Running QEMU with
qemu-system-ppc64 -M none -nographic -m 256
and executing
dump-guest-memory /dev/null 0 8192
results in segfault
Fix by checking if we have CPU, and exit with
error if there is no CPU:
(qemu) dump-guest-memory /dev/null
this feature or command is not currently supported
Signed-off-by: Laurent Vivier <lviv...@redhat.com>
---
target/ppc/arch_dump.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/target/ppc/arch_dump.c b/target/ppc/arch_dump.c
index 8e9397aa58..95b9ab6f29 100644
--- a/target/ppc/arch_dump.c
+++ b/target/ppc/arch_dump.c
@@ -224,8 +224,15 @@ typedef struct NoteFuncDescStruct NoteFuncDesc;
int cpu_get_dump_info(ArchDumpInfo *info,
const struct GuestPhysBlockList *guest_phys_blocks)
{
- PowerPCCPU *cpu = POWERPC_CPU(first_cpu);
- PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
+ PowerPCCPU *cpu;
+ PowerPCCPUClass *pcc;
+
+ if (first_cpu == NULL) {
+ return -1;
+ }
+
+ cpu = POWERPC_CPU(first_cpu);
+ pcc = POWERPC_CPU_GET_CLASS(cpu);
info->d_machine = PPC_ELF_MACHINE;
info->d_class = ELFCLASS;
--
2.13.5
