Merge tag 'pull-riscv-to-apply-20241002' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.2

* Add a property to set vl to ceil(AVL/2)
* Enable numamem testing for RISC-V
* Conside

Merge tag 'pull-riscv-to-apply-20241002' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.2

* Add a property to set vl to ceil(AVL/2)
* Enable numamem testing for RISC-V
* Consider MISA bit choice in implied rule
* Fix the za64rs priv spec requirements
* Enable Bit Manip for OpenTitan Ibex CPU
* Fix the group bit setting of AIA with KVM
* Stop timer with infinite timecmp
* Add 'fcsr' register to QEMU log as a part of F extension
* Fix riscv64 build on musl libc
* Add preliminary textra trigger CSR functions
* RISC-V bsd-user support
* Respect firmware ELF entry point
* Add Svvptc extension support
* Fix masking of rv32 physical address
* Fix linking problem with semihosting disabled
* Fix IMSIC interrupt state updates

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# 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-20241002' of https://github.com/alistair23/qemu: (35 commits)
bsd-user: Add RISC-V 64-bit Target Configuration and Debug XML Files
bsd-user: Implement set_mcontext and get_ucontext_sigreturn for RISCV
bsd-user: Implement 'get_mcontext' for RISC-V
bsd-user: Implement RISC-V signal trampoline setup functions
bsd-user: Define RISC-V signal handling structures and constants
bsd-user: Add generic RISC-V64 target definitions
bsd-user: Define RISC-V system call structures and constants
bsd-user: Define RISC-V VM parameters and helper functions
bsd-user: Add RISC-V thread setup and initialization support
bsd-user: Implement RISC-V sysarch system call emulation
bsd-user: Add RISC-V signal trampoline setup function
bsd-user: Define RISC-V register structures and register copying
bsd-user: Add RISC-V ELF definitions and hardware capability detection
bsd-user: Implement RISC-V TLS register setup
bsd-user: Implement RISC-V CPU register cloning and reset functions
bsd-user: Add RISC-V CPU execution loop and syscall handling
bsd-user: Implement RISC-V CPU initialization and main loop
hw/intc: riscv-imsic: Fix interrupt state updates.
target/riscv/cpu_helper: Fix linking problem with semihosting disabled
target/riscv32: Fix masking of physical address
...

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

show more ...

target/riscv: Add textra matching condition for the triggers

According to RISC-V Debug specification, the optional textra32 and
textra64 trigger CSRs can be used to configure additional matching
con

target/riscv: Add textra matching condition for the triggers

According to RISC-V Debug specification, the optional textra32 and
textra64 trigger CSRs can be used to configure additional matching
conditions for the triggers. For example, if the textra.MHSELECT field
is set to 4 (mcontext), this trigger will only match or fire if the low
bits of mcontext/hcontext equal textra.MHVALUE field.

This commit adds the aforementioned matching condition as common trigger
matching conditions. Currently, the only legal values of textra.MHSELECT
are 0 (ignore) and 4 (mcontext). When textra.MHSELECT is 0, we pass the
checking. When textra.MHSELECT is 4, we compare textra.MHVALUE with
mcontext CSR. The remaining fields, such as textra.SBYTEMASK,
textra.SVALUE, and textra.SSELECT, are hardwired to zero for now. Thus,
we skip checking them here.

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240826024657.262553-3-alvinga@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

target/riscv: Preliminary textra trigger CSR writting support

This commit allows program to write textra trigger CSR for type 2, 3, 6
triggers. In this preliminary patch, the textra.MHVALUE and the

target/riscv: Preliminary textra trigger CSR writting support

This commit allows program to write textra trigger CSR for type 2, 3, 6
triggers. In this preliminary patch, the textra.MHVALUE and the
textra.MHSELECT fields are allowed to be configured. Other fields, such
as textra.SBYTEMASK, textra.SVALUE, and textra.SSELECT, are hardwired to
zero for now.

For textra.MHSELECT field, the only legal values are 0 (ignore) and 4
(mcontext). Writing 1~3 into textra.MHSELECT will be changed to 0, and
writing 5~7 into textra.MHSELECT will be changed to 4. This behavior is
aligned to RISC-V SPIKE simulator.

