When TCG is disabled this part of the code should not be reachable, so
wrap it with an ifdef for now.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This function is needed by common code (ptw.c), so move it along with
the other regime_* functions in internal.h. When we enable the build
without TCG, the tlb_helper.c file will not be present.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The hflags are used only for TCG code, so introduce a new file
hflags.c to keep that code.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is in preparation to moving the hflags code into its own file
under the tcg/ directory.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce the target/arm/tcg directory. Its purpose is to hold the TCG
code that is selected by CONFIG_TCG.
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The next few patches will move helpers under CONFIG_TCG. We'd prefer
to keep the debug helpers and debug registers close together, so
rearrange the file a bit to be able to wrap the helpers with a TCG
ifdef.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is in preparation for restricting compilation of some parts of
debug_helper.c to TCG only.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* A triplet of cleanups to the kernel/initrd loader that avoids
duplication between the various boards.
* Weiwei Li, Daniel Henrique Barboza, and Liu Zhiwei have been added as
reviewers. Thanks for the help!
* A fix for PMP matching to avoid incorrectly appling the default
permissions on PMP permission violations.
* A cleanup to avoid an unnecessary avoid env_archcpu() in
cpu_get_tb_cpu_state().
* Fixes for the vector slide instructions to avoid truncating 64-bit
values (such as doubles) on 32-bit targets.
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Merge tag 'pull-riscv-to-apply-20230224' of github.com:palmer-dabbelt/qemu into staging
Fourth RISC-V PR for QEMU 8.0, Attempt 2
* A triplet of cleanups to the kernel/initrd loader that avoids
duplication between the various boards.
* Weiwei Li, Daniel Henrique Barboza, and Liu Zhiwei have been added as
reviewers. Thanks for the help!
* A fix for PMP matching to avoid incorrectly appling the default
permissions on PMP permission violations.
* A cleanup to avoid an unnecessary avoid env_archcpu() in
cpu_get_tb_cpu_state().
* Fixes for the vector slide instructions to avoid truncating 64-bit
values (such as doubles) on 32-bit targets.
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# gpg: Signature made Fri 24 Feb 2023 18:49:35 GMT
# gpg: using RSA key 2B3C3747446843B24A943A7A2E1319F35FBB1889
# gpg: issuer "palmer@dabbelt.com"
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [unknown]
# gpg: aka "Palmer Dabbelt <palmerdabbelt@google.com>" [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: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
# Subkey fingerprint: 2B3C 3747 4468 43B2 4A94 3A7A 2E13 19F3 5FBB 1889
* tag 'pull-riscv-to-apply-20230224' of github.com:palmer-dabbelt/qemu:
target/riscv: Fix vslide1up.vf and vslide1down.vf
target/riscv: avoid env_archcpu() in cpu_get_tb_cpu_state()
target/riscv: Smepmp: Skip applying default rules when address matches
MAINTAINERS: Add some RISC-V reviewers
target/riscv: Remove privileged spec version restriction for RVV
hw/riscv/boot.c: make riscv_load_initrd() static
hw/riscv/boot.c: consolidate all kernel init in riscv_load_kernel()
hw/riscv: handle 32 bit CPUs kernel_entry in riscv_load_kernel()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
vslide1up_##BITWIDTH is used by the vslide1up.vx and vslide1up.vf. So its
scalar input should be uint64_t to hold the 64 bits float register.And the
same for vslide1down_##BITWIDTH.
This bug is caught when run these instructions on qemu-riscv32.
Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-ID: <20230213094550.29621-1-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
We have a RISCVCPU *cpu pointer available at the start of the function.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-ID: <20230210123836.506286-1-dbarboza@ventanamicro.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
When MSECCFG.MML is set, after checking the address range in PMP if the
asked permissions are not same as programmed in PMP, the default
permissions are applied. This should only be the case when there
is no matching address is found.
This patch skips applying default rules when matching address range
is found. It returns the index of the match PMP entry.
