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authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>2008-12-25 13:38:57 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-12-25 13:39:03 +0100
commit44a01d5ba8a4d543694461cd3e178cfa6b3f221b (patch)
treee8f118a9eb4036784509af07ee14928ceb8a677f /net
parent5d360a75f87f288e9a25d56cca503a7c7939e490 (diff)
[S390] s390/hvc_console: z/VM IUCV hypervisor console support
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: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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