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240826024657.262553-2-alvinga@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

Merge tag 'pull-riscv-to-apply-20240627-1' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.1

* Extend virtual irq csrs masks to be 64 bit wide
* Move Guest irqs out of the core l

Merge tag 'pull-riscv-to-apply-20240627-1' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.1

* Extend virtual irq csrs masks to be 64 bit wide
* Move Guest irqs out of the core local irqs range
* zvbb implies zvkb
* virt: add address-cells in create_fdt_one_aplic()
* virt: add aplic nodename helper
* virt: rename aplic nodename to 'interrupt-controller'
* virt: aplic DT: add 'qemu, aplic' to 'compatible'
* virt: aplic DT: rename prop to 'riscv, delegation'
* virt: change imsic nodename to 'interrupt-controller'
* virt: imsics DT: add 'qemu, imsics' to 'compatible'
* virt: imsics DT: add '#msi-cells'
* QEMU support for KVM Guest Debug on RISC-V
* Support RISC-V privilege 1.13 spec
* Add support for RISC-V ACPI tests
* Modularize common match conditions for trigger

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# 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-20240627-1' of https://github.com/alistair23/qemu: (32 commits)
target/riscv: Apply modularized matching conditions for icount trigger
target/riscv: Apply modularized matching conditions for watchpoint
target/riscv: Add functions for common matching conditions of trigger
target/riscv: Remove extension auto-update check statements
target/riscv: Add Zc extension implied rule
target/riscv: Add multi extension implied rules
target/riscv: Add MISA extension implied rules
target/riscv: Introduce extension implied rule helpers
target/riscv: Introduce extension implied rules definition
target/riscv: fix instructions count handling in icount mode
target/riscv: Fix froundnx.h nanbox check
hw/riscv/virt.c: Make block devices default to virtio
target/riscv: Support the version for ss1p13
target/riscv: Reserve exception codes for sw-check and hw-err
target/riscv: Add MEDELEGH, HEDELEGH csrs for RV32
target/riscv: Add 'P1P13' bit in SMSTATEEN0
target/riscv: Define macros and variables for ss1p13
target/riscv: Reuse the conversion function of priv_spec
target/riscv/kvm: define TARGET_KVM_HAVE_GUEST_DEBUG
target/riscv/kvm: handle the exit with debug reason
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/riscv: Apply modularized matching conditions for icount trigger

We have implemented trigger_common_match(), which checks if the enabled
privilege levels of the trigger match CPU's current pri

target/riscv: Apply modularized matching conditions for icount trigger

We have implemented trigger_common_match(), which checks if the enabled
privilege levels of the trigger match CPU's current privilege level. We
can invoke trigger_common_match() to check the privilege levels of the
type 3 triggers.

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240626132247.2761286-4-alvinga@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

target/riscv: Apply modularized matching conditions for watchpoint

We have implemented trigger_common_match(), which checks if the enabled
privilege levels of the trigger match CPU's current privile

target/riscv: Apply modularized matching conditions for watchpoint

We have implemented trigger_common_match(), which checks if the enabled
privilege levels of the trigger match CPU's current privilege level.
Remove the related code in riscv_cpu_debug_check_watchpoint() and invoke
trigger_common_match() to check the privilege levels of the type 2 and
type 6 triggers for the watchpoints.

This commit also changes the behavior of looping the triggers. In
previous implementation, if we have a type 2 trigger and
env->virt_enabled is true, we directly return false to stop the loop.
Now we keep looping all the triggers until we find a matched trigger.

Only load/store bits and loaded/stored address should be further checked
in riscv_cpu_debug_check_watchpoint().

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240626132247.2761286-3-alvinga@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

target/riscv: Add functions for common matching conditions of trigger

According to RISC-V Debug specification version 0.13 [1] (also applied
to version 1.0 [2] but it has not been ratified yet), the

target/riscv: Add functions for common matching conditions of trigger

According to RISC-V Debug specification version 0.13 [1] (also applied
to version 1.0 [2] but it has not been ratified yet), there are several
common matching conditions before firing a trigger, including the
enabled privilege levels of the trigger.

This commit adds trigger_common_match() to prepare the common matching
conditions for the type 2/3/6 triggers. For now, we just implement
trigger_priv_match() to check if the enabled privilege levels of the
trigger match CPU's current privilege level.

Remove the related code in riscv_cpu_debug_check_breakpoint() and invoke
trigger_common_match() to check the privilege levels of the type 2 and
type 6 triggers for the breakpoints.

