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/*
 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifndef __ARM_KVM_ARM_H__
#define __ARM_KVM_ARM_H__

#include <linux/const.h>
#include <linux/types.h>

/* Hyp Configuration Register (HCR) bits */
#define HCR_TGE		(1 << 27)
#define HCR_TVM		(1 << 26)
#define HCR_TTLB	(1 << 25)
#define HCR_TPU		(1 << 24)
#define HCR_TPC		(1 << 23)
#define HCR_TSW		(1 << 22)
#define HCR_TAC		(1 << 21)
#define HCR_TIDCP	(1 << 20)
#define HCR_TSC		(1 << 19)
#define HCR_TID3	(1 << 18)
#define HCR_TID2	(1 << 17)
#define HCR_TID1	(1 << 16)
#define HCR_TID0	(1 << 15)
#define HCR_TWE		(1 << 14)
#define HCR_TWI		(1 << 13)
#define HCR_DC		(1 << 12)
#define HCR_BSU		(3 << 10)
#define HCR_BSU_IS	(1 << 10)
#define HCR_FB		(1 << 9)
#define HCR_VA		(1 << 8)
#define HCR_VI		(1 << 7)
#define HCR_VF		(1 << 6)
#define HCR_AMO		(1 << 5)
#define HCR_IMO		(1 << 4)
#define HCR_FMO		(1 << 3)
#define HCR_PTW		(1 << 2)
#define HCR_SWIO	(1 << 1)
#define HCR_VM		1

/*
 * The bits we set in HCR:
 * TAC:		Trap ACTLR
 * TSC:		Trap SMC
 * TVM:		Trap VM ops (until MMU and caches are on)
 * TSW:		Trap cache operations by set/way
 * TWI:		Trap WFI
 * TWE:		Trap WFE
 * TIDCP:	Trap L2CTLR/L2ECTLR
 * BSU_IS:	Upgrade barriers to the inner shareable domain
 * FB:		Force broadcast of all maintainance operations
 * AMO:		Override CPSR.A and enable signaling with VA
 * IMO:		Override CPSR.I and enable signaling with VI
 * FMO:		Override CPSR.F and enable signaling with VF
 * SWIO:	Turn set/way invalidates into set/way clean+invalidate
 */
#define HCR_GUEST_MASK (HCR_TSC | HCR_TSW | HCR_TWI | HCR_VM | HCR_BSU_IS | \
			HCR_FB | HCR_TAC | HCR_AMO | HCR_IMO | HCR_FMO | \
			HCR_TVM | HCR_TWE | HCR_SWIO | HCR_TIDCP)

/* System Control Register (SCTLR) bits */
#define SCTLR_TE	(1 << 30)
#define SCTLR_EE	(1 << 25)
#define SCTLR_V		(1 << 13)

/* Hyp System Control Register (HSCTLR) bits */
#define HSCTLR_TE	(1 << 30)
#define HSCTLR_EE	(1 << 25)
#define HSCTLR_FI	(1 << 21)
#define HSCTLR_WXN	(1 << 19)
#define HSCTLR_I	(1 << 12)
#define HSCTLR_C	(1 << 2)
#define HSCTLR_A	(1 << 1)
#define HSCTLR_M	1
#define HSCTLR_MASK	(HSCTLR_M | HSCTLR_A | HSCTLR_C | HSCTLR_I | \
			 HSCTLR_WXN | HSCTLR_FI | HSCTLR_EE | HSCTLR_TE)

/* TTBCR and HTCR Registers bits */
#define TTBCR_EAE	(1 << 31)
#define TTBCR_IMP	(1 << 30)
#define TTBCR_SH1	(3 << 28)
#define TTBCR_ORGN1	(3 << 26)
#define TTBCR_IRGN1	(3 << 24)
#define TTBCR_EPD1	(1 << 23)
#define TTBCR_A1	(1 << 22)
#define TTBCR_T1SZ	(7 << 16)
#define TTBCR_SH0	(3 << 12)
#define TTBCR_ORGN0	(3 << 10)
#define TTBCR_IRGN0	(3 << 8)
#define TTBCR_EPD0	(1 << 7)
#define TTBCR_T0SZ	(7 << 0)
#define HTCR_MASK	(TTBCR_T0SZ | TTBCR_IRGN0 | TTBCR_ORGN0 | TTBCR_SH0)

