/*
 * KVM ARM ABI constant definitions
 *
 * Copyright (c) 2013 Linaro Limited
 *
 * Provide versions of KVM constant defines that can be used even
 * when CONFIG_KVM is not set and we don't have access to the
 * KVM headers. If CONFIG_KVM is set, we do a compile-time check
 * that we haven't got out of sync somehow.
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */
#ifndef ARM_KVM_CONSTS_H
#define ARM_KVM_CONSTS_H

#ifdef CONFIG_KVM
#include "qemu/compiler.h"
#include <linux/kvm.h>

#define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(X != Y)

#else
#define MISMATCH_CHECK(X, Y)
#endif

#define CP_REG_SIZE_SHIFT 52
#define CP_REG_SIZE_MASK       0x00f0000000000000ULL
#define CP_REG_SIZE_U32        0x0020000000000000ULL
#define CP_REG_SIZE_U64        0x0030000000000000ULL
#define CP_REG_ARM             0x4000000000000000ULL

MISMATCH_CHECK(CP_REG_SIZE_SHIFT, KVM_REG_SIZE_SHIFT)
MISMATCH_CHECK(CP_REG_SIZE_MASK, KVM_REG_SIZE_MASK)
MISMATCH_CHECK(CP_REG_SIZE_U32, KVM_REG_SIZE_U32)
MISMATCH_CHECK(CP_REG_SIZE_U64, KVM_REG_SIZE_U64)
MISMATCH_CHECK(CP_REG_ARM, KVM_REG_ARM)

#define PSCI_FN_BASE 0x95c1ba5e
#define PSCI_FN(n) (PSCI_FN_BASE + (n))
#define PSCI_FN_CPU_SUSPEND PSCI_FN(0)
#define PSCI_FN_CPU_OFF PSCI_FN(1)
#define PSCI_FN_CPU_ON PSCI_FN(2)
#define PSCI_FN_MIGRATE PSCI_FN(3)

MISMATCH_CHECK(PSCI_FN_CPU_SUSPEND, KVM_PSCI_FN_CPU_SUSPEND)
MISMATCH_CHECK(PSCI_FN_CPU_OFF, KVM_PSCI_FN_CPU_OFF)
MISMATCH_CHECK(PSCI_FN_CPU_ON, KVM_PSCI_FN_CPU_ON)
MISMATCH_CHECK(PSCI_FN_MIGRATE, KVM_PSCI_FN_MIGRATE)

#define QEMU_KVM_ARM_TARGET_CORTEX_A15 0

/* There's no kernel define for this: sentinel value which
 * matches no KVM target value for either 64 or 32 bit
 */
#define QEMU_KVM_ARM_TARGET_NONE UINT_MAX

#ifndef TARGET_AARCH64
MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A15, KVM_ARM_TARGET_CORTEX_A15)
#endif

#undef MISMATCH_CHECK

#endif