#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"
-#include "qapi/error.h"
/*
* 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;
}
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;
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)
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;
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)
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;
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)
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;
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)
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;
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
}
-int xics_spapr_init(sPAPRMachineState *spapr, Error **errp)
+void xics_spapr_init(SpaprMachineState *spapr)
{
- /* Registration of global state belongs into realize */
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);
spapr_register_hypercall(H_XIRR_X, h_xirr_x);
spapr_register_hypercall(H_EOI, h_eoi);
spapr_register_hypercall(H_IPOLL, h_ipoll);
- return 0;
-}
-
-#define ICS_IRQ_FREE(ics, srcno) \
- (!((ics)->irqs[(srcno)].flags & (XICS_FLAGS_IRQ_MASK)))
-
-static int ics_find_free_block(ICSState *ics, int num, int alignnum)
-{
- int first, i;
-
- for (first = 0; first < ics->nr_irqs; first += alignnum) {
- if (num > (ics->nr_irqs - first)) {
- return -1;
- }
- for (i = first; i < first + num; ++i) {
- if (!ICS_IRQ_FREE(ics, i)) {
- break;
- }
- }
- if (i == (first + num)) {
- return first;
- }
- }
-
- return -1;
-}
-
-int spapr_ics_alloc(ICSState *ics, int irq_hint, bool lsi, Error **errp)
-{
- int irq;
-
- if (!ics) {
- return -1;
- }
- if (irq_hint) {
- if (!ICS_IRQ_FREE(ics, irq_hint - ics->offset)) {
- error_setg(errp, "can't allocate IRQ %d: already in use", irq_hint);
- return -1;
- }
- irq = irq_hint;
- } else {
- irq = ics_find_free_block(ics, 1, 1);
- if (irq < 0) {
- error_setg(errp, "can't allocate IRQ: no IRQ left");
- return -1;
- }
- irq += ics->offset;
- }
-
- ics_set_irq_type(ics, irq - ics->offset, lsi);
- trace_xics_alloc(irq);
-
- return irq;
-}
-
-/*
- * Allocate block of consecutive IRQs, and return the number of the first IRQ in
- * the block. If align==true, aligns the first IRQ number to num.
- */
-int spapr_ics_alloc_block(ICSState *ics, int num, bool lsi,
- bool align, Error **errp)
-{
- int i, first = -1;
-
- if (!ics) {
- return -1;
- }
-
- /*
- * MSIMesage::data is used for storing VIRQ so
- * it has to be aligned to num to support multiple
- * MSI vectors. MSI-X is not affected by this.
- * The hint is used for the first IRQ, the rest should
- * be allocated continuously.
- */
- if (align) {
- assert((num == 1) || (num == 2) || (num == 4) ||
- (num == 8) || (num == 16) || (num == 32));
- first = ics_find_free_block(ics, num, num);
- } else {
- first = ics_find_free_block(ics, num, 1);
- }
- if (first < 0) {
- error_setg(errp, "can't find a free %d-IRQ block", num);
- return -1;
- }
-
- if (first >= 0) {
- for (i = first; i < first + num; ++i) {
- ics_set_irq_type(ics, i, lsi);
- }
- }
- first += ics->offset;
-
- trace_xics_alloc_block(first, num, lsi, align);
-
- return first;
-}
-
-static void ics_free(ICSState *ics, int srcno, int num)
-{
- int i;
-
- for (i = srcno; i < srcno + num; ++i) {
- if (ICS_IRQ_FREE(ics, i)) {
- trace_xics_ics_free_warn(0, i + ics->offset);
- }
- memset(&ics->irqs[i], 0, sizeof(ICSIRQState));
- }
-}
-
-void spapr_ics_free(ICSState *ics, int irq, int num)
-{
- if (ics_valid_irq(ics, irq)) {
- trace_xics_ics_free(0, irq, num);
- ics_free(ics, irq - ics->offset, num);
- }
}
-void spapr_dt_xics(int nr_servers, void *fdt, uint32_t phandle)
+void spapr_dt_xics(SpaprMachineState *spapr, uint32_t nr_servers, void *fdt,
+ uint32_t phandle)
{
uint32_t interrupt_server_ranges_prop[] = {
0, cpu_to_be32(nr_servers),
};
int node;
- _FDT(node = fdt_add_subnode(fdt, 0, "interrupt-controller"));
+ _FDT(node = fdt_add_subnode(fdt, 0, XICS_NODENAME));
_FDT(fdt_setprop_string(fdt, node, "device_type",
"PowerPC-External-Interrupt-Presentation"));
projects / mirror_qemu.git / blobdiff