Commit Graph

110140 Commits

Author SHA1 Message Date
Jason Wang
2220e8189f virtio-net: correctly copy vnet header when flushing TX
When HASH_REPORT is negotiated, the guest_hdr_len might be larger than
the size of the mergeable rx buffer header. Using
virtio_net_hdr_mrg_rxbuf during the header swap might lead a stack
overflow in this case. Fixing this by using virtio_net_hdr_v1_hash
instead.

Reported-by: Xiao Lei <leixiao.nop@zju.edu.cn>
Cc: Yuri Benditovich <yuri.benditovich@daynix.com>
Cc: qemu-stable@nongnu.org
Cc: Mauro Matteo Cascella <mcascell@redhat.com>
Fixes: CVE-2023-6693
Fixes: e22f0603fb ("virtio-net: reference implementation of hash report")
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-01-25 14:58:00 +08:00
Peter Maydell
4a4efae44f Coverity fix, cross toolchain update, switch to decodetree
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Merge tag 'pull-hex-20240121' of https://github.com/quic/qemu into staging

Coverity fix, cross toolchain update, switch to decodetree

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# gpg: Signature made Mon 22 Jan 2024 06:03:40 GMT
# gpg:                using RSA key 3D66AAE474594824C88CE0F81A54AFB8E5646C32
# gpg: Good signature from "Brian Cain <bcain@kernel.org>" [full]
# gpg:                 aka "Brian Cain (QuIC) <bcain@quicinc.com>" [full]
# gpg:                 aka "Brian Cain (CAF) <bcain@codeaurora.org>" [full]
# gpg:                 aka "bcain" [full]
# Primary key fingerprint: 6350 20F9 67A7 7164 79EF  49E0 175C 464E 541B 6D47
#      Subkey fingerprint: 3D66 AAE4 7459 4824 C88C  E0F8 1A54 AFB8 E564 6C32

* tag 'pull-hex-20240121' of https://github.com/quic/qemu:
  target/hexagon: reduce scope of def_regnum, remove dead assignment
  Hexagon (target/hexagon) Remove old dectree.py
  Hexagon (target/hexagon) Use QEMU decodetree (16-bit instructions)
  Hexagon (target/hexagon) Use QEMU decodetree (32-bit instructions)
  Hexagon (target/hexagon) Remove dead functions from hex_common.py
  Hexagon (target/hexagon) Remove unused WRITES_PRED_REG attribute
  Hexagon (target/hexagon) Make generators object oriented - gen_analyze_funcs
  Hexagon (target/hexagon) Make generators object oriented - gen_op_regs
  Hexagon (target/hexagon) Make generators object oriented - gen_idef_parser_funcs
  Hexagon (target/hexagon) Make generators object oriented - gen_helper_funcs
  Hexagon (target/hexagon) Make generators object oriented - gen_helper_protos
  Hexagon (target/hexagon) Make generators object oriented - gen_tcg_funcs
  Hexagon (target/hexagon) Clean up handling of modifier registers
  Hexagon (target/hexagon) Fix shadow variable when idef-parser is off
  tests/docker: Hexagon toolchain update

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-01-23 13:40:45 +00:00
Brian Cain
bbe4209c8b target/hexagon: reduce scope of def_regnum, remove dead assignment
This is intended to address a coverity finding: CID 1527408.

Signed-off-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <20240114234453.4114587-1-bcain@quicinc.com>
2024-01-21 22:02:48 -08:00
Taylor Simpson
cbb9d7157d Hexagon (target/hexagon) Remove old dectree.py
Now that we are using QEMU decodetree.py, remove the old decoder

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240115221443.365287-4-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:44 -08:00
Taylor Simpson
f6c01009b5 Hexagon (target/hexagon) Use QEMU decodetree (16-bit instructions)
Section 10.3 of the Hexagon V73 Programmer's Reference Manual

A duplex is encoded as a 32-bit instruction with bits [15:14] set to 00.
The sub-instructions that comprise a duplex are encoded as 13-bit fields
in the duplex.

