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authorLinus Torvalds <torvalds@linux-foundation.org>2016-01-12 13:22:12 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-12 13:22:12 -0800
commit1baa5efbeb6eb75de697f7b5931094be33f12005 (patch)
tree30358fcebb950305929306c6654f8a585f1f5500 /virt
parentc9bed1cf51011c815d88288b774865d013ca78a8 (diff)
parent45bdbcfdf241149642fb6c25ab0c209d59c371b7 (diff)
downloadlinux-1baa5efbeb6eb75de697f7b5931094be33f12005.tar.gz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini: "PPC changes will come next week. - s390: Support for runtime instrumentation within guests, support of 248 VCPUs. - ARM: rewrite of the arm64 world switch in C, support for 16-bit VM identifiers. Performance counter virtualization missed the boat. - x86: Support for more Hyper-V features (synthetic interrupt controller), MMU cleanups" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (115 commits) kvm: x86: Fix vmwrite to SECONDARY_VM_EXEC_CONTROL kvm/x86: Hyper-V SynIC timers tracepoints kvm/x86: Hyper-V SynIC tracepoints kvm/x86: Update SynIC timers on guest entry only kvm/x86: Skip SynIC vector check for QEMU side kvm/x86: Hyper-V fix SynIC timer disabling condition kvm/x86: Reorg stimer_expiration() to better control timer restart kvm/x86: Hyper-V unify stimer_start() and stimer_restart() kvm/x86: Drop stimer_stop() function kvm/x86: Hyper-V timers fix incorrect logical operation KVM: move architecture-dependent requests to arch/ KVM: renumber vcpu->request bits KVM: document which architecture uses each request bit KVM: Remove unused KVM_REQ_KICK to save a bit in vcpu->requests kvm: x86: Check kvm_write_guest return value in kvm_write_wall_clock KVM: s390: implement the RI support of guest kvm/s390: drop unpaired smp_mb kvm: x86: fix comment about {mmu,nested_mmu}.gva_to_gpa KVM: x86: MMU: Use clear_page() instead of init_shadow_page_table() arm/arm64: KVM: Detect vGIC presence at runtime ...
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/vgic-v3.c11
-rw-r--r--virt/kvm/arm/vgic.c2
-rw-r--r--virt/kvm/async_pf.c3
-rw-r--r--virt/kvm/irqchip.c7
-rw-r--r--virt/kvm/kvm_main.c46
5 files changed, 23 insertions, 46 deletions
diff --git a/virt/kvm/arm/vgic-v3.c b/virt/kvm/arm/vgic-v3.c
index 487d6357b7e7..453eafd4dd6e 100644
--- a/virt/kvm/arm/vgic-v3.c
+++ b/virt/kvm/arm/vgic-v3.c
@@ -28,6 +28,7 @@
#include <asm/kvm_emulate.h>
#include <asm/kvm_arm.h>
+#include <asm/kvm_asm.h>
#include <asm/kvm_mmu.h>
/* These are for GICv2 emulation only */
@@ -36,18 +37,12 @@
#define GICH_LR_PHYSID_CPUID (7UL << GICH_LR_PHYSID_CPUID_SHIFT)
#define ICH_LR_VIRTUALID_MASK (BIT_ULL(32) - 1)
-/*
- * LRs are stored in reverse order in memory. make sure we index them
- * correctly.
- */
-#define LR_INDEX(lr) (VGIC_V3_MAX_LRS - 1 - lr)
-
static u32 ich_vtr_el2;
static struct vgic_lr vgic_v3_get_lr(const struct kvm_vcpu *vcpu, int lr)
{
struct vgic_lr lr_desc;
- u64 val = vcpu->arch.vgic_cpu.vgic_v3.vgic_lr[LR_INDEX(lr)];
+ u64 val = vcpu->arch.vgic_cpu.vgic_v3.vgic_lr[VGIC_V3_LR_INDEX(lr)];
if (vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3)
lr_desc.irq = val & ICH_LR_VIRTUALID_MASK;
@@ -111,7 +106,7 @@ static void vgic_v3_set_lr(struct kvm_vcpu *vcpu, int lr,
lr_val |= ((u64)lr_desc.hwirq) << ICH_LR_PHYS_ID_SHIFT;
}
- vcpu->arch.vgic_cpu.vgic_v3.vgic_lr[LR_INDEX(lr)] = lr_val;
+ vcpu->arch.vgic_cpu.vgic_v3.vgic_lr[VGIC_V3_LR_INDEX(lr)] = lr_val;
if (!(lr_desc.state & LR_STATE_MASK))
vcpu->arch.vgic_cpu.vgic_v3.vgic_elrsr |= (1U << lr);
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 7a2f449bd85d..043032c6a5a4 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -878,7 +878,7 @@ static int vgic_handle_mmio_write(struct kvm_vcpu *vcpu,
true);
}
