Re: [Qemu-devel] [PATCH v1 3/3] raspi: Add "raspi3" machine type
Hi, On 02/15/2018 02:39 PM, Peter Maydell wrote: On 8 February 2018 at 05:50, Pekka Enbergwrote: This patch adds a "raspi3" machine type, which can now be selected as the machine to run on by users via the "-M" command line option to QEMU. The machine type does *not* ignore memory transaction failures so we likely need to add some dummy devices later when people run something more complicated than what I'm using for testing. Signed-off-by: Pekka Enberg --- hw/arm/raspi.c | 21 + 1 file changed, 21 insertions(+) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index 66fe10e376..048ff23a51 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -187,3 +187,24 @@ static void raspi2_machine_init(MachineClass *mc) mc->ignore_memory_transaction_failures = true; }; DEFINE_MACHINE("raspi2", raspi2_machine_init) + +static void raspi3_init(MachineState *machine) +{ +raspi_init(machine, 3); +} + +static void raspi3_machine_init(MachineClass *mc) +{ +mc->desc = "Raspberry Pi 3"; +mc->init = raspi3_init; +mc->block_default_type = IF_SD; +mc->no_parallel = 1; +mc->no_floppy = 1; +mc->no_cdrom = 1; +mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a53"); +mc->max_cpus = BCM2836_NCPUS; +mc->min_cpus = BCM2836_NCPUS; +mc->default_cpus = BCM2836_NCPUS; +mc->default_ram_size = 1024 * 1024 * 1024; +} +DEFINE_MACHINE("raspi3", raspi3_machine_init) Hi. This patch breaks "make check", because it adds the raspi3 to the arm-softmmu (32-bit guest CPUs only) build, where the cortex-a53 CPU doesn't exist: e104462:xenial:qemu$ ./build/x86/arm-softmmu/qemu-system-arm -M raspi3 ** ERROR:/home/petmay01/linaro/qemu-from-laptop/qemu/qom/object.c:372:object_initialize_with_type: assertion failed: (type != NULL) Aborted (core dumped) The usual way we avoid this is that 64-bit only boards are in their own source file, which is only compiled if the right CONFIG_FOO is set by default-configs/aarch64-softmmu.mak. In this case splitting the 64-bit board into its own source file would be weird and awkward, so the simple thing is to guard the raspi3 bits with #ifdef TARGET_AARCH64. (You might think we could define a CONFIG_RASPI3 in aarch64-softmmu.mak and #ifdef on it, but for some reason we don't expose those CONFIG_* to C code, possibly just because we've never needed to in the past...) Since this was the only code change needed, I'm just going to make it and apply the patchset to target-arm.next, rather than ask you to do a respin. (There was also a stray space-at-end-of-line in patch 2 which checkpatch grumbles about; I'll fix that up too.) Oh, it would have helped if I had actually read the whole thread before sending out v2. If I understood correctly, you only applied the first two patches (sorry about that trailing whitespace!). You therefore can just pick patch 3 from the v2 as the first two patches are unchanged. Regards, - Pekka
Re: [Qemu-devel] [PATCH v1 3/3] raspi: Add "raspi3" machine type
On 8 February 2018 at 05:50, Pekka Enbergwrote: > This patch adds a "raspi3" machine type, which can now be selected as > the machine to run on by users via the "-M" command line option to QEMU. > > The machine type does *not* ignore memory transaction failures so we > likely need to add some dummy devices later when people run something > more complicated than what I'm using for testing. > > Signed-off-by: Pekka Enberg > --- > hw/arm/raspi.c | 21 + > 1 file changed, 21 insertions(+) > > diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c > index 66fe10e376..048ff23a51 100644 > --- a/hw/arm/raspi.c > +++ b/hw/arm/raspi.c > @@ -187,3 +187,24 @@ static void raspi2_machine_init(MachineClass *mc) > mc->ignore_memory_transaction_failures = true; > }; > DEFINE_MACHINE("raspi2", raspi2_machine_init) > + > +static void raspi3_init(MachineState *machine) > +{ > +raspi_init(machine, 3); > +} > + > +static void raspi3_machine_init(MachineClass *mc) > +{ > +mc->desc = "Raspberry Pi 3"; > +mc->init = raspi3_init; > +mc->block_default_type = IF_SD; > +mc->no_parallel = 1; > +mc->no_floppy = 1; > +mc->no_cdrom = 1; > +mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a53"); > +mc->max_cpus = BCM2836_NCPUS; > +mc->min_cpus = BCM2836_NCPUS; > +mc->default_cpus = BCM2836_NCPUS; > +mc->default_ram_size = 1024 * 1024 * 1024; > +} > +DEFINE_MACHINE("raspi3", raspi3_machine_init) Hi. This patch breaks "make check", because it adds the raspi3 to the arm-softmmu (32-bit guest CPUs only) build, where the cortex-a53 CPU doesn't exist: e104462:xenial:qemu$ ./build/x86/arm-softmmu/qemu-system-arm -M raspi3 ** ERROR:/home/petmay01/linaro/qemu-from-laptop/qemu/qom/object.c:372:object_initialize_with_type: assertion failed: (type != NULL) Aborted (core dumped) The usual way we avoid this is that 64-bit only boards are in their own source file, which is only compiled if the right CONFIG_FOO is set by default-configs/aarch64-softmmu.mak. In this case splitting the 64-bit board into its own source file would be weird and awkward, so the simple thing is to guard the raspi3 bits with #ifdef TARGET_AARCH64. (You might think we could define a CONFIG_RASPI3 in aarch64-softmmu.mak and #ifdef on it, but for some reason we don't expose those CONFIG_* to C code, possibly just because we've never needed to in the past...) Since this was the only code change needed, I'm just going to make it and apply the patchset to target-arm.next, rather than ask you to do a respin. (There was also a stray space-at-end-of-line in patch 2 which checkpatch grumbles about; I'll fix that up too.) thanks -- PMM
[Qemu-devel] [PATCH v1 3/3] raspi: Add "raspi3" machine type
This patch adds a "raspi3" machine type, which can now be selected as the machine to run on by users via the "-M" command line option to QEMU. The machine type does *not* ignore memory transaction failures so we likely need to add some dummy devices later when people run something more complicated than what I'm using for testing. Signed-off-by: Pekka Enberg--- hw/arm/raspi.c | 21 + 1 file changed, 21 insertions(+) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index 66fe10e376..048ff23a51 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -187,3 +187,24 @@ static void raspi2_machine_init(MachineClass *mc) mc->ignore_memory_transaction_failures = true; }; DEFINE_MACHINE("raspi2", raspi2_machine_init) + +static void raspi3_init(MachineState *machine) +{ +raspi_init(machine, 3); +} + +static void raspi3_machine_init(MachineClass *mc) +{ +mc->desc = "Raspberry Pi 3"; +mc->init = raspi3_init; +mc->block_default_type = IF_SD; +mc->no_parallel = 1; +mc->no_floppy = 1; +mc->no_cdrom = 1; +mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a53"); +mc->max_cpus = BCM2836_NCPUS; +mc->min_cpus = BCM2836_NCPUS; +mc->default_cpus = BCM2836_NCPUS; +mc->default_ram_size = 1024 * 1024 * 1024; +} +DEFINE_MACHINE("raspi3", raspi3_machine_init) -- 2.14.3