hw/intc/aspeed: Introduce dynamic allocation for regs array

Currently, the size of the "regs" array is 0x2000, which is too large. To save
code size and avoid mapping large unused gaps, will update

hw/intc/aspeed: Introduce dynamic allocation for regs array

Currently, the size of the "regs" array is 0x2000, which is too large. To save
code size and avoid mapping large unused gaps, will update it to only map the
useful set of registers. This update will support multiple sub-regions with
different sizes.

To address the redundant size issue, replace the static "regs" array with a
dynamically allocated "regs" memory.

Introduce a new "aspeed_intc_unrealize" function to free the allocated "regs"
memory.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250307035945.3698802-4-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

show more ...

hw/intc/aspeed: Rename status_addr and addr to status_reg and reg for clarity

Rename the variables "status_addr" to "status_reg" and "addr" to "reg" because
they are used as register index. This cha

hw/intc/aspeed: Rename status_addr and addr to status_reg and reg for clarity

Rename the variables "status_addr" to "status_reg" and "addr" to "reg" because
they are used as register index. This change makes the code more appropriate
and improves readability.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250307035945.3698802-3-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

show more ...

hw/intc/aspeed: Support setting different memory size

According to the AST2700 datasheet, the INTC(CPU DIE) controller has 16KB
(0x4000) of register space, and the INTCIO (I/O DIE) controller has 1K

hw/intc/aspeed: Support setting different memory size

According to the AST2700 datasheet, the INTC(CPU DIE) controller has 16KB
(0x4000) of register space, and the INTCIO (I/O DIE) controller has 1KB (0x400)
of register space.

Introduced a new class attribute "mem_size" to set different memory sizes for
the INTC models in AST2700.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250307035945.3698802-2-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

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exec: Declare tlb_flush*() in 'exec/cputlb.h'

Move CPU TLB related methods to "exec/cputlb.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.hend

exec: Declare tlb_flush*() in 'exec/cputlb.h'

Move CPU TLB related methods to "exec/cputlb.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20241114011310.3615-19-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Merge tag 'pull-loongarch-20250305' of https://gitlab.com/bibo-mao/qemu into staging

loongarch queue

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Merge tag 'pull-loongarch-20250305' of https://gitlab.com/bibo-mao/qemu into staging

loongarch queue

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* tag 'pull-loongarch-20250305' of https://gitlab.com/bibo-mao/qemu:
target/loongarch: Adjust the cpu reset action to a proper position
hw/loongarch/virt: Enable cpu hotplug feature on virt machine
hw/loongarch/virt: Update the ACPI table for hotplug cpu
hw/loongarch/virt: Implement cpu plug interface
hw/loongarch/virt: Implement cpu unplug interface
hw/loongarch/virt: Add basic cpu plug interface framework
hw/loongarch/virt: Add topo properties on CPU object
hw/loongarch/virt: Add CPU topology support
hw/intc/loongarch_extioi: Use cpu plug notification
hw/intc/loongarch_extioi: Implment cpu hotplug interface
hw/intc/loongarch_extioi: Add basic hotplug framework
hw/intc/loongarch_extioi: Move gpio irq initial to common code
hw/intc/loongarch_ipi: Notify ipi object when cpu is plugged
hw/intc/loongarch_ipi: Implment cpu hotplug interface
hw/intc/loongarch_ipi: Add basic hotplug framework

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

show more ...

Merge tag 'pull-riscv-to-apply-20250305-1' of https://github.com/alistair23/qemu into staging

Third RISC-V PR for 10.0

* CSR coverity fixes
* Fix unexpected behavior of vector reduction instruction

Merge tag 'pull-riscv-to-apply-20250305-1' of https://github.com/alistair23/qemu into staging

Third RISC-V PR for 10.0

* CSR coverity fixes
* Fix unexpected behavior of vector reduction instructions when vl is 0
* Fix incorrect vlen comparison in prop_vlen_set
* Throw debug exception before page fault
* Remove redundant "hart_idx" masking from APLIC
* Add support for Control Transfer Records Ext
* Remove redundant struct members from the IOMMU
* Remove duplicate definitions from the IOMMU
* Fix tick_offset migration for Goldfish RTC
* Add serial alias in virt machine DTB
* Remove Bin Meng from RISC-V maintainers
* Add support for Control Transfer Records Ext
* Log guest errors when reserved bits are set in PTEs
* Add missing Sdtrig disas CSRs
* Correct the hpmevent sscofpmf mask
* Mask upper sscofpmf bits during validation
* Remove warnings about Smdbltrp/Smrnmi being disabled
* Respect mseccfg.RLB bit for TOR mode PMP entry
* Update KVM support to Linux 6.14-rc3
* IOMMU HPM support
* Support Sscofpmf/Svade/Svadu/Smnpm/Ssnpm extensions in KVM
* Add --ignore-family option to binfmt
* Refinement for AIA with KVM acceleration
* Reset time changes for KVM

