forked from Imagelibrary/seL4
b86bce2d4b
This ensures that no frames can be mapped that would overwrite the currently stored VMID for the vspace. Signed-off-by: Kent McLeod <kent@kry10.com>
288 lines
7.7 KiB
C
288 lines
7.7 KiB
C
/*
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* Copyright 2020, Data61, CSIRO (ABN 41 687 119 230)
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#ifdef HAVE_AUTOCONF
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#include <autoconf.h>
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#endif
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#ifndef __ASSEMBLER__
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/* format of an unknown syscall message */
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typedef enum {
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seL4_UnknownSyscall_X0,
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seL4_UnknownSyscall_X1,
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seL4_UnknownSyscall_X2,
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seL4_UnknownSyscall_X3,
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seL4_UnknownSyscall_X4,
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seL4_UnknownSyscall_X5,
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seL4_UnknownSyscall_X6,
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seL4_UnknownSyscall_X7,
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seL4_UnknownSyscall_FaultIP,
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seL4_UnknownSyscall_SP,
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seL4_UnknownSyscall_LR,
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seL4_UnknownSyscall_SPSR,
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seL4_UnknownSyscall_Syscall,
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/* length of an unknown syscall message */
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seL4_UnknownSyscall_Length,
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SEL4_FORCE_LONG_ENUM(seL4_UnknownSyscall_Msg),
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} seL4_UnknownSyscall_Msg;
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/* format of a user exception message */
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typedef enum {
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seL4_UserException_FaultIP,
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seL4_UserException_SP,
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seL4_UserException_SPSR,
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seL4_UserException_Number,
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seL4_UserException_Code,
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/* length of a user exception */
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seL4_UserException_Length,
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SEL4_FORCE_LONG_ENUM(seL4_UserException_Msg),
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} seL4_UserException_Msg;
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/* format of a vm fault message */
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typedef enum {
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seL4_VMFault_IP,
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seL4_VMFault_Addr,
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seL4_VMFault_PrefetchFault,
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seL4_VMFault_FSR,
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seL4_VMFault_Length,
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SEL4_FORCE_LONG_ENUM(seL4_VMFault_Msg),
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} seL4_VMFault_Msg;
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#ifdef CONFIG_ARM_HYPERVISOR_SUPPORT
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typedef enum {
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seL4_VGICMaintenance_IDX,
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seL4_VGICMaintenance_Length,
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SEL4_FORCE_LONG_ENUM(seL4_VGICMaintenance_Msg),
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} seL4_VGICMaintenance_Msg;
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typedef enum {
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seL4_VPPIEvent_IRQ,
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SEL4_FORCE_LONG_ENUM(seL4_VPPIEvent_Msg),
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} seL4_VPPIEvent_Msg;
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typedef enum {
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seL4_VCPUFault_HSR,
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seL4_VCPUFault_Length,
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SEL4_FORCE_LONG_ENUM(seL4_VCPUFault_Msg),
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} seL4_VCPUFault_Msg;
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typedef enum {
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/* VM control registers EL1 */
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seL4_VCPUReg_SCTLR = 0,
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seL4_VCPUReg_TTBR0,
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seL4_VCPUReg_TTBR1,
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seL4_VCPUReg_TCR,
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seL4_VCPUReg_MAIR,
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seL4_VCPUReg_AMAIR,
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seL4_VCPUReg_CIDR,
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/* other system registers EL1 */
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seL4_VCPUReg_ACTLR,
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seL4_VCPUReg_CPACR,
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/* exception handling registers EL1 */
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seL4_VCPUReg_AFSR0,
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seL4_VCPUReg_AFSR1,
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seL4_VCPUReg_ESR,
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seL4_VCPUReg_FAR,
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seL4_VCPUReg_ISR,
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seL4_VCPUReg_VBAR,
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/* thread pointer/ID registers EL0/EL1 */
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seL4_VCPUReg_TPIDR_EL1,
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#if CONFIG_MAX_NUM_NODES > 1
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/* Virtualisation Multiprocessor ID Register */
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seL4_VCPUReg_VMPIDR_EL2,
