kvm_book3s_asm.h

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright SUSE Linux Products GmbH 2009
 *
 * Authors: Alexander Graf <[email protected]>
 */

#ifndef __ASM_KVM_BOOK3S_ASM_H__
#define __ASM_KVM_BOOK3S_ASM_H__

#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__ */

/*
 * 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;
    u8 in_guest;
    u8 restore_hid5;
    u8 napping;

#ifdef CONFIG_KVM_BOOK3S_64_HV
    u8 hwthread_req;
    u8 hwthread_state;

    struct kvm_vcpu *kvm_vcpu;
    struct kvmppc_vcore *kvm_vcore;
    unsigned long xics_phys;
    u64 dabr;
    u64 host_mmcr[3];
    u32 host_pmc[8];
    u64 host_purr;
    u64 host_spurr;
    u64 host_dscr;
    u64 dec_expires;
#endif
};

struct kvmppc_book3s_shadow_vcpu {
    ulong gpr[14];
    u32 cr;
    u32 xer;

    u32 fault_dsisr;
    u32 last_inst;
    ulong ctr;
    ulong lr;
    ulong pc;
    ulong shadow_srr1;
    ulong fault_dar;

#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 */
#endif
};

#endif /*__ASSEMBLY__ */

/* Values for kvm_state */
#define KVM_HWTHREAD_IN_KERNEL  0
#define KVM_HWTHREAD_IN_NAP 1
#define KVM_HWTHREAD_IN_KVM 2

#endif /* __ASM_KVM_BOOK3S_ASM_H__ */