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The secondary CPU start C routine uses nodat_stack as a interim stack before finally switching to kernel_stack. Such scheme is superfluous, since the assembler restart interrupt handler (that secondary CPU starter is called from) does not need to use any stack for switching into DAT mode. Once DAT is on, any stack including virtually- mapped one could be used. Avoid the use of nodat_stack and smp_start_secondary() helper. Instead, initiate kernel_stack directly from the restart interrupt handler. Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
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| appldata | ||
| boot | ||
| configs | ||
| crypto | ||
| hypfs | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| mm | ||
| net | ||
| pci | ||
| purgatory | ||
| tools | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||