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-rw-r--r--arch/powerpc/kvm/e500_tlb.c800
1 files changed, 552 insertions, 248 deletions
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index b18fe353397d..13c432ea2fa8 100644
--- a/arch/powerpc/kvm/e500_tlb.c
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -28,8 +28,196 @@
#define to_htlb1_esel(esel) (tlb1_entry_num - (esel) - 1)
+struct id {
+ unsigned long val;
+ struct id **pentry;
+};
+
+#define NUM_TIDS 256
+
+/*
+ * This table provide mappings from:
+ * (guestAS,guestTID,guestPR) --> ID of physical cpu
+ * guestAS [0..1]
+ * guestTID [0..255]
+ * guestPR [0..1]
+ * ID [1..255]
+ * Each vcpu keeps one vcpu_id_table.
+ */
+struct vcpu_id_table {
+ struct id id[2][NUM_TIDS][2];
+};
+
+/*
+ * This table provide reversed mappings of vcpu_id_table:
+ * ID --> address of vcpu_id_table item.
+ * Each physical core has one pcpu_id_table.
+ */
+struct pcpu_id_table {
+ struct id *entry[NUM_TIDS];
+};
+
+static DEFINE_PER_CPU(struct pcpu_id_table, pcpu_sids);
+
+/* This variable keeps last used shadow ID on local core.
+ * The valid range of shadow ID is [1..255] */
+static DEFINE_PER_CPU(unsigned long, pcpu_last_used_sid);
+
static unsigned int tlb1_entry_num;
+/*
+ * Allocate a free shadow id and setup a valid sid mapping in given entry.
+ * A mapping is only valid when vcpu_id_table and pcpu_id_table are match.
+ *
+ * The caller must have preemption disabled, and keep it that way until
+ * it has finished with the returned shadow id (either written into the
+ * TLB or arch.shadow_pid, or discarded).
+ */
+static inline int local_sid_setup_one(struct id *entry)
+{
+ unsigned long sid;
+ int ret = -1;
+
+ sid = ++(__get_cpu_var(pcpu_last_used_sid));
+ if (sid < NUM_TIDS) {
+ __get_cpu_var(pcpu_sids).entry[sid] = entry;
+ entry->val = sid;
+ entry->pentry = &__get_cpu_var(pcpu_sids).entry[sid];
+ ret = sid;
+ }
+
+ /*
+ * If sid == NUM_TIDS, we've run out of sids. We return -1, and
+ * the caller will invalidate everything and start over.
+ *
+ * sid > NUM_TIDS indicates a race, which we disable preemption to
+ * avoid.
+ */
+ WARN_ON(sid > NUM_TIDS);
+
+ return ret;
+}
+
+/*
+ * Check if given entry contain a valid shadow id mapping.
+ * An ID mapping is considered valid only if
+ * both vcpu and pcpu know this mapping.
+ *
+ * The caller must have preemption disabled, and keep it that way until
+ * it has finished with the returned shadow id (either written into the
+ * TLB or arch.shadow_pid, or discarded).
+ */
+static inline int local_sid_lookup(struct id *entry)
+{
+ if (entry && entry->val != 0 &&
+ __get_cpu_var(pcpu_sids).entry[entry->val] == entry &&
+ entry->pentry == &__get_cpu_var(pcpu_sids).entry[entry->val])
+ return entry->val;
+ return -1;
+}
+
+/* Invalidate all id mappings on local core */
+static inline void local_sid_destroy_all(void)
+{
+ preempt_disable();
+ __get_cpu_var(pcpu_last_used_sid) = 0;
+ memset(&__get_cpu_var(pcpu_sids), 0, sizeof(__get_cpu_var(pcpu_sids)));
+ preempt_enable();
+}
+
+static void *kvmppc_e500_id_table_alloc(struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ vcpu_e500->idt = kzalloc(sizeof(struct vcpu_id_table), GFP_KERNEL);
+ return vcpu_e500->idt;
+}
+
+static void kvmppc_e500_id_table_free(struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ kfree(vcpu_e500->idt);
+}
+
+/* Invalidate all mappings on vcpu */
+static void kvmppc_e500_id_table_reset_all(struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ memset(vcpu_e500->idt, 0, sizeof(struct vcpu_id_table));
+
+ /* Update shadow pid when mappings are changed */
+ kvmppc_e500_recalc_shadow_pid(vcpu_e500);
+}
+
+/* Invalidate one ID mapping on vcpu */
+static inline void kvmppc_e500_id_table_reset_one(
+ struct kvmppc_vcpu_e500 *vcpu_e500,
+ int as, int pid, int pr)
+{
+ struct vcpu_id_table *idt = vcpu_e500->idt;
+
+ BUG_ON(as >= 2);
+ BUG_ON(pid >= NUM_TIDS);
+ BUG_ON(pr >= 2);
+
+ idt->id[as][pid][pr].val = 0;
+ idt->id[as][pid][pr].pentry = NULL;
+
+ /* Update shadow pid when mappings are changed */
+ kvmppc_e500_recalc_shadow_pid(vcpu_e500);
+}
+
+/*
+ * Map guest (vcpu,AS,ID,PR) to physical core shadow id.
+ * This function first lookup if a valid mapping exists,
+ * if not, then creates a new one.
+ *
+ * The caller must have preemption disabled, and keep it that way until
+ * it has finished with the returned shadow id (either written into the
+ * TLB or arch.shadow_pid, or discarded).
