| /* |
| * Arm IoT Kit security controller |
| * |
| * Copyright (c) 2018 Linaro Limited |
| * Written by Peter Maydell |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 or |
| * (at your option) any later version. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/log.h" |
| #include "qemu/module.h" |
| #include "qapi/error.h" |
| #include "trace.h" |
| #include "hw/sysbus.h" |
| #include "migration/vmstate.h" |
| #include "hw/registerfields.h" |
| #include "hw/irq.h" |
| #include "hw/misc/iotkit-secctl.h" |
| #include "hw/arm/armsse-version.h" |
| #include "hw/qdev-properties.h" |
| |
| /* Registers in the secure privilege control block */ |
| REG32(SECRESPCFG, 0x10) |
| REG32(NSCCFG, 0x14) |
| REG32(SECMPCINTSTATUS, 0x1c) |
| REG32(SECPPCINTSTAT, 0x20) |
| REG32(SECPPCINTCLR, 0x24) |
| REG32(SECPPCINTEN, 0x28) |
| REG32(SECMSCINTSTAT, 0x30) |
| REG32(SECMSCINTCLR, 0x34) |
| REG32(SECMSCINTEN, 0x38) |
| REG32(BRGINTSTAT, 0x40) |
| REG32(BRGINTCLR, 0x44) |
| REG32(BRGINTEN, 0x48) |
| REG32(AHBNSPPC0, 0x50) |
| REG32(AHBNSPPCEXP0, 0x60) |
| REG32(AHBNSPPCEXP1, 0x64) |
| REG32(AHBNSPPCEXP2, 0x68) |
| REG32(AHBNSPPCEXP3, 0x6c) |
| REG32(APBNSPPC0, 0x70) |
| REG32(APBNSPPC1, 0x74) |
| REG32(APBNSPPCEXP0, 0x80) |
| REG32(APBNSPPCEXP1, 0x84) |
| REG32(APBNSPPCEXP2, 0x88) |
| REG32(APBNSPPCEXP3, 0x8c) |
| REG32(AHBSPPPC0, 0x90) |
| REG32(AHBSPPPCEXP0, 0xa0) |
| REG32(AHBSPPPCEXP1, 0xa4) |
| REG32(AHBSPPPCEXP2, 0xa8) |
| REG32(AHBSPPPCEXP3, 0xac) |
| REG32(APBSPPPC0, 0xb0) |
| REG32(APBSPPPC1, 0xb4) |
| REG32(APBSPPPCEXP0, 0xc0) |
| REG32(APBSPPPCEXP1, 0xc4) |
| REG32(APBSPPPCEXP2, 0xc8) |
| REG32(APBSPPPCEXP3, 0xcc) |
| REG32(NSMSCEXP, 0xd0) |
| REG32(PID4, 0xfd0) |
| REG32(PID5, 0xfd4) |
| REG32(PID6, 0xfd8) |
| REG32(PID7, 0xfdc) |
| REG32(PID0, 0xfe0) |
| REG32(PID1, 0xfe4) |
| REG32(PID2, 0xfe8) |
| REG32(PID3, 0xfec) |
| REG32(CID0, 0xff0) |
| REG32(CID1, 0xff4) |
| REG32(CID2, 0xff8) |
| REG32(CID3, 0xffc) |
| |
| /* Registers in the non-secure privilege control block */ |
| REG32(AHBNSPPPC0, 0x90) |
| REG32(AHBNSPPPCEXP0, 0xa0) |
| REG32(AHBNSPPPCEXP1, 0xa4) |
| REG32(AHBNSPPPCEXP2, 0xa8) |
| REG32(AHBNSPPPCEXP3, 0xac) |
| REG32(APBNSPPPC0, 0xb0) |
| REG32(APBNSPPPC1, 0xb4) |
| REG32(APBNSPPPCEXP0, 0xc0) |
| REG32(APBNSPPPCEXP1, 0xc4) |
| REG32(APBNSPPPCEXP2, 0xc8) |
| REG32(APBNSPPPCEXP3, 0xcc) |
| /* PID and CID registers are also present in the NS block */ |
| |
| static const uint8_t iotkit_secctl_s_idregs[] = { |
| 0x04, 0x00, 0x00, 0x00, |
| 0x52, 0xb8, 0x0b, 0x00, |
| 0x0d, 0xf0, 0x05, 0xb1, |
| }; |
| |
| static const uint8_t iotkit_secctl_ns_idregs[] = { |
| 0x04, 0x00, 0x00, 0x00, |
| 0x53, 0xb8, 0x0b, 0x00, |
| 0x0d, 0xf0, 0x05, 0xb1, |
| }; |
| |
| static const uint8_t iotkit_secctl_s_sse300_idregs[] = { |
| 0x04, 0x00, 0x00, 0x00, |
| 0x52, 0xb8, 0x2b, 0x00, |
| 0x0d, 0xf0, 0x05, 0xb1, |
| }; |
| |
| static const uint8_t iotkit_secctl_ns_sse300_idregs[] = { |
