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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-12-10 10:17:45 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-12-10 10:17:45 +0100
commit9c96f401e91a4358eb4a5e227c1521dea1c20127 (patch)
treee8a0b78324510ba6133c58cc05b2cb2f3876745e /arch/x86/kvm/lapic.c
parent1528e40fd7d382e9668d3a1876a83d30bb04d554 (diff)
parent40e020c129cfc991e8ab4736d2665351ffd1468d (diff)
Merge 4.20-rc6 into tty-next
We want the TTY changes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kvm/lapic.c')
-rw-r--r--arch/x86/kvm/lapic.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 89db20f8cb70..c4533d05c214 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -55,7 +55,7 @@
#define PRIo64 "o"
/* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
-#define apic_debug(fmt, arg...)
+#define apic_debug(fmt, arg...) do {} while (0)
/* 14 is the version for Xeon and Pentium 8.4.8*/
#define APIC_VERSION (0x14UL | ((KVM_APIC_LVT_NUM - 1) << 16))
@@ -576,6 +576,11 @@ int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
rcu_read_lock();
map = rcu_dereference(kvm->arch.apic_map);
+ if (unlikely(!map)) {
+ count = -EOPNOTSUPP;
+ goto out;
+ }
+
if (min > map->max_apic_id)
goto out;
/* Bits above cluster_size are masked in the caller. */