/* Hyp System Trap Register */
#define HSTR_T(x)	(1 << x)
#define HSTR_TTEE	(1 << 16)
#define HSTR_TJDBX	(1 << 17)

/* Hyp Coprocessor Trap Register */
#define HCPTR_TCP(x)	(1 << x)
#define HCPTR_TCP_MASK	(0x3fff)
#define HCPTR_TASE	(1 << 15)
#define HCPTR_TTA	(1 << 20)
#define HCPTR_TCPAC	(1 << 31)

/* Hyp Debug Configuration Register bits */
#define HDCR_TDRA	(1 << 11)
#define HDCR_TDOSA	(1 << 10)
#define HDCR_TDA	(1 << 9)
#define HDCR_TDE	(1 << 8)
#define HDCR_HPME	(1 << 7)
#define HDCR_TPM	(1 << 6)
#define HDCR_TPMCR	(1 << 5)
#define HDCR_HPMN_MASK	(0x1F)

/*
 * The architecture supports 40-bit IPA as input to the 2nd stage translations
 * and PTRS_PER_S2_PGD becomes 1024, because each entry covers 1GB of address
 * space.
 */
#define KVM_PHYS_SHIFT	(40)
#define KVM_PHYS_SIZE	(_AC(1, ULL) << KVM_PHYS_SHIFT)
#define KVM_PHYS_MASK	(KVM_PHYS_SIZE - _AC(1, ULL))
#define PTRS_PER_S2_PGD	(_AC(1, ULL) << (KVM_PHYS_SHIFT - 30))

/* Virtualization Translation Control Register (VTCR) bits */
#define VTCR_SH0	(3 << 12)
#define VTCR_ORGN0	(3 << 10)
#define VTCR_IRGN0	(3 << 8)
#define VTCR_SL0	(3 << 6)
#define VTCR_S		(1 << 4)
#define VTCR_T0SZ	(0xf)
#define VTCR_MASK	(VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0 | VTCR_SL0 | \
			 VTCR_S | VTCR_T0SZ)
#define VTCR_HTCR_SH	(VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0)
#define VTCR_SL_L2	(0 << 6)	/* Starting-level: 2 */
#define VTCR_SL_L1	(1 << 6)	/* Starting-level: 1 */
#define KVM_VTCR_SL0	VTCR_SL_L1
/* stage-2 input address range defined as 2^(32-T0SZ) */
#define KVM_T0SZ	(32 - KVM_PHYS_SHIFT)
#define KVM_VTCR_T0SZ	(KVM_T0SZ & VTCR_T0SZ)
#define KVM_VTCR_S	((KVM_VTCR_T0SZ << 1) & VTCR_S)

/* Virtualization Translation Table Base Register (VTTBR) bits */
#if KVM_VTCR_SL0 == VTCR_SL_L2	/* see ARM DDI 0406C: B4-1720 */
#define VTTBR_X		(14 - KVM_T0SZ)
#else
#define VTTBR_X		(5 - KVM_T0SZ)
#endif
#define VTTBR_BADDR_MASK  (((_AC(1, ULL) << (40 - VTTBR_X)) - 1) << VTTBR_X)
#define VTTBR_VMID_SHIFT  _AC(48, ULL)
#define VTTBR_VMID_MASK(size)	(_AT(u64, (1 << size) - 1) << VTTBR_VMID_SHIFT)

