KVM: VMX: Add PML support in VMX

This patch adds PML support in VMX. A new module parameter 'enable_pml' is added
to allow user to enable/disable it manually.

Signed-off-by: Kai Huang <kai.huang@linux.intel.com>
Reviewed-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --cc arch/x86/include/asm/vmx.h
Simple merge

diff --cc arch/x86/include/uapi/asm/vmx.h
Simple merge

diff --cc arch/x86/kvm/trace.h
Simple merge

diff --cc arch/x86/kvm/vmx.c
Simple merge

diff --cc arch/x86/kvm/x86.c
Simple merge