1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 #ifndef SELFTEST_KVM_UCALL_H 3 #define SELFTEST_KVM_UCALL_H 4 5 #include "kvm_util.h" 6 7 #define UCALL_EXIT_REASON KVM_EXIT_MMIO 8 9 /* 10 * ucall_exit_mmio_addr holds per-VM values (global data is duplicated by each 11 * VM), it must not be accessed from host code. 12 */ 13 extern vm_vaddr_t *ucall_exit_mmio_addr; 14 15 static inline void ucall_arch_do_ucall(vm_vaddr_t uc) 16 { 17 WRITE_ONCE(*ucall_exit_mmio_addr, uc); 18 } 19 20 #endif 21