Merge tag 'pull-target-arm-20230518' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* Fix vd == vm overlap in sve_ldff1_z
* Add support for MTE with KVM guests

Merge tag 'pull-target-arm-20230518' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* Fix vd == vm overlap in sve_ldff1_z
* Add support for MTE with KVM guests
* Add RAZ/WI handling for DBGDTR[TX|RX]
* Start of conversion of A64 decoder to decodetree
* Saturate L2CTLR_EL1 core count field rather than overflowing
* vexpress: Avoid trivial memory leak of 'flashalias'
* sbsa-ref: switch default cpu core to Neoverse-N1
* sbsa-ref: use Bochs graphics card instead of VGA
* MAINTAINERS: Add Marcin Juszkiewicz to sbsa-ref reviewer list
* docs: Convert u2f.txt to rST

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# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]

* tag 'pull-target-arm-20230518' of https://git.linaro.org/people/pmaydell/qemu-arm: (29 commits)
docs: Convert u2f.txt to rST
hw/arm/vexpress: Avoid trivial memory leak of 'flashalias'
target/arm: Saturate L2CTLR_EL1 core count field rather than overflowing
target/arm: Convert ERET, ERETAA, ERETAB to decodetree
target/arm: Convert BRAA, BRAB, BLRAA, BLRAB to decodetree
target/arm: Convert BRA[AB]Z, BLR[AB]Z, RETA[AB] to decodetree
target/arm: Convert BR, BLR, RET to decodetree
target/arm: Convert conditional branch insns to decodetree
target/arm: Convert TBZ, TBNZ to decodetree
target/arm: Convert CBZ, CBNZ to decodetree
target/arm: Convert unconditional branch immediate to decodetree
target/arm: Convert Extract instructions to decodetree
target/arm: Convert Bitfield to decodetree
target/arm: Convert Move wide (immediate) to decodetree
target/arm: Convert Logical (immediate) to decodetree
target/arm: Replace bitmask64 with MAKE_64BIT_MASK
target/arm: Convert Add/subtract (immediate with tags) to decodetree
target/arm: Convert Add/subtract (immediate) to decodetree
target/arm: Split gen_add_CC and gen_sub_CC
target/arm: Convert PC-rel addressing to decodetree
...

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

show more ...

target/arm: Saturate L2CTLR_EL1 core count field rather than overflowing

The IMPDEF sysreg L2CTLR_EL1 found on the Cortex-A35, A53, A57, A72
and which we (arguably dubiously) also provide in '-cpu m

target/arm: Saturate L2CTLR_EL1 core count field rather than overflowing

The IMPDEF sysreg L2CTLR_EL1 found on the Cortex-A35, A53, A57, A72
and which we (arguably dubiously) also provide in '-cpu max' has a
2 bit field for the number of processors in the cluster. On real
hardware this must be sufficient because it can only be configured
with up to 4 CPUs in the cluster. However on QEMU if the board code
does not explicitly configure the code into clusters with the right
CPU count we default to "give the value assuming that all CPUs in
the system are in a single cluster", which might be too big to fit
in the field.

Instead of just overflowing this 2-bit field, saturate to 3 (meaning
"4 CPUs", so at least we don't overwrite other fields in the register.
It's unlikely that any guest code really cares about the value in
this field; at least, if it does it probably also wants the system
to be more closely matching real hardware, i.e. not to have more
than 4 CPUs.

This issue has been present since the L2CTLR was first added in
commit 377a44ec8f2fac5b back in 2014. It was only noticed because
Coverity complains (CID 1509227) that the shift might overflow 32 bits
and inadvertently sign extend into the top half of the 64 bit value.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230512170223.3801643-2-peter.maydell@linaro.org

show more ...

Merge tag 'pull-target-arm-20230502-2' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* Support building Arm targets with CONFIG_TCG=no (ie KVM only)
* hw/net: n

Merge tag 'pull-target-arm-20230502-2' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
* Support building Arm targets with CONFIG_TCG=no (ie KVM only)
* hw/net: npcm7xx_emc: set MAC in register space
* hw/arm/bcm2835_property: Implement "get command line" message
* Deprecate the '-singlestep' command line option in favour of
'-one-insn-per-tb' and '-accel one-insn-per-tb=on'
* Deprecate 'singlestep' member of QMP StatusInfo struct
* docs/about/deprecated.rst: Add "since 7.1" tag to dtb-kaslr-seed deprecation
* hw/net/msf2-emac: Don't modify descriptor in-place in emac_store_desc()
* raspi, aspeed: Write bootloader code correctly on big-endian hosts
* hw/intc/allwinner-a10-pic: Fix bug on big-endian hosts
* Fix bug in A32 ERET on big-endian hosts that caused guest crash
* hw/sd/allwinner-sdhost: Correctly byteswap descriptor fields
* hw/net/allwinner-sun8i-emac: Correctly byteswap descriptor fields

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# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]

* tag 'pull-target-arm-20230502-2' of https://git.linaro.org/people/pmaydell/qemu-arm: (34 commits)
hw/net/allwinner-sun8i-emac: Correctly byteswap descriptor fields
hw/sd/allwinner-sdhost: Correctly byteswap descriptor fields
target/arm: Add compile time asserts to load/store_cpu_field macros
target/arm: Define and use new load_cpu_field_low32()
hw/intc/allwinner-a10-pic: Don't use set_bit()/clear_bit()
hw/arm/raspi: Use arm_write_bootloader() to write boot code
hw/arm/aspeed: Use arm_write_bootloader() to write the bootloader
hw/arm/boot: Make write_bootloader() public as arm_write_bootloader()
hw/net/msf2-emac: Don't modify descriptor in-place in emac_store_desc()
docs/about/deprecated.rst: Add "since 7.1" tag to dtb-kaslr-seed deprecation
qmp: Deprecate 'singlestep' member of StatusInfo
qapi/run-state.json: Fix missing newline at end of file
hmp: Add 'one-insn-per-tb' command equivalent to 'singlestep'
accel/tcg: Report one-insn-per-tb in 'info jit', not 'info status'
Document that -singlestep command line option is deprecated
bsd-user: Add '-one-insn-per-tb' option equivalent to '-singlestep'
linux-user: Add '-one-insn-per-tb' option equivalent to '-singlestep'
accel/tcg: Use one_insn_per_tb global instead of old singlestep global
softmmu: Don't use 'singlestep' global in QMP and HMP commands
make one-insn-per-tb an accel option
...

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

show more ...

target/arm: Move cortex sysregs into a separate file

The file cpu_tcg.c is about to be moved into the tcg/ directory, so
move the register definitions into a new file.

Also move the function declar

target/arm: Move cortex sysregs into a separate file

The file cpu_tcg.c is about to be moved into the tcg/ directory, so
move the register definitions into a new file.

Also move the function declaration to the more appropriate cpregs.h.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230426180013.14814-2-farosas@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...