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qemu-e2k/target-arm/kvm-consts.h
Ard Biesheuvel 3df53cdf56 target-arm: add missing PSCI constants needed for PSCI emulation 
This adds some PSCI function IDs and symbolic return codes that are needed
to implement PSCI emulation in TCG mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1412865028-17725-4-git-send-email-peter.maydell@linaro.org
2014-10-24 12:19:12 +01:00

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/*
* 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>
#include <linux/psci.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
#define CP_REG_ARCH_MASK 0xff00000000000000ULL
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)
MISMATCH_CHECK(CP_REG_ARCH_MASK, KVM_REG_ARCH_MASK)
#define QEMU_PSCI_0_1_FN_BASE 0x95c1ba5e
#define QEMU_PSCI_0_1_FN(n) (QEMU_PSCI_0_1_FN_BASE + (n))
#define QEMU_PSCI_0_1_FN_CPU_SUSPEND QEMU_PSCI_0_1_FN(0)
#define QEMU_PSCI_0_1_FN_CPU_OFF QEMU_PSCI_0_1_FN(1)
#define QEMU_PSCI_0_1_FN_CPU_ON QEMU_PSCI_0_1_FN(2)
#define QEMU_PSCI_0_1_FN_MIGRATE QEMU_PSCI_0_1_FN(3)
MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_SUSPEND, KVM_PSCI_FN_CPU_SUSPEND)
MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_OFF, KVM_PSCI_FN_CPU_OFF)
MISMATCH_CHECK(QEMU_PSCI_0_1_FN_CPU_ON, KVM_PSCI_FN_CPU_ON)
MISMATCH_CHECK(QEMU_PSCI_0_1_FN_MIGRATE, KVM_PSCI_FN_MIGRATE)
#define QEMU_PSCI_0_2_FN_BASE 0x84000000
#define QEMU_PSCI_0_2_FN(n) (QEMU_PSCI_0_2_FN_BASE + (n))
#define QEMU_PSCI_0_2_64BIT 0x40000000
#define QEMU_PSCI_0_2_FN64_BASE \
(QEMU_PSCI_0_2_FN_BASE + QEMU_PSCI_0_2_64BIT)
#define QEMU_PSCI_0_2_FN64(n) (QEMU_PSCI_0_2_FN64_BASE + (n))
#define QEMU_PSCI_0_2_FN_PSCI_VERSION QEMU_PSCI_0_2_FN(0)
#define QEMU_PSCI_0_2_FN_CPU_SUSPEND QEMU_PSCI_0_2_FN(1)
#define QEMU_PSCI_0_2_FN_CPU_OFF QEMU_PSCI_0_2_FN(2)
#define QEMU_PSCI_0_2_FN_CPU_ON QEMU_PSCI_0_2_FN(3)
#define QEMU_PSCI_0_2_FN_AFFINITY_INFO QEMU_PSCI_0_2_FN(4)
#define QEMU_PSCI_0_2_FN_MIGRATE QEMU_PSCI_0_2_FN(5)
#define QEMU_PSCI_0_2_FN_MIGRATE_INFO_TYPE QEMU_PSCI_0_2_FN(6)
#define QEMU_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU QEMU_PSCI_0_2_FN(7)
#define QEMU_PSCI_0_2_FN_SYSTEM_OFF QEMU_PSCI_0_2_FN(8)
#define QEMU_PSCI_0_2_FN_SYSTEM_RESET QEMU_PSCI_0_2_FN(9)
#define QEMU_PSCI_0_2_FN64_CPU_SUSPEND QEMU_PSCI_0_2_FN64(1)
#define QEMU_PSCI_0_2_FN64_CPU_OFF QEMU_PSCI_0_2_FN64(2)
#define QEMU_PSCI_0_2_FN64_CPU_ON QEMU_PSCI_0_2_FN64(3)
#define QEMU_PSCI_0_2_FN64_AFFINITY_INFO QEMU_PSCI_0_2_FN64(4)
#define QEMU_PSCI_0_2_FN64_MIGRATE QEMU_PSCI_0_2_FN64(5)
MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_SUSPEND, PSCI_0_2_FN_CPU_SUSPEND)
MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_OFF, PSCI_0_2_FN_CPU_OFF)
MISMATCH_CHECK(QEMU_PSCI_0_2_FN_CPU_ON, PSCI_0_2_FN_CPU_ON)
MISMATCH_CHECK(QEMU_PSCI_0_2_FN_MIGRATE, PSCI_0_2_FN_MIGRATE)
MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_SUSPEND, PSCI_0_2_FN64_CPU_SUSPEND)
MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_CPU_ON, PSCI_0_2_FN64_CPU_ON)
MISMATCH_CHECK(QEMU_PSCI_0_2_FN64_MIGRATE, PSCI_0_2_FN64_MIGRATE)
/* PSCI v0.2 return values used by TCG emulation of PSCI */
/* No Trusted OS migration to worry about when offlining CPUs */
#define QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED 2
/* We implement version 0.2 only */
#define QEMU_PSCI_0_2_RET_VERSION_0_2 2
MISMATCH_CHECK(QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED, PSCI_0_2_TOS_MP)
MISMATCH_CHECK(QEMU_PSCI_0_2_RET_VERSION_0_2,
(PSCI_VERSION_MAJOR(0) | PSCI_VERSION_MINOR(2)))
/* PSCI return values (inclusive of all PSCI versions) */
#define QEMU_PSCI_RET_SUCCESS 0
#define QEMU_PSCI_RET_NOT_SUPPORTED -1
#define QEMU_PSCI_RET_INVALID_PARAMS -2