+ */
+static unsigned int kvmppc_e500_get_sid(struct kvmppc_vcpu_e500 *vcpu_e500,
+ unsigned int as, unsigned int gid,
+ unsigned int pr, int avoid_recursion)
+{
+ struct vcpu_id_table *idt = vcpu_e500->idt;
+ int sid;
+
+ BUG_ON(as >= 2);
+ BUG_ON(gid >= NUM_TIDS);
+ BUG_ON(pr >= 2);
+
+ sid = local_sid_lookup(&idt->id[as][gid][pr]);
+
+ while (sid <= 0) {
+ /* No mapping yet */
+ sid = local_sid_setup_one(&idt->id[as][gid][pr]);
+ if (sid <= 0) {
+ _tlbil_all();
+ local_sid_destroy_all();
+ }
+
+ /* Update shadow pid when mappings are changed */
+ if (!avoid_recursion)
+ kvmppc_e500_recalc_shadow_pid(vcpu_e500);
+ }
+
+ return sid;
+}
+
+/* Map guest pid to shadow.
+ * We use PID to keep shadow of current guest non-zero PID,
+ * and use PID1 to keep shadow of guest zero PID.
+ * So that guest tlbe with TID=0 can be accessed at any time */
+void kvmppc_e500_recalc_shadow_pid(struct kvmppc_vcpu_e500 *vcpu_e500)
+{
+ preempt_disable();
+ vcpu_e500->vcpu.arch.shadow_pid = kvmppc_e500_get_sid(vcpu_e500,
+ get_cur_as(&vcpu_e500->vcpu),
+ get_cur_pid(&vcpu_e500->vcpu),
+ get_cur_pr(&vcpu_e500->vcpu), 1);
+ vcpu_e500->vcpu.arch.shadow_pid1 = kvmppc_e500_get_sid(vcpu_e500,
+ get_cur_as(&vcpu_e500->vcpu), 0,
+ get_cur_pr(&vcpu_e500->vcpu), 1);
+ preempt_enable();
+}
+
void kvmppc_dump_tlbs(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
@@ -41,25 +229,14 @@ void kvmppc_dump_tlbs(struct kvm_vcpu *vcpu)
for (tlbsel = 0; tlbsel < 2; tlbsel++) {
printk("Guest TLB%d:\n", tlbsel);
- for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++) {
- tlbe = &vcpu_e500->guest_tlb[tlbsel][i];
+ for (i = 0; i < vcpu_e500->gtlb_size[tlbsel]; i++) {
+ tlbe = &vcpu_e500->gtlb_arch[tlbsel][i];
if (tlbe->mas1 & MAS1_VALID)
printk(" G[%d][%3d] | %08X | %08X | %08X | %08X |\n",
tlbsel, i, tlbe->mas1, tlbe->mas2,
tlbe->mas3, tlbe->mas7);
}
}
-
- for (tlbsel = 0; tlbsel < 2; tlbsel++) {
- printk("Shadow TLB%d:\n", tlbsel);
- for (i = 0; i < vcpu_e500->shadow_tlb_size[tlbsel]; i++) {
- tlbe = &vcpu_e500->shadow_tlb[tlbsel][i];
- if (tlbe->mas1 & MAS1_VALID)
- printk(" S[%d][%3d] | %08X | %08X | %08X | %08X |\n",
- tlbsel, i, tlbe->mas1, tlbe->mas2,
- tlbe->mas3, tlbe->mas7);
- }
- }
}
static inline unsigned int tlb0_get_next_victim(
@@ -67,16 +244,17 @@ static inline unsigned int tlb0_get_next_victim(
{
unsigned int victim;
- victim = vcpu_e500->guest_tlb_nv[0]++;
- if (unlikely(vcpu_e500->guest_tlb_nv[0] >= KVM_E500_TLB0_WAY_NUM))
- vcpu_e500->guest_tlb_nv[0] = 0;
+ victim = vcpu_e500->gtlb_nv[0]++;
+ if (unlikely(vcpu_e500->gtlb_nv[0] >= KVM_E500_TLB0_WAY_NUM))
+ vcpu_e500->gtlb_nv[0] = 0;
return victim;
}
static inline unsigned int tlb1_max_shadow_size(void)
{
- return tlb1_entry_num - tlbcam_index;
+ /* reserve one entry for magic page */
+ return tlb1_entry_num - tlbcam_index - 1;
}
static inline int tlbe_is_writable(struct tlbe *tlbe)
@@ -112,72 +290,149 @@ static inline u32 e500_shadow_mas2_attrib(u32 mas2, int usermode)
/*
* writing shadow tlb entry to host TLB
*/
-static inline void __write_host_tlbe(struct tlbe *stlbe)
+static inline void __write_host_tlbe(struct tlbe *stlbe, uint32_t mas0)
{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ mtspr(SPRN_MAS0, mas0);
mtspr(SPRN_MAS1, stlbe->mas1);
mtspr(SPRN_MAS2, stlbe->mas2);
mtspr(SPRN_MAS3, stlbe->mas3);
mtspr(SPRN_MAS7, stlbe->mas7);
- __asm__ __volatile__ ("tlbwe\n" : : );
+ asm volatile("isync; tlbwe" : : : "memory");
