On Fri, Aug 31, 2018 at 03:31:09PM -0400, Collin Walling wrote: > On 08/31/2018 12:51 PM, Collin Walling wrote: > > A new diagnose instruction, 318, allows the kernel to set an 8-byte "Control > > Program Code" (CPC) that is composed of: > > > > 1-byte Control Program Name Code (CPNC) > > 7-byte Control Program Version Code (CPVC) composed of: > > 3-bytes for Linux Kernel version (determined at build-time) > > 3-bytes for Distribution Identifier (referred to as distro_id; set by Kconfig option) > > 1-byte trailing NULL > > > > Note about distro_id: > > [ > > The initial idea for the 3-byte distro_id is for each distribution to set > > three characters that correspond to their distribution name (for a theoretical > > distributor "ACME," they could set "ACM" as the distro_id). A registry file > > could be included in the s390 kernel documentation to avoid name collisions. > > ] > > Another (likely better) idea is to use 1-byte for the distribution, followed > by 2-bytes for major.minor release. That's sounds indeed better. Thanks and regards, Hendrik
