diff options
Diffstat (limited to 'hw/intc/xics_spapr.c')
| -rw-r--r-- | hw/intc/xics_spapr.c | 262 |
1 files changed, 236 insertions, 26 deletions
diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c index 2e27b92b87..37b2d99977 100644 --- a/hw/intc/xics_spapr.c +++ b/hw/intc/xics_spapr.c @@ -26,12 +26,12 @@ */ #include "qemu/osdep.h" -#include "cpu.h" -#include "hw/hw.h" #include "trace.h" #include "qemu/timer.h" #include "hw/ppc/spapr.h" +#include "hw/ppc/spapr_cpu_core.h" #include "hw/ppc/xics.h" +#include "hw/ppc/xics_spapr.h" #include "hw/ppc/fdt.h" #include "qapi/visitor.h" @@ -39,21 +39,44 @@ * Guest interfaces */ -static target_ulong h_cppr(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static bool check_emulated_xics(SpaprMachineState *spapr, const char *func) +{ + if (spapr_ovec_test(spapr->ov5_cas, OV5_XIVE_EXPLOIT) || + kvm_irqchip_in_kernel()) { + error_report("pseries: %s must only be called for emulated XICS", + func); + return false; + } + + return true; +} + +#define CHECK_EMULATED_XICS_HCALL(spapr) \ + do { \ + if (!check_emulated_xics((spapr), __func__)) { \ + return H_HARDWARE; \ + } \ + } while (0) + +static target_ulong h_cppr(PowerPCCPU *cpu, SpaprMachineState *spapr, target_ulong opcode, target_ulong *args) { target_ulong cppr = args[0]; - icp_set_cppr(ICP(cpu->intc), cppr); + CHECK_EMULATED_XICS_HCALL(spapr); + + icp_set_cppr(spapr_cpu_state(cpu)->icp, cppr); return H_SUCCESS; } -static target_ulong h_ipi(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static target_ulong h_ipi(PowerPCCPU *cpu, SpaprMachineState *spapr, target_ulong opcode, target_ulong *args) { target_ulong mfrr = args[1]; ICPState *icp = xics_icp_get(XICS_FABRIC(spapr), args[0]); + CHECK_EMULATED_XICS_HCALL(spapr); + if (!icp) { return H_PARAMETER; } @@ -62,39 +85,54 @@ static target_ulong h_ipi(PowerPCCPU *cpu, sPAPRMachineState *spapr, return H_SUCCESS; } -static target_ulong h_xirr(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static target_ulong h_xirr(PowerPCCPU *cpu, SpaprMachineState *spapr, target_ulong opcode, target_ulong *args) { - uint32_t xirr = icp_accept(ICP(cpu->intc)); + uint32_t xirr = icp_accept(spapr_cpu_state(cpu)->icp); + + CHECK_EMULATED_XICS_HCALL(spapr); args[0] = xirr; return H_SUCCESS; } -static target_ulong h_xirr_x(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static target_ulong h_xirr_x(PowerPCCPU *cpu, SpaprMachineState *spapr, target_ulong opcode, target_ulong *args) { - uint32_t xirr = icp_accept(ICP(cpu->intc)); + uint32_t xirr = icp_accept(spapr_cpu_state(cpu)->icp); + + CHECK_EMULATED_XICS_HCALL(spapr); args[0] = xirr; args[1] = cpu_get_host_ticks(); return H_SUCCESS; } -static target_ulong h_eoi(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static target_ulong h_eoi(PowerPCCPU *cpu, SpaprMachineState *spapr, target_ulong opcode, target_ulong *args) { target_ulong xirr = args[0]; - icp_eoi(ICP(cpu->intc), xirr); + CHECK_EMULATED_XICS_HCALL(spapr); + + icp_eoi(spapr_cpu_state(cpu)->icp, xirr); return H_SUCCESS; } -static target_ulong h_ipoll(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static target_ulong h_ipoll(PowerPCCPU *cpu, SpaprMachineState *spapr, target_ulong opcode, target_ulong *args) { + ICPState *icp = xics_icp_get(XICS_FABRIC(spapr), args[0]); uint32_t mfrr; - uint32_t xirr = icp_ipoll(ICP(cpu->intc), &mfrr); + uint32_t xirr; + + CHECK_EMULATED_XICS_HCALL(spapr); + + if (!icp) { + return H_PARAMETER; + } + + xirr = icp_ipoll(icp, &mfrr); args[0] = xirr; args[1] = mfrr; @@ -102,7 +140,15 @@ static target_ulong h_ipoll(PowerPCCPU *cpu, sPAPRMachineState *spapr, return H_SUCCESS; } -static void rtas_set_xive(PowerPCCPU *cpu, sPAPRMachineState *spapr, +#define CHECK_EMULATED_XICS_RTAS(spapr, rets) \ + do { \ + if (!check_emulated_xics((spapr), __func__)) { \ + rtas_st((rets), 0, RTAS_OUT_HW_ERROR); \ + return; \ + } \ + } while (0) + +static void rtas_set_xive(PowerPCCPU *cpu, SpaprMachineState *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets) @@ -110,6 +156,8 @@ static void rtas_set_xive(PowerPCCPU *cpu, sPAPRMachineState *spapr, ICSState *ics = spapr->ics; uint32_t nr, srcno, server, priority; + CHECK_EMULATED_XICS_RTAS(spapr, rets); + if ((nargs != 3) || (nret != 1)) { rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); return; @@ -130,12 +178,12 @@ static void rtas_set_xive(PowerPCCPU *cpu, sPAPRMachineState *spapr, } srcno = nr - ics->offset; - ics_simple_write_xive(ics, srcno, server, priority, priority); + ics_write_xive(ics, srcno, server, priority, priority); rtas_st(rets, 0, RTAS_OUT_SUCCESS); } -static void rtas_get_xive(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static void rtas_get_xive(PowerPCCPU *cpu, SpaprMachineState *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets) @@ -143,6 +191,8 @@ static void rtas_get_xive(PowerPCCPU *cpu, sPAPRMachineState *spapr, ICSState *ics = spapr->ics; uint32_t nr, srcno; + CHECK_EMULATED_XICS_RTAS(spapr, rets); + if ((nargs != 1) || (nret != 3)) { rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); return; @@ -165,7 +215,7 @@ static void rtas_get_xive(PowerPCCPU *cpu, sPAPRMachineState *spapr, rtas_st(rets, 2, ics->irqs[srcno].priority); } -static void rtas_int_off(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static void rtas_int_off(PowerPCCPU *cpu, SpaprMachineState *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets) @@ -173,6 +223,8 @@ static void rtas_int_off(PowerPCCPU *cpu, sPAPRMachineState *spapr, ICSState *ics = spapr->ics; uint32_t nr, srcno; + CHECK_EMULATED_XICS_RTAS(spapr, rets); + if ((nargs != 1) || (nret != 1)) { rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); return; @@ -190,13 +242,13 @@ static void rtas_int_off(PowerPCCPU *cpu, sPAPRMachineState *spapr, } srcno = nr - ics->offset; - ics_simple_write_xive(ics, srcno, ics->irqs[srcno].server, 0xff, - ics->irqs[srcno].priority); + ics_write_xive(ics, srcno, ics->irqs[srcno].server, 0xff, + ics->irqs[srcno].priority); rtas_st(rets, 0, RTAS_OUT_SUCCESS); } -static void rtas_int_on(PowerPCCPU *cpu, sPAPRMachineState *spapr, +static void rtas_int_on(PowerPCCPU *cpu, SpaprMachineState *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets) @@ -204,6 +256,8 @@ static void rtas_int_on(PowerPCCPU *cpu, sPAPRMachineState *spapr, ICSState *ics = spapr->ics; uint32_t nr, srcno; + CHECK_EMULATED_XICS_RTAS(spapr, rets); + if ((nargs != 1) || (nret != 1)) { rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR); return; @@ -221,16 +275,25 @@ static void rtas_int_on(PowerPCCPU *cpu, sPAPRMachineState *spapr, } srcno = nr - ics->offset; - ics_simple_write_xive(ics, srcno, ics->irqs[srcno].server, - ics->irqs[srcno].saved_priority, - ics->irqs[srcno].saved_priority); + ics_write_xive(ics, srcno, ics->irqs[srcno].server, + ics->irqs[srcno].saved_priority, + ics->irqs[srcno].saved_priority); rtas_st(rets, 0, RTAS_OUT_SUCCESS); } -void xics_spapr_init(sPAPRMachineState *spapr) +static void ics_spapr_realize(DeviceState *dev, Error **errp) { - /* Registration of global state belongs into realize */ + ICSState *ics = ICS_SPAPR(dev); + ICSStateClass *icsc = ICS_GET_CLASS(ics); + Error *local_err = NULL; + + icsc->parent_realize(dev, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + spapr_rtas_register(RTAS_IBM_SET_XIVE, "ibm,set-xive", rtas_set_xive); spapr_rtas_register(RTAS_IBM_GET_XIVE, "ibm,get-xive", rtas_get_xive); spapr_rtas_register(RTAS_IBM_INT_OFF, "ibm,int-off", rtas_int_off); @@ -244,7 +307,8 @@ void xics_spapr_init(sPAPRMachineState *spapr) spapr_register_hypercall(H_IPOLL, h_ipoll); } -void spapr_dt_xics(int nr_servers, void *fdt, uint32_t phandle) +static void xics_spapr_dt(SpaprInterruptController *intc, uint32_t