diff options
author | Alexander Graf <agraf@suse.de> | 2014-06-06 14:46:05 +0200 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-06-18 16:54:18 +0200 |
commit | 00008418aa22700f6c49e794e79f53aeb157d10f (patch) | |
tree | f0f3b71b87ffe17b35ffdad02a48bffe04e6a9ea /kvm-all.c | |
parent | af44da87e926ff64260b95f4350d338c4fc113ca (diff) | |
download | hqemu-00008418aa22700f6c49e794e79f53aeb157d10f.zip hqemu-00008418aa22700f6c49e794e79f53aeb157d10f.tar.gz |
KVM: Fix GSI number space limit
KVM tells us the number of GSIs it can handle inside the kernel. That value is
basically KVM_MAX_IRQ_ROUTES. However when we try to set the GSI mapping table,
it checks for
r = -EINVAL;
if (routing.nr >= KVM_MAX_IRQ_ROUTES)
goto out;
erroring out even when we're only using all of the GSIs. To make sure we never
hit that limit, let's reduce the number of GSIs we get from KVM by one.
Cc: qemu-stable@nongnu.org
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'kvm-all.c')
-rw-r--r-- | kvm-all.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -938,7 +938,7 @@ void kvm_init_irq_routing(KVMState *s) { int gsi_count, i; - gsi_count = kvm_check_extension(s, KVM_CAP_IRQ_ROUTING); + gsi_count = kvm_check_extension(s, KVM_CAP_IRQ_ROUTING) - 1; if (gsi_count > 0) { unsigned int gsi_bits, i; |