clean: remove buildinfo/changes
[pve-qemu-kvm.git] / debian / patches / old / cpuid-fix.diff
blob1052ad5c8bca78357357968573a4ad4bbc427027
1 see http://git.kernel.org/?p=virt/kvm/qemu-kvm.git;a=commitdiff;h=8fa3b3ce6e#patch1
3 KVM_GET_SUPPORTED_CPUID has been known to fail to return -E2BIG
4 when it runs out of entries. Detect this by always trying again
5 with a bigger table if the ioctl() fills the table.
7 --- a/kvm/libkvm/libkvm-x86.c
8 +++ b/kvm/libkvm/libkvm-x86.c
9 @@ -575,6 +575,8 @@ static struct kvm_cpuid2 *try_get_cpuid(kvm_context_t kvm, int max)
10 r = ioctl(kvm->fd, KVM_GET_SUPPORTED_CPUID, cpuid);
11 if (r == -1)
12 r = -errno;
13 + else if (r == 0 && cpuid->nent >= max)
14 + r = -E2BIG;
15 if (r < 0) {
16 if (r == -E2BIG) {
17 free(cpuid);