This commit also changes the behavior of looping the triggers. In
previous implementation, if we have a type 2 trigger and
env->virt_enabled is true, we directly return false to stop the loop.
Now we keep looping all the triggers until we find a matched trigger.

Only the execution bit and the executed PC should be futher checked in
riscv_cpu_debug_check_breakpoint().

[1]: https://github.com/riscv/riscv-debug-spec/releases/tag/task_group_vote
[2]: https://github.com/riscv/riscv-debug-spec/releases/tag/1.0.0-rc1-asciidoc

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240626132247.2761286-2-alvinga@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

Merge tag 'pull-riscv-to-apply-20240603' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.1

* APLICs add child earlier than realize
* Fix exposure of Zkr
* Raise exceptions on wrs

Merge tag 'pull-riscv-to-apply-20240603' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.1

* APLICs add child earlier than realize
* Fix exposure of Zkr
* Raise exceptions on wrs.nto
* Implement SBI debug console (DBCN) calls for KVM
* Support 64-bit addresses for initrd
* Change RISCV_EXCP_SEMIHOST exception number to 63
* Tolerate KVM disable ext errors
* Set tval in breakpoints
* Add support for Zve32x extension
* Add support for Zve64x extension
* Relax vector register check in RISCV gdbstub
* Fix the element agnostic Vector function problem
* Fix Zvkb extension config
* Implement dynamic establishment of custom decoder
* Add th.sxstatus CSR emulation
* Fix Zvfhmin checking for vfwcvt.f.f.v and vfncvt.f.f.w instructions
* Check single width operator for vector fp widen instructions
* Check single width operator for vfncvt.rod.f.f.w
* Remove redudant SEW checking for vector fp narrow/widen instructions
* Prioritize pmp errors in raise_mmu_exception()
* Do not set mtval2 for non guest-page faults
* Remove experimental prefix from "B" extension
* Fixup CBO extension register calculation
* Fix the hart bit setting of AIA
* Fix reg_width in ricsv_gen_dynamic_vector_feature()
* Decode all of the pmpcfg and pmpaddr CSRs

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# 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-20240603' of https://github.com/alistair23/qemu: (27 commits)
disas/riscv: Decode all of the pmpcfg and pmpaddr CSRs
riscv, gdbstub.c: fix reg_width in ricsv_gen_dynamic_vector_feature()
target/riscv/kvm.c: Fix the hart bit setting of AIA
target/riscv: rvzicbo: Fixup CBO extension register calculation
target/riscv: Remove experimental prefix from "B" extension
target/riscv: do not set mtval2 for non guest-page faults
target/riscv: prioritize pmp errors in raise_mmu_exception()
target/riscv: rvv: Remove redudant SEW checking for vector fp narrow/widen instructions
target/riscv: rvv: Check single width operator for vfncvt.rod.f.f.w
target/riscv: rvv: Check single width operator for vector fp widen instructions
target/riscv: rvv: Fix Zvfhmin checking for vfwcvt.f.f.v and vfncvt.f.f.w instructions
riscv: thead: Add th.sxstatus CSR emulation
target/riscv: Implement dynamic establishment of custom decoder
target/riscv/cpu.c: fix Zvkb extension config
target/riscv: Fix the element agnostic function problem
target/riscv: Relax vector register check in RISCV gdbstub
target/riscv: Add support for Zve64x extension
target/riscv: Add support for Zve32x extension
trans_privileged.c.inc: set (m|s)tval on ebreak breakpoint
target/riscv/debug: set tval=pc in breakpoint exceptions
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/riscv/debug: set tval=pc in breakpoint exceptions

We're not setting (s/m)tval when triggering breakpoints of type 2
(mcontrol) and 6 (mcontrol6). According to the debug spec section
5.7.12, "

target/riscv/debug: set tval=pc in breakpoint exceptions

We're not setting (s/m)tval when triggering breakpoints of type 2
(mcontrol) and 6 (mcontrol6). According to the debug spec section
5.7.12, "Match Control Type 6":

"The Privileged Spec says that breakpoint exceptions that occur on
instruction fetches, loads, or stores update the tval CSR with either
zero or the faulting virtual address. The faulting virtual address for
an mcontrol6 trigger with action = 0 is the address being accessed and
which caused that trigger to fire."

A similar text is also found in the Debug spec section 5.7.11 w.r.t.
mcontrol.

