KVM: nVMX: Exiting from L2 to L1

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This patch implements nested_vmx_vmexit(), called when the nested L2 guest
exits and we want to run its L1 parent and let it handle this exit.

Note that this will not necessarily be called on every L2 exit. L0 may decide
to handle a particular exit on its own, without L1's involvement; In that
case, L0 will handle the exit, and resume running L2, without running L1 and
without calling nested_vmx_vmexit(). The logic for deciding whether to handle
a particular exit in L1 or in L0, i.e., whether to call nested_vmx_vmexit(),
will appear in a separate patch below.

Signed-off-by: Nadav Har'El <nyh@il.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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Nadav Har'El 2011-05-25 23:11:34 +03:00 • committed by Avi Kivity

parent 99e65e805d

commit 4704d0befb

2 changed files with 266 additions and 0 deletions

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4

arch/x86/include/asm/vmx.h

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262

arch/x86/kvm/vmx.c

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