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