It's still restricted to root. So if your guest is a class G user (as it should) then as root you can only do damage to your virtual machine, just as you can without vmcp.
-------- Original message -------- From: "Beard, Rick" <[email protected]> Date:2014/10/01 08:56 (GMT-05:00) To: [email protected] Cc: Subject: Re: [LINUX-390] vmcp on RHEL 7? Since it's part of the kernel now, I'm assuming there is a way to secure it to keep everyone from having access to issue VMCP commands? Rick -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Christian Borntraeger Sent: Wednesday, October 01, 2014 8:29 AM To: [email protected] Subject: Re: vmcp on RHEL 7? On 10/01/2014 02:13 PM, Michael MacIsaac wrote: > Hello list, > > Is vmcp is no longer a module on RHEL 7 (but it still works): > > # *modprobe vmcp* > modprobe: FATAL: Module vmcp not found. > # *vmcp q t* > TIME IS 08:09:48 EDT WEDNESDAY 10/01/14 > > Is this a change in the s390-tools, or just a RHEL 7 thing? Its an kernel change. the vmcp kernel part is now always builtin. https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f73a2b03c59b95a3ee8eebcc127350c77c950e87 This has changed with 2.6.35. (SLES11 has a change on top that reintroduces the modular build for SP1 to make this behave as the original GA version). Christian ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
