KVM: x86: introduce ISA specific SMM entry/exit callbacks

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Entering and exiting SMM may require ISA specific handling under certain
circumstances. This commit adds two new callbacks with empty implementations.
Actual functionality will be added in following commits.

* pre_enter_smm() is to be called when injecting an SMM, before any
  SMM related vcpu state has been changed
* pre_leave_smm() is to be called when emulating the RSM instruction,
  when the vcpu is in real mode and before any SMM related vcpu state
  has been restored

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

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This commit is contained in:

Ladi Prosek 2017-10-11 16:54:40 +02:00 • committed by Paolo Bonzini

parent d000653057

commit 0234bf8852

6 changed files with 58 additions and 1 deletions

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2

arch/x86/include/asm/kvm_emulate.h

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arch/x86/include/asm/kvm_host.h

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arch/x86/kvm/emulate.c

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arch/x86/kvm/svm.c

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arch/x86/kvm/vmx.c

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arch/x86/kvm/x86.c

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