Commit 80a1684c authored Jun 03, 2020 by Jim Mattson Committed by Paolo Bonzini Jul 08, 2020

kvm: vmx: Add last_cpu to struct vcpu_vmx



As we already do in svm, record the last logical processor on which a
vCPU has run, so that it can be communicated to userspace for
potential hardware errors.

Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Message-Id: <20200603235623.245638-4-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 24263634

arch/x86/kvm/vmx/vmx.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -6734,6 +6734,7 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu)
		if (vcpu->arch.cr2 != read_cr2())
		write_cr2(vcpu->arch.cr2);

		vmx->last_cpu = vcpu->cpu;
		vmx->fail = __vmx_vcpu_run(vmx, (unsigned long *)&vcpu->arch.regs,
		vmx->loaded_vmcs->launched);

arch/x86/kvm/vmx/vmx.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -300,6 +300,9 @@ struct vcpu_vmx {
		u64 ept_pointer;

		struct pt_desc pt_desc;

		/* which host CPU was used for running this vcpu */
		unsigned int last_cpu;
		};

		enum ept_pointers_status {