Create a decoder for each subinstruction class (a, l1, l2, s1, s2).

Extend gen_trans_funcs.py to handle all instructions rather than
filter by instruction class.

There is a g_assert_not_reached() in decode_insns() in decode.c to
verify we never try to use the old decoder on 16-bit instructions.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240115221443.365287-3-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:40 -08:00
Taylor Simpson
1547a2d339 Hexagon (target/hexagon) Use QEMU decodetree (32-bit instructions)
The Decodetree Specification can be found here
https://www.qemu.org/docs/master/devel/decodetree.html

Covers all 32-bit instructions, including HVX

We generate separate decoders for each instruction class.  The reason
will be more apparent in the next patch in this series.

We add 2 new scripts
    gen_decodetree.py        Generate the input to decodetree.py
    gen_trans_funcs.py       Generate the trans_* functions used by the
                             output of decodetree.py

Since the functions generated by decodetree.py take DisasContext * as an
argument, we add the argument to a couple of functions that didn't need
it previously.  We also set the insn field in DisasContext during decode
because it is used by the trans_* functions.

There is a g_assert_not_reached() in decode_insns() in decode.c to
verify we never try to use the old decoder on 32-bit instructions

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240115221443.365287-2-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:33 -08:00
Taylor Simpson
7ee328804c Hexagon (target/hexagon) Remove dead functions from hex_common.py
These functions are no longer used after making the generators
object oriented.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-10-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:30 -08:00
Taylor Simpson
800abf87b0 Hexagon (target/hexagon) Remove unused WRITES_PRED_REG attribute
This is the only remaining use of the is_written function.  We will
remove it in the subsequent commit.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-9-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:26 -08:00
Taylor Simpson
66fab981c0 Hexagon (target/hexagon) Make generators object oriented - gen_analyze_funcs
This patch conflicts with
https://lists.gnu.org/archive/html/qemu-devel/2023-11/msg00729.html
If that series goes in first, we'll rework this patch and vice versa.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-8-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:21 -08:00
Taylor Simpson
c90e3103a3 Hexagon (target/hexagon) Make generators object oriented - gen_op_regs
Reviewed-by: Brian Cain <bcain@quicinc.com>
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Message-Id: <20231210220712.491494-7-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:18 -08:00
Taylor Simpson
1f03e9a94e Hexagon (target/hexagon) Make generators object oriented - gen_idef_parser_funcs
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-6-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:13 -08:00
Taylor Simpson
a3295f5436 Hexagon (target/hexagon) Make generators object oriented - gen_helper_funcs
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-5-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:10 -08:00
Taylor Simpson
c568919f98 Hexagon (target/hexagon) Make generators object oriented - gen_helper_protos
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-4-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:05 -08:00
Taylor Simpson
b44780740d Hexagon (target/hexagon) Make generators object oriented - gen_tcg_funcs
The generators are generally a bunch of Python if-then-else
statements based on the regtype and regid.  Encapsulate regtype/regid
into a class hierarchy.  Clients lookup the register and invoke
methods.

This has several advantages for making the code easier to read,
understand, and maintain
- The class name makes it more clear what the operand does
- All the methods for a given type of operand are together
- Don't need hex_common.bad_register
  If a regtype/regid is missing, the lookup in hex_common.get_register
  will fail
- We can remove the functions in hex_common that use regtype/regid
  (e.g., is_read)

This patch creates the class hierarchy in hex_common and converts
gen_tcg_funcs.py.  The other scripts will be converted in subsequent
patches in this series.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-3-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:01:59 -08:00
Taylor Simpson
421b53d589 Hexagon (target/hexagon) Clean up handling of modifier registers
Currently, the register number (MuN) for modifier registers is the
modifier register number rather than the index into hex_gpr.  This
patch changes MuN to the hex_gpr index, which is consistent with
the handling of control registers.

Note that HELPER(fcircadd) needs the CS register corresponding to the
modifier register specified in the instruction.  We create a TCGv
variable "CS" to hold the value to pass to the helper.

