7718375584
xics_get_qirq() is only used by the sPAPR machine. Let's move it there and change its name to reflect its scope. It will be useful for XIVE support which will use its own set of qirqs. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
214 lines
6.5 KiB
C
214 lines
6.5 KiB
C
/*
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* QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
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*
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* PAPR Virtualized Interrupt System, aka ICS/ICP aka xics
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*
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* Copyright (c) 2010,2011 David Gibson, IBM Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#ifndef XICS_H
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#define XICS_H
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#include "hw/qdev.h"
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#include "target/ppc/cpu-qom.h"
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#define XICS_IPI 0x2
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#define XICS_BUID 0x1
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#define XICS_IRQ_BASE (XICS_BUID << 12)
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/*
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* We currently only support one BUID which is our interrupt base
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* (the kernel implementation supports more but we don't exploit
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* that yet)
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*/
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typedef struct ICPStateClass ICPStateClass;
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typedef struct ICPState ICPState;
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typedef struct PnvICPState PnvICPState;
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typedef struct ICSStateClass ICSStateClass;
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typedef struct ICSState ICSState;
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typedef struct ICSIRQState ICSIRQState;
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typedef struct XICSFabric XICSFabric;
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#define TYPE_ICP "icp"
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#define ICP(obj) OBJECT_CHECK(ICPState, (obj), TYPE_ICP)
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#define TYPE_KVM_ICP "icp-kvm"
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#define KVM_ICP(obj) OBJECT_CHECK(ICPState, (obj), TYPE_KVM_ICP)
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#define TYPE_PNV_ICP "pnv-icp"
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#define PNV_ICP(obj) OBJECT_CHECK(PnvICPState, (obj), TYPE_PNV_ICP)
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#define ICP_CLASS(klass) \
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OBJECT_CLASS_CHECK(ICPStateClass, (klass), TYPE_ICP)
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#define ICP_GET_CLASS(obj) \
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OBJECT_GET_CLASS(ICPStateClass, (obj), TYPE_ICP)
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struct ICPStateClass {
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DeviceClass parent_class;
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void (*realize)(ICPState *icp, Error **errp);
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void (*pre_save)(ICPState *icp);
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int (*post_load)(ICPState *icp, int version_id);
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void (*reset)(ICPState *icp);
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void (*synchronize_state)(ICPState *icp);
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};
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struct ICPState {
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/*< private >*/
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DeviceState parent_obj;
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/*< public >*/
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CPUState *cs;
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ICSState *xirr_owner;
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uint32_t xirr;
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uint8_t pending_priority;
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uint8_t mfrr;
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qemu_irq output;
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XICSFabric *xics;
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};
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#define ICP_PROP_XICS "xics"
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#define ICP_PROP_CPU "cpu"
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struct PnvICPState {
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ICPState parent_obj;
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MemoryRegion mmio;
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uint32_t links[3];
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};
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#define TYPE_ICS_BASE "ics-base"
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#define ICS_BASE(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS_BASE)
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/* Retain ics for sPAPR for migration from existing sPAPR guests */
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#define TYPE_ICS_SIMPLE "ics"
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#define ICS_SIMPLE(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS_SIMPLE)
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#define TYPE_ICS_KVM "icskvm"
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#define ICS_KVM(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS_KVM)
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#define ICS_BASE_CLASS(klass) \
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OBJECT_CLASS_CHECK(ICSStateClass, (klass), TYPE_ICS_BASE)
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#define ICS_BASE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(ICSStateClass, (obj), TYPE_ICS_BASE)
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struct ICSStateClass {
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DeviceClass parent_class;
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void (*realize)(ICSState *s, Error **errp);
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void (*pre_save)(ICSState *s);
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int (*post_load)(ICSState *s, int version_id);
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void (*reject)(ICSState *s, uint32_t irq);
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void (*resend)(ICSState *s);
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void (*eoi)(ICSState *s, uint32_t irq);
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void (*synchronize_state)(ICSState *s);
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};
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struct ICSState {
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/*< private >*/
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DeviceState parent_obj;
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/*< public >*/
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uint32_t nr_irqs;
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uint32_t offset;
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qemu_irq *qirqs;
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ICSIRQState *irqs;
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XICSFabric *xics;
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};
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#define ICS_PROP_XICS "xics"
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static inline bool ics_valid_irq(ICSState *ics, uint32_t nr)
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{
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return (ics->offset != 0) && (nr >= ics->offset)
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&& (nr < (ics->offset + ics->nr_irqs));
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}
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struct ICSIRQState {
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uint32_t server;
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uint8_t priority;
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uint8_t saved_priority;
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#define XICS_STATUS_ASSERTED 0x1
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#define XICS_STATUS_SENT 0x2
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#define XICS_STATUS_REJECTED 0x4
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#define XICS_STATUS_MASKED_PENDING 0x8
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#define XICS_STATUS_PRESENTED 0x10
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#define XICS_STATUS_QUEUED 0x20
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uint8_t status;
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/* (flags & XICS_FLAGS_IRQ_MASK) == 0 means the interrupt is not allocated */
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#define XICS_FLAGS_IRQ_LSI 0x1
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#define XICS_FLAGS_IRQ_MSI 0x2
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#define XICS_FLAGS_IRQ_MASK 0x3
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uint8_t flags;
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};
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struct XICSFabric {
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Object parent;
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};
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#define TYPE_XICS_FABRIC "xics-fabric"
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#define XICS_FABRIC(obj) \
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OBJECT_CHECK(XICSFabric, (obj), TYPE_XICS_FABRIC)
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#define XICS_FABRIC_CLASS(klass) \
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OBJECT_CLASS_CHECK(XICSFabricClass, (klass), TYPE_XICS_FABRIC)
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#define XICS_FABRIC_GET_CLASS(obj) \
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OBJECT_GET_CLASS(XICSFabricClass, (obj), TYPE_XICS_FABRIC)
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typedef struct XICSFabricClass {
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InterfaceClass parent;
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ICSState *(*ics_get)(XICSFabric *xi, int irq);
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void (*ics_resend)(XICSFabric *xi);
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ICPState *(*icp_get)(XICSFabric *xi, int server);
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} XICSFabricClass;
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#define XICS_IRQS_SPAPR 1024
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void spapr_dt_xics(int nr_servers, void *fdt, uint32_t phandle);
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ICPState *xics_icp_get(XICSFabric *xi, int server);
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/* Internal XICS interfaces */
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void icp_set_cppr(ICPState *icp, uint8_t cppr);
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void icp_set_mfrr(ICPState *icp, uint8_t mfrr);
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uint32_t icp_accept(ICPState *ss);
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uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr);
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void icp_eoi(ICPState *icp, uint32_t xirr);
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void ics_simple_write_xive(ICSState *ics, int nr, int server,
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uint8_t priority, uint8_t saved_priority);
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void ics_set_irq_type(ICSState *ics, int srcno, bool lsi);
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void icp_pic_print_info(ICPState *icp, Monitor *mon);
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void ics_pic_print_info(ICSState *ics, Monitor *mon);
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void ics_resend(ICSState *ics);
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void icp_resend(ICPState *ss);
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typedef struct sPAPRMachineState sPAPRMachineState;
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int xics_kvm_init(sPAPRMachineState *spapr, Error **errp);
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void xics_spapr_init(sPAPRMachineState *spapr);
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Object *icp_create(Object *cpu, const char *type, XICSFabric *xi,
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Error **errp);
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#endif /* XICS_H */
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