From: Aneesh Kumar K.V Date: Fri, 20 Mar 2015 09:39:42 +0000 (+1100) Subject: KVM: PPC: Book3S HV: Remove RMA-related variables from code X-Git-Tag: firefly_0821_release~176^2~1860^2~1^2~17 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=31037ecad275e9ad9bc671c34f72b495cf708ca3;p=firefly-linux-kernel-4.4.55.git KVM: PPC: Book3S HV: Remove RMA-related variables from code We don't support real-mode areas now that 970 support is removed. Remove the remaining details of rma from the code. Also rename rma_setup_done to hpte_setup_done to better reflect the changes. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Paul Mackerras Signed-off-by: Alexander Graf --- diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 8ef05121d3cd..015773f5bb33 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -228,9 +228,8 @@ struct kvm_arch { int tlbie_lock; unsigned long lpcr; unsigned long rmor; - struct kvm_rma_info *rma; unsigned long vrma_slb_v; - int rma_setup_done; + int hpte_setup_done; u32 hpt_order; atomic_t vcpus_running; u32 online_vcores; diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 534acb3c6c3d..dbf127168ca4 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -116,12 +116,12 @@ long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp) long order; mutex_lock(&kvm->lock); - if (kvm->arch.rma_setup_done) { - kvm->arch.rma_setup_done = 0; - /* order rma_setup_done vs. vcpus_running */ + if (kvm->arch.hpte_setup_done) { + kvm->arch.hpte_setup_done = 0; + /* order hpte_setup_done vs. vcpus_running */ smp_mb(); if (atomic_read(&kvm->arch.vcpus_running)) { - kvm->arch.rma_setup_done = 1; + kvm->arch.hpte_setup_done = 1; goto out; } } @@ -1339,20 +1339,20 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf, unsigned long tmp[2]; ssize_t nb; long int err, ret; - int rma_setup; + int hpte_setup; if (!access_ok(VERIFY_READ, buf, count)) return -EFAULT; /* lock out vcpus from running while we're doing this */ mutex_lock(&kvm->lock); - rma_setup = kvm->arch.rma_setup_done; - if (rma_setup) { - kvm->arch.rma_setup_done = 0; /* temporarily */ - /* order rma_setup_done vs. vcpus_running */ + hpte_setup = kvm->arch.hpte_setup_done; + if (hpte_setup) { + kvm->arch.hpte_setup_done = 0; /* temporarily */ + /* order hpte_setup_done vs. vcpus_running */ smp_mb(); if (atomic_read(&kvm->arch.vcpus_running)) { - kvm->arch.rma_setup_done = 1; + kvm->arch.hpte_setup_done = 1; mutex_unlock(&kvm->lock); return -EBUSY; } @@ -1405,7 +1405,7 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf, "r=%lx\n", ret, i, v, r); goto out; } - if (!rma_setup && is_vrma_hpte(v)) { + if (!hpte_setup && is_vrma_hpte(v)) { unsigned long psize = hpte_base_page_size(v, r); unsigned long senc = slb_pgsize_encoding(psize); unsigned long lpcr; @@ -1414,7 +1414,7 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf, (VRMA_VSID << SLB_VSID_SHIFT_1T); lpcr = senc << (LPCR_VRMASD_SH - 4); kvmppc_update_lpcr(kvm, lpcr, LPCR_VRMASD); - rma_setup = 1; + hpte_setup = 1; } ++i; hptp += 2; @@ -1430,9 +1430,9 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf, } out: - /* Order HPTE updates vs. rma_setup_done */ + /* Order HPTE updates vs. hpte_setup_done */ smp_wmb(); - kvm->arch.rma_setup_done = rma_setup; + kvm->arch.hpte_setup_done = hpte_setup; mutex_unlock(&kvm->lock); if (err) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index b9c11a3abcb2..dde14fd64d8e 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2044,11 +2044,11 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu) } atomic_inc(&vcpu->kvm->arch.vcpus_running); - /* Order vcpus_running vs. rma_setup_done, see kvmppc_alloc_reset_hpt */ + /* Order vcpus_running vs. hpte_setup_done, see kvmppc_alloc_reset_hpt */ smp_mb(); /* On the first time here, set up HTAB and VRMA */ - if (!vcpu->kvm->arch.rma_setup_done) { + if (!vcpu->kvm->arch.hpte_setup_done) { r = kvmppc_hv_setup_htab_rma(vcpu); if (r) goto out; @@ -2250,7 +2250,7 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu) int srcu_idx; mutex_lock(&kvm->lock); - if (kvm->arch.rma_setup_done) + if (kvm->arch.hpte_setup_done) goto out; /* another vcpu beat us to it */ /* Allocate hashed page table (if not done already) and reset it */ @@ -2301,9 +2301,9 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu) kvmppc_update_lpcr(kvm, lpcr, LPCR_VRMASD); - /* Order updates to kvm->arch.lpcr etc. vs. rma_setup_done */ + /* Order updates to kvm->arch.lpcr etc. vs. hpte_setup_done */ smp_wmb(); - kvm->arch.rma_setup_done = 1; + kvm->arch.hpte_setup_done = 1; err = 0; out_srcu: srcu_read_unlock(&kvm->srcu, srcu_idx);