+ local_irq_restore(flags);
}
static inline void write_host_tlbe(struct kvmppc_vcpu_e500 *vcpu_e500,
- int tlbsel, int esel)
+ int tlbsel, int esel, struct tlbe *stlbe)
{
- struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
-
- local_irq_disable();
if (tlbsel == 0) {
- __write_host_tlbe(stlbe);
+ __write_host_tlbe(stlbe,
+ MAS0_TLBSEL(0) |
+ MAS0_ESEL(esel & (KVM_E500_TLB0_WAY_NUM - 1)));
} else {
- unsigned register mas0;
-
- mas0 = mfspr(SPRN_MAS0);
-
- mtspr(SPRN_MAS0, MAS0_TLBSEL(1) | MAS0_ESEL(to_htlb1_esel(esel)));
- __write_host_tlbe(stlbe);
-
- mtspr(SPRN_MAS0, mas0);
+ __write_host_tlbe(stlbe,
+ MAS0_TLBSEL(1) |
+ MAS0_ESEL(to_htlb1_esel(esel)));
}
- local_irq_enable();
+ trace_kvm_stlb_write(index_of(tlbsel, esel), stlbe->mas1, stlbe->mas2,
+ stlbe->mas3, stlbe->mas7);
+}
+
+void kvmppc_map_magic(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ struct tlbe magic;
+ ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK;
+ unsigned int stid;
+ pfn_t pfn;
+
+ pfn = (pfn_t)virt_to_phys((void *)shared_page) >> PAGE_SHIFT;
+ get_page(pfn_to_page(pfn));
+
+ preempt_disable();
+ stid = kvmppc_e500_get_sid(vcpu_e500, 0, 0, 0, 0);
+
+ magic.mas1 = MAS1_VALID | MAS1_TS | MAS1_TID(stid) |
+ MAS1_TSIZE(BOOK3E_PAGESZ_4K);
+ magic.mas2 = vcpu->arch.magic_page_ea | MAS2_M;
+ magic.mas3 = (pfn << PAGE_SHIFT) |
+ MAS3_SW | MAS3_SR | MAS3_UW | MAS3_UR;
+ magic.mas7 = pfn >> (32 - PAGE_SHIFT);
+
+ __write_host_tlbe(&magic, MAS0_TLBSEL(1) | MAS0_ESEL(tlbcam_index));
+ preempt_enable();
}
void kvmppc_e500_tlb_load(struct kvm_vcpu *vcpu, int cpu)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
- int i;
- unsigned register mas0;
-
- /* Load all valid TLB1 entries to reduce guest tlb miss fault */
- local_irq_disable();
- mas0 = mfspr(SPRN_MAS0);
- for (i = 0; i < tlb1_max_shadow_size(); i++) {
- struct tlbe *stlbe = &vcpu_e500->shadow_tlb[1][i];
-
- if (get_tlb_v(stlbe)) {
- mtspr(SPRN_MAS0, MAS0_TLBSEL(1)
- | MAS0_ESEL(to_htlb1_esel(i)));
- __write_host_tlbe(stlbe);
- }
- }
- mtspr(SPRN_MAS0, mas0);
- local_irq_enable();
+
+ /* Shadow PID may be expired on local core */
+ kvmppc_e500_recalc_shadow_pid(vcpu_e500);
}
void kvmppc_e500_tlb_put(struct kvm_vcpu *vcpu)
{
- _tlbil_all();
+}
+
+static void kvmppc_e500_stlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel, int esel)
+{
+ struct tlbe *gtlbe = &vcpu_e500->gtlb_arch[tlbsel][esel];
+ struct vcpu_id_table *idt = vcpu_e500->idt;
+ unsigned int pr, tid, ts, pid;
+ u32 val, eaddr;
+ unsigned long flags;
+
+ ts = get_tlb_ts(gtlbe);
+ tid = get_tlb_tid(gtlbe);
+
+ preempt_disable();
+
+ /* One guest ID may be mapped to two shadow IDs */
+ for (pr = 0; pr < 2; pr++) {
+ /*
+ * The shadow PID can have a valid mapping on at most one
+ * host CPU. In the common case, it will be valid on this
+ * CPU, in which case (for TLB0) we do a local invalidation
+ * of the specific address.
+ *
+ * If the shadow PID is not valid on the current host CPU, or
+ * if we're invalidating a TLB1 entry, we invalidate the
+ * entire shadow PID.
+ */
+ if (tlbsel == 1 ||
+ (pid = local_sid_lookup(&idt->id[ts][tid][pr])) <= 0) {
+ kvmppc_e500_id_table_reset_one(vcpu_e500, ts, tid, pr);
+ continue;
+ }
+
+ /*
+ * The guest is invalidating a TLB0 entry which is in a PID
+ * that has a valid shadow mapping on this host CPU. We
+ * search host TLB0 to invalidate it's shadow TLB entry,
+ * similar to __tlbil_va except that we need to look in AS1.