| 0x04, 0x00, 0x00, 0x00, |
| 0x53, 0xb8, 0x2b, 0x00, |
| 0x0d, 0xf0, 0x05, 0xb1, |
| }; |
| |
| |
| /* The register sets for the various PPCs (AHB internal, APB internal, |
| * AHB expansion, APB expansion) are all set up so that they are |
| * in 16-aligned blocks so offsets 0xN0, 0xN4, 0xN8, 0xNC are PPCs |
| * 0, 1, 2, 3 of that type, so we can convert a register address offset |
| * into an index into a PPC array easily. |
| */ |
| static inline int offset_to_ppc_idx(uint32_t offset) |
| { |
| return extract32(offset, 2, 2); |
| } |
| |
| typedef void PerPPCFunction(IoTKitSecCtlPPC *ppc); |
| |
| static void foreach_ppc(IoTKitSecCtl *s, PerPPCFunction *fn) |
| { |
| int i; |
| |
| for (i = 0; i < IOTS_NUM_APB_PPC; i++) { |
| fn(&s->apb[i]); |
| } |
| for (i = 0; i < IOTS_NUM_APB_EXP_PPC; i++) { |
| fn(&s->apbexp[i]); |
| } |
| for (i = 0; i < IOTS_NUM_AHB_EXP_PPC; i++) { |
| fn(&s->ahbexp[i]); |
| } |
| } |
| |
| static MemTxResult iotkit_secctl_s_read(void *opaque, hwaddr addr, |
| uint64_t *pdata, |
| unsigned size, MemTxAttrs attrs) |
| { |
| uint64_t r; |
| uint32_t offset = addr & ~0x3; |
| IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); |
| |
| switch (offset) { |
| case A_AHBNSPPC0: |
| case A_AHBSPPPC0: |
| r = 0; |
| break; |
| case A_SECRESPCFG: |
| r = s->secrespcfg; |
| break; |
| case A_NSCCFG: |
| r = s->nsccfg; |
| break; |
| case A_SECMPCINTSTATUS: |
| r = s->mpcintstatus; |
| break; |
| case A_SECPPCINTSTAT: |
| r = s->secppcintstat; |
| break; |
| case A_SECPPCINTEN: |
| r = s->secppcinten; |
| break; |
| case A_BRGINTSTAT: |
| /* QEMU's bus fabric can never report errors as it doesn't buffer |
| * writes, so we never report bridge interrupts. |
| */ |
| r = 0; |
| break; |
| case A_BRGINTEN: |
| r = s->brginten; |
| break; |
| case A_AHBNSPPCEXP0: |
| case A_AHBNSPPCEXP1: |
| case A_AHBNSPPCEXP2: |
| case A_AHBNSPPCEXP3: |
| r = s->ahbexp[offset_to_ppc_idx(offset)].ns; |
| break; |
| case A_APBNSPPC0: |
| case A_APBNSPPC1: |
| r = s->apb[offset_to_ppc_idx(offset)].ns; |
| break; |
| case A_APBNSPPCEXP0: |
| case A_APBNSPPCEXP1: |
| case A_APBNSPPCEXP2: |
| case A_APBNSPPCEXP3: |
| r = s->apbexp[offset_to_ppc_idx(offset)].ns; |
| break; |
| case A_AHBSPPPCEXP0: |
| case A_AHBSPPPCEXP1: |
| case A_AHBSPPPCEXP2: |
| case A_AHBSPPPCEXP3: |
| r = s->apbexp[offset_to_ppc_idx(offset)].sp; |
| break; |
| case A_APBSPPPC0: |
| case A_APBSPPPC1: |
| r = s->apb[offset_to_ppc_idx(offset)].sp; |
| break; |
| case A_APBSPPPCEXP0: |
| case A_APBSPPPCEXP1: |
| case A_APBSPPPCEXP2: |
| case A_APBSPPPCEXP3: |
| r = s->apbexp[offset_to_ppc_idx(offset)].sp; |
| break; |
| case A_SECMSCINTSTAT: |
| r = s->secmscintstat; |
| break; |
| case A_SECMSCINTEN: |
| r = s->secmscinten; |
| break; |
| case A_NSMSCEXP: |
| r = s->nsmscexp; |
| break; |
| case A_PID4: |
| case A_PID5: |
| case A_PID6: |
| case A_PID7: |
| case A_PID0: |
| case A_PID1: |
