Hey Eric, On Mon, Jun 26, 2023 at 12:13:30PM -0400, Eric DeVolder wrote: > The kexec and crash kernel options are provided in the common > kernel/Kconfig.kexec. Utilize the common options and provide > the ARCH_SUPPORTS_ and ARCH_SELECTS_ entries to recreate the > equivalent set of KEXEC and CRASH options. I find this diff a little hard to follow (since the other half off the change is in another patch), so it may be me missing something, but are you sure? > > Signed-off-by: Eric DeVolder <eric.devolder@xxxxxxxxxx> > --- > arch/riscv/Kconfig | 48 ++++++++++++++-------------------------------- > 1 file changed, 14 insertions(+), 34 deletions(-) > > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig > index 5966ad97c30c..c484abd9bbfd 100644 > --- a/arch/riscv/Kconfig > +++ b/arch/riscv/Kconfig > @@ -585,48 +585,28 @@ config RISCV_BOOT_SPINWAIT > > If unsure what to do here, say N. > > -config KEXEC > - bool "Kexec system call" > - depends on MMU > +config ARCH_SUPPORTS_KEXEC > + def_bool MMU > + > +config ARCH_SELECTS_KEXEC > + def_bool y > + depends on KEXEC > select HOTPLUG_CPU if SMP > - select KEXEC_CORE > - help > - kexec is a system call that implements the ability to shutdown your > - current kernel, and to start another kernel. It is like a reboot > - but it is independent of the system firmware. And like a reboot > - you can start any kernel with it, not just Linux. > > - The name comes from the similarity to the exec system call. > +config ARCH_SUPPORTS_KEXEC_FILE > + def_bool 64BIT && MMU && CRYPTO=y && CRYPTO_SHA256=y This looks like a change to me. Previously, only KEXEC_PURGATORY required these crypto options to be like so, but now KEXEC_FILE needs them too. What am I missing? Cheers, Conor. > > -config KEXEC_FILE > - bool "kexec file based systmem call" > - depends on 64BIT && MMU > - select HAVE_IMA_KEXEC if IMA > - select KEXEC_CORE > +config ARCH_SELECTS_KEXEC_FILE > + def_bool y > + depends on KEXEC_FILE > select KEXEC_ELF > - help > - This is new version of kexec system call. This system call is > - file based and takes file descriptors as system call argument > - for kernel and initramfs as opposed to list of segments as > - accepted by previous system call. > - > - If you don't know what to do here, say Y. > + select HAVE_IMA_KEXEC if IMA > > config ARCH_HAS_KEXEC_PURGATORY > def_bool KEXEC_FILE > - depends on CRYPTO=y > - depends on CRYPTO_SHA256=y > > -config CRASH_DUMP > - bool "Build kdump crash kernel" > - help > - Generate crash dump after being started by kexec. This should > - be normally only set in special crash dump kernels which are > - loaded in the main kernel with kexec-tools into a specially > - reserved region and then later executed after a crash by > - kdump/kexec. > - > - For more details see Documentation/admin-guide/kdump/kdump.rst > +config ARCH_SUPPORTS_CRASH_DUMP > + def_bool y > > config COMPAT > bool "Kernel support for 32-bit U-mode" > -- > 2.31.1 >
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