qemu/include
Greg Kurz 41264b385c PPC/KVM: early validation of vcpu id
The KVM API restricts vcpu ids to be < KVM_CAP_MAX_VCPUS. On PowerPC
targets, depending on the number of threads per core in the host and
in the guest, some topologies do generate higher vcpu ids actually.
When this happens, QEMU bails out with the following error:

kvm_init_vcpu failed: Invalid argument

The KVM_CREATE_VCPU ioctl has several EINVAL return paths, so it is
not possible to fully disambiguate.

This patch adds a check in the code that computes vcpu ids, so that
we can detect the error earlier, and print a friendlier message instead
of calling KVM_CREATE_VCPU with an obviously bogus vcpu id.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-05-27 09:40:23 +10:00
..
block blockjob: Remove BlockJob.bs 2016-05-25 19:04:21 +02:00
crypto Fix some typos found by codespell 2016-05-18 15:04:27 +03:00
disas qemu-common: push cpu.h inclusion out of qemu-common.h 2016-05-19 16:42:29 +02:00
exec memory: Remove code for mr->may_overlap 2016-05-23 16:53:44 +02:00
fpu include: Clean up includes 2016-02-23 12:43:05 +00:00
hw memory: Fix IOMMU replay base address 2016-05-26 11:12:08 -06:00
io Fix some typos found by codespell 2016-05-18 15:04:27 +03:00
libdecnumber include: Clean up includes 2016-02-23 12:43:05 +00:00
migration migration: remove qemu_get_fd method from QEMUFile 2016-05-26 11:32:21 +05:30
monitor Use scripts/clean-includes to drop redundant qemu/typedefs.h 2016-03-22 22:20:16 +01:00
net Use scripts/clean-includes to drop redundant qemu/typedefs.h 2016-03-22 22:20:16 +01:00
qapi migration: add reporting of errors for outgoing migration 2016-05-26 11:31:30 +05:30
qemu migration: delete QEMUSizedBuffer struct 2016-05-26 11:31:58 +05:30
qom cpu: move exec-all.h inclusion out of cpu.h 2016-05-19 16:42:29 +02:00
standard-headers update Linux headers to 4.6 2016-04-05 11:46:52 +02:00
sysemu PPC/KVM: early validation of vcpu id 2016-05-27 09:40:23 +10:00
ui spice: Initialization stubs on qemu-spice.h 2016-05-20 14:28:53 -03:00
elf.h include: Clean up includes 2016-02-23 12:43:05 +00:00
glib-compat.h glib: add compatibility interface for g_hash_table_add() 2015-10-30 09:01:03 +01:00
qemu-common.h qemu-common: push cpu.h inclusion out of qemu-common.h 2016-05-19 16:42:29 +02:00
qemu-io.h qemu-io: Use BlockBackend 2015-02-16 15:07:19 +00:00
trace-tcg.h trace: [tcg] Generate TCG tracing routines 2014-08-12 14:26:12 +01:00
trace.h trace: [tcg] Include event definitions in "trace.h" 2014-08-12 14:26:12 +01:00