diff options
Diffstat (limited to 'arch/mips/kvm')
| -rw-r--r-- | arch/mips/kvm/emulate.c | 8 | ||||
| -rw-r--r-- | arch/mips/kvm/mips.c | 5 | ||||
| -rw-r--r-- | arch/mips/kvm/trap_emul.c | 30 | ||||
| -rw-r--r-- | arch/mips/kvm/vz.c | 8 |
4 files changed, 21 insertions, 30 deletions
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c index ec9ed23bca7f..0074427b04fb 100644 --- a/arch/mips/kvm/emulate.c +++ b/arch/mips/kvm/emulate.c @@ -1016,10 +1016,10 @@ static void kvm_mips_change_entryhi(struct kvm_vcpu *vcpu, */ preempt_disable(); cpu = smp_processor_id(); - get_new_mmu_context(kern_mm, cpu); + get_new_mmu_context(kern_mm); for_each_possible_cpu(i) if (i != cpu) - cpu_context(i, kern_mm) = 0; + set_cpu_context(i, kern_mm, 0); preempt_enable(); } kvm_write_c0_guest_entryhi(cop0, entryhi); @@ -1090,8 +1090,8 @@ static void kvm_mips_invalidate_guest_tlb(struct kvm_vcpu *vcpu, if (i == cpu) continue; if (user) - cpu_context(i, user_mm) = 0; - cpu_context(i, kern_mm) = 0; + set_cpu_context(i, user_mm, 0); + set_cpu_context(i, kern_mm, 0); } preempt_enable(); diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 3734cd58895e..6d0517ac18e5 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1723,6 +1723,11 @@ static int __init kvm_mips_init(void) { int ret; + if (cpu_has_mmid) { + pr_warn("KVM does not yet support MMIDs. KVM Disabled\n"); + return -EOPNOTSUPP; + } + ret = kvm_mips_entry_setup(); if (ret) return ret; diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c index 6a0d7040d882..73daa6ad33af 100644 --- a/arch/mips/kvm/trap_emul.c +++ b/arch/mips/kvm/trap_emul.c @@ -1056,11 +1056,7 @@ static int kvm_trap_emul_vcpu_load(struct kvm_vcpu *vcpu, int cpu) */ if (current->flags & PF_VCPU) { mm = KVM_GUEST_KERNEL_MODE(vcpu) ? kern_mm : user_mm; - if ((cpu_context(cpu, mm) ^ asid_cache(cpu)) & - asid_version_mask(cpu)) - get_new_mmu_context(mm, cpu); - write_c0_entryhi(cpu_asid(cpu, mm)); - TLBMISS_HANDLER_SETUP_PGD(mm->pgd); + check_switch_mmu_context(mm); kvm_mips_suspend_mm(cpu); ehb(); } @@ -1074,11 +1070,7 @@ static int kvm_trap_emul_vcpu_put(struct kvm_vcpu *vcpu, int cpu) if (current->flags & PF_VCPU) { /* Restore normal Linux process memory map */ - if (((cpu_context(cpu, current->mm) ^ asid_cache(cpu)) & - asid_version_mask(cpu))) - get_new_mmu_context(current->mm, cpu); - write_c0_entryhi(cpu_asid(cpu, current->mm)); - TLBMISS_HANDLER_SETUP_PGD(current->mm->pgd); + check_switch_mmu_context(current->mm); kvm_mips_resume_mm(cpu); ehb(); } @@ -1106,14 +1098,14 @@ static void kvm_trap_emul_check_requests(struct kvm_vcpu *vcpu, int cpu, kvm_mips_flush_gva_pt(kern_mm->pgd, KMF_GPA | KMF_KERN); kvm_mips_flush_gva_pt(user_mm->pgd, KMF_GPA | KMF_USER); for_each_possible_cpu(i) { - cpu_context(i, kern_mm) = 0; - cpu_context(i, user_mm) = 0; + set_cpu_context(i, kern_mm, 0); + set_cpu_context(i, user_mm, 0); } /* Generate new ASID for current mode */ if (reload_asid) { mm = KVM_GUEST_KERNEL_MODE(vcpu) ? kern_mm : user_mm; - get_new_mmu_context(mm, cpu); + get_new_mmu_context(mm); htw_stop(); write_c0_entryhi(cpu_asid(cpu, mm)); TLBMISS_HANDLER_SETUP_PGD(mm->pgd); @@ -1219,7 +1211,7 @@ static void kvm_trap_emul_vcpu_reenter(struct kvm_run *run, if (gasid != vcpu->arch.last_user_gasid) { kvm_mips_flush_gva_pt(user_mm->pgd, KMF_USER); for_each_possible_cpu(i) - cpu_context(i, user_mm) = 0; + set_cpu_context(i, user_mm, 0); vcpu->arch.last_user_gasid = gasid; } } @@ -1228,9 +1220,7 @@ static void kvm_trap_emul_vcpu_reenter(struct kvm_run *run, * Check if ASID is stale. This may happen due to a TLB flush request or * a lazy user MM invalidation. */ - if ((cpu_context(cpu, mm) ^ asid_cache(cpu)) & - asid_version_mask(cpu)) - get_new_mmu_context(mm, cpu); + check_mmu_context(mm); } static int kvm_trap_emul_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu) @@ -1266,11 +1256,7 @@ static int kvm_trap_emul_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu) cpu = smp_processor_id(); /* Restore normal Linux process memory map */ - if (((cpu_context(cpu, current->mm) ^ asid_cache(cpu)) & - asid_version_mask(cpu))) - get_new_mmu_context(current->mm, cpu); - write_c0_entryhi(cpu_asid(cpu, current->mm)); - TLBMISS_HANDLER_SETUP_PGD(current->mm->pgd); + check_switch_mmu_context(current->mm); kvm_mips_resume_mm(cpu); htw_start(); diff --git a/arch/mips/kvm/vz.c b/arch/mips/kvm/vz.c index 74805035edc8..dde20887a70d 100644 --- a/arch/mips/kvm/vz.c +++ b/arch/mips/kvm/vz.c @@ -2454,10 +2454,10 @@ static void kvm_vz_vcpu_load_tlb(struct kvm_vcpu *vcpu, int cpu) * Root ASID dealiases guest GPA mappings in the root TLB. * Allocate new root ASID if needed. */ - if (cpumask_test_and_clear_cpu(cpu, &kvm->arch.asid_flush_mask) - || (cpu_context(cpu, gpa_mm) ^ asid_cache(cpu)) & - asid_version_mask(cpu)) - get_new_mmu_context(gpa_mm, cpu); + if (cpumask_test_and_clear_cpu(cpu, &kvm->arch.asid_flush_mask)) + get_new_mmu_context(gpa_mm); + else + check_mmu_context(gpa_mm); } } |