/* Hyp Syndrome Register (HSR) bits */
#define HSR_EC_SHIFT	(26)
#define HSR_EC		(_AC(0x3f, UL) << HSR_EC_SHIFT)
#define HSR_IL		(_AC(1, UL) << 25)
#define HSR_ISS		(HSR_IL - 1)
#define HSR_ISV_SHIFT	(24)
#define HSR_ISV		(_AC(1, UL) << HSR_ISV_SHIFT)
#define HSR_SRT_SHIFT	(16)
#define HSR_SRT_MASK	(0xf << HSR_SRT_SHIFT)
#define HSR_FSC		(0x3f)
#define HSR_FSC_TYPE	(0x3c)
#define HSR_SSE		(1 << 21)
#define HSR_WNR		(1 << 6)
#define HSR_CV_SHIFT	(24)
#define HSR_CV		(_AC(1, UL) << HSR_CV_SHIFT)
#define HSR_COND_SHIFT	(20)
#define HSR_COND	(_AC(0xf, UL) << HSR_COND_SHIFT)

#define FSC_FAULT	(0x04)
#define FSC_ACCESS	(0x08)
#define FSC_PERM	(0x0c)
#define FSC_SEA		(0x10)
#define FSC_SEA_TTW0	(0x14)
#define FSC_SEA_TTW1	(0x15)
#define FSC_SEA_TTW2	(0x16)
#define FSC_SEA_TTW3	(0x17)
#define FSC_SECC	(0x18)
#define FSC_SECC_TTW0	(0x1c)
#define FSC_SECC_TTW1	(0x1d)
#define FSC_SECC_TTW2	(0x1e)
#define FSC_SECC_TTW3	(0x1f)

/* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
#define HPFAR_MASK	(~0xf)

#define HSR_EC_UNKNOWN	(0x00)
#define HSR_EC_WFI	(0x01)
#define HSR_EC_CP15_32	(0x03)
#define HSR_EC_CP15_64	(0x04)
#define HSR_EC_CP14_MR	(0x05)
#define HSR_EC_CP14_LS	(0x06)
#define HSR_EC_CP_0_13	(0x07)
#define HSR_EC_CP10_ID	(0x08)
#define HSR_EC_JAZELLE	(0x09)
#define HSR_EC_BXJ	(0x0A)
#define HSR_EC_CP14_64	(0x0C)
#define HSR_EC_SVC_HYP	(0x11)
#define HSR_EC_HVC	(0x12)
#define HSR_EC_SMC	(0x13)
#define HSR_EC_IABT	(0x20)
#define HSR_EC_IABT_HYP	(0x21)
#define HSR_EC_DABT	(0x24)
#define HSR_EC_DABT_HYP	(0x25)
#define HSR_EC_MAX	(0x3f)

#define HSR_WFI_IS_WFE		(_AC(1, UL) << 0)

#define HSR_HVC_IMM_MASK	((_AC(1, UL) << 16) - 1)

#define HSR_DABT_S1PTW		(_AC(1, UL) << 7)
#define HSR_DABT_CM		(_AC(1, UL) << 8)

#define kvm_arm_exception_type	\
	{0, "RESET" }, 		\
	{1, "UNDEFINED" },	\
	{2, "SOFTWARE" },	\
	{3, "PREF_ABORT" },	\
	{4, "DATA_ABORT" },	\
	{5, "IRQ" },		\
	{6, "FIQ" },		\
	{7, "HVC" }

#define HSRECN(x) { HSR_EC_##x, #x }

#define kvm_arm_exception_class \
	HSRECN(UNKNOWN), HSRECN(WFI), HSRECN(CP15_32), HSRECN(CP15_64), \
	HSRECN(CP14_MR), HSRECN(CP14_LS), HSRECN(CP_0_13), HSRECN(CP10_ID), \
	HSRECN(JAZELLE), HSRECN(BXJ), HSRECN(CP14_64), HSRECN(SVC_HYP), \
	HSRECN(HVC), HSRECN(SMC), HSRECN(IABT), HSRECN(IABT_HYP), \
	HSRECN(DABT), HSRECN(DABT_HYP)


