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Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.c')
-rw-r--r--arch/powerpc/kvm/book3s_hv.c41
1 files changed, 39 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index e20beae5ca7a..2fd5580c8f6e 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -52,6 +52,7 @@
#include <asm/switch_to.h>
#include <asm/smp.h>
#include <asm/dbell.h>
+#include <asm/hmi.h>
#include <linux/gfp.h>
#include <linux/vmalloc.h>
#include <linux/highmem.h>
@@ -2522,7 +2523,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
list_for_each_entry(pvc, &core_info.vcs[sub], preempt_list)
spin_unlock(&pvc->lock);
- kvm_guest_enter();
+ guest_enter();
srcu_idx = srcu_read_lock(&vc->kvm->srcu);
@@ -2570,7 +2571,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
/* make sure updates to secondary vcpu structs are visible now */
smp_mb();
- kvm_guest_exit();
+ guest_exit();
for (sub = 0; sub < core_info.n_subcores; ++sub)
list_for_each_entry_safe(pvc, vcnext, &core_info.vcs[sub],
@@ -3401,6 +3402,38 @@ static struct kvmppc_ops kvm_ops_hv = {
.hcall_implemented = kvmppc_hcall_impl_hv,
};
+static int kvm_init_subcore_bitmap(void)
+{
+ int i, j;
+ int nr_cores = cpu_nr_cores();
+ struct sibling_subcore_state *sibling_subcore_state;
+
+ for (i = 0; i < nr_cores; i++) {
+ int first_cpu = i * threads_per_core;
+ int node = cpu_to_node(first_cpu);
+
+ /* Ignore if it is already allocated. */
+ if (paca[first_cpu].sibling_subcore_state)
+ continue;
+
+ sibling_subcore_state =
+ kmalloc_node(sizeof(struct sibling_subcore_state),
+ GFP_KERNEL, node);
+ if (!sibling_subcore_state)
+ return -ENOMEM;
+
+ memset(sibling_subcore_state, 0,
+ sizeof(struct sibling_subcore_state));
+
+ for (j = 0; j < threads_per_core; j++) {
+ int cpu = first_cpu + j;
+
+ paca[cpu].sibling_subcore_state = sibling_subcore_state;
+ }
+ }
+ return 0;
+}
+
static int kvmppc_book3s_init_hv(void)
{
int r;
@@ -3411,6 +3444,10 @@ static int kvmppc_book3s_init_hv(void)
if (r < 0)
return -ENODEV;
+ r = kvm_init_subcore_bitmap();
+ if (r)
+ return r;
+
kvm_ops_hv.owner = THIS_MODULE;
kvmppc_hv_ops = &kvm_ops_hv;