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KVM: nVMX: Add nested msr load/restore algorithm
authorWincy Van <fanwenyi0529@gmail.com>
Thu, 11 Dec 2014 05:52:58 +0000 (08:52 +0300)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 8 Jan 2015 21:45:14 +0000 (22:45 +0100)
commitff651cb613b4cc8aa2e4284525948872b4d77d66
tree8c3bcd9e4076404fa9a899b47ce321c716296e32tree | snapshot (tar.gz zip)
parentb1940cd21c0f4abdce101253e860feff547291b0commit | diff
KVM: nVMX: Add nested msr load/restore algorithm

Several hypervisors need MSR auto load/restore feature.
We read MSRs from VM-entry MSR load area which specified by L1,
and load them via kvm_set_msr in the nested entry.
When nested exit occurs, we get MSRs via kvm_get_msr, writing
them to L1`s MSR store area. After this, we read MSRs from VM-exit
MSR load area, and load them via kvm_set_msr.

Signed-off-by: Wincy Van <fanwenyi0529@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/include/uapi/asm/vmx.h diff | blob | blame | history
arch/x86/kvm/vmx.c diff | blob | blame | history
arch/x86/kvm/x86.c diff | blob | blame | history
virt/kvm/kvm_main.c diff | blob | blame | history