A processor comprising: a range register to store information that identifies a reserved range of a memory associated with a secure arbitration mode, SEAM, of the processor; and a processor core coupled to the range register, wherein the processor core comprises a security logic to unlock the range register on a logical processor, of the processor core, that is to initiate the SEAM; and wherein the logical processor, via execution of the security logic, is characterized to: store, in the reserved range of the memory identified by the information stored in the range register, a SEAM module and a manifest associated with the SEAM module, wherein the SEAM module is to support execution of one or more trust domains; initialize a SEAM virtual machine control structure, VMCS, within the reserved range of the memory, the SEAM VMCS to control state transitions between a virtual machine monitor, VMM and the SEAM module; and authenticate the SEAM module using a manifest signature of the manifest; the processor, further comprising a plurality of measurement registers and a security virtual number, SVN register, wherein the security logic is further to: record, into the plurality of measurement registers, a measurement, an identity, and a SVN value of the SEAM module; and verify the SVN value against a previously recorded SVN value stored in the SVN register; wherein the manifest comprises a combination of at least two of: a manifest signers public key; a first digest of the manifest signers public key, wherein the first digest is the identity of the SEAM module that is recorded; a second digest of the SEAM module and associated loadable components; or attributes of the SEAM module; and wherein, to record the measurement of the SEAM module, the security logic is further to: generate a third digest of a combination of: (i) the SEAM module and associated loadable components; and (ii) the manifest signature; and record, in at least one of the plurality of measurement registers, the third digest as the measurement of the SEAM module. a range register to store information that identifies a reserved range of a memory associated with a secure arbitration mode, SEAM, of the processor; and a processor core coupled to the range register, wherein the processor core comprises a security logic to unlock the range register on a logical processor, of the processor core, that is to initiate the SEAM; and wherein the logical processor, via execution of the security logic, is characterized to: store, in the reserved range of the memory identified by the information stored in the range register, a SEAM module and a manifest associated with the SEAM module, wherein the SEAM module is to support execution of one or more trust domains; initialize a SEAM virtual machine control structure, VMCS, within the reserved range of the memory, the SEAM VMCS to control state transitions between a virtual machine monitor, VMM and the SEAM module; and authenticate the SEAM module using a manifest signature of the manifest; store, in the reserved range of the memory identified by the information stored in the range register, a SEAM module and a manifest associated with the SEAM module, wherein the SEAM module is to support execution of one or more trust domains; initialize a SEAM virtual machine control structure, VMCS, within the reserved range of the memory, the SEAM VMCS to control state transitions between a virtual machine monitor, VMM and the SEAM module; and authenticate the SEAM module using a manifest signature of the manifest; the processor, further comprising a plurality of measurement registers and a security virtual number, SVN register, wherein the security logic is further to: record, into the plurality of measurement registers, a measurement, an identity, and a SVN value of the SEAM module; and verify the SVN value against a previously recorded SVN value stored in the SVN register; record, into the plurality of measurement registers, a measurement, an identity, and a SVN value of the SEAM module; and verify the SVN value against a previously recorded SVN value stored in the SVN register; wherein the manifest comprises a combination of at least two of: a manifest signers public key; a first digest of the manifest signers public key, wherein the first digest is the identity of the SEAM module that is recorded; a second digest of the SEAM module and associated loadable components; or attributes of the SEAM module; and wherein, to record the measurement of the SEAM module, the security logic is further to: generate a third digest of a combination of: (i) the SEAM module and associated loadable components; and (ii) the manifest signature; and record, in at least one of the plurality of measurement registers, the third digest as the measurement of the SEAM module. a manifest signers public key; a first digest of the manifest signers public key, wherein the first digest is the identity of the SEAM module that is recorded; a second digest of the SEAM module and associated loadable components; or attributes of the SEAM module; and wherein, to record the measurement of the SEAM module, the security logic is further to: generate a third digest of a combination of: (i) the SEAM module and associated loadable components; and (ii) the manifest signature; and record, in at least one of the plurality of measurement registers, the third digest as the measurement of the SEAM module. generate a third digest of a combination of: (i) the SEAM module and associated loadable components; and (ii) the manifest signature; and record, in at least one of the plurality of measurement registers, the third digest as the measurement of the SEAM module.