the mte_active[] array we only set the
MTE0_ACTIVE bit if UNPRIV is true (i.e.  we are not at EL0).

This means that a LDRT at EL0 will see s->mte_active[1] as 0,
and will not do MTE checks even when MTE is enabled.

To avoid the translate-time code having to do an explicit check on
s->unpriv to see if it is OK to index into the mte_active[] array,
duplicate MTE_ACTIVE into MTE0_ACTIVE when UNPRIV is false.

(This isn't a very serious bug because generally nobody executes
LDRT/STRT at EL0, because they have no use there.)

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230912140434.1333369-2-peter.maydell@linaro.org
2023-09-21 16:07:13 +01:00
Peter Maydell
0b5ad31d2a target/arm: Remove unused allocation_tag_mem() argument
The allocation_tag_mem() function takes an argument tag_size,
but it never uses it. Remove the argument. In mte_probe_int()
in particular this also lets us delete the code computing
the value we were passing in.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-09-21 16:07:13 +01:00
Peter Maydell
3039b090f2 target/arm: Implement FEAT_HBC
FEAT_HBC (Hinted conditional branches) provides a new instruction
BC.cond, which behaves exactly like the existing B.cond except
that it provides a hint to the branch predictor about the
likely behaviour of the branch.

Since QEMU does not implement branch prediction, we can treat
this identically to B.cond.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-21 16:07:13 +01:00
Peter Maydell
5f7b71fb99 target/arm: Update user-mode ID reg mask values
For user-only mode we reveal a subset of the AArch64 ID registers
to the guest, to emulate the kernel's trap-and-emulate-ID-regs
handling. Update the feature bit masks to match upstream kernel
commit a48fa7efaf1161c1c.

None of these features are yet implemented by QEMU, so this
doesn't yet have a behavioural change, but implementation of
FEAT_MOPS and FEAT_HBC is imminent.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-21 14:45:58 +01:00
Peter Maydell
4d9eb29643 target/arm: Update AArch64 ID register field definitions
Update our AArch64 ID register field definitions from the 2023-06
system register XML release:
 https://developer.arm.com/documentation/ddi0601/2023-06/

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-21 14:45:58 +01:00
Stefan Hajnoczi
d7754940d7 *: Delete checks for old host definitions
tcg/loongarch64: Generate LSX instructions
 fpu: Add conversions between bfloat16 and [u]int8
 fpu: Handle m68k extended precision denormals properly
 accel/tcg: Improve cputlb i/o organization
 accel/tcg: Simplify tlb_plugin_lookup
 accel/tcg: Remove false-negative halted assertion
 tcg: Add gvec compare with immediate and scalar operand
 tcg/aarch64: Emit BTI insns at jump landing pads
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Merge tag 'pull-tcg-20230915-2' of https://gitlab.com/rth7680/qemu into staging

*: Delete checks for old host definitions
tcg/loongarch64: Generate LSX instructions
fpu: Add conversions between bfloat16 and [u]int8
fpu: Handle m68k extended precision denormals properly
accel/tcg: Improve cputlb i/o organization
accel/tcg: Simplify tlb_plugin_lookup
accel/tcg: Remove false-negative halted assertion
tcg: Add gvec compare with immediate and scalar operand
tcg/aarch64: Emit BTI insns at jump landing pads

[Resolved conflict between CPUINFO_PMULL and CPUINFO_BTI.
--Stefan]

