if (IS_ENABLED(CONFIG_KVM_INTEL)) {Is there an asm-offsets-like solution that doesn't require exposing vcpu_vmx
BLANK();
+ OFFSET(VMX_vcpu_arch_regs, vcpu_vmx, vcpu.arch.regs);
outside of KVM? We (Google) want to explore loading multiple instances of KVM,
i.e. loading multiple versions of kvm.ko at the same time, to allow intra-host
migration between versions of KVM to upgrade/rollback KVM without changing the
kernel (RFC coming soon-ish). IIRC, asm-offsets is the only place where I haven't
been able to figure out a simple way to avoid exposing KVM's internal structures
outside of KVM (so that the structures can change across KVM instances without
breaking kernel code).