/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* KVM/MIPS: MIPS specific KVM APIs
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
* Authors: Sanjay Lal <sanjayl@kymasys.com>
*/
#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/kdebug.h>
#include <linux/module.h>
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
#include <linux/sched/signal.h>
#include <linux/fs.h>
#include <linux/memblock.h>
#include <linux/pgtable.h>
#include <asm/fpu.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
#include <linux/kvm_host.h>
#include "interrupt.h"
#define CREATE_TRACE_POINTS
#include "trace.h"
#ifndef VECTORSPACING
#define VECTORSPACING 0x100 /* for EI/VI mode */
#endif
const struct _kvm_stats_desc kvm_vm_stats_desc[] = {
KVM_GENERIC_VM_STATS()
};
const struct kvm_stats_header kvm_vm_stats_header = {
.name_size = KVM_STATS_NAME_SIZE,
.num_desc = ARRAY_SIZE(kvm_vm_stats_desc),
.id_offset = sizeof(struct kvm_stats_header),
.desc_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE,
.data_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE +
sizeof(kvm_vm_stats_desc),
};
const struct _kvm_stats_desc kvm_vcpu_stats_desc[] = {
KVM_GENERIC_VCPU_STATS(),
STATS_DESC_COUNTER(VCPU, wait_exits),
STATS_DESC_COUNTER(VCPU, cache_exits),
STATS_DESC_COUNTER(VCPU, signal_exits),
STATS_DESC_COUNTER(VCPU, int_exits),
STATS_DESC_COUNTER(VCPU, cop_unusable_exits),
STATS_DESC_COUNTER(VCPU, tlbmod_exits),
STATS_DESC_COUNTER(VCPU, tlbmiss_ld_exits),
STATS_DESC_COUNTER(VCPU, tlbmiss_st_exits),
STATS_DESC_COUNTER(VCPU, addrerr_st_exits),
STATS_DESC_COUNTER(VCPU, addrerr_ld_exits),
STATS_DESC_COUNTER(VCPU, syscall_exits),
STATS_DESC_COUNTER(VCPU, resvd_inst_exits),
STATS_DESC_COUNTER(VCPU, break_inst_exits),
STATS_DESC_COUNTER(VCPU, trap_inst_exits),
STATS_DESC_COUNTER(VCPU, msa_fpe_exits),
STATS_DESC_COUNTER(VCPU, fpe_exits),
STATS_DESC_COUNTER(VCPU, msa_disabled_exits),
STATS_DESC_COUNTER(VCPU, flush_dcache_exits),
STATS_DESC_COUNTER(VCPU, vz_gpsi_exits),
STATS_DESC_COUNTER(VCPU, vz_gsfc_exits),
STATS_DESC_COUNTER(VCPU, vz_hc_exits),
STATS_DESC_COUNTER(VCPU, vz_grr_exits),
STATS_DESC_COUNTER(VCPU, vz_gva_exits),
STATS_DESC_COUNTER(VCPU, vz_ghfc_exits),
STATS_DESC_COUNTER(VCPU, vz_gpa_exits),
STATS_DESC_COUNTER(VCPU, vz_resvd_exits),
#ifdef CONFIG_CPU_LOONGSON64
STATS_DESC_COUNTER(VCPU, vz_cpucfg_exits),
#endif
};
const struct kvm_stats_header kvm_vcpu_stats_header = {
.name_size = KVM_STATS_NAME_SIZE,
.num_desc = ARRAY_SIZE(kvm_vcpu_stats_desc),
.id_offset = sizeof(struct kvm_stats_header),
.desc_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE,
.data_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE +
sizeof(kvm_vcpu_stats_desc),
};
bool kvm_trace_guest_mode_change;
int kvm_guest_mode_change_trace_reg(void)
{
kvm_trace_guest_mode_change = true;
return 0;
}
void kvm_guest_mode_change_trace_unreg(void)
{
kvm_trace_guest_mode_change = false;
}
/*
* XXXKYMA: We are simulatoring a processor that has the WII bit set in
* Config7, so we are "runnable" if interrupts are pending
*/
int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
{
return !!(vcpu->arch.pending_exceptions);
}
bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
{
return false;
}
int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
{
return 1;
}
int kvm_arch_enable_virtualization_cpu(void)
{
return kvm_mips_callbacks->enable_virtualization_cpu();
}
void kvm_arch_disable_virtualization_cpu(void)
{
kvm_mips_callbacks->dis
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