Fixes: 824cac681c (target/riscv: Fix PMP propagation for tlb)
Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230209055206.229392-1-hchauhan@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
The RVV specification does not require that the core needs to support
the privileged specification v1.12.0 to support RVV, and there is no
dependency from ISA level.
This commit removes the restriction from both RVV CSRs and extension CPU
ISA string.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230208063209.27279-1-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230207075115.1525-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Mirroring the upstream gdb xml files, the two stack boundary
registers are separated out.
Reviewed-by: Edgar E. Iglesias <edgar@zeroasic.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Before this commit, when GDB attached an OS working on QEMU, order of FPU
stack registers printed by GDB command 'info float' was wrong. There was a
bug causing the problem in 'g' packets sent by QEMU to GDB. The packets have
values of registers of machine emulated by QEMU containing FPU stack
registers. There are 2 ways to specify a x87 FPU stack register. The first
is specifying by absolute indexed register names (R0, ..., R7). The second
is specifying by stack top relative indexed register names (ST0, ..., ST7).
Values of the FPU stack registers should be located in 'g' packet and be
ordered by the relative index. But QEMU had located these registers ordered
by the absolute index. After this commit, when QEMU reads registers to make
a 'g' packet, QEMU specifies FPU stack registers by the relative index.
Then, the registers are ordered correctly in the packet. As a result, GDB,
the packet receiver, can print FPU stack registers in the correct order.
Signed-off-by: TaiseiIto <taisei1212@outlook.jp>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <TY0PR0101MB4285923FBE9AD97CE832D95BA4E59@TY0PR0101MB4285.apcprd01.prod.exchangelabs.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since commit cf7c6d1004 ("target/arm: Split out cpregs.h") we now have
a cpregs.h header which is more suitable for this code.
Code moved verbatim.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Move this earlier to make the next patch diff cleaner. While here
update the comment slightly to not give the impression that the
misalignment affects only TCG.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
for "all" builds (tcg + kvm), we want to avoid doing
the psci check if tcg is built-in, but not enabled.
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
make it clearer from the name that this is a tcg-only function.
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
While dozens of files include "cpu.h", only 3 files require
these NVIC helper declarations.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230206223502.25122-12-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There is no point in using a void pointer to access the NVIC.
Use the real type to avoid casting it while debugging.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230206223502.25122-11-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230206223502.25122-10-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230206223502.25122-9-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230206223502.25122-8-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Although the 'eabi' field is only used in user emulation where
CPU reset doesn't occur, it doesn't belong to the area to reset.
Move it after the 'end_reset_fields' for consistency.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230206223502.25122-7-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230206223502.25122-6-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230206223502.25122-5-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
arm_v7m_mmu_idx_all() and arm_v7m_mmu_idx_for_secstate_and_priv()
are only used for system emulation in m_helper.c.
Move the definitions to avoid prototype forward declarations.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230206223502.25122-4-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230206223502.25122-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Failure to truncate the inputs results in garbage for the carry-out.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1373
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230115012103.3131796-1-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When ADCX is followed by ADOX or vice versa, the second instruction's
carry comes from EFLAGS and the condition codes use the CC_OP_ADCOX
operation. Retrieving the carry from EFLAGS is handled by this bit
of gen_ADCOX:
tcg_gen_extract_tl(carry_in, cpu_cc_src,
ctz32(cc_op == CC_OP_ADCX ? CC_C : CC_O), 1);
Unfortunately, in this case cc_op has been overwritten by the previous
"if" statement to CC_OP_ADCOX. This works by chance when the first
instruction is ADCX; however, if the first instruction is ADOX,
ADCX will incorrectly take its carry from OF instead of CF.
Fix by moving the computation of the new cc_op at the end of the function.
The included exhaustive test case fails without this patch and passes
afterwards.
