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Postpone vmm module initialization until after SMP is initialized - particularly

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that 'smp_started != 0'.

This is required because the VT-x initialization calls smp_rendezvous()
to set the CR4_VMXE bit on all the cpus.

With this change we can preload vmm.ko from the loader.

Reported by:	alfred@, sbruno@
Obtained from:	NetApp
This commit is contained in:
neel 2013-01-21 01:33:10 +00:00
parent aa7091a3ab
commit 92a8d9884d
1 changed files with 8 additions and 4 deletions
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12
sys/amd64/vmm/vmm.c
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@ -249,11 +249,15 @@ static moduledata_t vmm_kmod = {
};
/*
* Execute the module load handler after the pci passthru driver has had
* a chance to claim devices. We need this information at the time we do
* iommu initialization.
* vmm initialization has the following dependencies:
*
* - iommu initialization must happen after the pci passthru driver has had
* a chance to attach to any passthru devices (after SI_SUB_CONFIGURE).
*
* - VT-x initialization requires smp_rendezvous() and therefore must happen
* after SMP is fully functional (after SI_SUB_SMP).
*/
DECLARE_MODULE(vmm, vmm_kmod, SI_SUB_CONFIGURE + 1, SI_ORDER_ANY);
DECLARE_MODULE(vmm, vmm_kmod, SI_SUB_SMP + 1, SI_ORDER_ANY);
MODULE_VERSION(vmm, 1);
SYSCTL_NODE(_hw, OID_AUTO, vmm, CTLFLAG_RW, NULL, NULL);