* tag 'pull-tcg-20230915-2' of https://gitlab.com/rth7680/qemu: (39 commits)
  tcg: Map code_gen_buffer with PROT_BTI
  tcg/aarch64: Emit BTI insns at jump landing pads
  util/cpuinfo-aarch64: Add CPUINFO_BTI
  tcg: Add tcg_out_tb_start backend hook
  fpu: Handle m68k extended precision denormals properly
  fpu: Add conversions between bfloat16 and [u]int8
  accel/tcg: Introduce do_st16_mmio_leN
  accel/tcg: Introduce do_ld16_mmio_beN
  accel/tcg: Merge io_writex into do_st_mmio_leN
  accel/tcg: Merge io_readx into do_ld_mmio_beN
  accel/tcg: Replace direct use of io_readx/io_writex in do_{ld,st}_1
  accel/tcg: Merge cpu_transaction_failed into io_failed
  plugin: Simplify struct qemu_plugin_hwaddr
  accel/tcg: Use CPUTLBEntryFull.phys_addr in io_failed
  accel/tcg: Split out io_prepare and io_failed
  accel/tcg: Simplify tlb_plugin_lookup
  target/arm: Use tcg_gen_gvec_cmpi for compare vs 0
  tcg: Add gvec compare with immediate and scalar operand
  tcg/loongarch64: Implement 128-bit load & store
  tcg/loongarch64: Lower rotli_vec to vrotri
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-09-19 13:20:54 -04:00
Richard Henderson
e8967b6152 target/arm: Use tcg_gen_gvec_cmpi for compare vs 0
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230831030904.1194667-3-richard.henderson@linaro.org>
2023-09-16 14:57:15 +00:00
Richard Henderson
a50cfdf0be target/arm: Use clmul_64
Use generic routine for 64-bit carry-less multiply.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 13:57:00 +00:00
Richard Henderson
bae25f648e target/arm: Use clmul_32* routines
Use generic routines for 32-bit carry-less multiply.
Remove our local version of pmull_d.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 13:57:00 +00:00
Richard Henderson
c6f0dcb1fd target/arm: Use clmul_16* routines
Use generic routines for 16-bit carry-less multiply.
Remove our local version of pmull_w.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 13:57:00 +00:00
Richard Henderson
8e3da4c716 target/arm: Use clmul_8* routines
Use generic routines for 8-bit carry-less multiply.
Remove our local version of pmull_h.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-15 13:56:59 +00:00
Stefan Hajnoczi
cb6c406e26 First RISC-V PR for 8.2
* Remove 'host' CPU from TCG
  * riscv_htif Fixup printing on big endian hosts
  * Add zmmul isa string
  * Add smepmp isa string
  * Fix page_check_range use in fault-only-first
  * Use existing lookup tables for MixColumns
  * Add RISC-V vector cryptographic instruction set support
  * Implement WARL behaviour for mcountinhibit/mcounteren
  * Add Zihintntl extension ISA string to DTS
  * Fix zfa fleq.d and fltq.d
  * Fix upper/lower mtime write calculation
  * Make rtc variable names consistent
  * Use abi type for linux-user target_ucontext
  * Add RISC-V KVM AIA Support
  * Fix riscv,pmu DT node path in the virt machine
  * Update CSR bits name for svadu extension
  * Mark zicond non-experimental
  * Fix satp_mode_finalize() when satp_mode.supported = 0
  * Fix non-KVM --enable-debug build
  * Add new extensions to hwprobe
  * Use accelerated helper for AES64KS1I
  * Allocate itrigger timers only once
  * Respect mseccfg.RLB for pmpaddrX changes
  * Align the AIA model to v1.0 ratified spec
  * Don't read the CSR in riscv_csrrw_do64
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Merge tag 'pull-riscv-to-apply-20230911' of https://github.com/alistair23/qemu into staging

First RISC-V PR for 8.2

 * Remove 'host' CPU from TCG
 * riscv_htif Fixup printing on big endian hosts
 * Add zmmul isa string
 * Add smepmp isa string
 * Fix page_check_range use in fault-only-first
 * Use existing lookup tables for MixColumns
 * Add RISC-V vector cryptographic instruction set support
 * Implement WARL behaviour for mcountinhibit/mcounteren
 * Add Zihintntl extension ISA string to DTS
 * Fix zfa fleq.d and fltq.d
 * Fix upper/lower mtime write calculation
 * Make rtc variable names consistent
 * Use abi type for linux-user target_ucontext
 * Add RISC-V KVM AIA Support
 * Fix riscv,pmu DT node path in the virt machine
 * Update CSR bits name for svadu extension
 * Mark zicond non-experimental
 * Fix satp_mode_finalize() when satp_mode.supported = 0
 * Fix non-KVM --enable-debug build
 * Add new extensions to hwprobe
 * Use accelerated helper for AES64KS1I
 * Allocate itrigger timers only once
 * Respect mseccfg.RLB for pmpaddrX changes
 * Align the AIA model to v1.0 ratified spec
 * Don't read the CSR in riscv_csrrw_do64

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# gpg: Signature made Mon 11 Sep 2023 02:42:27 EDT
# gpg:                using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65  9296 AF7C 9513 0C53 8013

