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SubjectRe: [RFC] arm64: kexec_file_load support
Date
Am Donnerstag, 07 Juli 2016, 14:12:45 schrieb Dave Young:
> If so maybe change a bit from your precious mentioned 7 args proposal like
> below?
>
> struct kexec_file_fd {
> enum kexec_file_type;
> int fd;
> }
>
> struct kexec_fdset {
> int nr_fd;
> struct kexec_file_fd fd[0];
> }
>
> int kexec_file_load(int kernel_fd, int initrd_fd,
> unsigned long cmdline_len, const char *cmdline_ptr,
> unsigned long flags, struct kexec_fdset *extra_fds);


Is there a way for the kernel to distinguish whether the process passed 5 or
6 arguments? How can it know whether extra_fds is a valid argument or just
garbage? I think we have to define a new flag KEXEC_FILE_EXTRA_FDS so that
the process can signal that it is using the new interface.

--
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center

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