diff options
Diffstat (limited to 'arch/mips/kvm/trap_emul.c')
| -rw-r--r-- | arch/mips/kvm/trap_emul.c | 35 |
1 files changed, 6 insertions, 29 deletions
diff --git a/arch/mips/kvm/trap_emul.c b/arch/mips/kvm/trap_emul.c index 2b20b7de493e..edda8f039026 100644 --- a/arch/mips/kvm/trap_emul.c +++ b/arch/mips/kvm/trap_emul.c @@ -714,35 +714,15 @@ static int kvm_trap_emul_vcpu_load(struct kvm_vcpu *vcpu, int cpu) struct mm_struct *user_mm = &vcpu->arch.guest_user_mm; struct mm_struct *mm; - /* Allocate new kernel and user ASIDs if needed */ - - if ((cpu_context(cpu, kern_mm) ^ asid_cache(cpu)) & - asid_version_mask(cpu)) { - get_new_mmu_context(kern_mm, cpu); - - kvm_debug("[%d]: cpu_context: %#lx\n", cpu, - cpu_context(cpu, current->mm)); - kvm_debug("[%d]: Allocated new ASID for Guest Kernel: %#lx\n", - cpu, cpu_context(cpu, kern_mm)); - } - - if ((cpu_context(cpu, user_mm) ^ asid_cache(cpu)) & - asid_version_mask(cpu)) { - get_new_mmu_context(user_mm, cpu); - - kvm_debug("[%d]: cpu_context: %#lx\n", cpu, - cpu_context(cpu, current->mm)); - kvm_debug("[%d]: Allocated new ASID for Guest User: %#lx\n", - cpu, cpu_context(cpu, user_mm)); - } - /* - * Were we in guest context? If so then the pre-empted ASID is - * no longer valid, we need to set it to what it should be based - * on the mode of the Guest (Kernel/User) + * Were we in guest context? If so, restore the appropriate ASID based + * on the mode of the Guest (Kernel/User). */ 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); kvm_mips_suspend_mm(cpu); @@ -759,11 +739,8 @@ 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))) { - kvm_debug("%s: Dropping MMU Context: %#lx\n", __func__, - cpu_context(cpu, current->mm)); + 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); kvm_mips_resume_mm(cpu); |