On 11/7/23 18:29, Russell King (Oracle) wrote:
From: James Morse
Neither arm64 nor riscv support physical hotadd of CPUs that were not
present at boot. For arm64 much of the platform description is in static
tables which do not have update methods. arm64 does support HOTPLUG_CPU,
which is ba
Hi Russell,
On 11/7/23 18:29, Russell King (Oracle) wrote:
From: James Morse
Three of the five ACPI architectures create sysfs entries using
register_cpu() for present CPUs, whereas arm64, riscv and all
GENERIC_CPU_DEVICES do this for possible CPUs.
Registering a CPU is what causes them to sh
On 11/7/23 18:29, Russell King (Oracle) wrote:
From: James Morse
Architectures often have extra per-cpu work that needs doing
before a CPU is registered, often to determine if a CPU is
hotpluggable.
To allow the ACPI architectures to use GENERIC_CPU_DEVICES, move
the cpu_register() call int
On Thu, Nov 09, 2023 at 06:09:32PM +0800, Shaoqin Huang wrote:
> Hi Russell,
>
> On 11/7/23 18:29, Russell King (Oracle) wrote:
> > From: James Morse
> >
> > Three of the five ACPI architectures create sysfs entries using
> > register_cpu() for present CPUs, whereas arm64, riscv and all
> > GENE
Hello Prarit,
Il giorno mer 8 nov 2023 alle ore 16:33 Prarit Bhargava
ha scritto:
>
> On 9/14/23 07:27, Alessandro Carminati (Red Hat) wrote:
> > Update kernel-parameters.txt to reflect new deferred signature
> > verification.
> > Enhances boot speed by allowing unsigned modules in initrd after
>
On 11/7/23 18:29, Russell King (Oracle) wrote:
From: James Morse
Add arch_unregister_cpu() to allow the ACPI machinery to call
unregister_cpu(). This is enough for arm64, riscv and loongarch, but
needs to be overridden by x86 and ia64 who need to do more work.
CC: Jean-Philippe Brucker
Sig
gentle ping
Il giorno gio 14 set 2023 alle ore 13:28 Alessandro Carminati (Red
Hat) ha scritto:
>
> This patch sets up a new feature to the Linux kernel to have the ability,
> while module signature checking is enabled, to delay the moment where
> these signatures are effectively checked. The fe
On 11/9/23 18:29, Russell King (Oracle) wrote:
On Thu, Nov 09, 2023 at 06:09:32PM +0800, Shaoqin Huang wrote:
Hi Russell,
On 11/7/23 18:29, Russell King (Oracle) wrote:
From: James Morse
Three of the five ACPI architectures create sysfs entries using
register_cpu() for present CPUs, where
On 11/7/23 18:30, Russell King (Oracle) wrote:
The differences between architecture specific implementations of
arch_register_cpu() are down to whether the CPU is hotpluggable or not.
Rather than overriding the weak version of arch_register_cpu(), provide
a function that can be used to provide
On 11/7/23 18:30, Russell King (Oracle) wrote:
From: James Morse
loongarch, mips, parisc, riscv and sh all print a warning if
register_cpu() returns an error. Architectures that use
GENERIC_CPU_DEVICES call panic() instead.
Errors in this path indicate something is wrong with the firmware
d
On 11/7/23 18:30, Russell King (Oracle) wrote:
Convert arm64 to use the arch_cpu_is_hotpluggable() helper rather than
arch_register_cpu().
Signed-off-by: Russell King (Oracle)
Reviewed-by: Shaoqin Huang
---
arch/arm64/kernel/setup.c | 8 ++--
1 file changed, 2 insertions(+), 6 dele
On 11/7/23 18:30, Russell King (Oracle) wrote:
From: James Morse
To allow ACPI's _STA value to hide CPUs that are present, but not
available to online right now due to VMM or firmware policy, the
register_cpu() call needs to be made by the ACPI machinery when ACPI
is in use. This allows it t
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