• Hendrik Brueckner's avatar
    [S390] s390/hvc_console: z/VM IUCV hypervisor console support · 44a01d5b
    Hendrik Brueckner authored
    This patch introduces a new hypervisor console (HVC) back-end that provides
    terminal access over the z/VM inter-user communication vehicle (IUCV).
    
    The z/VM IUCV communication is independent of the regular tcp/ip network
    and allows access even if there is no network connection between two
    z/VM guest virtual machines.
    The z/VM IUCV hypervisor console back-end helps the user to access a
    z/VM guest virtual machine that lacks of network connectivity; and thus,
    provides a "full-screen" terminal alternative to 3215/3270 terminal sessions.
    
    Use the hvc_iucv=[0..8] kernel boot parameter to specify the number of
    HVC terminals using a z/VM IUCV back-end.
    
    A recent version of the s390-tools package is required to establish a
    terminal connection to a z/VM IUCV hypervisor console back-end.
    Signed-off-by: default avatarHendrik Brueckner <brueckner@linux.vnet.ibm.com>
    Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
    44a01d5b
Kconfig 38.8 KB