#define QEMU_PSCI_RET_DENIED -3
#define QEMU_PSCI_RET_ALREADY_ON -4
#define QEMU_PSCI_RET_ON_PENDING -5
#define QEMU_PSCI_RET_INTERNAL_FAILURE -6
#define QEMU_PSCI_RET_NOT_PRESENT -7
#define QEMU_PSCI_RET_DISABLED -8
MISMATCH_CHECK(QEMU_PSCI_RET_SUCCESS, PSCI_RET_SUCCESS)
MISMATCH_CHECK(QEMU_PSCI_RET_NOT_SUPPORTED, PSCI_RET_NOT_SUPPORTED)
MISMATCH_CHECK(QEMU_PSCI_RET_INVALID_PARAMS, PSCI_RET_INVALID_PARAMS)
MISMATCH_CHECK(QEMU_PSCI_RET_DENIED, PSCI_RET_DENIED)
MISMATCH_CHECK(QEMU_PSCI_RET_ALREADY_ON, PSCI_RET_ALREADY_ON)
MISMATCH_CHECK(QEMU_PSCI_RET_ON_PENDING, PSCI_RET_ON_PENDING)
MISMATCH_CHECK(QEMU_PSCI_RET_INTERNAL_FAILURE, PSCI_RET_INTERNAL_FAILURE)
MISMATCH_CHECK(QEMU_PSCI_RET_NOT_PRESENT, PSCI_RET_NOT_PRESENT)
MISMATCH_CHECK(QEMU_PSCI_RET_DISABLED, PSCI_RET_DISABLED)
/* Note that KVM uses overlapping values for AArch32 and AArch64
* target CPU numbers. AArch32 targets:
*/
#define QEMU_KVM_ARM_TARGET_CORTEX_A15 0
#define QEMU_KVM_ARM_TARGET_CORTEX_A7 1
/* AArch64 targets: */
#define QEMU_KVM_ARM_TARGET_AEM_V8 0
#define QEMU_KVM_ARM_TARGET_FOUNDATION_V8 1
#define QEMU_KVM_ARM_TARGET_CORTEX_A57 2
/* 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
#ifdef TARGET_AARCH64
MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_AEM_V8, KVM_ARM_TARGET_AEM_V8)
MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_FOUNDATION_V8, KVM_ARM_TARGET_FOUNDATION_V8)
MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A57, KVM_ARM_TARGET_CORTEX_A57)
#else
MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A15, KVM_ARM_TARGET_CORTEX_A15)
MISMATCH_CHECK(QEMU_KVM_ARM_TARGET_CORTEX_A7, KVM_ARM_TARGET_CORTEX_A7)
#endif
#define CP_REG_ARM64 0x6000000000000000ULL
#define CP_REG_ARM_COPROC_MASK 0x000000000FFF0000
#define CP_REG_ARM_COPROC_SHIFT 16
#define CP_REG_ARM64_SYSREG (0x0013 << CP_REG_ARM_COPROC_SHIFT)
#define CP_REG_ARM64_SYSREG_OP0_MASK 0x000000000000c000
#define CP_REG_ARM64_SYSREG_OP0_SHIFT 14
#define CP_REG_ARM64_SYSREG_OP1_MASK 0x0000000000003800
#define CP_REG_ARM64_SYSREG_OP1_SHIFT 11
#define CP_REG_ARM64_SYSREG_CRN_MASK 0x0000000000000780
#define CP_REG_ARM64_SYSREG_CRN_SHIFT 7
#define CP_REG_ARM64_SYSREG_CRM_MASK 0x0000000000000078
#define CP_REG_ARM64_SYSREG_CRM_SHIFT 3
#define CP_REG_ARM64_SYSREG_OP2_MASK 0x0000000000000007
#define CP_REG_ARM64_SYSREG_OP2_SHIFT 0
/* No kernel define but it's useful to QEMU */
#define CP_REG_ARM64_SYSREG_CP (CP_REG_ARM64_SYSREG >> CP_REG_ARM_COPROC_SHIFT)
#ifdef TARGET_AARCH64
MISMATCH_CHECK(CP_REG_ARM64, KVM_REG_ARM64)
MISMATCH_CHECK(CP_REG_ARM_COPROC_MASK, KVM_REG_ARM_COPROC_MASK)
MISMATCH_CHECK(CP_REG_ARM_COPROC_SHIFT, KVM_REG_ARM_COPROC_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG, KVM_REG_ARM64_SYSREG)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_MASK, KVM_REG_ARM64_SYSREG_OP0_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP0_SHIFT, KVM_REG_ARM64_SYSREG_OP0_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_MASK, KVM_REG_ARM64_SYSREG_OP1_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP1_SHIFT, KVM_REG_ARM64_SYSREG_OP1_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_MASK, KVM_REG_ARM64_SYSREG_CRN_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRN_SHIFT, KVM_REG_ARM64_SYSREG_CRN_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_MASK, KVM_REG_ARM64_SYSREG_CRM_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_CRM_SHIFT, KVM_REG_ARM64_SYSREG_CRM_SHIFT)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_MASK, KVM_REG_ARM64_SYSREG_OP2_MASK)
MISMATCH_CHECK(CP_REG_ARM64_SYSREG_OP2_SHIFT, KVM_REG_ARM64_SYSREG_OP2_SHIFT)
#endif
#undef MISMATCH_CHECK
#endif
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