#endif /* __ARM_KVM_ARM_H__ */

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Name Type Size Permission Actions
hardware Folder 0755
mach Folder 0755
xen Folder 0755
Kbuild File 568 B 0644
arch_gicv3.h File 9.05 KB 0644
arch_timer.h File 2.48 KB 0644
arm-cci.h File 1.05 KB 0644
asm-offsets.h File 35 B 0644
assembler.h File 10.46 KB 0644
atomic.h File 13.22 KB 0644
auxvec.h File 29 B 0644
bL_switcher.h File 2.28 KB 0644
barrier.h File 2.84 KB 0644
bitops.h File 8.62 KB 0644
bitrev.h File 451 B 0644
bug.h File 2.46 KB 0644
bugs.h File 546 B 0644
cache.h File 813 B 0644
cacheflush.h File 15.54 KB 0644
cachetype.h File 2.71 KB 0644
checksum.h File 3.71 KB 0644
clocksource.h File 153 B 0644
cmpxchg.h File 6.14 KB 0644
compiler.h File 978 B 0644
cp15.h File 3.84 KB 0644
cpu.h File 533 B 0644
cpufeature.h File 1.4 KB 0644
cpuidle.h File 1.33 KB 0644
cputype.h File 8.42 KB 0644
cti.h File 3.62 KB 0644
dcc.h File 1.01 KB 0644
delay.h File 2.83 KB 0644
device.h File 771 B 0644
div64.h File 3.17 KB 0644
dma-contiguous.h File 265 B 0644
dma-iommu.h File 1.01 KB 0644
dma-mapping.h File 7.44 KB 0644
dma.h File 4.18 KB 0644
dmi.h File 528 B 0644
domain.h File 3.65 KB 0644
ecard.h File 5.98 KB 0644
edac.h File 1.51 KB 0644
efi.h File 3.04 KB 0644
elf.h File 4.52 KB 0644
entry-macro-multi.S File 726 B 0644
exception.h File 571 B 0644
fb.h File 375 B 0644
fiq.h File 1.36 KB 0644
firmware.h File 1.82 KB 0644
fixmap.h File 1.84 KB 0644
flat.h File 915 B 0644
floppy.h File 3.61 KB 0644
fncpy.h File 3.08 KB 0644
fpstate.h File 1.73 KB 0644
ftrace.h File 1.92 KB 0644
futex.h File 4.24 KB 0644
glue-cache.h File 3.51 KB 0644
glue-df.h File 2.2 KB 0644
glue-pf.h File 1.12 KB 0644
glue-proc.h File 4.46 KB 0644
glue.h File 759 B 0644
gpio.h File 693 B 0644
hardirq.h File 803 B 0644
highmem.h File 2.15 KB 0644
hugetlb-3level.h File 2.03 KB 0644
hugetlb.h File 1.78 KB 0644
hw_breakpoint.h File 3.53 KB 0644
hw_irq.h File 349 B 0644
hwcap.h File 378 B 0644
hypervisor.h File 140 B 0644
ide.h File 566 B 0644
idmap.h File 355 B 0644
insn.h File 636 B 0644
io.h File 15.96 KB 0644
irq.h File 1015 B 0644
irq_work.h File 234 B 0644
irqflags.h File 3.88 KB 0644
jump_label.h File 1009 B 0644
kexec-internal.h File 272 B 0644
kexec.h File 2.3 KB 0644
kgdb.h File 2.72 KB 0644
kmap_types.h File 190 B 0644
kprobes.h File 2.65 KB 0644
kvm_arm.h File 7.6 KB 0644
kvm_asm.h File 2.84 KB 0644
kvm_coproc.h File 1.99 KB 0644
kvm_emulate.h File 7.84 KB 0644
kvm_host.h File 10.31 KB 0644
kvm_hyp.h File 4.49 KB 0644
kvm_mmio.h File 1.34 KB 0644
kvm_mmu.h File 7.27 KB 0644
limits.h File 166 B 0644
linkage.h File 216 B 0644
mc146818rtc.h File 720 B 0644