Reviewed-by: Brian Cain <bcain@quicinc.com>
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Message-Id: <20231210220712.491494-2-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:01:42 -08:00
Taylor Simpson
ccdae09a80 Hexagon (target/hexagon) Fix shadow variable when idef-parser is off
Adding -Werror=shadow=compatible-local causes Hexagon not to build
when idef-parser is off.  The "label" variable in CHECK_NOSHUF_PRED
shadows a variable in the surrounding code.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20231130183955.54314-1-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:01:24 -08:00
Brian Cain
17ed7cec55 tests/docker: Hexagon toolchain update
This update includes support for privileged instructions.

Signed-off-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Tested-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <20240114232354.4109231-1-bcain@quicinc.com>
2024-01-21 18:24:05 -08:00
Peter Maydell
09be347171 - Fix s390x ISM reset
- Remove deprecated CLI options -no-hpet, -no-acpi, -async-teardown,
   -chroot and -singlestep
 - Fix installation of the netbsd VM
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Merge tag 'pull-request-2024-01-19' of https://gitlab.com/thuth/qemu into staging

- Fix s390x ISM reset
- Remove deprecated CLI options -no-hpet, -no-acpi, -async-teardown,
  -chroot and -singlestep
- Fix installation of the netbsd VM

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# gpg: Signature made Fri 19 Jan 2024 15:21:49 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2024-01-19' of https://gitlab.com/thuth/qemu:
  tests/vm/netbsd: Remove missing py311-expat package
  cli: Remove deprecated '-singlestep' command line option
  hmp: Remove deprecated 'singlestep' command
  qapi: Remove deprecated 'singlestep' member of StatusInfo
  qemu-options: Remove the deprecated -chroot option
  qemu-options: Remove the deprecated -async-teardown option
  qemu-options: Remove the deprecated -no-acpi option
  qemu-options: Remove the deprecated -no-hpet option
  s390x/pci: drive ISM reset from subsystem reset
  s390x/pci: refresh fh before disabling aif
  s390x/pci: avoid double enable/disable of aif

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-01-20 17:22:16 +00:00
Peter Maydell
3f2a357b95 HW core patch queue
. Deprecate unmaintained SH-4 models (Samuel)
 . HPET: Convert DPRINTF calls to trace events (Daniel)
 . Implement buffered block writes in Intel PFlash (Gerd)
 . Ignore ELF loadable segments with zero size (Bin)
 . ESP/NCR53C9x: PCI DMA fixes (Mark)
 . PIIX: Simplify Xen PCI IRQ routing (Bernhard)
 . Restrict CPU 'start-powered-off' property to sysemu (Phil)
 
 . target/alpha: Only build sys_helper.c on system emulation (Phil)
 . target/xtensa: Use generic instruction breakpoint API & add test (Max)
 . Restrict icount to system emulation (Phil)
 . Do not set CPUState TCG-specific flags in non-TCG accels (Phil)
 . Cleanup TCG tb_invalidate API (Phil)
 . Correct LoongArch/KVM include path (Bibo)
 . Do not ignore throttle errors in crypto backends (Phil)
 
 . MAINTAINERS updates (Raphael, Zhao)
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Merge tag 'hw-cpus-20240119' of https://github.com/philmd/qemu into staging

HW core patch queue

. Deprecate unmaintained SH-4 models (Samuel)
. HPET: Convert DPRINTF calls to trace events (Daniel)
. Implement buffered block writes in Intel PFlash (Gerd)
. Ignore ELF loadable segments with zero size (Bin)
. ESP/NCR53C9x: PCI DMA fixes (Mark)
. PIIX: Simplify Xen PCI IRQ routing (Bernhard)
. Restrict CPU 'start-powered-off' property to sysemu (Phil)

. target/alpha: Only build sys_helper.c on system emulation (Phil)
. target/xtensa: Use generic instruction breakpoint API & add test (Max)
. Restrict icount to system emulation (Phil)
. Do not set CPUState TCG-specific flags in non-TCG accels (Phil)
. Cleanup TCG tb_invalidate API (Phil)
. Correct LoongArch/KVM include path (Bibo)
. Do not ignore throttle errors in crypto backends (Phil)