+ */
+ val = (pid << MAS6_SPID_SHIFT) | MAS6_SAS;
+ eaddr = get_tlb_eaddr(gtlbe);
+
+ local_irq_save(flags);
+
+ mtspr(SPRN_MAS6, val);
+ asm volatile("tlbsx 0, %[eaddr]" : : [eaddr] "r" (eaddr));
+ val = mfspr(SPRN_MAS1);
+ if (val & MAS1_VALID) {
+ mtspr(SPRN_MAS1, val & ~MAS1_VALID);
+ asm volatile("tlbwe");
+ }
+
+ local_irq_restore(flags);
+ }
+
+ preempt_enable();
}
/* Search the guest TLB for a matching entry. */
static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500,
gva_t eaddr, int tlbsel, unsigned int pid, int as)
{
+ int size = vcpu_e500->gtlb_size[tlbsel];
+ int set_base;
int i;
- /* XXX Replace loop with fancy data structures. */
- for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++) {
- struct tlbe *tlbe = &vcpu_e500->guest_tlb[tlbsel][i];
+ if (tlbsel == 0) {
+ int mask = size / KVM_E500_TLB0_WAY_NUM - 1;
+ set_base = (eaddr >> PAGE_SHIFT) & mask;
+ set_base *= KVM_E500_TLB0_WAY_NUM;
+ size = KVM_E500_TLB0_WAY_NUM;
+ } else {
+ set_base = 0;
+ }
+
+ for (i = 0; i < size; i++) {
+ struct tlbe *tlbe = &vcpu_e500->gtlb_arch[tlbsel][set_base + i];
unsigned int tid;
if (eaddr < get_tlb_eaddr(tlbe))
@@ -196,66 +451,32 @@ static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500,
if (get_tlb_ts(tlbe) != as && as != -1)
continue;
- return i;
+ return set_base + i;
}
return -1;
}
-static void kvmppc_e500_shadow_release(struct kvmppc_vcpu_e500 *vcpu_e500,
- int tlbsel, int esel)
-{
- struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
- struct page *page = vcpu_e500->shadow_pages[tlbsel][esel];
-
- if (page) {
- vcpu_e500->shadow_pages[tlbsel][esel] = NULL;
-
- if (get_tlb_v(stlbe)) {
- if (tlbe_is_writable(stlbe))
- kvm_release_page_dirty(page);
- else
- kvm_release_page_clean(page);
- }
- }
-}
-
-static void kvmppc_e500_stlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
- int tlbsel, int esel)
+static inline void kvmppc_e500_priv_setup(struct tlbe_priv *priv,
+ struct tlbe *gtlbe,
+ pfn_t pfn)
{
- struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
+ priv->pfn = pfn;
+ priv->flags = E500_TLB_VALID;
- kvmppc_e500_shadow_release(vcpu_e500, tlbsel, esel);
- stlbe->mas1 = 0;
- trace_kvm_stlb_inval(index_of(tlbsel, esel));
+ if (tlbe_is_writable(gtlbe))
+ priv->flags |= E500_TLB_DIRTY;
}
-static void kvmppc_e500_tlb1_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
- gva_t eaddr, gva_t eend, u32 tid)
+static inline void kvmppc_e500_priv_release(struct tlbe_priv *priv)
{
- unsigned int pid = tid & 0xff;
- unsigned int i;
-
- /* XXX Replace loop with fancy data structures. */
- for (i = 0; i < vcpu_e500->guest_tlb_size[1]; i++) {
- struct tlbe *stlbe = &vcpu_e500->shadow_tlb[1][i];
- unsigned int tid;
-
- if (!get_tlb_v(stlbe))
- continue;
-
- if (eend < get_tlb_eaddr(stlbe))
- continue;
+ if (priv->flags & E500_TLB_VALID) {
+ if (priv->flags & E500_TLB_DIRTY)
+ kvm_release_pfn_dirty(priv->pfn);
+ else
+ kvm_release_pfn_clean(priv->pfn);
- if (eaddr > get_tlb_end(stlbe))
- continue;
-
- tid = get_tlb_tid(stlbe);
- if (tid && (tid != pid))
- continue;
-
- kvmppc_e500_stlbe_invalidate(vcpu_e500, 1, i);
- write_host_tlbe(vcpu_e500, 1, i);
+ priv->flags = 0;
}
}
@@ -273,7 +494,7 @@ static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
tsized = (vcpu_e500->mas4 >> 7) & 0x1f;
vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
- | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
vcpu_e500->mas1 = MAS1_VALID | (as ? MAS1_TS : 0)
| MAS1_TID(vcpu_e500->pid[pidsel])
| MAS1_TSIZE(tsized);
@@ -286,56 +507,154 @@ static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
vcpu_e500->mas7 = 0;
}
-static inline void kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
- u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe, int tlbsel, int esel)
+static inline void kvmppc_e500_setup_stlbe(struct kvmppc_vcpu_e500 *vcpu_e500,
+ struct tlbe *gtlbe, int tsize,
+ struct tlbe_priv *priv,
+ u64 gvaddr, struct tlbe *stlbe)
{
- struct page *new_page;
- struct tlbe *stlbe;
- hpa_t hpaddr;
-
- stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel];
-
- /* Get reference to new page. */
- new_page = gfn_to_page(vcpu_e500->vcpu.kvm, gfn);
- if (is_error_page(new_page)) {
- printk(KERN_ERR "Couldn't get guest page for gfn %lx!\n",
- (long)gfn);
- kvm_release_page_clean(new_page);
- return;
- }
- hpaddr = page_to_phys(new_page);
-
- /* Drop reference to old page. */
- kvmppc_e500_shadow_release(vcpu_e500, tlbsel, esel);
+ pfn_t pfn = priv->pfn;
+ unsigned int stid;
- vcpu_e500->shadow_pages[tlbsel][esel] = new_page;
+ stid = kvmppc_e500_get_sid(vcpu_e500, get_tlb_ts(gtlbe),
+ get_tlb_tid(gtlbe),
+ get_cur_pr(&vcpu_e500->vcpu), 0);
- /* Force TS=1 IPROT=0 TSIZE=4KB for all guest mappings. */
- stlbe->mas1 = MAS1_TSIZE(BOOK3E_PAGESZ_4K)
- | MAS1_TID(get_tlb_tid(gtlbe)) | MAS1_TS | MAS1_VALID;
+ /* Force TS=1 IPROT=0 for all guest mappings. */
+ stlbe->mas1 = MAS1_TSIZE(tsize)
+ | MAS1_TID(stid) | MAS1_TS | MAS1_VALID;
stlbe->mas2 = (gvaddr & MAS2_EPN)
| e500_shadow_mas2_attrib(gtlbe->mas2,
vcpu_e500->vcpu.arch.shared->msr & MSR_PR);
- stlbe->mas3 = (hpaddr & MAS3_RPN)
+ stlbe->mas3 = ((pfn << PAGE_SHIFT) & MAS3_RPN)
| e500_shadow_mas3_attrib(gtlbe->mas3,
vcpu_e500->vcpu.arch.shared->msr & MSR_PR);
- stlbe->mas7 = (hpaddr >> 32) & MAS7_RPN;
+ stlbe->mas7 = (pfn >> (32 - PAGE_SHIFT)) & MAS7_RPN;
+}
- trace_kvm_stlb_write(index_of(tlbsel, esel), stlbe->mas1, stlbe->mas2,
- stlbe->mas3, stlbe->mas7);
+
+static inline void kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
+ u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe, int tlbsel, int esel,
+ struct tlbe *stlbe)
+{
+ struct kvm_memory_slot *slot;
+ unsigned long pfn, hva;
+ int pfnmap = 0;
+ int tsize = BOOK3E_PAGESZ_4K;
+ struct tlbe_priv *priv;
+
+ /*
+ * Translate guest physical to true physical, acquiring
+ * a page reference if it is normal, non-reserved memory.