* tag 'pull-riscv-to-apply-20230911' of https://github.com/alistair23/qemu: (45 commits)
  target/riscv: don't read CSR in riscv_csrrw_do64
  target/riscv: Align the AIA model to v1.0 ratified spec
  target/riscv/pmp.c: respect mseccfg.RLB for pmpaddrX changes
  target/riscv: Allocate itrigger timers only once
  target/riscv: Use accelerated helper for AES64KS1I
  linux-user/riscv: Add new extensions to hwprobe
  hw/intc/riscv_aplic.c fix non-KVM --enable-debug build
  hw/riscv/virt.c: fix non-KVM --enable-debug build
  riscv: zicond: make non-experimental
  target/riscv: fix satp_mode_finalize() when satp_mode.supported = 0
  target/riscv: Update CSR bits name for svadu extension
  hw/riscv: virt: Fix riscv,pmu DT node path
  target/riscv: select KVM AIA in riscv virt machine
  target/riscv: update APLIC and IMSIC to support KVM AIA
  target/riscv: Create an KVM AIA irqchip
  target/riscv: check the in-kernel irqchip support
  target/riscv: support the AIA device emulation with KVM enabled
  linux-user/riscv: Use abi type for target_ucontext
  hw/intc: Make rtc variable names consistent
  hw/intc: Fix upper/lower mtime write calculation
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-09-11 09:12:12 -04:00
Stefan Hajnoczi
a7e8e30e7c target-arm queue:
* New CPU type: cortex-a710
  * Implement new architectural features:
     - FEAT_PACQARMA3
     - FEAT_EPAC
     - FEAT_Pauth2
     - FEAT_FPAC
     - FEAT_FPACCOMBINE
     - FEAT_TIDCP1
  * Xilinx Versal: Model the CFU/CFI
  * Implement RMR_ELx registers
  * Implement handling of HCR_EL2.TIDCP trap bit
  * arm/kvm: Enable support for KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE
  * hw/intc/arm_gicv3_its: Avoid maybe-uninitialized error in get_vte()
  * target/arm: Do not use gen_mte_checkN in trans_STGP
  * arm64: Restore trapless ptimer access
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Merge tag 'pull-target-arm-20230908' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * New CPU type: cortex-a710
 * Implement new architectural features:
    - FEAT_PACQARMA3
    - FEAT_EPAC
    - FEAT_Pauth2
    - FEAT_FPAC
    - FEAT_FPACCOMBINE
    - FEAT_TIDCP1
 * Xilinx Versal: Model the CFU/CFI
 * Implement RMR_ELx registers
 * Implement handling of HCR_EL2.TIDCP trap bit
 * arm/kvm: Enable support for KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE
 * hw/intc/arm_gicv3_its: Avoid maybe-uninitialized error in get_vte()
 * target/arm: Do not use gen_mte_checkN in trans_STGP
 * arm64: Restore trapless ptimer access

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# gpg: Signature made Fri 08 Sep 2023 13:05:13 EDT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20230908' of https://git.linaro.org/people/pmaydell/qemu-arm: (26 commits)
  arm/kvm: Enable support for KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE
  target/arm: Enable SCTLR_EL1.TIDCP for user-only
  target/arm: Implement FEAT_TIDCP1
  target/arm: Implement HCR_EL2.TIDCP
  target/arm: Implement cortex-a710
  target/arm: Implement RMR_ELx
  arm64: Restore trapless ptimer access
  target/arm: Do not use gen_mte_checkN in trans_STGP
  hw/arm/versal: Connect the CFRAME_REG and CFRAME_BCAST_REG
  hw/arm/xlnx-versal: Connect the CFU_APB, CFU_FDRO and CFU_SFR
  hw/misc: Introduce a model of Xilinx Versal's CFRAME_BCAST_REG
  hw/misc: Introduce a model of Xilinx Versal's CFRAME_REG
  hw/misc/xlnx-versal-cfu: Introduce a model of Xilinx Versal's CFU_SFR
  hw/misc/xlnx-versal-cfu: Introduce a model of Xilinx Versal CFU_FDRO
  hw/misc: Introduce a model of Xilinx Versal's CFU_APB
  hw/misc: Introduce the Xilinx CFI interface
  hw/intc/arm_gicv3_its: Avoid maybe-uninitialized error in get_vte()
  target/arm: Implement FEAT_FPAC and FEAT_FPACCOMBINE
  target/arm: Inform helpers whether a PAC instruction is 'combined'
  target/arm: Implement FEAT_Pauth2
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-09-11 09:10:37 -04:00
Max Chou
f6ef550fe5 crypto: Create sm4_subword
Allows sharing of sm4_subword between different targets.

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Max Chou <max.chou@sifive.com>
Message-ID: <20230711165917.2629866-14-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-09-11 11:45:55 +10:00
Shameer Kolothum
c8f2eb5d41 arm/kvm: Enable support for KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE
Now that we have Eager Page Split support added for ARM in the kernel,
enable it in Qemu. This adds,
 -eager-split-size to -accel sub-options to set the eager page split chunk size.
 -enable KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE.