-struct kvm_io_device_ops vgic_io_ops = {
+static struct kvm_io_device_ops vgic_io_ops = {
.read = vgic_handle_mmio_read,
.write = vgic_handle_mmio_write,
};
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 77d42be6970e..353159922456 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -57,8 +57,7 @@ int kvm_async_pf_init(void)
void kvm_async_pf_deinit(void)
{
- if (async_pf_cache)
- kmem_cache_destroy(async_pf_cache);
+ kmem_cache_destroy(async_pf_cache);
async_pf_cache = NULL;
}
diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index f0b08a2a48ba..fe84e1a95dd5 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c
@@ -166,6 +166,10 @@ out:
return r;
}
+void __attribute__((weak)) kvm_arch_irq_routing_update(struct kvm *kvm)
+{
+}
+
int kvm_set_irq_routing(struct kvm *kvm,
const struct kvm_irq_routing_entry *ue,
unsigned nr,
@@ -219,9 +223,10 @@ int kvm_set_irq_routing(struct kvm *kvm,
old = kvm->irq_routing;
rcu_assign_pointer(kvm->irq_routing, new);
kvm_irq_routing_update(kvm);
+ kvm_arch_irq_routing_update(kvm);
mutex_unlock(&kvm->irq_lock);
- kvm_arch_irq_routing_update(kvm);
+ kvm_arch_post_irq_routing_update(kvm);
synchronize_srcu_expedited(&kvm->irq_srcu);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 484079efea5b..314c7774652e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -206,16 +206,6 @@ void kvm_reload_remote_mmus(struct kvm *kvm)
kvm_make_all_cpus_request(kvm, KVM_REQ_MMU_RELOAD);
}
-void kvm_make_mclock_inprogress_request(struct kvm *kvm)
-{
- kvm_make_all_cpus_request(kvm, KVM_REQ_MCLOCK_INPROGRESS);
-}
-
-void kvm_make_scan_ioapic_request(struct kvm *kvm)
-{
- kvm_make_all_cpus_request(kvm, KVM_REQ_SCAN_IOAPIC);
-}
-
int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
{
struct page *page;
@@ -1164,15 +1154,15 @@ struct kvm_memory_slot *kvm_vcpu_gfn_to_memslot(struct kvm_vcpu *vcpu, gfn_t gfn
return __gfn_to_memslot(kvm_vcpu_memslots(vcpu), gfn);
}
-int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
+bool kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
{
struct kvm_memory_slot *memslot = gfn_to_memslot(kvm, gfn);
if (!memslot || memslot->id >= KVM_USER_MEM_SLOTS ||
memslot->flags & KVM_MEMSLOT_INVALID)
- return 0;
+ return false;
- return 1;
+ return true;
}
EXPORT_SYMBOL_GPL(kvm_is_visible_gfn);
@@ -2257,7 +2247,7 @@ static int create_vcpu_fd(struct kvm_vcpu *vcpu)
static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
{
int r;
- struct kvm_vcpu *vcpu, *v;
+ struct kvm_vcpu *vcpu;
if (id >= KVM_MAX_VCPUS)
return -EINVAL;
@@ -2281,12 +2271,10 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
r = -EINVAL;
goto unlock_vcpu_destroy;
}
-
- kvm_for_each_vcpu(r, v, kvm)
- if (v->vcpu_id == id) {
- r = -EEXIST;
- goto unlock_vcpu_destroy;
- }
+ if (kvm_get_vcpu_by_id(kvm, id)) {
+ r = -EEXIST;
+ goto unlock_vcpu_destroy;
+ }
BUG_ON(kvm->vcpus[atomic_read(&kvm->online_vcpus)]);
@@ -3449,10 +3437,9 @@ static int kvm_init_debug(void)
goto out;
for (p = debugfs_entries; p->name; ++p) {
- p->dentry = debugfs_create_file(p->name, 0444, kvm_debugfs_dir,
- (void *)(long)p->offset,
- stat_fops[p->kind]);
- if (p->dentry == NULL)
+ if (!debugfs_create_file(p->name, 0444, kvm_debugfs_dir,
+ (void *)(long)p->offset,
+ stat_fops[p->kind]))
goto out_dir;
}
@@ -3464,15 +3451,6 @@ out:
return r;
}
-static void kvm_exit_debug(void)
-{
- struct kvm_stats_debugfs_item *p;
-
- for (p = debugfs_entries; p->name; ++p)
- debugfs_remove(p->dentry);
- debugfs_remove(kvm_debugfs_dir);
-}
-
static int kvm_suspend(void)
{
if (kvm_usage_count)
@@ -3630,7 +3608,7 @@ EXPORT_SYMBOL_GPL(kvm_init);
void kvm_exit(void)
{
- kvm_exit_debug();
+ debugfs_remove_recursive(kvm_debugfs_dir);
misc_deregister(&kvm_dev);
kmem_cache_destroy(kvm_vcpu_cache);
kvm_async_pf_deinit();