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#endif /* CONFIG_MAX_NUM_NODES > 1 */
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/* general registers x0 to x30 have been saved by traps.S */
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seL4_VCPUReg_SP_EL1,
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seL4_VCPUReg_ELR_EL1,
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seL4_VCPUReg_SPSR_EL1, // 32-bit
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/* generic timer registers, to be completed */
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seL4_VCPUReg_CNTV_CTL,
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seL4_VCPUReg_CNTV_CVAL,
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seL4_VCPUReg_CNTVOFF,
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seL4_VCPUReg_CNTKCTL_EL1,
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seL4_VCPUReg_Num,
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} seL4_VCPUReg;
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#endif /* CONFIG_ARM_HYPERVISOR_SUPPORT */
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#ifdef CONFIG_KERNEL_MCS
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typedef enum {
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seL4_TimeoutReply_FaultIP,
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seL4_TimeoutReply_SP,
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seL4_TimeoutReply_SPSR_EL1,
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seL4_TimeoutReply_X0,
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seL4_TimeoutReply_X1,
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seL4_TimeoutReply_X2,
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seL4_TimeoutReply_X3,
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seL4_TimeoutReply_X4,
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seL4_TimeoutReply_X5,
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seL4_TimeoutReply_X6,
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seL4_TimeoutReply_X7,
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seL4_TimeoutReply_X8,
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seL4_TimeoutReply_X16,
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seL4_TimeoutReply_X17,
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seL4_TimeoutReply_X18,
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seL4_TimeoutReply_X29,
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seL4_TimeoutReply_X30,
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seL4_TimeoutReply_X9,
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seL4_TimeoutReply_X10,
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seL4_TimeoutReply_X11,
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seL4_TimeoutReply_X12,
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seL4_TimeoutReply_X13,
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seL4_TimeoutReply_X14,
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seL4_TimeoutReply_X15,
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seL4_TimeoutReply_X19,
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seL4_TimeoutReply_X20,
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seL4_TimeoutReply_X21,
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seL4_TimeoutReply_X22,
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seL4_TimeoutReply_X23,
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seL4_TimeoutReply_X24,
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seL4_TimeoutReply_X25,
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seL4_TimeoutReply_X26,
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seL4_TimeoutReply_X27,
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seL4_TimeoutReply_X28,
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seL4_TimeoutReply_Length,
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SEL4_FORCE_LONG_ENUM(seL4_TimeoutReply_Msg)
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} seL4_TimeoutReply_Msg;
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typedef enum {
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seL4_Timeout_Data,
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seL4_Timeout_Consumed,
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seL4_Timeout_Length,
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SEL4_FORCE_LONG_ENUM(seL4_Timeout_Msg)
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} seL4_TimeoutMsg;
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#endif
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#endif /* !__ASSEMBLER__ */
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#define seL4_DataFault 0
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#define seL4_InstructionFault 1
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/* object sizes - 2^n */
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#define seL4_PageBits 12
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#define seL4_LargePageBits 21
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#define seL4_HugePageBits 30
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#define seL4_SlotBits 5
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#define seL4_TCBBits 11
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#define seL4_EndpointBits 4
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#ifdef CONFIG_KERNEL_MCS
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#define seL4_NotificationBits 6
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#define seL4_ReplyBits 5
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#else
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#define seL4_NotificationBits 5
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#endif
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#define seL4_PageTableBits 12
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#define seL4_PageTableEntryBits 3
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#define seL4_PageTableIndexBits 9
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#define seL4_PageDirBits 12
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#define seL4_PageDirEntryBits 3
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#define seL4_PageDirIndexBits 9
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#define seL4_NumASIDPoolsBits 7
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#define seL4_ASIDPoolBits 12
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#define seL4_ASIDPoolIndexBits 9
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#define seL4_IOPageTableBits 12
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#define seL4_WordSizeBits 3