| case A_PID2: |
| case A_PID3: |
| case A_CID0: |
| case A_CID1: |
| case A_CID2: |
| case A_CID3: |
| switch (s->sse_version) { |
| case ARMSSE_SSE300: |
| r = iotkit_secctl_s_sse300_idregs[(offset - A_PID4) / 4]; |
| break; |
| default: |
| r = iotkit_secctl_s_idregs[(offset - A_PID4) / 4]; |
| break; |
| } |
| break; |
| case A_SECPPCINTCLR: |
| case A_SECMSCINTCLR: |
| case A_BRGINTCLR: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IotKit SecCtl S block read: write-only offset 0x%x\n", |
| offset); |
| r = 0; |
| break; |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IotKit SecCtl S block read: bad offset 0x%x\n", offset); |
| r = 0; |
| break; |
| } |
| |
| if (size != 4) { |
| /* None of our registers are access-sensitive, so just pull the right |
| * byte out of the word read result. |
| */ |
| r = extract32(r, (addr & 3) * 8, size * 8); |
| } |
| |
| trace_iotkit_secctl_s_read(offset, r, size); |
| *pdata = r; |
| return MEMTX_OK; |
| } |
| |
| static void iotkit_secctl_update_ppc_ap(IoTKitSecCtlPPC *ppc) |
| { |
| int i; |
| |
| for (i = 0; i < ppc->numports; i++) { |
| bool v; |
| |
| if (extract32(ppc->ns, i, 1)) { |
| v = extract32(ppc->nsp, i, 1); |
| } else { |
| v = extract32(ppc->sp, i, 1); |
| } |
| qemu_set_irq(ppc->ap[i], v); |
| } |
| } |
| |
| static void iotkit_secctl_ppc_ns_write(IoTKitSecCtlPPC *ppc, uint32_t value) |
| { |
| int i; |
| |
| ppc->ns = value & MAKE_64BIT_MASK(0, ppc->numports); |
| for (i = 0; i < ppc->numports; i++) { |
| qemu_set_irq(ppc->nonsec[i], extract32(ppc->ns, i, 1)); |
| } |
| iotkit_secctl_update_ppc_ap(ppc); |
| } |
| |
| static void iotkit_secctl_ppc_sp_write(IoTKitSecCtlPPC *ppc, uint32_t value) |
| { |
| ppc->sp = value & MAKE_64BIT_MASK(0, ppc->numports); |
| iotkit_secctl_update_ppc_ap(ppc); |
| } |
| |
| static void iotkit_secctl_ppc_nsp_write(IoTKitSecCtlPPC *ppc, uint32_t value) |
| { |
| ppc->nsp = value & MAKE_64BIT_MASK(0, ppc->numports); |
| iotkit_secctl_update_ppc_ap(ppc); |
| } |
| |
| static void iotkit_secctl_ppc_update_irq_clear(IoTKitSecCtlPPC *ppc) |
| { |
| uint32_t value = ppc->parent->secppcintstat; |
| |
| qemu_set_irq(ppc->irq_clear, extract32(value, ppc->irq_bit_offset, 1)); |
| } |
| |
| static void iotkit_secctl_ppc_update_irq_enable(IoTKitSecCtlPPC *ppc) |
| { |
| uint32_t value = ppc->parent->secppcinten; |
| |
| qemu_set_irq(ppc->irq_enable, extract32(value, ppc->irq_bit_offset, 1)); |
| } |
| |
| static void iotkit_secctl_update_mscexp_irqs(qemu_irq *msc_irqs, uint32_t value) |
| { |
| int i; |
| |
| for (i = 0; i < IOTS_NUM_EXP_MSC; i++) { |
| qemu_set_irq(msc_irqs[i], extract32(value, i + 16, 1)); |
| } |
| } |
| |
| static void iotkit_secctl_update_msc_irq(IoTKitSecCtl *s) |
| { |
| /* Update the combined MSC IRQ, based on S_MSCEXP_STATUS and S_MSCEXP_EN */ |
| bool level = s->secmscintstat & s->secmscinten; |
| |
| qemu_set_irq(s->msc_irq, level); |
| } |