nr_servers, + void *fdt, uint32_t phandle) { uint32_t interrupt_server_ranges_prop[] = { 0, cpu_to_be32(nr_servers), @@ -264,3 +328,149 @@ void spapr_dt_xics(int nr_servers, void *fdt, uint32_t phandle) _FDT(fdt_setprop_cell(fdt, node, "linux,phandle", phandle)); _FDT(fdt_setprop_cell(fdt, node, "phandle", phandle)); } + +static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc, + PowerPCCPU *cpu, Error **errp) +{ + ICSState *ics = ICS_SPAPR(intc); + Object *obj; + SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu); + + obj = icp_create(OBJECT(cpu), TYPE_ICP, ics->xics, errp); + if (!obj) { + return -1; + } + + spapr_cpu->icp = ICP(obj); + return 0; +} + +static void xics_spapr_cpu_intc_reset(SpaprInterruptController *intc, + PowerPCCPU *cpu) +{ + icp_reset(spapr_cpu_state(cpu)->icp); +} + +static void xics_spapr_cpu_intc_destroy(SpaprInterruptController *intc, + PowerPCCPU *cpu) +{ + SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu); + + icp_destroy(spapr_cpu->icp); + spapr_cpu->icp = NULL; +} + +static int xics_spapr_claim_irq(SpaprInterruptController *intc, int irq, + bool lsi, Error **errp) +{ + ICSState *ics = ICS_SPAPR(intc); + + assert(ics); + assert(ics_valid_irq(ics, irq)); + + if (!ics_irq_free(ics, irq - ics->offset)) { + error_setg(errp, "IRQ %d is not free", irq); + return -EBUSY; + } + + ics_set_irq_type(ics, irq - ics->offset, lsi); + return 0; +} + +static void xics_spapr_free_irq(SpaprInterruptController *intc, int irq) +{ + ICSState *ics = ICS_SPAPR(intc); + uint32_t srcno = irq - ics->offset; + + assert(ics_valid_irq(ics, irq)); + + memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState)); +} + +static void xics_spapr_set_irq(SpaprInterruptController *intc, int irq, int val) +{ + ICSState *ics = ICS_SPAPR(intc); + uint32_t srcno = irq - ics->offset; + + ics_set_irq(ics, srcno, val); +} + +static void xics_spapr_print_info(SpaprInterruptController *intc, Monitor *mon) +{ + ICSState *ics = ICS_SPAPR(intc); + CPUState *cs; + + CPU_FOREACH(cs) { + PowerPCCPU *cpu = POWERPC_CPU(cs); + + icp_pic_print_info(spapr_cpu_state(cpu)->icp, mon); + } + + ics_pic_print_info(ics, mon); +} + +static int xics_spapr_post_load(SpaprInterruptController *intc, int version_id) +{ + if (!kvm_irqchip_in_kernel()) { + CPUState *cs; + CPU_FOREACH(cs) { + PowerPCCPU *cpu = POWERPC_CPU(cs); + icp_resend(spapr_cpu_state(cpu)->icp); + } + } + return 0; +} + +static int xics_spapr_activate(SpaprInterruptController *intc, + uint32_t nr_servers, Error **errp) +{ + if (kvm_enabled()) { + return spapr_irq_init_kvm(xics_kvm_connect, intc, nr_servers, errp); + } + return 0; +} + +static void xics_spapr_deactivate(SpaprInterruptController *intc) +{ + if (kvm_irqchip_in_kernel()) { + xics_kvm_disconnect(intc); + } +} + +static void ics_spapr_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + ICSStateClass *isc = ICS_CLASS(klass); + SpaprInterruptControllerClass *sicc = SPAPR_INTC_CLASS(klass); + + device_class_set_parent_realize(dc, ics_spapr_realize, + &isc->parent_realize); + sicc->activate = xics_spapr_activate; + sicc->deactivate = xics_spapr_deactivate; + sicc->cpu_intc_create = xics_spapr_cpu_intc_create; + sicc->cpu_intc_reset = xics_spapr_cpu_intc_reset; + sicc->cpu_intc_destroy = xics_spapr_cpu_intc_destroy; + sicc->claim_irq = xics_spapr_claim_irq; + sicc->free_irq = xics_spapr_free_irq; + sicc->set_irq = xics_spapr_set_irq; + sicc->print_info = xics_spapr_print_info; + sicc->dt = xics_spapr_dt; + sicc->post_load = xics_spapr_post_load; +} + +static const TypeInfo ics_spapr_info = { + .name = TYPE_ICS_SPAPR, + .parent = TYPE_ICS, + .class_init = ics_spapr_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_SPAPR_INTC }, + { } + }, +}; + +static void xics_spapr_register_types(void) +{ + type_register_static(&ics_spapr_info); +} + +type_init(xics_spapr_register_types) |