. MAINTAINERS updates (Raphael, Zhao)

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* tag 'hw-cpus-20240119' of https://github.com/philmd/qemu: (36 commits)
  configure: Add linux header compile support for LoongArch
  MAINTAINERS: Update hw/core/cpu.c entry
  MAINTAINERS: Update Raphael Norwitz email
  hw/elf_ops: Ignore loadable segments with zero size
  hw/scsi/esp-pci: set DMA_STAT_BCMBLT when BLAST command issued
  hw/scsi/esp-pci: synchronise setting of DMA_STAT_DONE with ESP completion interrupt
  hw/scsi/esp-pci: generate PCI interrupt from separate ESP and PCI sources
  hw/scsi/esp-pci: use correct address register for PCI DMA transfers
  target/riscv: Rename tcg_cpu_FOO() to include 'riscv'
  target/i386: Rename tcg_cpu_FOO() to include 'x86'
  hw/s390x: Rename cpu_class_init() to include 'sclp'
  hw/core/cpu: Rename cpu_class_init() to include 'common'
  accel: Rename accel_init_ops_interfaces() to include 'system'
  cpus: Restrict 'start-powered-off' property to system emulation
  system/watchpoint: Move TCG specific code to accel/tcg/
  system/replay: Restrict icount to system emulation
  hw/pflash: implement update buffer for block writes
  hw/pflash: use ldn_{be,le}_p and stn_{be,le}_p
  hw/pflash: refactor pflash_data_write()
  hw/i386/pc_piix: Make piix_intx_routing_notifier_xen() more device independent
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-01-19 11:39:38 +00:00
Peter Maydell
e566fb8593 * vga: implement odd/even and byte/word/doubleword modes more accurately
* vga: implement horizontal pel panning
 * KVM: add class property to configure KVM device node to use
 * fix various bugs in x86 TCG PC-relative translation
 * properly align huge pages on LoongArch
 * cleanup patches
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* vga: implement odd/even and byte/word/doubleword modes more accurately
* vga: implement horizontal pel panning
* KVM: add class property to configure KVM device node to use
* fix various bugs in x86 TCG PC-relative translation
* properly align huge pages on LoongArch
* cleanup patches

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# gpg: Signature made Thu 18 Jan 2024 09:44:41 GMT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  tests/tcg: Don't #include <inttypes.h> in aarch64/system/vtimer.c
  qemu/osdep: Add huge page aligned support on LoongArch platform
  remove unnecessary casts from uintptr_t
  target/i386: pcrel: store low bits of physical address in data[0]
  target/i386: fix incorrect EIP in PC-relative translation blocks
  target/i386: Do not re-compute new pc with CF_PCREL
  io_uring: move LuringState typedef to block/aio.h
  Add class property to configure KVM device node to use
  vga: sort-of implement word and double-word access modes
  vga: use latches in odd/even mode too
  vga: reindent memory access code
  vga: optimize horizontal pel panning in 256-color modes
  vga: implement horizontal pel panning in graphics modes
  vga: mask addresses in non-VESA modes to 256k
  vga: introduce VGADisplayParams
  vga: use common endian swap macros

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-01-19 11:39:27 +00:00
Bibo Mao
7ec5d7d912 configure: Add linux header compile support for LoongArch
When compiling qemu with system KVM mode for LoongArch, header files
in directory linux-headers/asm-loongarch should be used firstly.
Otherwise it fails to find kvm.h on system with old glibc, since
latest kernel header files are not installed.

This patch adds linux_arch definition for LoongArch system so that
header files in directory linux-headers/asm-loongarch can be included.

Fixes: 714b03c125 ("target/loongarch: Add loongarch kvm into meson build")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240116013952.264474-1-maobibo@loongson.cn>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Zhao Liu
85178698f6 MAINTAINERS: Update hw/core/cpu.c entry
The hw/core/cpu.c was split as hw/core/cpu-common.c and
hw/core/cpu-sysemu.c in the commit df4fd7d5c8 ("cpu: Split as
cpu-common / cpu-sysemu").

