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+.. _skiboot-6.3.3:
+
+==============
+skiboot-6.3.3
+==============
+
+skiboot 6.3.3 was released on Wednesday Aug 6th, 2019. It replaces
+:ref:`skiboot-6.3.2` as the current stable release in the 6.3.x series.
+
+It is recommended that 6.3.3 be used instead of any previous 6.3.x version
+due to the bug fixes it contains.
+
+Bug fixes included in this release are:
+
+- struct p9_sbe_msg doesn't need to be packed
+
+ Only the reg member is sent anywhere (via xscom_write), so the structure
+ does not need to be packed.
+
+::
+ Fixes GCC9 build problem:
+ hw/sbe-p9.c: In function ‘p9_sbe_msg_send’:
+ hw/sbe-p9.c:270:9: error: taking address of packed member of ‘struct p9_sbe_msg’ may result in an unaligned p
+ ointer value [-Werror=address-of-packed-member]
+ 270 | data = &msg->reg[0];
+ | ^~~~~~~~~~~~
+
+- hdata/vpd: fix printing (char*)0x00
+ GCC9 now catches this bug:
+
+::
+ In file included from hdata/vpd.c:17:
+ In function ‘vpd_vini_parse’,
+ inlined from ‘vpd_data_parse’ at hdata/vpd.c:416:3:
+ /skiboot/include/skiboot.h:93:31: error: ‘%s’ directive argument is null [-Werror=format-overflow=]
+ 93 | #define prlog(l, f, ...) do { _prlog(l, pr_fmt(f), ##__VA_ARGS__); } while(0)
+ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ hdata/vpd.c:390:5: note: in expansion of macro ‘prlog’
+ 390 | prlog(PR_WARNING,
+ | ^~~~~
+ hdata/vpd.c: In function ‘vpd_data_parse’:
+ hdata/vpd.c:391:46: note: format string is defined here
+ 391 | "VPD: CCIN desc not available for: %s\n",
+ | ^~
+ cc1: all warnings being treated as errors
+
+- errorlog: Prevent alignment error building with gcc9.
+
+::
+ Fixes this build error:
+ [ 52s] hw/fsp/fsp-elog-write.c: In function 'opal_elog_read':
+ [ 52s] hw/fsp/fsp-elog-write.c:213:12: error: taking address of packed member of 'struct errorlog' may result
+ in an unaligned pointer value [-Werror=address-of-packed-member]
+ [ 52s] 213 | list_del(&log_data->link);
+ [ 52s] | ^~~~~~~~~~~~~~~
+
+- Support BMC IPMI heartbeat command
+
+ A few years ago, the OpenBMC code added support for a "heartbeat"
+ command to send to the host. This command is used after the BMC is reset
+ to check if the host is running. Support was never added to the host
+ side however so currently when the BMC sends this command, this appears
+ in the host console:
+ IPMI: unknown OEM SEL command ff received
+
+ There is no response needed by the host (other then the low level
+ acknowledge of the command which already occurs). This commit
+ handles the command so the error is no longer printed (does nothing with
+ the command though since no action is needed). Here's the tested output
+ of this patch in the host console (with debug enabled):
+ IPMI: BMC issued heartbeat command: 00
+
+- Add: add mihawk platform file