+ *
+ * gfn_to_memslot() must succeed because otherwise we wouldn't
+ * have gotten this far. Eventually we should just pass the slot
+ * pointer through from the first lookup.
+ */
+ slot = gfn_to_memslot(vcpu_e500->vcpu.kvm, gfn);
+ hva = gfn_to_hva_memslot(slot, gfn);
+
+ if (tlbsel == 1) {
+ struct vm_area_struct *vma;
+ down_read(&current->mm->mmap_sem);
+
+ vma = find_vma(current->mm, hva);
+ if (vma && hva >= vma->vm_start &&
+ (vma->vm_flags & VM_PFNMAP)) {
+ /*
+ * This VMA is a physically contiguous region (e.g.
+ * /dev/mem) that bypasses normal Linux page
+ * management. Find the overlap between the
+ * vma and the memslot.
+ */
+
+ unsigned long start, end;
+ unsigned long slot_start, slot_end;
+
+ pfnmap = 1;
+
+ start = vma->vm_pgoff;
+ end = start +
+ ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT);
+
+ pfn = start + ((hva - vma->vm_start) >> PAGE_SHIFT);
+
+ slot_start = pfn - (gfn - slot->base_gfn);
+ slot_end = slot_start + slot->npages;
+
+ if (start < slot_start)
+ start = slot_start;
+ if (end > slot_end)
+ end = slot_end;
+
+ tsize = (gtlbe->mas1 & MAS1_TSIZE_MASK) >>
+ MAS1_TSIZE_SHIFT;
+
+ /*
+ * e500 doesn't implement the lowest tsize bit,
+ * or 1K pages.
+ */
+ tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1);
+
+ /*
+ * Now find the largest tsize (up to what the guest
+ * requested) that will cover gfn, stay within the
+ * range, and for which gfn and pfn are mutually
+ * aligned.
+ */
+
+ for (; tsize > BOOK3E_PAGESZ_4K; tsize -= 2) {
+ unsigned long gfn_start, gfn_end, tsize_pages;
+ tsize_pages = 1 << (tsize - 2);
+
+ gfn_start = gfn & ~(tsize_pages - 1);
+ gfn_end = gfn_start + tsize_pages;
+
+ if (gfn_start + pfn - gfn < start)
+ continue;
+ if (gfn_end + pfn - gfn > end)
+ continue;
+ if ((gfn & (tsize_pages - 1)) !=
+ (pfn & (tsize_pages - 1)))
+ continue;
+
+ gvaddr &= ~((tsize_pages << PAGE_SHIFT) - 1);
+ pfn &= ~(tsize_pages - 1);
+ break;
+ }
+ }
+
+ up_read(&current->mm->mmap_sem);
+ }
+
+ if (likely(!pfnmap)) {
+ pfn = gfn_to_pfn_memslot(vcpu_e500->vcpu.kvm, slot, gfn);
+ if (is_error_pfn(pfn)) {
+ printk(KERN_ERR "Couldn't get real page for gfn %lx!\n",
+ (long)gfn);
+ kvm_release_pfn_clean(pfn);
+ return;
+ }
+ }
+
+ /* Drop old priv and setup new one. */
+ priv = &vcpu_e500->gtlb_priv[tlbsel][esel];
+ kvmppc_e500_priv_release(priv);
+ kvmppc_e500_priv_setup(priv, gtlbe, pfn);
+
+ kvmppc_e500_setup_stlbe(vcpu_e500, gtlbe, tsize, priv, gvaddr, stlbe);
}
/* XXX only map the one-one case, for now use TLB0 */
-static int kvmppc_e500_stlbe_map(struct kvmppc_vcpu_e500 *vcpu_e500,
- int tlbsel, int esel)
+static int kvmppc_e500_tlb0_map(struct kvmppc_vcpu_e500 *vcpu_e500,
+ int esel, struct tlbe *stlbe)
{
struct tlbe *gtlbe;
- gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+ gtlbe = &vcpu_e500->gtlb_arch[0][esel];
kvmppc_e500_shadow_map(vcpu_e500, get_tlb_eaddr(gtlbe),
get_tlb_raddr(gtlbe) >> PAGE_SHIFT,
- gtlbe, tlbsel, esel);
+ gtlbe, 0, esel, stlbe);
return esel;
}
@@ -344,53 +663,37 @@ static int kvmppc_e500_stlbe_map(struct kvmppc_vcpu_e500 *vcpu_e500,
* the shadow TLB. */
/* XXX for both one-one and one-to-many , for now use TLB1 */
static int kvmppc_e500_tlb1_map(struct kvmppc_vcpu_e500 *vcpu_e500,
- u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe)
+ u64 gvaddr, gfn_t gfn, struct tlbe *gtlbe, struct tlbe *stlbe)
{
unsigned int victim;
- victim = vcpu_e500->guest_tlb_nv[1]++;
+ victim = vcpu_e500->gtlb_nv[1]++;
- if (unlikely(vcpu_e500->guest_tlb_nv[1] >= tlb1_max_shadow_size()))
- vcpu_e500->guest_tlb_nv[1] = 0;
+ if (unlikely(vcpu_e500->gtlb_nv[1] >= tlb1_max_shadow_size()))
+ vcpu_e500->gtlb_nv[1] = 0;
- kvmppc_e500_shadow_map(vcpu_e500, gvaddr, gfn, gtlbe, 1, victim);
+ kvmppc_e500_shadow_map(vcpu_e500, gvaddr, gfn, gtlbe, 1, victim, stlbe);
return victim;
}
-/* Invalidate all guest kernel mappings when enter usermode,
- * so that when they fault back in they will get the
- * proper permission bits. */