Because ADCX/ADOX need not be invoked through the VEX prefix, this
regression bisects to commit 16fc5726a6 ("target/i386: reimplement
0x0f 0x38, add AVX", 2022-10-18). However, the mistake happened a
little earlier, when BMI instructions were rewritten using the new
decoder framework.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1471
Reported-by: Paul Jolly <https://gitlab.com/myitcv>
Fixes: 1d0b926150 ("target/i386: move scalar 0F 38 and 0F 3A instruction to new decoder", 2022-10-18)
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We forgot to set cc_src, which is used for computing C.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1370
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230114180601.2993644-1-richard.henderson@linaro.org>
Cc: qemu-stable@nongnu.org
Fixes: 1d0b926150 ("target/i386: move scalar 0F 38 and 0F 3A instruction to new decoder", 2022-10-18)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There were two problems here: not limiting the input to operand bits,
and not correctly handling large extraction length.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1372
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230114230542.3116013-3-richard.henderson@linaro.org>
Cc: qemu-stable@nongnu.org
Fixes: 1d0b926150 ("target/i386: move scalar 0F 38 and 0F 3A instruction to new decoder", 2022-10-18)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
we were sign extending the result of the load, while the instruction
clearly states that the result should be unsigned.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230202120432.1268-10-kbastian@mail.uni-paderborn.de>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
if cpu_gpr_d[r3] == 0 then we were shifting the lower register to the
right by 32 which is undefined behaviour. In this case the TriCore would
do nothing an just return the higher register cpu_reg_d[r1]. We fixed
that by detecting whether cpu_gpr_d[r3] was zero and cleared the lower
register.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230202120432.1268-8-kbastian@mail.uni-paderborn.de>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
if we used const16 == 0 we would crash qemu with the error:
../tcg/tcg-op.c:196: tcg_gen_shri_i32: Assertion `arg2 >= 0 && arg2 < 32' failed
This whole instruction can be handled by 'tcg_gen_extract2_tl' which
takes care of this special case as well.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <20230202120432.1268-6-kbastian@mail.uni-paderborn.de>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
we were mixing up the "c" and "d" registers. We used "d" as a
destination register und "c" as the source. According to the TriCore ISA
manual 1.6 vol 2 it is the other way round.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/653
Message-Id: <20230202120432.1268-4-kbastian@mail.uni-paderborn.de>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
we were mixing up the "c" and "d" registers. We used "d" as a
destination register und "c" as the source. According to the TriCore ISA
manual 1.6 vol 2 it is the other way round.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/653
Message-Id: <20230202120432.1268-2-kbastian@mail.uni-paderborn.de>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Tracked down with the help of scripts/clean-includes.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230202133830.2152150-21-armbru@redhat.com>
This commit was created with scripts/clean-includes.
All .c should include qemu/osdep.h first. The script performs three
related cleanups:
* Ensure .c files include qemu/osdep.h first.
* Including it in a .h is redundant, since the .c already includes
it. Drop such inclusions.
* Likewise, including headers qemu/osdep.h includes is redundant.
Drop these, too.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20230202133830.2152150-15-armbru@redhat.com>
This commit was created with scripts/clean-includes.
All .c should include qemu/osdep.h first. The script performs three
related cleanups:
* Ensure .c files include qemu/osdep.h first.
* Including it in a .h is redundant, since the .c already includes
it. Drop such inclusions.
* Likewise, including headers qemu/osdep.h includes is redundant.
Drop these, too.
Changes to standalone programs dropped, because these intentionally
don't use qemu/osdep.h:
target/hexagon/gen_dectree_import.c
target/hexagon/gen_semantics.c
target/hexagon/idef-parser/idef-parser.h
target/hexagon/idef-parser/parser-helpers.c
target/hexagon/idef-parser/parser-helpers.h
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20230202133830.2152150-14-armbru@redhat.com>
Character must be returned via ret[0] field (copied to a0 by KVM).
Return value should be set to 0 to indicate successful processing.
Signed-off-by: Vladimir Isaev <vladimir.isaev@syntacore.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230203135155.12449-1-vladimir.isaev@syntacore.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
According to spec, ctzw should work with 32-bit register, not 64.
For example, previous implementation returns 33 for (1<<33) input
when the new one returns 32.
Signed-off-by: Vladimir Isaev <vladimir.isaev@syntacore.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230204082312.43557-1-vladimir.isaev@syntacore.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Fabiano Rosas