KVM: vmx, svm: clean up mass updates to regs_avail/regs_dirty bits

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Document the meaning of the three combinations of regs_avail and
regs_dirty.  Update regs_dirty just after writeback instead of
doing it later after vmexit.  After vmexit, instead, we clear the
regs_avail bits corresponding to lazily-loaded registers.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2021-11-26 07:00:15 -05:00

parent c62c7bd4f9

commit 41e68b6964

6 changed files with 43 additions and 16 deletions

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7

arch/x86/kvm/kvm_cache_regs.h

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arch/x86/kvm/svm/svm.c

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arch/x86/kvm/svm/svm.h

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arch/x86/kvm/vmx/nested.c

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arch/x86/kvm/vmx/vmx.c

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arch/x86/kvm/vmx/vmx.h

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