Note that what we're doing ATM is not violating the spec, but it's
simple enough to set mtval/stval and it makes life easier for any
software that relies on this info.

Given that we always use action = 0, save the faulting address for the
mcontrol and mcontrol6 trigger breakpoints into env->badaddr, which is
used as as scratch area for traps with address information. 'tval' is
then set during riscv_cpu_do_interrupt().

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-ID: <20240416230437.1869024-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

Merge tag 'pull-riscv-to-apply-20240209' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.0

* Check for 'A' extension on all atomic instructions
* Add support for 'B' extension
*

Merge tag 'pull-riscv-to-apply-20240209' of https://github.com/alistair23/qemu into staging

RISC-V PR for 9.0

* Check for 'A' extension on all atomic instructions
* Add support for 'B' extension
* Internally deprecate riscv_cpu_options
* Implement optional CSR mcontext of debug Sdtrig extension
* Internally add cpu->cfg.vlenb and remove cpu->cfg.vlen
* Support vlenb and vregs[] in KVM
* RISC-V gdbstub and TCG plugin improvements
* Remove vxrm and vxsat from FCSR
* Use RISCVException as return type for all csr ops
* Use g_autofree more and fix a memory leak
* Add support for Zaamo and Zalrsc
* Support new isa extension detection devicetree properties
* SMBIOS support for RISC-V virt machine
* Enable xtheadsync under user mode
* Add rv32i,rv32e and rv64e CPUs

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# gpg: Signature made Fri 09 Feb 2024 10:57:20 GMT
# 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-20240209' of https://github.com/alistair23/qemu: (61 commits)
target/riscv: add rv32i, rv32e and rv64e CPUs
target/riscv/cpu.c: add riscv_bare_cpu_init()
target/riscv: Enable xtheadsync under user mode
qemu-options: enable -smbios option on RISC-V
target/riscv: SMBIOS support for RISC-V virt machine
smbios: function to set default processor family
smbios: add processor-family option
target/riscv: support new isa extension detection devicetree properties
target/riscv: use misa_mxl_max to populate isa string rather than TARGET_LONG_BITS
target/riscv: Expose Zaamo and Zalrsc extensions
target/riscv: Check 'A' and split extensions for atomic instructions
target/riscv: Add Zaamo and Zalrsc extension infrastructure
hw/riscv/virt.c: use g_autofree in create_fdt_*
hw/riscv/virt.c: use g_autofree in virt_machine_init()
hw/riscv/virt.c: use g_autofree in create_fdt_virtio()
hw/riscv/virt.c: use g_autofree in create_fdt_sockets()
hw/riscv/virt.c: use g_autofree in create_fdt_socket_cpus()
hw/riscv/numa.c: use g_autofree in socket_fdt_write_distance_matrix()
hw/riscv/virt-acpi-build.c: fix leak in build_rhct()
target/riscv: Use RISCVException as return type for all csr ops
...

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

show more ...

target/riscv: Implement optional CSR mcontext of debug Sdtrig extension

The debug Sdtrig extension defines an CSR "mcontext". This commit
implements its predicate and read/write operations into CSR

target/riscv: Implement optional CSR mcontext of debug Sdtrig extension

The debug Sdtrig extension defines an CSR "mcontext". This commit
implements its predicate and read/write operations into CSR table.
Its value is reset as 0 when the trigger module is reset.

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20231219123244.290935-1-alvinga@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

target/riscv: Allocate itrigger timers only once

riscv_trigger_init() had been called on reset events that can happen
several times for a CPU and it allocated timers for itrigger. If old
timers were

target/riscv: Allocate itrigger timers only once

riscv_trigger_init() had been called on reset events that can happen
several times for a CPU and it allocated timers for itrigger. If old
timers were present, they were simply overwritten by the new timers,
resulting in a memory leak.

Divide riscv_trigger_init() into two functions, namely
riscv_trigger_realize() and riscv_trigger_reset() and call them in
appropriate timing. The timer allocation will happen only once for a
CPU in riscv_trigger_realize().

Fixes: 5a4ae64cac ("target/riscv: Add itrigger support when icount is enabled")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230818034059.9146-1-akihiko.odaki@daynix.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
(cherry picked from commit a7c272df82af11c568ea83921b04334791dccd5e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

show more ...