Update the related entry.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240115094852.3597165-2-zhao1.liu@linux.intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Raphael Norwitz
1c50d026d5 MAINTAINERS: Update Raphael Norwitz email
I will be leaving Nutanix so updating my email in MAINTAINERS to my
personal email for now.

Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240111192846.111699-1-raphael.norwitz@nutanix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Bin Meng
62570f1434 hw/elf_ops: Ignore loadable segments with zero size
Some ELF files really do have segments of zero size, e.g.:

Program Headers:
  Type           Offset             VirtAddr           PhysAddr
                 FileSiz            MemSiz              Flags  Align
  RISCV_ATTRIBUT 0x00000000000025b8 0x0000000000000000 0x0000000000000000
                 0x000000000000003e 0x0000000000000000  R      0x1
  LOAD           0x0000000000001000 0x0000000080200000 0x0000000080200000
                 0x00000000000001d1 0x00000000000001d1  R E    0x1000
  LOAD           0x00000000000011d1 0x00000000802001d1 0x00000000802001d1
                 0x0000000000000e37 0x0000000000000e37  RW     0x1000
  LOAD           0x0000000000000120 0x0000000000000000 0x0000000000000000
                 0x0000000000000000 0x0000000000000000         0x1000

The current logic does not check for this condition, resulting in
the incorrect assignment of 'lowaddr' as zero.

There is already a piece of codes inside the segment traversal loop
that checks for zero-sized loadable segments for not creating empty
ROM blobs. Let's move this check to the beginning of the loop to
cover both scenarios.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240116155049.390301-1-bmeng@tinylab.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Mark Cave-Ayland
c2d7de557d hw/scsi/esp-pci: set DMA_STAT_BCMBLT when BLAST command issued
Even though the BLAST command isn't fully implemented in QEMU, the DMA_STAT_BCMBLT
bit should be set after the command has been issued to indicate that the command
has completed.

This fixes an issue with the DC390 DOS driver which issues the BLAST command as
part of its normal error recovery routine at startup, and otherwise sits in a
tight loop waiting for DMA_STAT_BCMBLT to be set before continuing.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-ID: <20240112131529.515642-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Mark Cave-Ayland
1e8e6644e0 hw/scsi/esp-pci: synchronise setting of DMA_STAT_DONE with ESP completion interrupt
The setting of DMA_STAT_DONE at the end of a DMA transfer can be configured to
generate an interrupt, however the Linux driver manually checks for DMA_STAT_DONE
being set and if it is, considers that a DMA transfer has completed.

If DMA_STAT_DONE is set but the ESP device isn't indicating an interrupt then
the Linux driver considers this to be a spurious interrupt. However this can
occur in QEMU as there is a delay between the end of DMA transfer where
DMA_STAT_DONE is set, and the ESP device raising its completion interrupt.

This appears to be an incorrect assumption in the Linux driver as the ESP and
PCI DMA interrupt sources are separate (and may not be raised exactly
together), however we can work around this by synchronising the setting of
DMA_STAT_DONE at the end of a DMA transfer with the ESP completion interrupt.

In conjunction with the previous commit Linux is now able to correctly boot
from an am53c974 PCI SCSI device on the hppa C3700 machine without emitting
"iget: checksum invalid" and "Spurious irq, sreg=10" errors.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-ID: <20240112131529.515642-4-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Mark Cave-Ayland
6b41417d93 hw/scsi/esp-pci: generate PCI interrupt from separate ESP and PCI sources
The am53c974/dc390 PCI interrupt has two separate sources: the first is from the
internal ESP device, and the second is from the PCI DMA transfer logic.

