| commit | 5ec83c73e5ece590538878b24dfcb422904533e0 | |
| author | Bharata B Rao <bharata@linux.vnet.ibm.com> | |
| Wed, 5 Mar 2014 08:32:36 +0000 (5 14:02 +0530) | ||
| committer | Andreas Färber <afaerber@suse.de> | |
| Thu, 20 Mar 2014 01:39:33 +0000 (20 02:39 +0100) | ||
| tree | 256572056d362bd5cc2a36526972167b4ef2c3f4 | treesnapshot (tar.gz zip) |
| parent | a80172a4762465a40f6b59d10d64360bd272b700 | commitdiff |
target-ppc: Force CPU threads count to be a power of 2
PowerPC kernel expects the number of SMT threads in a core to be a power
of 2. Since QEMU doesn't enforce this, it leads to an early guest kernel
crash if invalid threads count is specified.
Prevent this crash and make it a graceful exit from QEMU itself by
validating the user-supplied threads count.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
PowerPC kernel expects the number of SMT threads in a core to be a power
of 2. Since QEMU doesn't enforce this, it leads to an early guest kernel
crash if invalid threads count is specified.
Prevent this crash and make it a graceful exit from QEMU itself by
validating the user-supplied threads count.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
| target-ppc/translate_init.c | diffblobblamehistory |