| |
| static MemTxResult iotkit_secctl_s_write(void *opaque, hwaddr addr, |
| uint64_t value, |
| unsigned size, MemTxAttrs attrs) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); |
| uint32_t offset = addr; |
| IoTKitSecCtlPPC *ppc; |
| |
| trace_iotkit_secctl_s_write(offset, value, size); |
| |
| if (size != 4) { |
| /* Byte and halfword writes are ignored */ |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IotKit SecCtl S block write: bad size, ignored\n"); |
| return MEMTX_OK; |
| } |
| |
| switch (offset) { |
| case A_NSCCFG: |
| s->nsccfg = value & 3; |
| qemu_set_irq(s->nsc_cfg_irq, s->nsccfg); |
| break; |
| case A_SECRESPCFG: |
| value &= 1; |
| s->secrespcfg = value; |
| qemu_set_irq(s->sec_resp_cfg, s->secrespcfg); |
| break; |
| case A_SECPPCINTCLR: |
| s->secppcintstat &= ~(value & 0x00f000f3); |
| foreach_ppc(s, iotkit_secctl_ppc_update_irq_clear); |
| break; |
| case A_SECPPCINTEN: |
| s->secppcinten = value & 0x00f000f3; |
| foreach_ppc(s, iotkit_secctl_ppc_update_irq_enable); |
| break; |
| case A_BRGINTCLR: |
| break; |
| case A_BRGINTEN: |
| s->brginten = value & 0xffff0000; |
| break; |
| case A_AHBNSPPCEXP0: |
| case A_AHBNSPPCEXP1: |
| case A_AHBNSPPCEXP2: |
| case A_AHBNSPPCEXP3: |
| ppc = &s->ahbexp[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_ns_write(ppc, value); |
| break; |
| case A_APBNSPPC0: |
| case A_APBNSPPC1: |
| ppc = &s->apb[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_ns_write(ppc, value); |
| break; |
| case A_APBNSPPCEXP0: |
| case A_APBNSPPCEXP1: |
| case A_APBNSPPCEXP2: |
| case A_APBNSPPCEXP3: |
| ppc = &s->apbexp[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_ns_write(ppc, value); |
| break; |
| case A_AHBSPPPCEXP0: |
| case A_AHBSPPPCEXP1: |
| case A_AHBSPPPCEXP2: |
| case A_AHBSPPPCEXP3: |
| ppc = &s->ahbexp[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_sp_write(ppc, value); |
| break; |
| case A_APBSPPPC0: |
| case A_APBSPPPC1: |
| ppc = &s->apb[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_sp_write(ppc, value); |
| break; |
| case A_APBSPPPCEXP0: |
| case A_APBSPPPCEXP1: |
| case A_APBSPPPCEXP2: |
| case A_APBSPPPCEXP3: |
| ppc = &s->apbexp[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_sp_write(ppc, value); |
| break; |
| case A_SECMSCINTCLR: |
| iotkit_secctl_update_mscexp_irqs(s->mscexp_clear, value); |
| break; |
| case A_SECMSCINTEN: |
| s->secmscinten = value; |
| iotkit_secctl_update_msc_irq(s); |
| break; |
| case A_NSMSCEXP: |
| s->nsmscexp = value; |
| iotkit_secctl_update_mscexp_irqs(s->mscexp_ns, value); |
| break; |
| case A_SECMPCINTSTATUS: |
| case A_SECPPCINTSTAT: |
| case A_SECMSCINTSTAT: |
| case A_BRGINTSTAT: |
| case A_AHBNSPPC0: |
| case A_AHBSPPPC0: |
| case A_PID4: |
| case A_PID5: |
| case A_PID6: |
| case A_PID7: |
| case A_PID0: |
| case A_PID1: |
| case A_PID2: |
| case A_PID3: |
| case A_CID0: |
| case A_CID1: |
| case A_CID2: |
