eeadf9e755
When L2 tries to modify CR0 or CR4 (with mov or clts), and modifies a bit which L1 asked to shadow (via CR[04]_GUEST_HOST_MASK), we already do the right thing: we let L1 handle the trap (see nested_vmx_exit_handled_cr() in a previous patch). When L2 modifies bits that L1 doesn't care about, we let it think (via CR[04]_READ_SHADOW) that it did these modifications, while only changing (in GUEST_CR[04]) the bits that L0 doesn't shadow. This is needed for corect handling of CR0.TS for lazy FPU loading: L0 may want to leave TS on, while pretending to allow the guest to change it. Signed-off-by: Nadav Har'El <nyh@il.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> |
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.. | ||
emulate.c | ||
i8254.c | ||
i8254.h | ||
i8259.c | ||
irq.c | ||
irq.h | ||
Kconfig | ||
kvm_cache_regs.h | ||
kvm_timer.h | ||
lapic.c | ||
lapic.h | ||
Makefile | ||
mmu.c | ||
mmu.h | ||
mmu_audit.c | ||
mmutrace.h | ||
paging_tmpl.h | ||
svm.c | ||
timer.c | ||
trace.h | ||
tss.h | ||
vmx.c | ||
x86.c | ||
x86.h |