mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 16:38:31 +00:00
9cc5e9538a
The host shadow mmu code needs to get initialized. It needs to fetch a segment it can use to put shadow PTEs into. That initialization code was in generic code, which is icky. Let's move it over to the respective MMU file. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
145 lines
5.4 KiB
C
145 lines
5.4 KiB
C
/*
|
|
* 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 IBM Corp. 2008
|
|
*
|
|
* Authors: Hollis Blanchard <hollisb@us.ibm.com>
|
|
*/
|
|
|
|
#ifndef __POWERPC_KVM_PPC_H__
|
|
#define __POWERPC_KVM_PPC_H__
|
|
|
|
/* This file exists just so we can dereference kvm_vcpu, avoiding nested header
|
|
* dependencies. */
|
|
|
|
#include <linux/mutex.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/types.h>
|
|
#include <linux/kvm_types.h>
|
|
#include <linux/kvm_host.h>
|
|
#ifdef CONFIG_PPC_BOOK3S
|
|
#include <asm/kvm_book3s.h>
|
|
#else
|
|
#include <asm/kvm_booke.h>
|
|
#endif
|
|
|
|
enum emulation_result {
|
|
EMULATE_DONE, /* no further processing */
|
|
EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
|
|
EMULATE_DO_DCR, /* kvm_run filled with DCR request */
|
|
EMULATE_FAIL, /* can't emulate this instruction */
|
|
EMULATE_AGAIN, /* something went wrong. go again */
|
|
};
|
|
|
|
extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
|
|
extern char kvmppc_handlers_start[];
|
|
extern unsigned long kvmppc_handler_len;
|
|
extern void kvmppc_handler_highmem(void);
|
|
|
|
extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
|
|
unsigned int rt, unsigned int bytes,
|
|
int is_bigendian);
|
|
extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
|
|
unsigned int rt, unsigned int bytes,
|
|
int is_bigendian);
|
|
extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
|
|
u64 val, unsigned int bytes, int is_bigendian);
|
|
|
|
extern int kvmppc_emulate_instruction(struct kvm_run *run,
|
|
struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
|
|
|
|
/* Core-specific hooks */
|
|
|
|
extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
|
|
unsigned int gtlb_idx);
|
|
extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
|
|
extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
|
|
extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
|
|
extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
|
|
extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
|
|
gva_t eaddr);
|
|
extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
|
|
|
|
extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
|
|
unsigned int id);
|
|
extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_core_check_processor_compat(void);
|
|
extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
|
|
struct kvm_translation *tr);
|
|
|
|
extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
|
|
extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
|
|
|
|
extern void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu);
|
|
extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
|
|
extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
|
|
extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
|
|
struct kvm_interrupt *irq);
|
|
extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu,
|
|
struct kvm_interrupt *irq);
|
|
|
|
extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
|
|
unsigned int op, int *advance);
|
|
extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
|
|
extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
|
|
|
|
extern int kvmppc_booke_init(void);
|
|
extern void kvmppc_booke_exit(void);
|
|
|
|
extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
|
|
|
|
/*
|
|
* Cuts out inst bits with ordering according to spec.
|
|
* That means the leftmost bit is zero. All given bits are included.
|
|
*/
|
|
static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
|
|
{
|
|
u32 r;
|
|
u32 mask;
|
|
|
|
BUG_ON(msb > lsb);
|
|
|
|
mask = (1 << (lsb - msb + 1)) - 1;
|
|
r = (inst >> (63 - lsb)) & mask;
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* Replaces inst bits with ordering according to spec.
|
|
*/
|
|
static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
|
|
{
|
|
u32 r;
|
|
u32 mask;
|
|
|
|
BUG_ON(msb > lsb);
|
|
|
|
mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
|
|
r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
|
|
|
|
return r;
|
|
}
|
|
|
|
#endif /* __POWERPC_KVM_PPC_H__ */
|