| case A_CID3: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IoTKit SecCtl S block write: " |
| "read-only offset 0x%x\n", offset); |
| break; |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IotKit SecCtl S block write: bad offset 0x%x\n", |
| offset); |
| break; |
| } |
| |
| return MEMTX_OK; |
| } |
| |
| static MemTxResult iotkit_secctl_ns_read(void *opaque, hwaddr addr, |
| uint64_t *pdata, |
| unsigned size, MemTxAttrs attrs) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); |
| uint64_t r; |
| uint32_t offset = addr & ~0x3; |
| |
| switch (offset) { |
| case A_AHBNSPPPC0: |
| r = 0; |
| break; |
| case A_AHBNSPPPCEXP0: |
| case A_AHBNSPPPCEXP1: |
| case A_AHBNSPPPCEXP2: |
| case A_AHBNSPPPCEXP3: |
| r = s->ahbexp[offset_to_ppc_idx(offset)].nsp; |
| break; |
| case A_APBNSPPPC0: |
| case A_APBNSPPPC1: |
| r = s->apb[offset_to_ppc_idx(offset)].nsp; |
| break; |
| case A_APBNSPPPCEXP0: |
| case A_APBNSPPPCEXP1: |
| case A_APBNSPPPCEXP2: |
| case A_APBNSPPPCEXP3: |
| r = s->apbexp[offset_to_ppc_idx(offset)].nsp; |
| break; |
| case A_PID4: |
| case A_PID5: |
| case A_PID6: |
| case A_PID7: |
| case A_PID0: |
| case A_PID1: |
| case A_PID2: |
| case A_PID3: |
| case A_CID0: |
| case A_CID1: |
| case A_CID2: |
| case A_CID3: |
| switch (s->sse_version) { |
| case ARMSSE_SSE300: |
| r = iotkit_secctl_ns_sse300_idregs[(offset - A_PID4) / 4]; |
| break; |
| default: |
| r = iotkit_secctl_ns_idregs[(offset - A_PID4) / 4]; |
| break; |
| } |
| break; |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IotKit SecCtl NS block write: bad offset 0x%x\n", |
| offset); |
| r = 0; |
| break; |
| } |
| |
| if (size != 4) { |
| /* None of our registers are access-sensitive, so just pull the right |
| * byte out of the word read result. |
| */ |
| r = extract32(r, (addr & 3) * 8, size * 8); |
| } |
| |
| trace_iotkit_secctl_ns_read(offset, r, size); |
| *pdata = r; |
| return MEMTX_OK; |
| } |
| |
| static MemTxResult iotkit_secctl_ns_write(void *opaque, hwaddr addr, |
| uint64_t value, |
| unsigned size, MemTxAttrs attrs) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); |
| uint32_t offset = addr; |
| IoTKitSecCtlPPC *ppc; |
| |
| trace_iotkit_secctl_ns_write(offset, value, size); |
| |
| if (size != 4) { |
| /* Byte and halfword writes are ignored */ |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IotKit SecCtl NS block write: bad size, ignored\n"); |
| return MEMTX_OK; |
| } |
| |
| switch (offset) { |
| case A_AHBNSPPPCEXP0: |
| case A_AHBNSPPPCEXP1: |
| case A_AHBNSPPPCEXP2: |
| case A_AHBNSPPPCEXP3: |
| ppc = &s->ahbexp[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_nsp_write(ppc, value); |
| break; |
| case A_APBNSPPPC0: |
| case A_APBNSPPPC1: |
| ppc = &s->apb[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_nsp_write(ppc, value); |
| break; |
| case A_APBNSPPPCEXP0: |
| case A_APBNSPPPCEXP1: |
| case A_APBNSPPPCEXP2: |