-void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode)
+void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr)
{
- if (usermode) {
- struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
- int i;
-
- /* XXX Replace loop with fancy data structures. */
- for (i = 0; i < tlb1_max_shadow_size(); i++)
- kvmppc_e500_stlbe_invalidate(vcpu_e500, 1, i);
+ struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
- _tlbil_all();
- }
+ /* Recalc shadow pid since MSR changes */
+ kvmppc_e500_recalc_shadow_pid(vcpu_e500);
}
-static int kvmppc_e500_gtlbe_invalidate(struct kvmppc_vcpu_e500 *vcpu_e500,
- int tlbsel, int esel)
+static inline int kvmppc_e500_gtlbe_invalidate(
+ struct kvmppc_vcpu_e500 *vcpu_e500,
+ int tlbsel, int esel)
{
- struct tlbe *gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+ struct tlbe *gtlbe = &vcpu_e500->gtlb_arch[tlbsel][esel];
if (unlikely(get_tlb_iprot(gtlbe)))
return -1;
- if (tlbsel == 1) {
- kvmppc_e500_tlb1_invalidate(vcpu_e500, get_tlb_eaddr(gtlbe),
- get_tlb_end(gtlbe),
- get_tlb_tid(gtlbe));
- } else {
- kvmppc_e500_stlbe_invalidate(vcpu_e500, tlbsel, esel);
- }
-
gtlbe->mas1 = 0;
return 0;
@@ -401,13 +704,14 @@ int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500, ulong value)
int esel;
if (value & MMUCSR0_TLB0FI)
- for (esel = 0; esel < vcpu_e500->guest_tlb_size[0]; esel++)
+ for (esel = 0; esel < vcpu_e500->gtlb_size[0]; esel++)
kvmppc_e500_gtlbe_invalidate(vcpu_e500, 0, esel);
if (value & MMUCSR0_TLB1FI)
- for (esel = 0; esel < vcpu_e500->guest_tlb_size[1]; esel++)
+ for (esel = 0; esel < vcpu_e500->gtlb_size[1]; esel++)
kvmppc_e500_gtlbe_invalidate(vcpu_e500, 1, esel);
- _tlbil_all();
+ /* Invalidate all vcpu id mappings */
+ kvmppc_e500_id_table_reset_all(vcpu_e500);
return EMULATE_DONE;
}
@@ -428,7 +732,7 @@ int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
if (ia) {
/* invalidate all entries */
- for (esel = 0; esel < vcpu_e500->guest_tlb_size[tlbsel]; esel++)
+ for (esel = 0; esel < vcpu_e500->gtlb_size[tlbsel]; esel++)
kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
} else {
ea &= 0xfffff000;
@@ -438,7 +742,8 @@ int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, int ra, int rb)
kvmppc_e500_gtlbe_invalidate(vcpu_e500, tlbsel, esel);
}
- _tlbil_all();
+ /* Invalidate all vcpu id mappings */
+ kvmppc_e500_id_table_reset_all(vcpu_e500);
return EMULATE_DONE;
}
@@ -452,9 +757,9 @@ int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu)
tlbsel = get_tlb_tlbsel(vcpu_e500);
esel = get_tlb_esel(vcpu_e500, tlbsel);
- gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+ gtlbe = &vcpu_e500->gtlb_arch[tlbsel][esel];
vcpu_e500->mas0 &= ~MAS0_NV(~0);
- vcpu_e500->mas0 |= MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ vcpu_e500->mas0 |= MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
vcpu_e500->mas1 = gtlbe->mas1;
vcpu_e500->mas2 = gtlbe->mas2;
vcpu_e500->mas3 = gtlbe->mas3;
@@ -477,14 +782,14 @@ int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
for (tlbsel = 0; tlbsel < 2; tlbsel++) {
esel = kvmppc_e500_tlb_index(vcpu_e500, ea, tlbsel, pid, as);
if (esel >= 0) {
- gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+ gtlbe = &vcpu_e500->gtlb_arch[tlbsel][esel];
break;
}
}
if (gtlbe) {
vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel)
- | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
vcpu_e500->mas1 = gtlbe->mas1;
vcpu_e500->mas2 = gtlbe->mas2;
vcpu_e500->mas3 = gtlbe->mas3;
@@ -497,7 +802,7 @@ int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
victim = (tlbsel == 0) ? tlb0_get_next_victim(vcpu_e500) : 0;
vcpu_e500->mas0 = MAS0_TLBSEL(tlbsel) | MAS0_ESEL(victim)
- | MAS0_NV(vcpu_e500->guest_tlb_nv[tlbsel]);
+ | MAS0_NV(vcpu_e500->gtlb_nv[tlbsel]);
vcpu_e500->mas1 = (vcpu_e500->mas6 & MAS6_SPID0)
| (vcpu_e500->mas6 & (MAS6_SAS ? MAS1_TS : 0))
| (vcpu_e500->mas4 & MAS4_TSIZED(~0));
@@ -514,23 +819,16 @@ int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, int rb)
int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
