x86/reboot: KVM: Disable SVM during reboot via virt/KVM reboot callback

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Use the virt callback to disable SVM (and set GIF=1) during an emergency
instead of blindly attempting to disable SVM.  Like the VMX case, if a
hypervisor, i.e. KVM, isn't loaded/active, SVM can't be in use.

Acked-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20230721201859.2307736-5-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Sean Christopherson 2023-07-21 13:18:44 -07:00

parent 119b5cb4ff

commit baeb4de7ad

3 changed files with 17 additions and 13 deletions

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8

arch/x86/include/asm/virtext.h

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3

arch/x86/kernel/reboot.c

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19

arch/x86/kvm/svm/svm.c

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