| case A_APBNSPPPCEXP3: |
| ppc = &s->apbexp[offset_to_ppc_idx(offset)]; |
| iotkit_secctl_ppc_nsp_write(ppc, value); |
| break; |
| case A_AHBNSPPPC0: |
| case A_PID4: |
| case A_PID5: |
| case A_PID6: |
| case A_PID7: |
| case A_PID0: |
| case A_PID1: |
| case A_PID2: |
| case A_PID3: |
| case A_CID0: |
| case A_CID1: |
| case A_CID2: |
| case A_CID3: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IoTKit SecCtl NS block write: " |
| "read-only offset 0x%x\n", offset); |
| break; |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "IotKit SecCtl NS block write: bad offset 0x%x\n", |
| offset); |
| break; |
| } |
| |
| return MEMTX_OK; |
| } |
| |
| static const MemoryRegionOps iotkit_secctl_s_ops = { |
| .read_with_attrs = iotkit_secctl_s_read, |
| .write_with_attrs = iotkit_secctl_s_write, |
| .endianness = DEVICE_LITTLE_ENDIAN, |
| .valid.min_access_size = 1, |
| .valid.max_access_size = 4, |
| .impl.min_access_size = 1, |
| .impl.max_access_size = 4, |
| }; |
| |
| static const MemoryRegionOps iotkit_secctl_ns_ops = { |
| .read_with_attrs = iotkit_secctl_ns_read, |
| .write_with_attrs = iotkit_secctl_ns_write, |
| .endianness = DEVICE_LITTLE_ENDIAN, |
| .valid.min_access_size = 1, |
| .valid.max_access_size = 4, |
| .impl.min_access_size = 1, |
| .impl.max_access_size = 4, |
| }; |
| |
| static void iotkit_secctl_reset_ppc(IoTKitSecCtlPPC *ppc) |
| { |
| ppc->ns = 0; |
| ppc->sp = 0; |
| ppc->nsp = 0; |
| } |
| |
| static void iotkit_secctl_reset(DeviceState *dev) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(dev); |
| |
| s->secppcintstat = 0; |
| s->secppcinten = 0; |
| s->secrespcfg = 0; |
| s->nsccfg = 0; |
| s->brginten = 0; |
| |
| foreach_ppc(s, iotkit_secctl_reset_ppc); |
| } |
| |
| static void iotkit_secctl_mpc_status(void *opaque, int n, int level) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); |
| |
| s->mpcintstatus = deposit32(s->mpcintstatus, n, 1, !!level); |
| } |
| |
| static void iotkit_secctl_mpcexp_status(void *opaque, int n, int level) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); |
| |
| s->mpcintstatus = deposit32(s->mpcintstatus, n + 16, 1, !!level); |
| } |
| |
| static void iotkit_secctl_mscexp_status(void *opaque, int n, int level) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(opaque); |
| |
| s->secmscintstat = deposit32(s->secmscintstat, n + 16, 1, !!level); |
| iotkit_secctl_update_msc_irq(s); |
| } |
| |
| static void iotkit_secctl_ppc_irqstatus(void *opaque, int n, int level) |
| { |
| IoTKitSecCtlPPC *ppc = opaque; |
| IoTKitSecCtl *s = IOTKIT_SECCTL(ppc->parent); |
| int irqbit = ppc->irq_bit_offset + n; |
| |
| s->secppcintstat = deposit32(s->secppcintstat, irqbit, 1, level); |
| } |
| |
| static void iotkit_secctl_init_ppc(IoTKitSecCtl *s, |
| IoTKitSecCtlPPC *ppc, |
| const char *name, |
| int numports, |
| int irq_bit_offset) |
| { |
| char *gpioname; |
| DeviceState *dev = DEVICE(s); |
| |