- u64 eaddr;
- u64 raddr;
- u32 tid;
struct tlbe *gtlbe;
- int tlbsel, esel, stlbsel, sesel;
+ int tlbsel, esel;
tlbsel = get_tlb_tlbsel(vcpu_e500);
esel = get_tlb_esel(vcpu_e500, tlbsel);
- gtlbe = &vcpu_e500->guest_tlb[tlbsel][esel];
+ gtlbe = &vcpu_e500->gtlb_arch[tlbsel][esel];
- if (get_tlb_v(gtlbe) && tlbsel == 1) {
- eaddr = get_tlb_eaddr(gtlbe);
- tid = get_tlb_tid(gtlbe);
- kvmppc_e500_tlb1_invalidate(vcpu_e500, eaddr,
- get_tlb_end(gtlbe), tid);
- }
+ if (get_tlb_v(gtlbe))
+ kvmppc_e500_stlbe_invalidate(vcpu_e500, tlbsel, esel);
gtlbe->mas1 = vcpu_e500->mas1;
gtlbe->mas2 = vcpu_e500->mas2;
@@ -542,6 +840,12 @@ int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
/* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */
if (tlbe_is_host_safe(vcpu, gtlbe)) {
+ struct tlbe stlbe;
+ int stlbsel, sesel;
+ u64 eaddr;
+ u64 raddr;
+
+ preempt_disable();
switch (tlbsel) {
case 0:
/* TLB0 */
@@ -549,7 +853,7 @@ int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
gtlbe->mas1 |= MAS1_TSIZE(BOOK3E_PAGESZ_4K);
stlbsel = 0;
- sesel = kvmppc_e500_stlbe_map(vcpu_e500, 0, esel);
+ sesel = kvmppc_e500_tlb0_map(vcpu_e500, esel, &stlbe);
break;
@@ -564,13 +868,14 @@ int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu)
* are mapped on the fly. */
stlbsel = 1;
sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr,
- raddr >> PAGE_SHIFT, gtlbe);
+ raddr >> PAGE_SHIFT, gtlbe, &stlbe);
break;
default:
BUG();
}
- write_host_tlbe(vcpu_e500, stlbsel, sesel);
+ write_host_tlbe(vcpu_e500, stlbsel, sesel, &stlbe);
+ preempt_enable();
}
kvmppc_set_exit_type(vcpu, EMULATED_TLBWE_EXITS);
@@ -610,7 +915,7 @@ gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index,
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
struct tlbe *gtlbe =
- &vcpu_e500->guest_tlb[tlbsel_of(index)][esel_of(index)];
+ &vcpu_e500->gtlb_arch[tlbsel_of(index)][esel_of(index)];
u64 pgmask = get_tlb_bytes(gtlbe) - 1;
return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
@@ -618,38 +923,37 @@ gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index,
void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
{
- struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
- int tlbsel, i;
-
- for (tlbsel = 0; tlbsel < 2; tlbsel++)
- for (i = 0; i < vcpu_e500->guest_tlb_size[tlbsel]; i++)
- kvmppc_e500_shadow_release(vcpu_e500, tlbsel, i);
-
- /* discard all guest mapping */
- _tlbil_all();
}
void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr,
unsigned int index)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
+ struct tlbe_priv *priv;
+ struct tlbe *gtlbe, stlbe;
int tlbsel = tlbsel_of(index);
int esel = esel_of(index);
int stlbsel, sesel;
+ gtlbe = &vcpu_e500->gtlb_arch[tlbsel][esel];
+
+ preempt_disable();
switch (tlbsel) {
case 0:
stlbsel = 0;
sesel = esel;
+ priv = &vcpu_e500->gtlb_priv[stlbsel][sesel];
+
+ kvmppc_e500_setup_stlbe(vcpu_e500, gtlbe, BOOK3E_PAGESZ_4K,
+ priv, eaddr, &stlbe);
break;
case 1: {
gfn_t gfn = gpaddr >> PAGE_SHIFT;
- struct tlbe *gtlbe
- = &vcpu_e500->guest_tlb[tlbsel][esel];
stlbsel = 1;
- sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr, gfn, gtlbe);
+ sesel = kvmppc_e500_tlb1_map(vcpu_e500, eaddr, gfn,
+ gtlbe, &stlbe);
break;
}
@@ -657,7 +961,9 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 eaddr, gpa_t gpaddr,
BUG();
break;
}
- write_host_tlbe(vcpu_e500, stlbsel, sesel);
+
+ write_host_tlbe(vcpu_e500, stlbsel, sesel, &stlbe);
+ preempt_enable();
}
int kvmppc_e500_tlb_search(struct kvm_vcpu *vcpu,
@@ -679,8 +985,10 @@ void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
- vcpu_e500->pid[0] = vcpu->arch.shadow_pid =
- vcpu->arch.pid = pid;
+ if (vcpu->arch.pid != pid) {
+ vcpu_e500->pid[0] = vcpu->arch.pid = pid;
+ kvmppc_e500_recalc_shadow_pid(vcpu_e500);
+ }
}
void kvmppc_e500_tlb_setup(struct kvmppc_vcpu_e500 *vcpu_e500)
@@ -688,14 +996,14 @@ void kvmppc_e500_tlb_setup(struct kvmppc_vcpu_e500 *vcpu_e500)
struct tlbe *tlbe;
/* Insert large initial mapping for guest. */
