175 lines
3.9 KiB
C
175 lines
3.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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*
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* Copyright SUSE Linux Products GmbH 2009
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*
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* Authors: Alexander Graf <agraf@suse.de>
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*/
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#ifndef __ASM_KVM_BOOK3S_ASM_H__
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#define __ASM_KVM_BOOK3S_ASM_H__
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/* XICS ICP register offsets */
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#define XICS_XIRR 4
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#define XICS_MFRR 0xc
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#define XICS_IPI 2 /* interrupt source # for IPIs */
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/* LPIDs we support with this build -- runtime limit may be lower */
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#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)
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/* Maximum number of threads per physical core */
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#define MAX_SMT_THREADS 8
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/* Maximum number of subcores per physical core */
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#define MAX_SUBCORES 4
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#ifdef __ASSEMBLY__
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#ifdef CONFIG_KVM_BOOK3S_HANDLER
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#include <asm/kvm_asm.h>
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.macro DO_KVM intno
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.if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
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(\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
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(\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
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(\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
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(\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
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(\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
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(\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
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(\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
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(\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
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(\intno == BOOK3S_INTERRUPT_PROGRAM) || \
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(\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
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(\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
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(\intno == BOOK3S_INTERRUPT_SYSCALL) || \
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(\intno == BOOK3S_INTERRUPT_TRACE) || \
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(\intno == BOOK3S_INTERRUPT_PERFMON) || \
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(\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
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(\intno == BOOK3S_INTERRUPT_VSX)
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b kvmppc_trampoline_\intno
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kvmppc_resume_\intno:
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.endif
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.endm
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#else
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.macro DO_KVM intno
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.endm
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#endif /* CONFIG_KVM_BOOK3S_HANDLER */
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#else /*__ASSEMBLY__ */
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struct kvmppc_vcore;
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/* Struct used for coordinating micro-threading (split-core) mode changes */
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struct kvm_split_mode {
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unsigned long rpr;
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unsigned long pmmar;
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unsigned long ldbar;
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u8 subcore_size;
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u8 do_nap;
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u8 napped[MAX_SMT_THREADS];
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struct kvmppc_vcore *vc[MAX_SUBCORES];
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/* Bits for changing lpcr on P9 */
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unsigned long lpcr_req;
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unsigned long lpidr_req;
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unsigned long host_lpcr;
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u32 do_set;
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u32 do_restore;
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union {
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u32 allphases;
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u8 phase[4];
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} lpcr_sync;
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};
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/*
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* This struct goes in the PACA on 64-bit processors. It is used
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* to store host state that needs to be saved when we enter a guest
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* and restored when we exit, but isn't specific to any particular
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* guest or vcpu. It also has some scratch fields used by the guest
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* exit code.
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*/
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struct kvmppc_host_state {
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ulong host_r1;
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ulong host_r2;
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ulong host_msr;
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ulong vmhandler;
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ulong scratch0;
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ulong scratch1;
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ulong scratch2;
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u8 in_guest;
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u8 restore_hid5;
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u8 napping;
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#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
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u8 hwthread_req;
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u8 hwthread_state;
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u8 host_ipi;
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u8 ptid; /* thread number within subcore when split */
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u8 tid; /* thread number within whole core */
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u8 fake_suspend;
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struct kvm_vcpu *kvm_vcpu;
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struct kvmppc_vcore *kvm_vcore;
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void __iomem *xics_phys;
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void __iomem *xive_tima_phys;
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void __iomem *xive_tima_virt;
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u32 saved_xirr;
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u64 dabr;
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u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */
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u32 host_pmc[8];
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u64 host_purr;
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u64 host_spurr;
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u64 host_dscr;
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u64 dec_expires;
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struct kvm_split_mode *kvm_split_mode;
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#endif
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#ifdef CONFIG_PPC_BOOK3S_64
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u64 cfar;
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u64 ppr;
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u64 host_fscr;
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#endif
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};
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struct kvmppc_book3s_shadow_vcpu {
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bool in_use;
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ulong gpr[14];
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u32 cr;
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ulong xer;
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ulong ctr;
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ulong lr;
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ulong pc;
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ulong shadow_srr1;
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ulong fault_dar;
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u32 fault_dsisr;
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u32 last_inst;
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#ifdef CONFIG_PPC_BOOK3S_32
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u32 sr[16]; /* Guest SRs */
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struct kvmppc_host_state hstate;
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#endif
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#ifdef CONFIG_PPC_BOOK3S_64
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u8 slb_max; /* highest used guest slb entry */
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struct {
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u64 esid;
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u64 vsid;
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} slb[64]; /* guest SLB */
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u64 shadow_fscr;
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#endif
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};
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#endif /*__ASSEMBLY__ */
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/* Values for kvm_state */
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#define KVM_HWTHREAD_IN_KERNEL 0
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#define KVM_HWTHREAD_IN_IDLE 1
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#define KVM_HWTHREAD_IN_KVM 2
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#endif /* __ASM_KVM_BOOK3S_ASM_H__ */
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