The chunk size specifies how many pages to break at a time, using a
single allocation. Bigger the chunk size, more pages need to be
allocated ahead of time.

Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Message-id: 20230905091246.1931-1-shameerali.kolothum.thodi@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:36 +01:00
Richard Henderson
d03396a8bb target/arm: Enable SCTLR_EL1.TIDCP for user-only
The linux kernel detects and enables this bit.  Once trapped,
EC_SYSTEMREGISTERTRAP is treated like EC_UNCATEGORIZED, so
no changes required within linux-user/aarch64/cpu_loop.c.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230831232441.66020-6-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:35 +01:00
Richard Henderson
9cd0c0dec9 target/arm: Implement FEAT_TIDCP1
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230831232441.66020-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:35 +01:00
Richard Henderson
27920d3d1d target/arm: Implement HCR_EL2.TIDCP
Perform the check for EL2 enabled in the security space and the
TIDCP bit in an out-of-line helper.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230831232441.66020-4-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:35 +01:00
Richard Henderson
e3d45c0a89 target/arm: Implement cortex-a710
The cortex-a710 is a first generation ARMv9.0-A processor.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230831232441.66020-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:35 +01:00
Richard Henderson
97198a7dd1 target/arm: Implement RMR_ELx
Provide a stub implementation, as a write is a "request".

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230831232441.66020-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:35 +01:00
Colton Lewis
682814e2a3 arm64: Restore trapless ptimer access
Due to recent KVM changes, QEMU is setting a ptimer offset resulting
in unintended trap and emulate access and a consequent performance
hit. Filter out the PTIMER_CNT register to restore trapless ptimer
access.

Quoting Andrew Jones:

Simply reading the CNT register and writing back the same value is
enough to set an offset, since the timer will have certainly moved
past whatever value was read by the time it's written.  QEMU
frequently saves and restores all registers in the get-reg-list array,
unless they've been explicitly filtered out (with Linux commit
680232a94c12, KVM_REG_ARM_PTIMER_CNT is now in the array). So, to
restore trapless ptimer accesses, we need a QEMU patch to filter out
the register.

See
https://lore.kernel.org/kvmarm/gsntttsonus5.fsf@coltonlewis-kvm.c.googlers.com/T/#m0770023762a821db2a3f0dd0a7dc6aa54e0d0da9
for additional context.

Cc: qemu-stable@nongnu.org
Signed-off-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Colton Lewis <coltonlewis@google.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Colton Lewis <coltonlewis@google.com>
Message-id: 20230831190052.129045-1-coltonlewis@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:35 +01:00
Richard Henderson
44e0ddee8e target/arm: Do not use gen_mte_checkN in trans_STGP
STGP writes to tag memory, it does not check it.
This happened to work because we wrote tag memory first
so that the check always succeeded.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230901203103.136408-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 16:41:35 +01:00
Aaron Lindsay
8a69a42340 target/arm: Implement FEAT_FPAC and FEAT_FPACCOMBINE
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-10-richard.henderson@linaro.org
Message-Id: <20230609172324.982888-8-aaron@os.amperecomputing.com>
[rth: Simplify fpac comparison, reusing cmp_mask]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 12:51:01 +01:00
Aaron Lindsay
28b9dcb74b target/arm: Inform helpers whether a PAC instruction is 'combined'
An instruction is a 'combined' Pointer Authentication instruction
if it does something in addition to PAC -- for instance, branching
to or loading an address from the authenticated pointer.

Knowing whether a PAC operation is 'combined' is needed to
implement FEAT_FPACCOMBINE.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-9-richard.henderson@linaro.org
Message-Id: <20230609172324.982888-7-aaron@os.amperecomputing.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 12:50:44 +01:00
Aaron Lindsay
c7c807f6dd target/arm: Implement FEAT_Pauth2
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-8-richard.henderson@linaro.org
Message-Id: <20230609172324.982888-6-aaron@os.amperecomputing.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 12:50:44 +01:00
Aaron Lindsay
c3ccd5669e target/arm: Implement FEAT_EPAC
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-7-richard.henderson@linaro.org
Message-Id: <20230609172324.982888-5-aaron@os.amperecomputing.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 12:50:44 +01:00
Richard Henderson
399e5e7125 target/arm: Implement FEAT_PACQARMA3
Implement the QARMA3 cryptographic algorithm for PAC calculation.
Implement a cpu feature to select the algorithm and document it.

Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-6-richard.henderson@linaro.org
Message-Id: <20230609172324.982888-4-aaron@os.amperecomputing.com>
[rth: Merge cpu feature addition from another patch.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-09-08 12:50:44 +01:00