Update the ESP interrupt handler so that it sets DMA_STAT_SCSIINT rather than
driving the PCI IRQ directly, and introduce a new esp_pci_update_irq() function
to generate the correct PCI IRQ level. In particular this fixes spurious interrupts
being generated by setting DMA_STAT_DONE at the end of a transfer if DMA_CMD_INTE_D
isn't set in the DMA_CMD register.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-ID: <20240112131529.515642-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Mark Cave-Ayland
84a6835e00 hw/scsi/esp-pci: use correct address register for PCI DMA transfers
The current code in esp_pci_dma_memory_rw() sets the DMA address to the value
of the DMA_SPA (Starting Physical Address) register which is incorrect: this
means that for each callback from the SCSI layer the DMA address is set back
to the starting address.

In the case where only a single SCSI callback occurs (currently for transfer
lengths < 128kB) this works fine, however for larger transfers the DMA address
wraps back to the initial starting address, corrupting the buffer holding the
data transferred to the guest.

Fix esp_pci_dma_memory_rw() to use the DMA_WAC (Working Address Counter) for
the DMA address which is correctly incremented across multiple SCSI layer
transfers.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-ID: <20240112131529.515642-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
7ebbd9d0b6 target/riscv: Rename tcg_cpu_FOO() to include 'riscv'
The tcg_cpu_FOO() names are riscv specific, so rename
them as riscv_tcg_cpu_FOO() (as other names in this file)
to ease navigating the code.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240111120221.35072-6-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
e129593f6f target/i386: Rename tcg_cpu_FOO() to include 'x86'
The tcg_cpu_FOO() names are x86 specific, so rename
them as x86_tcg_cpu_FOO() (as other names in this file)
to ease navigating the code.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20240111120221.35072-5-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
83f1ab12b1 hw/s390x: Rename cpu_class_init() to include 'sclp'
cpu_class_init() is specific to s390x SCLP, so rename
it as sclp_cpu_class_init() (as other names in this file)
to ease navigating the code.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Message-ID: <20240111120221.35072-4-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
3c756f489a hw/core/cpu: Rename cpu_class_init() to include 'common'
cpu_class_init() is common, so rename it as cpu_common_class_init()
to ease navigating the code.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240111120221.35072-3-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
463b00682d accel: Rename accel_init_ops_interfaces() to include 'system'
accel_init_ops_interfaces() is system specific, so
rename it as accel_system_init_ops_interfaces() to
ease navigating the code.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240111120221.35072-2-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
0f9237f4e2 cpus: Restrict 'start-powered-off' property to system emulation
Since the CPUState::start-powered-off property is irrelevant
to user emulation, restrict it to system emulation.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240111161817.43150-1-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
1c3d42c4c9 system/watchpoint: Move TCG specific code to accel/tcg/
Keep system/watchpoint.c accelerator-agnostic by moving
TCG specific code to accel/tcg/watchpoint.c. Update meson.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240111162032.43378-1-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
16ad9788b5 system/replay: Restrict icount to system emulation
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231208113529.74067-7-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Gerd Hoffmann
284a7ee2e2 hw/pflash: implement update buffer for block writes
Add an update buffer where all block updates are staged.
Flush or discard updates properly, so we should never see
half-completed block writes in pflash storage.

Drop a bunch of FIXME comments ;)

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240108160900.104835-4-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Gerd Hoffmann
5dd58358a5 hw/pflash: use ldn_{be,le}_p and stn_{be,le}_p
Use the helper functions we have to read/write multi-byte values
in correct byte order.

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240108160900.104835-3-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Gerd Hoffmann
3b14a555fd hw/pflash: refactor pflash_data_write()
Move the offset calculation, do it once at the start of the function and
let the 'p' variable point directly to the memory location which should
be updated.  This makes it simpler to update other buffers than
pfl->storage in an upcoming patch.  No functional change.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240108160900.104835-2-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Bernhard Beschow
ebd92d6de3 hw/i386/pc_piix: Make piix_intx_routing_notifier_xen() more device independent
This is a follow-up on commit 89965db43c "hw/isa/piix3: Avoid Xen-specific
variant of piix3_write_config()" which introduced
piix_intx_routing_notifier_xen(). This function is implemented in board code but
accesses the PCI configuration space of the PIIX ISA function to determine the
PCI interrupt routes. Avoid this by reusing pci_device_route_intx_to_irq() which
makes piix_intx_routing_notifier_xen() more device-agnostic.

