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Document the VM detection type and sysctl a bit better.

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This commit is contained in:
Ivan Voras 2010-03-02 23:57:42 +00:00
parent 2509081a31
commit 07ce8d9b43
2 changed files with 4 additions and 1 deletions
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2
sys/kern/subr_param.c
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@ -124,7 +124,7 @@ SYSCTL_ULONG(_kern, OID_AUTO, sgrowsiz, CTLFLAG_RDTUN, &sgrowsiz, 0,
"Amount to grow stack on a stack fault");
SYSCTL_PROC(_kern, OID_AUTO, vm_guest, CTLFLAG_RD | CTLTYPE_STRING,
NULL, 0, sysctl_kern_vm_guest, "A",
"Virtual machine detected? (none|generic|xen)");
"Virtual machine guest detected? (none|generic|xen)");
/*
* These have to be allocated somewhere; allocating

3
sys/sys/systm.h
View File

@ -65,6 +65,9 @@ extern int maxusers; /* system tune hint */
extern int ngroups_max; /* max # of supplemental groups */
extern int vm_guest; /* Running as virtual machine guest? */
/* Detected virtual machine guest types. The intention is to expand
* and/or add to the VM_GUEST_VM type if specific VM functionality is
* ever implemented (e.g. vendor-specific paravirtualization features). */
enum VM_GUEST { VM_GUEST_NO = 0, VM_GUEST_VM, VM_GUEST_XEN };
#ifdef INVARIANTS /* The option is always available */