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| author | Bharata B Rao <bharata@linux.vnet.ibm.com> | 2015-09-01 09:53:52 +1000 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2015-09-23 10:51:09 +1000 |
| commit | e6fc9568c865f2f81499475a4e322cd563fdfd90 (patch) | |
| tree | 7ddd4c2bf817ccfe12d5c3213d06777e97429e38 /include/hw/ppc | |
| parent | aaf87c6616370685a7cff6a21616fc5db7495014 (diff) | |
| download | focaccia-qemu-e6fc9568c865f2f81499475a4e322cd563fdfd90.tar.gz focaccia-qemu-e6fc9568c865f2f81499475a4e322cd563fdfd90.zip | |
spapr_rtas: Prevent QEMU crash during hotplug without a prior device_add
If drmgr is used in the guest to hotplug a device before a device_add has been issued via the QEMU monitor, QEMU segfaults in configure_connector call. This occurs due to accessing of NULL FDT which otherwise would have been created and associated with the DRC during device_add command. Check for NULL FDT and return failure from configure_connector call. As per PAPR+, an error value of -9003 seems appropriate for this failure. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw/ppc')
| -rw-r--r-- | include/hw/ppc/spapr_drc.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/hw/ppc/spapr_drc.h b/include/hw/ppc/spapr_drc.h index 60cda35ed2..28ffeaeb1c 100644 --- a/include/hw/ppc/spapr_drc.h +++ b/include/hw/ppc/spapr_drc.h @@ -119,13 +119,14 @@ typedef enum { } sPAPRDREntitySense; typedef enum { - SPAPR_DR_CC_RESPONSE_NEXT_SIB = 1, /* currently unused */ - SPAPR_DR_CC_RESPONSE_NEXT_CHILD = 2, - SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY = 3, - SPAPR_DR_CC_RESPONSE_PREV_PARENT = 4, - SPAPR_DR_CC_RESPONSE_SUCCESS = 0, - SPAPR_DR_CC_RESPONSE_ERROR = -1, - SPAPR_DR_CC_RESPONSE_CONTINUE = -2, + SPAPR_DR_CC_RESPONSE_NEXT_SIB = 1, /* currently unused */ + SPAPR_DR_CC_RESPONSE_NEXT_CHILD = 2, + SPAPR_DR_CC_RESPONSE_NEXT_PROPERTY = 3, + SPAPR_DR_CC_RESPONSE_PREV_PARENT = 4, + SPAPR_DR_CC_RESPONSE_SUCCESS = 0, + SPAPR_DR_CC_RESPONSE_ERROR = -1, + SPAPR_DR_CC_RESPONSE_CONTINUE = -2, + SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE = -9003, } sPAPRDRCCResponse; typedef void (spapr_drc_detach_cb)(DeviceState *d, void *opaque); |