hw/intc/loongarch_extioi: Use cpu plug notification

Use hotplug_handler_plug() to nofity extioi object when cold-plug
cpu is created, so that extioi can set and configure irq routing
to new cpu.

Si

hw/intc/loongarch_extioi: Use cpu plug notification

Use hotplug_handler_plug() to nofity extioi object when cold-plug
cpu is created, so that extioi can set and configure irq routing
to new cpu.

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

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hw/intc/loongarch_ipi: Notify ipi object when cpu is plugged

Use hotplug_handler_plug() to nofity ipi object when cold-plug
cpu is created, so that ipi can set and configure irq routing
to new cpu.

hw/intc/loongarch_ipi: Notify ipi object when cpu is plugged

Use hotplug_handler_plug() to nofity ipi object when cold-plug
cpu is created, so that ipi can set and configure irq routing
to new cpu.

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

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target/loongarch: Enable virtual extioi feature

Feature virtual extioi is loongArch virt machine property rather than
vCPU property in qemu side. However it is vCPU property in KVM kernel
side, here

target/loongarch: Enable virtual extioi feature

Feature virtual extioi is loongArch virt machine property rather than
vCPU property in qemu side. However it is vCPU property in KVM kernel
side, here add loongArch virt machine property checking and enable virt
extioi feature when vCPU is created.

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

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hw/loongarch/virt: CPU irq line connection improvement

Interrupt controller extioi and ipi connect to CPU with irq line method.
With command -smp x, -device la464-loongarch-cpu, smp.cpus is not
accu

hw/loongarch/virt: CPU irq line connection improvement

Interrupt controller extioi and ipi connect to CPU with irq line method.
With command -smp x, -device la464-loongarch-cpu, smp.cpus is not
accurate for all possible CPU objects, possible_cpu_arch_ids() is used.

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

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hw/loongarch/virt: Remove unused ipistate

Field ipistate in LoongArch CPU object is not used any more,
remove it here.

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

hw/loongarch/virt: Remove unused ipistate

Field ipistate in LoongArch CPU object is not used any more,
remove it here.

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

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hw/loongarch/virt: Set iocsr address space when CPU is created

There is only one iocsr address space for the whole virt-machine
board. When CPU is created, the one of percpu points to that of
the bo

hw/loongarch/virt: Set iocsr address space when CPU is created

There is only one iocsr address space for the whole virt-machine
board. When CPU is created, the one of percpu points to that of
the board.

Here set iocsr address space when CPU is created rather than IPI
creation stage.

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

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hw/loongarch/virt: Add separate file for fdt building

Similiar with virt-acpi-build.c, file virt-fdt-build.c is added here.
And move functions relative with fdt table building to the file.

It is on

hw/loongarch/virt: Add separate file for fdt building

Similiar with virt-acpi-build.c, file virt-fdt-build.c is added here.
And move functions relative with fdt table building to the file.

It is only code movement and there is no function change.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>

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hw/loongarch/virt: Rename function prefix name

Replace function prefix name loongarch_xxx with virt_xxx in file
virt-acpi-build.c

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

hw/loongarch/virt: Rename function prefix name

Replace function prefix name loongarch_xxx with virt_xxx in file
virt-acpi-build.c

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>

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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>

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hw/loongarch/virt: Checkpatch cleanup

Code cleanup with directory hw/loongarch/, removing errors from
command "scripts/checkpatch.pl hw/loongarch/*"

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

hw/loongarch/virt: Checkpatch cleanup

Code cleanup with directory hw/loongarch/, removing errors from
command "scripts/checkpatch.pl hw/loongarch/*"

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250103064514.2660438-1-maobibo@loongson.cn>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

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hw/intc/loongarch_extioi: Remove num-cpu property

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_LOONG

hw/intc/loongarch_extioi: Remove num-cpu property

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_EXTIOI_COMMON object.

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

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hw/pci-host/gpex: Allow more than 4 legacy IRQs

Some boards such as vmapple don't do real legacy PCI IRQ swizzling.
Instead, they just keep allocating more board IRQ lines for each new
legacy IRQ. L

hw/pci-host/gpex: Allow more than 4 legacy IRQs

Some boards such as vmapple don't do real legacy PCI IRQ swizzling.
Instead, they just keep allocating more board IRQ lines for each new
legacy IRQ. Let's support that mode by giving instantiators a new
"nr_irqs" property they can use to support more than 4 legacy IRQ lines.
In this mode, GPEX will export more IRQ lines, one for each device.

Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20241223221645.29911-9-phil@philjordan.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

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hw/loongarch/virt: Improve fdt table creation for CPU object

For CPU object, possible_cpu_arch_ids() function is used rather than
smp.cpus. With command -smp x, -device la464-loongarch-cpu, smp.cpus

hw/loongarch/virt: Improve fdt table creation for CPU object

For CPU object, possible_cpu_arch_ids() function is used rather than
smp.cpus. With command -smp x, -device la464-loongarch-cpu, smp.cpus
is not accurate for all possible CPU objects, possible_cpu_arch_ids()
is used here.

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

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hw/loongarch/virt: Create fdt table on machine creation done notification

The same with ACPI table, fdt table is created on machine done
notification. Some objects like CPU objects can be created wi

hw/loongarch/virt: Create fdt table on machine creation done notification

The same with ACPI table, fdt table is created on machine done
notification. Some objects like CPU objects can be created with cold-plug
method with command such as -smp x, -device la464-loongarch-cpu, so all
objects finish to create when machine is done.

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

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include: Rename sysemu/ -> system/

Headers in include/sysemu/ are not only related to system
*emulation*, they are also used by virtualization. Rename
as system/ which is clearer.

Files renamed man

include: Rename sysemu/ -> system/

Headers in include/sysemu/ are not only related to system
*emulation*, they are also used by virtualization. Rename
as system/ which is clearer.

Files renamed manually then mechanical change using sed tool.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Lei Yang <leiyang@redhat.com>
Message-Id: <20241203172445.28576-1-philmd@linaro.org>

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hw/intc/loongarch_pch: Code cleanup about loongarch_pch_pic

Remove definition about LoongArchPCHPIC and LOONGARCH_PCH_PIC, and
replace them with LoongArchPICCommonState and LOONGARCH_PIC_COMMON
sepa

hw/intc/loongarch_pch: Code cleanup about loongarch_pch_pic

Remove definition about LoongArchPCHPIC and LOONGARCH_PCH_PIC, and
replace them with LoongArchPICCommonState and LOONGARCH_PIC_COMMON
separately. Also remove unnecessary header files.

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

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hw/loongarch/virt: Add FDT table support with acpi ged pm register

ACPI ged is used for power management on LoongArch virt platform, in
general it is parsed from acpi table. However if system boot d

hw/loongarch/virt: Add FDT table support with acpi ged pm register

ACPI ged is used for power management on LoongArch virt platform, in
general it is parsed from acpi table. However if system boot directly from
elf kernel, no UEFI bios is provided and acpi table cannot be used also.

Here acpi ged pm register is exposed with FDT table, it is compatbile
with syscon method in FDT table, only that acpi ged pm register is accessed
with 8-bit mode, rather with 32-bit mode.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Tested-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240918014206.2165821-3-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>

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hw/char: Extract serial-mm

hw/char/serial currently contains the implementation of both TYPE_SERIAL and
TYPE_SERIAL_MM. According to serial_class_init(), TYPE_SERIAL is an internal
class while TYPE_

hw/char: Extract serial-mm

hw/char/serial currently contains the implementation of both TYPE_SERIAL and
TYPE_SERIAL_MM. According to serial_class_init(), TYPE_SERIAL is an internal
class while TYPE_SERIAL_MM is used by numerous machine types directly. Let's
move the latter into its own module which makes the dependencies more obvious
and the code more tidy.

The includes and the dependencies have been converted mechanically except in the
hw/char directories which were updated manually. The result was compile-tested.
Now, only hw/char makes direct use of TYPE_SERIAL:

# grep -r -e "select SERIAL" | grep -v SERIAL_
hw/char/Kconfig: select SERIAL
hw/char/Kconfig: select SERIAL
hw/char/Kconfig: select SERIAL
hw/char/Kconfig: select SERIAL
hw/char/Kconfig: select SERIAL

# grep -r -e "/serial\\.h"
include/hw/char/serial-mm.h:#include "hw/char/serial.h"
hw/char/serial-pci-multi.c:#include "hw/char/serial.h"
hw/char/serial.c:#include "hw/char/serial.h"
hw/char/serial-isa.c:#include "hw/char/serial.h"
hw/char/serial-pci.c:#include "hw/char/serial.h"

Tested-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Link: https://lore.kernel.org/r/20240905073832.16222-4-shentey@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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hw/loongarch/virt: Add description for virt machine type

