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Create sysctl node 'hw.vmm.vmx' and populate it with oids that expose the VMX

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hardware capabilities.

Obtained from:	NetApp
This commit is contained in:
Neel Natu 2013-04-13 21:41:51 +00:00
parent 27e644a80b
commit 3565b59ec0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=249450
1 changed files with 19 additions and 0 deletions
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19
sys/amd64/vmm/intel/vmx.c
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@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$");
#include <sys/malloc.h>
#include <sys/pcpu.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <vm/vm.h>
#include <vm/pmap.h>
@ -116,6 +117,9 @@ __FBSDID("$FreeBSD$");
MALLOC_DEFINE(M_VMX, "vmx", "vmx");
SYSCTL_DECL(_hw_vmm);
SYSCTL_NODE(_hw_vmm, OID_AUTO, vmx, CTLFLAG_RW, NULL, NULL);
int vmxon_enabled[MAXCPU];
static char vmxon_region[MAXCPU][PAGE_SIZE] __aligned(PAGE_SIZE);
@ -123,12 +127,25 @@ static uint32_t pinbased_ctls, procbased_ctls, procbased_ctls2;
static uint32_t exit_ctls, entry_ctls;
static uint64_t cr0_ones_mask, cr0_zeros_mask;
SYSCTL_ULONG(_hw_vmm_vmx, OID_AUTO, cr0_ones_mask, CTLFLAG_RD,
&cr0_ones_mask, 0, NULL);
SYSCTL_ULONG(_hw_vmm_vmx, OID_AUTO, cr0_zeros_mask, CTLFLAG_RD,
&cr0_zeros_mask, 0, NULL);
static uint64_t cr4_ones_mask, cr4_zeros_mask;
SYSCTL_ULONG(_hw_vmm_vmx, OID_AUTO, cr4_ones_mask, CTLFLAG_RD,
&cr4_ones_mask, 0, NULL);
SYSCTL_ULONG(_hw_vmm_vmx, OID_AUTO, cr4_zeros_mask, CTLFLAG_RD,
&cr4_zeros_mask, 0, NULL);
static volatile u_int nextvpid;
static int vmx_no_patmsr;
static int vmx_initialized;
SYSCTL_INT(_hw_vmm_vmx, OID_AUTO, initialized, CTLFLAG_RD,
&vmx_initialized, 0, "Intel VMX initialized");
/*
* Virtual NMI blocking conditions.
*
@ -593,6 +610,8 @@ vmx_init(void)
/* enable VMX operation */
smp_rendezvous(NULL, vmx_enable, NULL, NULL);
vmx_initialized = 1;
return (0);
}