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
*

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

# -----BEGIN PGP SIGNATURE-----
#
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# QNnih/v1J+1XqUyyT2InOoAiTotzHiWgKZKaMfAhomt2j/slz+A=
# =aqcx
# -----END PGP SIGNATURE-----
# 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>

show more ...

target/riscv: Allocate itrigger timers only once

riscv_trigger_init() had been called on reset events that can happen
several times for a CPU and it allocated timers for itrigger. If old
timers were

target/riscv: Allocate itrigger timers only once

riscv_trigger_init() had been called on reset events that can happen
several times for a CPU and it allocated timers for itrigger. If old
timers were present, they were simply overwritten by the new timers,
resulting in a memory leak.

Divide riscv_trigger_init() into two functions, namely
riscv_trigger_realize() and riscv_trigger_reset() and call them in
appropriate timing. The timer allocation will happen only once for a
CPU in riscv_trigger_realize().

Fixes: 5a4ae64cac ("target/riscv: Add itrigger support when icount is enabled")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230818034059.9146-1-akihiko.odaki@daynix.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

Merge tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu into staging

trivial patches for 2023-09-08

# -----BEGIN PGP SIGNATURE-----
#
# iQFDBAABCAAtFiEEe3O61ovnosKJMUsicBtPaxppPlkFAmT68tM

Merge tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu into staging

trivial patches for 2023-09-08

# -----BEGIN PGP SIGNATURE-----
#
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# 6cunyUpBqbmb7MHPchrN+JmvtvaSPSazsj2Zdkh+Y4WlfEYj+yVysQ4zQlBlRyHv
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# IFJzEWMOrX/rcMG1CQnUFZOOyDSO+NfILwNnU+eyM49MUekmY54=
# =mmPS
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 08 Sep 2023 06:09:23 EDT
# gpg: using RSA key 7B73BAD68BE7A2C289314B22701B4F6B1A693E59
# gpg: issuer "mjt@tls.msk.ru"
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" [full]
# gpg: aka "Michael Tokarev <mjt@corpit.ru>" [full]
# gpg: aka "Michael Tokarev <mjt@debian.org>" [full]
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5
# Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931 4B22 701B 4F6B 1A69 3E59

* tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu: (22 commits)
qxl: don't assert() if device isn't yet initialized
hw/net/vmxnet3: Fix guest-triggerable assert()
tests/qtest/usb-hcd: Remove the empty "init" tests
target/ppc: use g_free() in test_opcode_table()
hw/ppc: use g_free() in spapr_tce_table_post_load()
trivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value
accel/tcg: Fix typo in translator_io_start() description
tests/qtest/test-hmp: Fix migrate_set_parameter xbzrle-cache-size test
docs tests: Fix use of migrate_set_parameter
qemu-options.hx: Rephrase the descriptions of the -hd* and -cdrom options
hw/display/xlnx_dp: update comments
block: spelling fixes
misc/other: spelling fixes
qga/: spelling fixes
tests/: spelling fixes
scripts/: spelling fixes
include/: spelling fixes
audio: spelling fixes
xen: spelling fix
riscv: spelling fixes
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

riscv: spelling fixes

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Alistair Francis <alistair.francis@wdc.com>

Merge tag 'pull-riscv-to-apply-20230505-1' of https://github.com/alistair23/qemu into staging

First RISC-V PR for 8.1

* CPURISCVState related cleanup and simplification
* Refactor Zicond and reuse

Merge tag 'pull-riscv-to-apply-20230505-1' of https://github.com/alistair23/qemu into staging

First RISC-V PR for 8.1

* CPURISCVState related cleanup and simplification
* Refactor Zicond and reuse in XVentanaCondOps
* Fix invalid riscv,event-to-mhpmcounters entry
* Support subsets of code size reduction extension
* Fix itrigger when icount is used
* Simplification for RVH related check and code style fix
* Add signature dump function for spike to run ACT tests
* Rework MISA writing
* Fix mstatus.MPP related support
* Use check for relationship between Zdinx/Zhinx{min} and Zfinx
* Fix the H extension TVM trap
* A large collection of mstatus sum changes and cleanups
* Zero init APLIC internal state
* Implement query-cpu-definitions
* Restore the predicate() NULL check behavior
* Fix Guest Physical Address Translation
* Make sure an exception is raised if a pte is malformed
* Add Ventana's Veyron V1 CPU

