arch/powerpc/include/asm/kvm_book3s_asm.h

Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/kvm_book3s_asm.h

File Facts

System
Linux kernel
Corpus path
arch/powerpc/include/asm/kvm_book3s_asm.h
Extension
.h
Size
3651 bytes
Lines
161
Domain
Architecture Layer
Bucket
arch/powerpc
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

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 /*__ASSEMBLER__ */

/* Values for kvm_state */

Annotation

Implementation Notes