- tlbe = &vcpu_e500->guest_tlb[1][0];
+ tlbe = &vcpu_e500->gtlb_arch[1][0];
tlbe->mas1 = MAS1_VALID | MAS1_TSIZE(BOOK3E_PAGESZ_256M);
tlbe->mas2 = 0;
tlbe->mas3 = E500_TLB_SUPER_PERM_MASK;
tlbe->mas7 = 0;
/* 4K map for serial output. Used by kernel wrapper. */
- tlbe = &vcpu_e500->guest_tlb[1][1];
+ tlbe = &vcpu_e500->gtlb_arch[1][1];
tlbe->mas1 = MAS1_VALID | MAS1_TSIZE(BOOK3E_PAGESZ_4K);
tlbe->mas2 = (0xe0004500 & 0xFFFFF000) | MAS2_I | MAS2_G;
tlbe->mas3 = (0xe0004500 & 0xFFFFF000) | E500_TLB_SUPER_PERM_MASK;
@@ -706,68 +1014,64 @@ int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
{
tlb1_entry_num = mfspr(SPRN_TLB1CFG) & 0xFFF;
- vcpu_e500->guest_tlb_size[0] = KVM_E500_TLB0_SIZE;
- vcpu_e500->guest_tlb[0] =
+ vcpu_e500->gtlb_size[0] = KVM_E500_TLB0_SIZE;
+ vcpu_e500->gtlb_arch[0] =
kzalloc(sizeof(struct tlbe) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
- if (vcpu_e500->guest_tlb[0] == NULL)
+ if (vcpu_e500->gtlb_arch[0] == NULL)
goto err_out;
- vcpu_e500->shadow_tlb_size[0] = KVM_E500_TLB0_SIZE;
- vcpu_e500->shadow_tlb[0] =
- kzalloc(sizeof(struct tlbe) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
- if (vcpu_e500->shadow_tlb[0] == NULL)
- goto err_out_guest0;
-
- vcpu_e500->guest_tlb_size[1] = KVM_E500_TLB1_SIZE;
- vcpu_e500->guest_tlb[1] =
+ vcpu_e500->gtlb_size[1] = KVM_E500_TLB1_SIZE;
+ vcpu_e500->gtlb_arch[1] =
kzalloc(sizeof(struct tlbe) * KVM_E500_TLB1_SIZE, GFP_KERNEL);
- if (vcpu_e500->guest_tlb[1] == NULL)
- goto err_out_shadow0;
+ if (vcpu_e500->gtlb_arch[1] == NULL)
+ goto err_out_guest0;
- vcpu_e500->shadow_tlb_size[1] = tlb1_entry_num;
- vcpu_e500->shadow_tlb[1] =
- kzalloc(sizeof(struct tlbe) * tlb1_entry_num, GFP_KERNEL);
- if (vcpu_e500->shadow_tlb[1] == NULL)
+ vcpu_e500->gtlb_priv[0] = (struct tlbe_priv *)
+ kzalloc(sizeof(struct tlbe_priv) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
+ if (vcpu_e500->gtlb_priv[0] == NULL)
goto err_out_guest1;
+ vcpu_e500->gtlb_priv[1] = (struct tlbe_priv *)
+ kzalloc(sizeof(struct tlbe_priv) * KVM_E500_TLB1_SIZE, GFP_KERNEL);
- vcpu_e500->shadow_pages[0] = (struct page **)
- kzalloc(sizeof(struct page *) * KVM_E500_TLB0_SIZE, GFP_KERNEL);
- if (vcpu_e500->shadow_pages[0] == NULL)
- goto err_out_shadow1;
+ if (vcpu_e500->gtlb_priv[1] == NULL)
+ goto err_out_priv0;
- vcpu_e500->shadow_pages[1] = (struct page **)
- kzalloc(sizeof(struct page *) * tlb1_entry_num, GFP_KERNEL);
- if (vcpu_e500->shadow_pages[1] == NULL)
- goto err_out_page0;
+ if (kvmppc_e500_id_table_alloc(vcpu_e500) == NULL)
+ goto err_out_priv1;
/* Init TLB configuration register */
vcpu_e500->tlb0cfg = mfspr(SPRN_TLB0CFG) & ~0xfffUL;
- vcpu_e500->tlb0cfg |= vcpu_e500->guest_tlb_size[0];
+ vcpu_e500->tlb0cfg |= vcpu_e500->gtlb_size[0];
vcpu_e500->tlb1cfg = mfspr(SPRN_TLB1CFG) & ~0xfffUL;
- vcpu_e500->tlb1cfg |= vcpu_e500->guest_tlb_size[1];
+ vcpu_e500->tlb1cfg |= vcpu_e500->gtlb_size[1];
return 0;
-err_out_page0:
- kfree(vcpu_e500->shadow_pages[0]);
-err_out_shadow1:
- kfree(vcpu_e500->shadow_tlb[1]);
+err_out_priv1:
+ kfree(vcpu_e500->gtlb_priv[1]);
+err_out_priv0:
+ kfree(vcpu_e500->gtlb_priv[0]);
err_out_guest1:
- kfree(vcpu_e500->guest_tlb[1]);
-err_out_shadow0:
- kfree(vcpu_e500->shadow_tlb[0]);
+ kfree(vcpu_e500->gtlb_arch[1]);
err_out_guest0:
- kfree(vcpu_e500->guest_tlb[0]);
+ kfree(vcpu_e500->gtlb_arch[0]);
err_out:
return -1;
}
void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500)
{
- kfree(vcpu_e500->shadow_pages[1]);
- kfree(vcpu_e500->shadow_pages[0]);
- kfree(vcpu_e500->shadow_tlb[1]);
- kfree(vcpu_e500->guest_tlb[1]);
- kfree(vcpu_e500->shadow_tlb[0]);
- kfree(vcpu_e500->guest_tlb[0]);
+ int stlbsel, i;
+
+ /* release all privs */
+ for (stlbsel = 0; stlbsel < 2; stlbsel++)
+ for (i = 0; i < vcpu_e500->gtlb_size[stlbsel]; i++) {
+ struct tlbe_priv *priv =
+ &vcpu_e500->gtlb_priv[stlbsel][i];
+ kvmppc_e500_priv_release(priv);
+ }
+
+ kvmppc_e500_id_table_free(vcpu_e500);
+ kfree(vcpu_e500->gtlb_arch[1]);
+ kfree(vcpu_e500->gtlb_arch[0]);
}