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-rw-r--r--virt/Makefile1
-rw-r--r--virt/kvm/arm/arm.c3
-rw-r--r--virt/kvm/eventfd.c9
-rw-r--r--virt/kvm/kvm_main.c11
-rw-r--r--virt/lib/Kconfig1
-rw-r--r--virt/lib/Makefile1
6 files changed, 23 insertions, 3 deletions
diff --git a/virt/Makefile b/virt/Makefile
index be783472ac81..1cfea9436af9 100644
--- a/virt/Makefile
+++ b/virt/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
obj-y += lib/
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 90cedebaeb94..7eeebe5e9da2 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -224,6 +224,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_MAX_VCPUS:
r = KVM_MAX_VCPUS;
break;
+ case KVM_CAP_MAX_VCPU_ID:
+ r = KVM_MAX_VCPU_ID;
+ break;
case KVM_CAP_MSI_DEVID:
if (!kvm)
r = -EINVAL;
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 001aeda4c154..3972a9564c76 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -44,6 +44,12 @@
static struct workqueue_struct *irqfd_cleanup_wq;
+bool __attribute__((weak))
+kvm_arch_irqfd_allowed(struct kvm *kvm, struct kvm_irqfd *args)
+{
+ return true;
+}
+
static void
irqfd_inject(struct work_struct *work)
{
@@ -297,6 +303,9 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
if (!kvm_arch_intc_initialized(kvm))
return -EAGAIN;
+ if (!kvm_arch_irqfd_allowed(kvm, args))
+ return -EINVAL;
+
irqfd = kzalloc(sizeof(*irqfd), GFP_KERNEL_ACCOUNT);
if (!irqfd)
return -ENOMEM;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index f0d13d9d125d..ca54b09adf5b 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -52,6 +52,7 @@
#include <linux/sort.h>
#include <linux/bsearch.h>
#include <linux/io.h>
+#include <linux/lockdep.h>
#include <asm/processor.h>
#include <asm/ioctl.h>
@@ -1760,8 +1761,10 @@ static int __kvm_map_gfn(struct kvm_memory_slot *slot, gfn_t gfn,
if (pfn_valid(pfn)) {
page = pfn_to_page(pfn);
hva = kmap(page);
+#ifdef CONFIG_HAS_IOMEM
} else {
hva = memremap(pfn_to_hpa(pfn), PAGE_SIZE, MEMREMAP_WB);
+#endif
}
if (!hva)
@@ -1792,8 +1795,10 @@ void kvm_vcpu_unmap(struct kvm_vcpu *vcpu, struct kvm_host_map *map,
if (map->page)
kunmap(map->page);
+#ifdef CONFIG_HAS_IOMEM
else
memunmap(map->hva);
+#endif
if (dirty) {
kvm_vcpu_mark_page_dirty(vcpu, map->gfn);
@@ -3146,8 +3151,6 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
case KVM_CAP_MULTI_ADDRESS_SPACE:
return KVM_ADDRESS_SPACE_NUM;
#endif
- case KVM_CAP_MAX_VCPU_ID:
- return KVM_MAX_VCPU_ID;
case KVM_CAP_NR_MEMSLOTS:
return KVM_USER_MEM_SLOTS;
default:
@@ -4181,7 +4184,9 @@ static int kvm_suspend(void)
static void kvm_resume(void)
{
if (kvm_usage_count) {
- lockdep_assert_held(&kvm_count_lock);
+#ifdef CONFIG_LOCKDEP
+ WARN_ON(lockdep_is_held(&kvm_count_lock));
+#endif
hardware_enable_nolock(NULL);
}
}
diff --git a/virt/lib/Kconfig b/virt/lib/Kconfig
index 89a414f815d2..2d9523b7155e 100644
--- a/virt/lib/Kconfig
+++ b/virt/lib/Kconfig
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
config IRQ_BYPASS_MANAGER
tristate
diff --git a/virt/lib/Makefile b/virt/lib/Makefile
index 901228d1ffbc..bd7f9a78bb6b 100644
--- a/virt/lib/Makefile
+++ b/virt/lib/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_IRQ_BYPASS_MANAGER) += irqbypass.o