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#define seL4_PUDEntryBits 3
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#if defined(CONFIG_ARM_HYPERVISOR_SUPPORT) && defined (CONFIG_ARM_PA_SIZE_BITS_40)
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/* for a 3 level translation, we skip the PGD */
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#define seL4_PGDBits 0
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#define seL4_PGDEntryBits 0
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#define seL4_PGDIndexBits 0
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#define seL4_PUDBits 13
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#define seL4_PUDIndexBits 10
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#define seL4_VSpaceBits seL4_PUDBits
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#define seL4_VSpaceIndexBits seL4_PUDIndexBits
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#define seL4_ARM_VSpaceObject seL4_ARM_PageUpperDirectoryObject
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#else
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#define seL4_PGDBits 12
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#define seL4_PGDEntryBits 3
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#define seL4_PGDIndexBits 9
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#define seL4_PUDBits 12
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#define seL4_PUDIndexBits 9
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#define seL4_VSpaceBits seL4_PGDBits
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#define seL4_VSpaceIndexBits seL4_PGDIndexBits
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#define seL4_ARM_VSpaceObject seL4_ARM_PageGlobalDirectoryObject
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#endif
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#define seL4_ARM_VCPUBits 12
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#define seL4_VCPUBits 12
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/* word size */
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#define seL4_WordBits (sizeof(seL4_Word) * 8)
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/* Untyped size limits */
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#define seL4_MinUntypedBits 4
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#define seL4_MaxUntypedBits 47
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#ifndef __ASSEMBLER__
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SEL4_SIZE_SANITY(seL4_PageTableEntryBits, seL4_PageTableIndexBits, seL4_PageTableBits);
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SEL4_SIZE_SANITY(seL4_PageDirEntryBits, seL4_PageDirIndexBits, seL4_PageDirBits);
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SEL4_SIZE_SANITY(seL4_WordSizeBits, seL4_ASIDPoolIndexBits, seL4_ASIDPoolBits);
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SEL4_SIZE_SANITY(seL4_PGDEntryBits, seL4_PGDIndexBits, seL4_PGDBits);
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SEL4_SIZE_SANITY(seL4_PUDEntryBits, seL4_PUDIndexBits, seL4_PUDBits);
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#endif
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#ifdef CONFIG_ENABLE_BENCHMARKS
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/* size of kernel log buffer in bytes */
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#define seL4_LogBufferSize (LIBSEL4_BIT(20))
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#endif /* CONFIG_ENABLE_BENCHMARKS */
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#ifdef CONFIG_HARDWARE_DEBUG_API
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#define seL4_FirstBreakpoint (0)
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#define seL4_FirstDualFunctionMonitor (-1)
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#define seL4_NumDualFunctionMonitors (0)
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#endif
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#define seL4_FastMessageRegisters 4
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/* IPC buffer is 1024 bytes, giving size bits of 10 */
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#define seL4_IPCBufferSizeBits 10
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#ifdef CONFIG_ARM_HYPERVISOR_SUPPORT
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/* 1 slot at the end of the vspace is used to hold the VMID assigned to the vspace */
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#define seL4_VSpaceReservedSlots 1
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/* The userspace occupies the range 0x0 to 0xfffffffffff.
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* The stage-1 translation is disabled, and the stage-2
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* translation input addree size is constrained by the
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* ID_AA64MMFR0_EL1.PARange which is 44 bits on TX1.
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* Anything address above the range above triggers an
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* address size fault.
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*/
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/* First address in the virtual address space that is not accessible to user level */
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#if defined(CONFIG_ARM_PA_SIZE_BITS_44)
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#define seL4_UserTop 0x00000fffffffffff
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#elif defined(CONFIG_ARM_PA_SIZE_BITS_40)
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/* Currently other definitions of seL4_UserTop already have free slots at the end and don't need to subtract for seL4_VSpaceReservedSlots.
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* Each slot used requires subtracting 1GiB from the top address.
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*/
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#define seL4_UserTop (0x000000ffffffffff - seL4_VSpaceReservedSlots * 0x40000000)
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#else
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#error "Unknown physical address width"
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#endif
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#else
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/* First address in the virtual address space that is not accessible to user level */
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#define seL4_UserTop 0x00007fffffffffff
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#endif
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