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2020-05-07KVM: nSVM: trap #DB and #BP to userspace if guest debugging is onPaolo Bonzini1-0/+8
Signed-off-by: Paolo Bonzini <[email protected]>
2020-04-24KVM: SVM: do not allow VMRUN inside SMMPaolo Bonzini1-1/+5
VMRUN is not supported inside the SMM handler and the behavior is undefined. Just raise a #UD. Signed-off-by: Paolo Bonzini <[email protected]>
2020-04-23KVM: x86: move nested-related kvm_x86_ops to a separate structPaolo Bonzini1-1/+5
Clean up some of the patching of kvm_x86_ops, by moving kvm_x86_ops related to nested virtualization into a separate struct. As a result, these ops will always be non-NULL on VMX. This is not a problem: * check_nested_events is only called if is_guest_mode(vcpu) returns true * get_nested_state treats VMXOFF state the same as nested being disabled * set_nested_state fails if you attempt to set nested state while nesting is disabled * nested_enable_evmcs could already be called on a CPU without VMX enabled in CPUID. * nested_get_evmcs_version was fixed in the previous patch Signed-off-by: Paolo Bonzini <[email protected]>
2020-04-21KVM: nSVM: Check for CR0.CD and CR0.NW on VMRUN of nested guestsKrish Sadhukhan1-0/+4
According to section "Canonicalization and Consistency Checks" in APM vol. 2, the following guest state combination is illegal: "CR0.CD is zero and CR0.NW is set" Signed-off-by: Krish Sadhukhan <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-04-21KVM: x86: Drop @invalidate_gpa param from kvm_x86_ops' tlb_flush()Sean Christopherson1-1/+1
Drop @invalidate_gpa from ->tlb_flush() and kvm_vcpu_flush_tlb() now that all callers pass %true for said param, or ignore the param (SVM has an internal call to svm_flush_tlb() in svm_flush_tlb_guest that somewhat arbitrarily passes %false). Remove __vmx_flush_tlb() as it is no longer used. No functional change intended. Signed-off-by: Sean Christopherson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-04-03KVM: SVM: Move Nested SVM Implementation to nested.cJoerg Roedel1-0/+823
Split out the code for the nested SVM implementation and move it to a separate file. Signed-off-by: Joerg Roedel <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
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