mirror of https://gitee.com/openkylin/qemu.git
dcddc75e47
The sclp scp read info call fills in a buffer with information about the system. With more than 248 CPUs we overflow the 4k buffer of the SCCB, leading to random data corruption. Basically ALL guest operating systems call scp read info, so let's limit the machines to 248 CPUs to make it obvious that >=249 does not work. As KVM also limits itself to 248 and TCG on s390 does not support SMP, this should cause no regression for any user as no VMs with more than 248 VCPUs were ever possible. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> |
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| .. | ||
| Makefile.objs | ||
| css.c | ||
| event-facility.c | ||
| ipl.c | ||
| ipl.h | ||
| s390-pci-bus.c | ||
| s390-pci-bus.h | ||
| s390-pci-inst.c | ||
| s390-pci-inst.h | ||
| s390-skeys-kvm.c | ||
| s390-skeys.c | ||
| s390-virtio-ccw.c | ||
| s390-virtio-hcall.c | ||
| s390-virtio.c | ||
| s390-virtio.h | ||
| sclp.c | ||
| sclpcpu.c | ||
| sclpquiesce.c | ||
| virtio-ccw.c | ||
| virtio-ccw.h | ||