| ppc->numports = numports; |
| ppc->irq_bit_offset = irq_bit_offset; |
| ppc->parent = s; |
| |
| gpioname = g_strdup_printf("%s_nonsec", name); |
| qdev_init_gpio_out_named(dev, ppc->nonsec, gpioname, numports); |
| g_free(gpioname); |
| gpioname = g_strdup_printf("%s_ap", name); |
| qdev_init_gpio_out_named(dev, ppc->ap, gpioname, numports); |
| g_free(gpioname); |
| gpioname = g_strdup_printf("%s_irq_enable", name); |
| qdev_init_gpio_out_named(dev, &ppc->irq_enable, gpioname, 1); |
| g_free(gpioname); |
| gpioname = g_strdup_printf("%s_irq_clear", name); |
| qdev_init_gpio_out_named(dev, &ppc->irq_clear, gpioname, 1); |
| g_free(gpioname); |
| gpioname = g_strdup_printf("%s_irq_status", name); |
| qdev_init_gpio_in_named_with_opaque(dev, iotkit_secctl_ppc_irqstatus, |
| ppc, gpioname, 1); |
| g_free(gpioname); |
| } |
| |
| static void iotkit_secctl_init(Object *obj) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(obj); |
| SysBusDevice *sbd = SYS_BUS_DEVICE(obj); |
| DeviceState *dev = DEVICE(obj); |
| int i; |
| |
| iotkit_secctl_init_ppc(s, &s->apb[0], "apb_ppc0", |
| IOTS_APB_PPC0_NUM_PORTS, 0); |
| iotkit_secctl_init_ppc(s, &s->apb[1], "apb_ppc1", |
| IOTS_APB_PPC1_NUM_PORTS, 1); |
| |
| for (i = 0; i < IOTS_NUM_APB_EXP_PPC; i++) { |
| IoTKitSecCtlPPC *ppc = &s->apbexp[i]; |
| char *ppcname = g_strdup_printf("apb_ppcexp%d", i); |
| iotkit_secctl_init_ppc(s, ppc, ppcname, IOTS_PPC_NUM_PORTS, 4 + i); |
| g_free(ppcname); |
| } |
| for (i = 0; i < IOTS_NUM_AHB_EXP_PPC; i++) { |
| IoTKitSecCtlPPC *ppc = &s->ahbexp[i]; |
| char *ppcname = g_strdup_printf("ahb_ppcexp%d", i); |
| iotkit_secctl_init_ppc(s, ppc, ppcname, IOTS_PPC_NUM_PORTS, 20 + i); |
| g_free(ppcname); |
| } |
| |
| qdev_init_gpio_out_named(dev, &s->sec_resp_cfg, "sec_resp_cfg", 1); |
| qdev_init_gpio_out_named(dev, &s->nsc_cfg_irq, "nsc_cfg", 1); |
| |
| qdev_init_gpio_in_named(dev, iotkit_secctl_mpc_status, "mpc_status", |
| IOTS_NUM_MPC); |
| qdev_init_gpio_in_named(dev, iotkit_secctl_mpcexp_status, |
| "mpcexp_status", IOTS_NUM_EXP_MPC); |
| |
| qdev_init_gpio_in_named(dev, iotkit_secctl_mscexp_status, |
| "mscexp_status", IOTS_NUM_EXP_MSC); |
| qdev_init_gpio_out_named(dev, s->mscexp_clear, "mscexp_clear", |
| IOTS_NUM_EXP_MSC); |
| qdev_init_gpio_out_named(dev, s->mscexp_ns, "mscexp_ns", |
| IOTS_NUM_EXP_MSC); |
| qdev_init_gpio_out_named(dev, &s->msc_irq, "msc_irq", 1); |
| |
| memory_region_init_io(&s->s_regs, obj, &iotkit_secctl_s_ops, |
| s, "iotkit-secctl-s-regs", 0x1000); |
| memory_region_init_io(&s->ns_regs, obj, &iotkit_secctl_ns_ops, |
| s, "iotkit-secctl-ns-regs", 0x1000); |
| sysbus_init_mmio(sbd, &s->s_regs); |
| sysbus_init_mmio(sbd, &s->ns_regs); |
| } |
| |
| static void iotkit_secctl_realize(DeviceState *dev, Error **errp) |
| { |
| IoTKitSecCtl *s = IOTKIT_SECCTL(dev); |
| |
| if (!armsse_version_valid(s->sse_version)) { |
| error_setg(errp, "invalid sse-version value %d", s->sse_version); |