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* tag 'pull-riscv-to-apply-20250305-1' of https://github.com/alistair23/qemu: (59 commits)
target/riscv/kvm: add missing KVM CSRs
target/riscv/kvm: add kvm_riscv_reset_regs_csr()
target/riscv/cpu: remove unneeded !kvm_enabled() check
hw/intc/aplic: refine kvm_msicfgaddr
hw/intc/aplic: refine the APLIC realize
hw/intc/imsic: refine the IMSIC realize
binfmt: Add --ignore-family option
binfmt: Normalize host CPU architecture
binfmt: Shuffle things around
target/riscv/kvm: Add some exts support
docs/specs/riscv-iommu.rst: add HPM support info
hw/riscv: add IOMMU HPM trace events
hw/riscv/riscv-iommu.c: add RISCV_IOMMU_CAP_HPM cap
hw/riscv/riscv-iommu: add hpm events mmio write
hw/riscv/riscv-iommu: add IOHPMCYCLES mmio write
hw/riscv/riscv-iommu: add IOCOUNTINH mmio writes
hw/riscv/riscv-iommu: instantiate hpm_timer
hw/riscv/riscv-iommu: add riscv_iommu_hpm_incr_ctr()
hw/riscv/riscv-iommu: add riscv-iommu-hpm file
hw/riscv/riscv-iommu-bits.h: HPM bits
...

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

show more ...

hw/intc/loongarch_extioi: Implment cpu hotplug interface

When cpu is added, connect extioi gpio irq to CPU irq pin.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>

hw/intc/loongarch_extioi: Add basic hotplug framework

LoongArch extioi interrupt controller routes peripheral interrupt
to multiple CPUs, physical cpu id is used in interrupt routing table.
Here hot

hw/intc/loongarch_extioi: Add basic hotplug framework

LoongArch extioi interrupt controller routes peripheral interrupt
to multiple CPUs, physical cpu id is used in interrupt routing table.
Here hotplug interface is added for extioi object, so that parent irq
line can be connected, and routing table can be added for new created
cpu.

Here only basic hotplug framework is added, it is stub function.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>

show more ...

hw/intc/loongarch_extioi: Move gpio irq initial to common code

When cpu is added, it will connect gpio irq line to cpu irq.
And cpu hot-add is put in common code, move gpio irq initial
part into com

hw/intc/loongarch_extioi: Move gpio irq initial to common code

When cpu is added, it will connect gpio irq line to cpu irq.
And cpu hot-add is put in common code, move gpio irq initial
part into common code.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>

show more ...

hw/intc/loongarch_ipi: Implment cpu hotplug interface

Add logic cpu allocation and cpu mapping with cpu hotplug interface.
When cpu is added, connect ipi gpio irq to CPU IRQ_IPI irq pin.

Signed-off

hw/intc/loongarch_ipi: Implment cpu hotplug interface

Add logic cpu allocation and cpu mapping with cpu hotplug interface.
When cpu is added, connect ipi gpio irq to CPU IRQ_IPI irq pin.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>

show more ...

hw/intc/loongarch_ipi: Add basic hotplug framework

LoongArch ipi can send interrupt to multiple CPUs, interrupt routing
to CPU comes from destination physical cpu id. Here hotplug interface
is added

hw/intc/loongarch_ipi: Add basic hotplug framework

LoongArch ipi can send interrupt to multiple CPUs, interrupt routing
to CPU comes from destination physical cpu id. Here hotplug interface
is added for IPI object, so that parent irq line can be connected, and
routing table can be added for new created cpu.

Here only basic hotplug framework is added, it is stub function.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>

show more ...

hw/intc: Remove TCG dependency on ARM_GICV3

The TYPE_ARM_GICV3 model doesn't have any particular
dependency on TCG, remove it. Rename the Kconfig selector
ARM_GICV3_TCG -> ARM_GICV3.

Fixes: a8a5546

hw/intc: Remove TCG dependency on ARM_GICV3

The TYPE_ARM_GICV3 model doesn't have any particular
dependency on TCG, remove it. Rename the Kconfig selector
ARM_GICV3_TCG -> ARM_GICV3.

