Invalidate the Branch Target Buffer (BTB) on entry to EL3 by disabling and enabling the MMU. To achieve this without performing any branch instruction, a per-cpu vbar is installed which executes the workaround and then branches off to the corresponding vector entry in the main vector table. A side effect of this change is that the main vbar is configured before any reset handling. This is to allow the per-cpu reset function to override the vbar setting. This workaround is enabled by default on the affected CPUs. Change-Id: I97788d38463a5840a410e3cea85ed297a1678265 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com> |
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aem_generic.S | ||
cortex_a35.S | ||
cortex_a53.S | ||
cortex_a55.S | ||
cortex_a57.S | ||
cortex_a72.S | ||
cortex_a73.S | ||
cortex_a75.S | ||
cpu_helpers.S | ||
denver.S | ||
workaround_cve_2017_5715_mmu.S |