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# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 05 May 2023 01:53:35 AM BST
# 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-20230505-1' of https://github.com/alistair23/qemu: (89 commits)
target/riscv: add Ventana's Veyron V1 CPU
riscv: Make sure an exception is raised if a pte is malformed
target/riscv: Fix Guest Physical Address Translation
target/riscv: Restore the predicate() NULL check behavior
target/riscv: add TYPE_RISCV_DYNAMIC_CPU
target/riscv: add query-cpy-definitions support
target/riscv: add CPU QOM header
hw/intc/riscv_aplic: Zero init APLIC internal state
target/riscv: Reorg sum check in get_physical_address
target/riscv: Reorg access check in get_physical_address
target/riscv: Merge checks for reserved pte flags
target/riscv: Don't modify SUM with is_debug
target/riscv: Suppress pte update with is_debug
target/riscv: Move leaf pte processing out of level loop
target/riscv: Hoist pbmte and hade out of the level loop
target/riscv: Hoist second stage mode change to callers
target/riscv: Check SUM in the correct register
target/riscv: Set MMU_2STAGE_BIT in riscv_cpu_mmu_index
target/riscv: Move hstatus.spvp check to check_access_hlsv
target/riscv: Introduce mmuidx_2stage
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/riscv: Fix lines with over 80 characters

Fix lines with over 80 characters for both code and comments.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqi

target/riscv: Fix lines with over 80 characters

Fix lines with over 80 characters for both code and comments.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230405085813.40643-5-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

target/riscv: Remove riscv_cpu_virt_enabled()

Directly use env->virt_enabled instead.

Suggested-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-

target/riscv: Remove riscv_cpu_virt_enabled()

Directly use env->virt_enabled instead.

Suggested-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230405085813.40643-2-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

Merge tag 'pull-riscv-to-apply-20230207' of https://github.com/alistair23/qemu into staging

Third RISC-V PR for QEMU 8.0

* Update disas for xnor/orn/andn and slli.uw
* Update opentitan IRQs
* Fix r

Merge tag 'pull-riscv-to-apply-20230207' of https://github.com/alistair23/qemu into staging

Third RISC-V PR for QEMU 8.0

* Update disas for xnor/orn/andn and slli.uw
* Update opentitan IRQs
* Fix rom code when Zicsr is disabled
* Update VS timer whenever htimedelta changes
* A collection of fixes for virtulisation
* Set tval for triggered watchpoints
* Cleanups for board and FDT creation
* Add support for the T-Head vendor extensions
* A fix for virtual instr exception
* Fix ctzw behavior
* Fix SBI getchar handler for KVM

# -----BEGIN PGP SIGNATURE-----
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# gpg: Signature made Tue 07 Feb 2023 07:08:52 GMT
# gpg: using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8 CE8F 21E1 0D29 DF97 7054

* tag 'pull-riscv-to-apply-20230207' of https://github.com/alistair23/qemu: (32 commits)
hw/riscv: virt: Simplify virt_{get,set}_aclint()
target/riscv: fix SBI getchar handler for KVM
target/riscv: fix ctzw behavior
target/riscv: fix for virtual instr exception
target/riscv: add a MAINTAINERS entry for XThead* extension support
RISC-V: Adding XTheadFmv ISA extension
RISC-V: Add initial support for T-Head C906
RISC-V: Set minimum priv version for Zfh to 1.11
RISC-V: Adding T-Head FMemIdx extension
RISC-V: Adding T-Head MemIdx extension
RISC-V: Adding T-Head MemPair extension
RISC-V: Adding T-Head multiply-accumulate instructions
RISC-V: Adding XTheadCondMov ISA extension
RISC-V: Adding XTheadBs ISA extension
RISC-V: Adding XTheadBb ISA extension
RISC-V: Adding XTheadBa ISA extension
RISC-V: Adding XTheadSync ISA extension
RISC-V: Adding XTheadCmo ISA extension
hw/riscv: change riscv_compute_fdt_addr() semantics
hw/riscv: split fdt address calculation from fdt load
...