Fixes: a8a5546798c ("hw/intc/arm_gicv3: Introduce CONFIG_ARM_GIC_TCG Kconfig selector")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Phil Dennis-Jordan <phil@philjordan.eu>
Tested-by: Phil Dennis-Jordan <phil@philjordan.eu>
Message-Id: <20241227202435.48055-2-philmd@linaro.org>

show more ...

hw/intc/aplic: refine kvm_msicfgaddr

Let kvm_msicfgaddr use the same format with mmsicfgaddr and smsicfgaddr.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Daniel Henrique B

hw/intc/aplic: refine kvm_msicfgaddr

Let kvm_msicfgaddr use the same format with mmsicfgaddr and smsicfgaddr.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20250224025722.3999-4-yongxuan.wang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

hw/intc/aplic: refine the APLIC realize

When the APLIC is emulated in the kernel, the GPIO output lines to CPUs
can be remove. In this case the APLIC trigger CPU interrupts by KVM APIs.

This patch

hw/intc/aplic: refine the APLIC realize

When the APLIC is emulated in the kernel, the GPIO output lines to CPUs
can be remove. In this case the APLIC trigger CPU interrupts by KVM APIs.

This patch also move the code that claim the CPU interrupts to the
beginning of APLIC realization. This can avoid the unnecessary resource
allocation before checking failed.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20250224025722.3999-3-yongxuan.wang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

hw/intc/imsic: refine the IMSIC realize

When the IMSIC is emulated in the kernel, the GPIO output lines to CPUs
and aia_ireg_rmw_fn setting can be remove. In this case the IMSIC
trigger CPU interrup

hw/intc/imsic: refine the IMSIC realize

When the IMSIC is emulated in the kernel, the GPIO output lines to CPUs
and aia_ireg_rmw_fn setting can be remove. In this case the IMSIC
trigger CPU interrupts by KVM APIs, and the RMW of IREG is handled in
kernel.

This patch also move the code that claim the CPU interrupts to the
beginning of IMSIC realization. This can avoid the unnecessary resource
allocation before checking failed.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20250224025722.3999-2-yongxuan.wang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

hw/intc/riscv_aplic: Remove redundant "hart_idx" masking

Remove the redundant masking of "hart_idx", as the same operation is
performed later during address calculation.

This change impacts the "ha

hw/intc/riscv_aplic: Remove redundant "hart_idx" masking

Remove the redundant masking of "hart_idx", as the same operation is
performed later during address calculation.

This change impacts the "hart_idx" value in the final qemu_log_mask()
call. The original "hart_idx" parameter should be used for logging to
ensure accuracy, rather than the masked value.

Signed-off-by: Huang Borong <huangborong@bosc.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20250115035105.19600-1-huangborong@bosc.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

show more ...

hw/intc/arm_gicv3_cpuif(): Remove redundant tests of is_a64()

In the gicv3_{irq,fiq,irqfiq}_access() functions, in the
arm_current_el(env) == 3 case we do the following test:
if (!is_a64(env) &&

hw/intc/arm_gicv3_cpuif(): Remove redundant tests of is_a64()

In the gicv3_{irq,fiq,irqfiq}_access() functions, in the
arm_current_el(env) == 3 case we do the following test:
if (!is_a64(env) && !arm_is_el3_or_mon(env)) {
r = CP_ACCESS_TRAP_EL3;
}

In this check, the "!is_a64(env)" is redundant, because if
we are at EL3 and in AArch64 then arm_is_el3_or_mon() will
return true and we will skip the if() body anyway.

Remove the unnecessary tests.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250130182309.717346-9-peter.maydell@linaro.org

show more ...

hw/intc/arm_gicv3_cpuif: Don't downgrade monitor traps for AArch32 EL3

In the gicv3_{irq,fiq,irqfiq}_access() functions, there is a check
which downgrades a CP_ACCESS_TRAP_EL3 to CP_ACCESS_TRAP if E

hw/intc/arm_gicv3_cpuif: Don't downgrade monitor traps for AArch32 EL3

In the gicv3_{irq,fiq,irqfiq}_access() functions, there is a check
which downgrades a CP_ACCESS_TRAP_EL3 to CP_ACCESS_TRAP if EL3 is not
AArch64. This has been there since the GIC was first implemented,
but it isn't right: if we are trapping because of SCR.IRQ or SCR.FIQ
then we definitely want to be going to EL3 (doing
AArch32.TakeMonitorTrapException() in pseudocode terms). We might
want to not take a trap at all, but we don't ever want to go to the
default target EL, because that would mean, for instance, taking a
trap to Hyp mode if the trapped access was made from Hyp mode.