The description about virt machine type is removed by mistake, add
new description here. Here is output result with command
"./qemu-system-lo

hw/loongarch/virt: Add description for virt machine type

The description about virt machine type is removed by mistake, add
new description here. Here is output result with command
"./qemu-system-loongarch64 -M help"

Supported machines are:
none empty machine
virt QEMU LoongArch Virtual Machine (default)
x-remote Experimental remote machine

Without the patch, it shows as follows:
Supported machines are:
none empty machine
virt (null) (default)
x-remote Experimental remote machine

Fixes: ef2f11454c(hw/loongarch/virt: Replace Loongson IPI with LoongArch IPI)
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

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hw/loongarch: virt: pass random seed to fdt

If the FDT contains /chosen/rng-seed, then the Linux RNG will use it to
initialize early. Set this using the usual guest random number
generation function

hw/loongarch: virt: pass random seed to fdt

If the FDT contains /chosen/rng-seed, then the Linux RNG will use it to
initialize early. Set this using the usual guest random number
generation function.

This is the same procedure that's done in b91b6b5a2c ("hw/microblaze:
pass random seed to fdt"), e4b4f0b71c ("hw/riscv: virt: pass random seed
to fdt"), c6fe3e6b4c ("hw/openrisc: virt: pass random seed to fdt"),
67f7e426e5 ("hw/i386: pass RNG seed via setup_data entry"), c287941a4d
("hw/rx: pass random seed to fdt"), 5e19cc68fb ("hw/mips: boston: pass
random seed to fdt"), 6b23a67916 ("hw/nios2: virt: pass random seed to fdt")
c4b075318e ("hw/ppc: pass random seed to fdt"), and 5242876f37
("hw/arm/virt: dt: add rng-seed property").

These earlier commits later were amended to rerandomize the RNG seed on
snapshot load, but the LoongArch code somehow already does that, despite
not having this patch here, presumably due to some lucky copy and
pasting.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240905153316.2038769-1-Jason@zx2c4.com>
Signed-off-by: Song Gao <gaosong@loongson.cn>

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hw/loongarch: virt: support up to 4 serial ports

In order to support additional channels of communication using
`-serial`, add several serial ports, up to the standard 4 generally
supported by the 8

hw/loongarch: virt: support up to 4 serial ports

In order to support additional channels of communication using
`-serial`, add several serial ports, up to the standard 4 generally
supported by the 8250 driver.

Fixed: https://lore.kernel.org/all/20240907143439.2792924-1-Jason@zx2c4.com/

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Bibo Mao <maobibo@loongson.cn>
[gaosong: ACPI uart need't reverse order]
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240907143439.2792924-1-Jason@zx2c4.com>

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hw/loongarch/virt: Replace Loongson IPI with LoongArch IPI

Loongarch IPI inherits from class LoongsonIPICommonClass, and it
only contains Loongarch 3A5000 virt machine specific interfaces,
rather th

hw/loongarch/virt: Replace Loongson IPI with LoongArch IPI

Loongarch IPI inherits from class LoongsonIPICommonClass, and it
only contains Loongarch 3A5000 virt machine specific interfaces,
rather than mix different machine implementations together.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
[PMD: Rebased]
Co-Developed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Tested-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20240805180622.21001-14-philmd@linaro.org>

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hw/loongarch/virt: Remove unused assignment

There is abuse usage about local variable gap. Remove
duplicated assignment and solve Coverity reported error.

Resolves: Coverity CID 1546441
Fixes: 3cc4

hw/loongarch/virt: Remove unused assignment

There is abuse usage about local variable gap. Remove
duplicated assignment and solve Coverity reported error.

Resolves: Coverity CID 1546441
Fixes: 3cc451cbce ("hw/loongarch: Refine fwcfg memory map")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240612033637.167787-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>

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hw/mem/pc-dimm: Remove legacy_align argument from pc_dimm_pre_plug()

'legacy_align' is always NULL, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <th

hw/mem/pc-dimm: Remove legacy_align argument from pc_dimm_pre_plug()

'legacy_align' is always NULL, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20240617071118.60464-15-philmd@linaro.org>

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hw/smbios: Remove 'uuid_encoded' argument from smbios_set_defaults()

'uuid_encoded' is always true, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Zhao Liu <zhao1

hw/smbios: Remove 'uuid_encoded' argument from smbios_set_defaults()

'uuid_encoded' is always true, remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20240617071118.60464-12-philmd@linaro.org>

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