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

show more ...

target/riscv: set tval for triggered watchpoints

According to privileged spec, if [sm]tval is written with a nonzero
value when a breakpoint exception occurs, then [sm]tval will contain
the faulting

target/riscv: set tval for triggered watchpoints

According to privileged spec, if [sm]tval is written with a nonzero
value when a breakpoint exception occurs, then [sm]tval will contain
the faulting virtual address. Set tval to hit address when breakpoint
exception is triggered by hardware watchpoint.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich@syntacore.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230131170955.752743-1-geomatsi@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

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Merge tag 'pull-riscv-to-apply-20230106' of https://github.com/alistair23/qemu into staging

First RISC-V PR for QEMU 8.0

* Fix PMP propagation for tlb
* Collection of bug fixes
* Bump the OpenTitan

Merge tag 'pull-riscv-to-apply-20230106' of https://github.com/alistair23/qemu into staging

First RISC-V PR for QEMU 8.0

* Fix PMP propagation for tlb
* Collection of bug fixes
* Bump the OpenTitan supported version
* Add smstateen support
* Support native debug icount trigger
* Remove the redundant ipi-id property in the virt machine
* Support cache-related PMU events in virtual mode
* Add some missing PolarFire SoC io regions
* Fix mret exception cause when no pmp rule is configured
* Fix bug where disabling compressed instructions would crash QEMU
* Add Zawrs ISA extension support
* A range of code refactoring and cleanups

# gpg: Signature made Fri 06 Jan 2023 00:47:23 GMT
# gpg: using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8 CE8F 21E1 0D29 DF97 7054

* tag 'pull-riscv-to-apply-20230106' of https://github.com/alistair23/qemu: (43 commits)
hw/intc: sifive_plic: Fix the pending register range check
hw/riscv: opentitan: Drop "hartid-base" and "priority-base" initialization
hw/intc: sifive_plic: Change "priority-base" to start from interrupt source 0
hw/riscv: virt: Fix the value of "riscv, ndev" in the dtb
hw/riscv: sifive_u: Avoid using magic number for "riscv, ndev"
hw/riscv: sifive_e: Fix the number of interrupt sources of PLIC
hw/riscv: microchip_pfsoc: Fix the number of interrupt sources of PLIC
hw/intc: sifive_plic: Update "num-sources" property default value
hw/intc: sifive_plic: Use error_setg() to propagate the error up via errp in sifive_plic_realize()
hw/intc: sifive_plic: Improve robustness of the PLIC config parser
hw/intc: sifive_plic: Drop PLICMode_H
hw/riscv: spike: Remove misleading comments
hw/riscv: Sort machines Kconfig options in alphabetical order
hw/riscv: Fix opentitan dependency to SIFIVE_PLIC
hw/intc: Select MSI_NONBROKEN in RISC-V AIA interrupt controllers
hw/riscv: Select MSI_NONBROKEN in SIFIVE_PLIC
RISC-V: Add Zawrs ISA extension support
target/riscv: Clear mstatus.MPRV when leaving M-mode for priv spec 1.12+
target/riscv: Simplify helper_sret() a little bit
target/riscv: Set pc_succ_insn for !rvc illegal insn
...

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

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target/riscv: Add itrigger_enabled field to CPURISCVState

Avoid calling riscv_itrigger_enabled() when calculate the tbflags.
As the itrigger enable status can only be changed when write
tdata1, migr

target/riscv: Add itrigger_enabled field to CPURISCVState

Avoid calling riscv_itrigger_enabled() when calculate the tbflags.
As the itrigger enable status can only be changed when write
tdata1, migration load or itrigger fire, update env->itrigger_enabled
at these places.

Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221013062946.7530-5-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

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target/riscv: Enable native debug itrigger

When QEMU is not in icount mode, execute instruction one by one. The
tdata1 can be read directly.

When QEMU is in icount mode, use a timer to simulate the

target/riscv: Enable native debug itrigger

When QEMU is not in icount mode, execute instruction one by one. The
tdata1 can be read directly.

When QEMU is in icount mode, use a timer to simulate the itrigger. The
tdata1 may be not right because of lazy update of count in tdata1. Thus,
We should pack the adjusted count into tdata1 before read it back.

Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221013062946.7530-4-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

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target/riscv: Add itrigger support when icount is enabled

The max count in itrigger can be 0x3FFF, which will cause a no trivial
translation and execution overload.

When icount is enabled, QEMU pro

target/riscv: Add itrigger support when icount is enabled

The max count in itrigger can be 0x3FFF, which will cause a no trivial
translation and execution overload.

When icount is enabled, QEMU provides API that can fetch guest
instruction number. Thus, we can set an timer for itrigger with
the count as deadline.

Only when timer expires or priviledge mode changes, do lazy update
to count.

Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221013062946.7530-3-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

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