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Modify the default behavior of bhyve such that it no longer forces the use of

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x2apic mode on the guest.

The guest can decide whether or not it wants to use legacy mmio or x2apic
access to the APIC by writing to the MSR_APICBASE register.

Obtained from:	NetApp
This commit is contained in:
Neel Natu 2012-12-16 01:20:08 +00:00
parent 682b847ede
commit 485f986ac9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/bhyve/; revision=244283
1 changed files with 1 additions and 3 deletions
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4
sys/amd64/vmm/io/vlapic.c
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@ -896,8 +896,6 @@ vlapic_set_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state state)
vlapic = vm_lapic(vm, vcpuid);
if (state == X2APIC_ENABLED)
vlapic->msr_apicbase |= APICBASE_X2APIC;
else
if (state == X2APIC_DISABLED)
vlapic->msr_apicbase &= ~APICBASE_X2APIC;
}