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304b93b1a0
Add ucall test support for LoongArch, ucall method on LoongArch uses undefined mmio area. It will cause vCPU exiting to hypervisor so that hypervisor can communicate with vCPU. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
20 lines
455 B
C
20 lines
455 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef SELFTEST_KVM_UCALL_H
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#define SELFTEST_KVM_UCALL_H
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#include "kvm_util.h"
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#define UCALL_EXIT_REASON KVM_EXIT_MMIO
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/*
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* ucall_exit_mmio_addr holds per-VM values (global data is duplicated by each
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* VM), it must not be accessed from host code.
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*/
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extern vm_vaddr_t *ucall_exit_mmio_addr;
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static inline void ucall_arch_do_ucall(vm_vaddr_t uc)
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{
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WRITE_ONCE(*ucall_exit_mmio_addr, uc);
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}
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#endif
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