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Create spapr_nested.c for most of the nested HV implementation. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
#ifndef HW_SPAPR_NESTED_H
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#define HW_SPAPR_NESTED_H
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#include "qemu/osdep.h"
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#include "target/ppc/cpu.h"
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/*
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* Register state for entering a nested guest with H_ENTER_NESTED.
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* New member must be added at the end.
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*/
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struct kvmppc_hv_guest_state {
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uint64_t version; /* version of this structure layout, must be first */
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uint32_t lpid;
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uint32_t vcpu_token;
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/* These registers are hypervisor privileged (at least for writing) */
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uint64_t lpcr;
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uint64_t pcr;
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uint64_t amor;
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uint64_t dpdes;
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uint64_t hfscr;
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int64_t tb_offset;
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uint64_t dawr0;
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uint64_t dawrx0;
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uint64_t ciabr;
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uint64_t hdec_expiry;
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uint64_t purr;
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uint64_t spurr;
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uint64_t ic;
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uint64_t vtb;
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uint64_t hdar;
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uint64_t hdsisr;
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uint64_t heir;
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uint64_t asdr;
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/* These are OS privileged but need to be set late in guest entry */
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uint64_t srr0;
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uint64_t srr1;
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uint64_t sprg[4];
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uint64_t pidr;
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uint64_t cfar;
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uint64_t ppr;
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/* Version 1 ends here */
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uint64_t dawr1;
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uint64_t dawrx1;
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/* Version 2 ends here */
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};
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/* Latest version of hv_guest_state structure */
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#define HV_GUEST_STATE_VERSION 2
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/* Linux 64-bit powerpc pt_regs struct, used by nested HV */
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struct kvmppc_pt_regs {
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uint64_t gpr[32];
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uint64_t nip;
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uint64_t msr;
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uint64_t orig_gpr3; /* Used for restarting system calls */
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uint64_t ctr;
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uint64_t link;
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uint64_t xer;
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uint64_t ccr;
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uint64_t softe; /* Soft enabled/disabled */
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uint64_t trap; /* Reason for being here */
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uint64_t dar; /* Fault registers */
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uint64_t dsisr; /* on 4xx/Book-E used for ESR */
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uint64_t result; /* Result of a system call */
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};
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/*
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* nested_ppc_state is used to save the host CPU state before switching it to
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* the guest CPU state, to be restored on H_ENTER_NESTED exit.
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*/
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struct nested_ppc_state {
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uint64_t gpr[32];
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uint64_t lr;
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uint64_t ctr;
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uint64_t cfar;
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uint64_t msr;
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uint64_t nip;
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uint32_t cr;
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uint64_t xer;
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uint64_t lpcr;
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uint64_t lpidr;
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uint64_t pidr;
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uint64_t pcr;
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uint64_t dpdes;
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uint64_t hfscr;
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uint64_t srr0;
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uint64_t srr1;
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uint64_t sprg0;
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uint64_t sprg1;
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uint64_t sprg2;
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uint64_t sprg3;
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uint64_t ppr;
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int64_t tb_offset;
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};
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void spapr_register_nested(void);
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void spapr_exit_nested(PowerPCCPU *cpu, int excp);
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#endif /* HW_SPAPR_NESTED_H */
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