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
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