ucall.h

 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 */
13extern vm_vaddr_t *ucall_exit_mmio_addr;
14
15static inline void ucall_arch_do_ucall(vm_vaddr_t uc)
16{
17	WRITE_ONCE(*ucall_exit_mmio_addr, uc);
18}
19
20#endif