(This might have been an attempt to work around our failure to
properly implement Monitor Traps.)

Remove the bogus check.

Cc: qemu-stable@nongnu.org
Fixes: 359fbe65e01e ("hw/intc/arm_gicv3: Implement GICv3 CPU interface registers")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250130182309.717346-7-peter.maydell@linaro.org

show more ...

hw/arm: Mark Allwinner Technology devices as little-endian

These devices are only used by the ARM targets, which are
only built as little-endian. Therefore the DEVICE_NATIVE_ENDIAN
definition expand

hw/arm: Mark Allwinner Technology devices as little-endian

These devices are only used by the ARM targets, which are
only built as little-endian. Therefore the DEVICE_NATIVE_ENDIAN
definition expand to DEVICE_LITTLE_ENDIAN (besides, the
DEVICE_BIG_ENDIAN case isn't tested). Simplify directly using
DEVICE_LITTLE_ENDIAN.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250212113938.38692-2-philmd@linaro.org>

show more ...

hw/intc/xilinx_intc: Make device endianness configurable

Replace the DEVICE_NATIVE_ENDIAN MemoryRegionOps by a pair of
DEVICE_LITTLE_ENDIAN / DEVICE_BIG_ENDIAN.

Add the "endianness" property to sel

hw/intc/xilinx_intc: Make device endianness configurable

Replace the DEVICE_NATIVE_ENDIAN MemoryRegionOps by a pair of
DEVICE_LITTLE_ENDIAN / DEVICE_BIG_ENDIAN.

Add the "endianness" property to select the device endianness.
This property is unspecified by default, and machines need to
set it explicitly.

Set the proper endianness for each machine using the device.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250213122217.62654-3-philmd@linaro.org>

show more ...

hw/intc/apic: Fixes magic number use, removes outdated comment

This changes replaces the use of an explicit literal constant for
the APIC base address mask with the existing symbolic constant
intend

hw/intc/apic: Fixes magic number use, removes outdated comment

This changes replaces the use of an explicit literal constant for
the APIC base address mask with the existing symbolic constant
intended for this purpose.

Additionally, we remove the comment about not being able to
re-enable the APIC after disabling it. This is no longer
the case after the APIC implementation's state machine was
modified in 9.0.

Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20241209203629.74436-11-phil@philjordan.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

show more ...

hw/intc/loongarch_ipi: Use alternative implemation for cpu_by_arch_id

There is arch_id and CPUState pointer in IPICore object. With function
cpu_by_arch_id() it can be implemented by parsing IPICore

hw/intc/loongarch_ipi: Use alternative implemation for cpu_by_arch_id

There is arch_id and CPUState pointer in IPICore object. With function
cpu_by_arch_id() it can be implemented by parsing IPICore array inside,
rather than possible_cpus array.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>

show more ...

hw/intc/loongson_ipi: Add more input parameter for cpu_by_arch_id

Add logic cpu index input parameter for function cpu_by_arch_id,
CPUState::cpu_index is logic cpu slot index for possible_cpus.

At

hw/intc/loongson_ipi: Add more input parameter for cpu_by_arch_id

Add logic cpu index input parameter for function cpu_by_arch_id,
CPUState::cpu_index is logic cpu slot index for possible_cpus.

At the same time it is logic index with LoongsonIPICommonState::IPICore,
here hide access for CPUState::cpu_index directly, it comes from
function cpu_by_arch_id().

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>

show more ...

hw/intc/loongarch_ipi: Remove property num-cpu

Since cpu number can be acquired from possible_cpu_arch_ids(),
num-cpu property is not necessary. Here remove num-cpu property
for object TYPE_LOONGARC

hw/intc/loongarch_ipi: Remove property num-cpu

Since cpu number can be acquired from possible_cpu_arch_ids(),
num-cpu property is not necessary. Here remove num-cpu property
for object TYPE_LOONGARCH_IPI object.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>

show more ...

hw/intc/loongarch_ipi: Get cpu number from possible_cpu_arch_ids

Supported CPU number can be acquired from function
possible_cpu_arch_ids(), cpu-num property is not necessary and can
be removed.

Si

hw/intc/loongarch_ipi: Get cpu number from possible_cpu_arch_ids

Supported CPU number can be acquired from function
possible_cpu_arch_ids(), cpu-num property is not necessary and can
be removed.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>

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