path: root/virt/kvm
diff options
authorWincy Van <>2014-12-11 08:52:58 +0300
committerPaolo Bonzini <>2015-01-08 22:45:14 +0100
commitff651cb613b4cc8aa2e4284525948872b4d77d66 (patch)
tree8c3bcd9e4076404fa9a899b47ce321c716296e32 /virt/kvm
parentb1940cd21c0f4abdce101253e860feff547291b0 (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 <> Signed-off-by: Paolo Bonzini <>
Diffstat (limited to 'virt/kvm')
1 files changed, 1 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1cc6e2e19982..167e8c14b143 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1593,6 +1593,7 @@ int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
return 0;
int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
gpa_t gpa, unsigned long len)