| return; |
| } |
| } |
| |
| static const VMStateDescription iotkit_secctl_ppc_vmstate = { |
| .name = "iotkit-secctl-ppc", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (const VMStateField[]) { |
| VMSTATE_UINT32(ns, IoTKitSecCtlPPC), |
| VMSTATE_UINT32(sp, IoTKitSecCtlPPC), |
| VMSTATE_UINT32(nsp, IoTKitSecCtlPPC), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription iotkit_secctl_mpcintstatus_vmstate = { |
| .name = "iotkit-secctl-mpcintstatus", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (const VMStateField[]) { |
| VMSTATE_UINT32(mpcintstatus, IoTKitSecCtl), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static bool needed_always(void *opaque) |
| { |
| return true; |
| } |
| |
| static const VMStateDescription iotkit_secctl_msc_vmstate = { |
| .name = "iotkit-secctl/msc", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .needed = needed_always, |
| .fields = (const VMStateField[]) { |
| VMSTATE_UINT32(secmscintstat, IoTKitSecCtl), |
| VMSTATE_UINT32(secmscinten, IoTKitSecCtl), |
| VMSTATE_UINT32(nsmscexp, IoTKitSecCtl), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription iotkit_secctl_vmstate = { |
| .name = "iotkit-secctl", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (const VMStateField[]) { |
| VMSTATE_UINT32(secppcintstat, IoTKitSecCtl), |
| VMSTATE_UINT32(secppcinten, IoTKitSecCtl), |
| VMSTATE_UINT32(secrespcfg, IoTKitSecCtl), |
| VMSTATE_UINT32(nsccfg, IoTKitSecCtl), |
| VMSTATE_UINT32(brginten, IoTKitSecCtl), |
| VMSTATE_STRUCT_ARRAY(apb, IoTKitSecCtl, IOTS_NUM_APB_PPC, 1, |
| iotkit_secctl_ppc_vmstate, IoTKitSecCtlPPC), |
| VMSTATE_STRUCT_ARRAY(apbexp, IoTKitSecCtl, IOTS_NUM_APB_EXP_PPC, 1, |
| iotkit_secctl_ppc_vmstate, IoTKitSecCtlPPC), |
| VMSTATE_STRUCT_ARRAY(ahbexp, IoTKitSecCtl, IOTS_NUM_AHB_EXP_PPC, 1, |
| iotkit_secctl_ppc_vmstate, IoTKitSecCtlPPC), |
| VMSTATE_END_OF_LIST() |
| }, |
| .subsections = (const VMStateDescription * const []) { |
| &iotkit_secctl_mpcintstatus_vmstate, |
| &iotkit_secctl_msc_vmstate, |
| NULL |
| }, |
| }; |
| |
| static Property iotkit_secctl_props[] = { |
| DEFINE_PROP_UINT32("sse-version", IoTKitSecCtl, sse_version, 0), |
| DEFINE_PROP_END_OF_LIST() |
| }; |
| |
| static void iotkit_secctl_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| dc->vmsd = &iotkit_secctl_vmstate; |
| device_class_set_legacy_reset(dc, iotkit_secctl_reset); |
| dc->realize = iotkit_secctl_realize; |
| device_class_set_props(dc, iotkit_secctl_props); |
| } |
| |
| static const TypeInfo iotkit_secctl_info = { |
| .name = TYPE_IOTKIT_SECCTL, |
| .parent = TYPE_SYS_BUS_DEVICE, |
| .instance_size = sizeof(IoTKitSecCtl), |
| .instance_init = iotkit_secctl_init, |
| .class_init = iotkit_secctl_class_init, |
| }; |
| |
| static void iotkit_secctl_register_types(void) |
| { |
| type_register_static(&iotkit_secctl_info); |
| } |
| |
| type_init(iotkit_secctl_register_types); |