One remaining improvement would be making piix_intx_routing_notifier_xen()
agnostic towards the number of PCI interrupt routes and move it to xen-hvm.
This might be useful for possible Q35 Xen efforts but remains a future exercise
for now.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240107231623.5282-1-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Samuel Tardieu
c8cdec74e6 hw/block: Deprecate the TC58128 block device
The 16MiB flash device is only used by the deprecated shix machine.
Its code it old and unmaintained, and has never been adapted to the
QOM architecture. It still contains debug statements and uses global
variables. It is time to deprecate it.

Signed-off-by: Samuel Tardieu <sam@rfc1149.net>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240109083053.2581588-3-sam@rfc1149.net>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Samuel Tardieu
322b038c94 target/sh4: Deprecate the shix machine
The shix machine has been designed and used at Télécom Paris from 2003
to 2010. It had been added to QEMU in 2005 and has not been maintained
since. Since nobody is using the physical board anymore nor interested
in maintaining the QEMU port, it is time to deprecate it.

Signed-off-by: Samuel Tardieu <sam@rfc1149.net>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240109083053.2581588-2-sam@rfc1149.net>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
72c603f82f util/async: Only call icount_notify_exit() if icount is enabled
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231208113529.74067-6-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
2412813286 target/arm: Ensure icount is enabled when emulating INST_RETIRED
pmu_init() register its event checking the pm_event::supported()
handler. For INST_RETIRED, the event is only registered and the
bit enabled in the PMU Common Event Identification register when
icount is enabled as ICOUNT_PRECISE.

PMU events are TCG-only, hardware accelerators handle them
directly. Unfortunately we register the events in non-TCG builds,
leading to linking error such:

  ld: Undefined symbols:
    _icount_to_ns, referenced from:
      _instructions_ns_per in target_arm_helper.c.o
  clang: error: linker command failed with exit code 1 (use -v to see invocation)

As a kludge, give a hint to the compiler by asserting the
pm_event::get_count() and pm_event::ns_per_count() handler will
only be called under this icount mode.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231208113529.74067-5-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
8e98c27daa system/cpu-timers: Introduce ICountMode enumerator
Rather than having to lookup for what the 0, 1, 2, ...
icount values are, use a enum definition.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20231208113529.74067-4-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
f07f246734 system/cpu-timers: Have icount_configure() return a boolean
Following the example documented since commit e3fe3988d7 ("error:
Document Error API usage rules"), have icount_configure()
return a boolean indicating whether an error is set or not.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231208113529.74067-2-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
6adcba7c0a target/alpha: Only build sys_helper.c on system emulation
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231207105426.49339-3-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
0180444806 target/alpha: Extract clk_helper.c from sys_helper.c
Except helper_load_pcc(), all helpers from sys_helper.c
are system-emulation specific. In preparation of restricting
sys_helper.c to system emulation, extract helper_load_pcc()
to clk_helper.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231207105426.49339-2-philmd@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
fe5c4adca9 accel/tcg: Remove tb_invalidate_phys_page() from system emulation
Since previous commit, tb_invalidate_phys_page() is not used
anymore in system emulation. Make it static for user emulation
and remove its public declaration in "exec/translate-all.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20231130205600.35727-1-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-01-19 12:28:59 +01:00
Philippe Mathieu-Daudé
c076f37a77 accel/tcg: Remove unused tb_invalidate_phys_addr()
Commit e3f7c801f1 introduced the TCGCPUOps::debug_check_breakpoint()
handler, and commit 10c37828b2 "moved breakpoint recognition outside
of translation", so "we no longer need to flush any TBs when changing
BPs".

The last target using tb_invalidate_phys_addr() was converted to the
debug_check_breakpoint(), so this function is now unused. Remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231130203241.31099-1-philmd@linaro.org>
2024-01-19 12:28:59 +01:00