On 2023/6/13 1:27, 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_HAS_ and ARCH_SUPPORTS_ entries to recreate the > equivalent set of KEXEC and CRASH options. > > Signed-off-by: Eric DeVolder <eric.devolder@xxxxxxxxxx> > --- > arch/arm64/Kconfig | 61 ++++++++-------------------------------------- > 1 file changed, 10 insertions(+), 51 deletions(-) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 343e1e1cae10..33552476a877 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -1433,60 +1433,19 @@ config PARAVIRT_TIME_ACCOUNTING > > If in doubt, say N here. > > -config KEXEC > - depends on PM_SLEEP_SMP > - select KEXEC_CORE > - bool "kexec system call" > - 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. > - > -config KEXEC_FILE > - bool "kexec file based system call" > - select KEXEC_CORE > - select HAVE_IMA_KEXEC if IMA > - 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. > - > -config KEXEC_SIG > - bool "Verify kernel signature during kexec_file_load() syscall" > - depends on KEXEC_FILE > - help > - Select this option to verify a signature with loaded kernel > - image. If configured, any attempt of loading a image without > - valid signature will fail. > - > - In addition to that option, you need to enable signature > - verification for the corresponding kernel image type being > - loaded in order for this to work. > +config ARCH_HAS_KEXEC > + def_bool PM_SLEEP_SMP > > -config KEXEC_IMAGE_VERIFY_SIG > - bool "Enable Image signature verification support" > - default y > - depends on KEXEC_SIG > - depends on EFI && SIGNED_PE_FILE_VERIFICATION > - help > - Enable Image signature verification support. I don't see an alternative to this option. It's used in arch/arm64/kernel/kexec_image.c:135 > - > -comment "Support for PE file signature verification disabled" > - depends on KEXEC_SIG > - depends on !EFI || !SIGNED_PE_FILE_VERIFICATION > +config ARCH_HAS_KEXEC_FILE > + def_bool 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. > +config ARCH_SUPPORTS_KEXEC_FILE > + def_bool y > + depends on KEXEC_FILE > + select HAVE_IMA_KEXEC if IMA > > - For more details see Documentation/admin-guide/kdump/kdump.rst > +config ARCH_HAS_CRASH_DUMP > + def_bool y > > config TRANS_TABLE > def_bool y > -- Regards, Zhen Lei