mcpm.h File 11.92 KB 0644
mcs_spinlock.h File 570 B 0644
memblock.h File 248 B 0644
memory.h File 10.12 KB 0644
mmu.h File 953 B 0644
mmu_context.h File 3.94 KB 0644
module.h File 1.57 KB 0644
mpu.h File 2.15 KB 0644
mtd-xip.h File 666 B 0644
neon.h File 1.16 KB 0644
nwflash.h File 252 B 0644
opcodes-sec.h File 742 B 0644
opcodes-virt.h File 1.32 KB 0644
opcodes.h File 8.07 KB 0644
outercache.h File 3.78 KB 0644
page-nommu.h File 957 B 0644
page.h File 3.61 KB 0644
paravirt.h File 454 B 0644
patch.h File 438 B 0644
pci.h File 956 B 0644
percpu.h File 1.56 KB 0644
perf_event.h File 850 B 0644
pgalloc.h File 3.79 KB 0644
pgtable-2level-hwdef.h File 3.45 KB 0644
pgtable-2level-types.h File 1.84 KB 0644
pgtable-2level.h File 8.51 KB 0644
pgtable-3level-hwdef.h File 3.95 KB 0644
pgtable-3level-types.h File 1.89 KB 0644
pgtable-3level.h File 9.54 KB 0644
pgtable-hwdef.h File 467 B 0644
pgtable-nommu.h File 2.66 KB 0644
pgtable.h File 11.68 KB 0644
probes.h File 1.73 KB 0644
proc-fns.h File 4.79 KB 0644
processor.h File 3.4 KB 0644
procinfo.h File 1.27 KB 0644
prom.h File 715 B 0644
psci.h File 771 B 0644
ptrace.h File 4.89 KB 0644
sections.h File 189 B 0644
set_memory.h File 1.04 KB 0644
setup.h File 934 B 0644
shmparam.h File 419 B 0644
signal.h File 500 B 0644
smp.h File 3.1 KB 0644
smp_plat.h File 2.48 KB 0644
smp_scu.h File 1.32 KB 0644
smp_twd.h File 908 B 0644
sparsemem.h File 716 B 0644
spectre.h File 906 B 0644
spinlock.h File 5.49 KB 0644
spinlock_types.h File 541 B 0644
stackprotector.h File 1.09 KB 0644
stacktrace.h File 742 B 0644
stage2_pgtable.h File 2.12 KB 0644
string.h File 1.43 KB 0644
suspend.h File 369 B 0644
swab.h File 1005 B 0644
switch_to.h File 1.03 KB 0644
sync_bitops.h File 1.03 KB 0644
syscall.h File 2.48 KB 0644
system_info.h File 763 B 0644
system_misc.h File 1.14 KB 0644
tcm.h File 937 B 0644
therm.h File 655 B 0644
thread_info.h File 5.2 KB 0644
thread_notify.h File 1.2 KB 0644
timex.h File 577 B 0644
tlb.h File 7.37 KB 0644
tlbflush.h File 17.88 KB 0644
tls.h File 3.09 KB 0644
topology.h File 1.18 KB 0644
traps.h File 1.17 KB 0644
trusted_foundations.h File 2.29 KB 0644
uaccess-asm.h File 2.83 KB 0644
uaccess.h File 16.22 KB 0644
ucontext.h File 2.98 KB 0644
unaligned.h File 846 B 0644
unified.h File 1.61 KB 0644
unistd.h File 1.68 KB 0644
unwind.h File 1.71 KB 0644
uprobes.h File 1.07 KB 0644
user.h File 4.2 KB 0644
v7m.h File 2.93 KB 0644
vdso.h File 507 B 0644
vdso_datapage.h File 1.69 KB 0644
vfp.h File 2.86 KB 0644
vfpmacros.h File 2.1 KB 0644
vga.h File 305 B 0644
virt.h File 2.9 KB 0644
word-at-a-time.h File 2.08 KB 0644
xor.h File 5.22 KB 0644