ARM: OMAP2+: Fix l2_inv_api_params for rodata
We don't want to write to .text, so let's move l2_inv_api_params
to .data and access it via a pointer.
Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.0+
Fixes: 1e6b48116a
("ARM: mm: allow non-text sections to be
non-executable")
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Родитель
a5311d4d13
Коммит
0a0b132755
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@ -436,12 +436,14 @@ skipl2dis:
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and r1, #0x700
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cmp r1, #0x300
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beq l2_inv_gp
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adr r0, l2_inv_api_params_offset
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ldr r3, [r0]
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add r3, r3, r0 @ r3 points to dummy parameters
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mov r0, #40 @ set service ID for PPA
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mov r12, r0 @ copy secure Service ID in r12
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mov r1, #0 @ set task id for ROM code in r1
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mov r2, #4 @ set some flags in r2, r6
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mov r6, #0xff
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adr r3, l2_inv_api_params @ r3 points to dummy parameters
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dsb @ data write barrier
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dmb @ data memory barrier
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smc #1 @ call SMI monitor (smi #1)
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@ -475,8 +477,8 @@ skipl2dis:
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b logic_l1_restore
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.align
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l2_inv_api_params:
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.word 0x1, 0x00
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l2_inv_api_params_offset:
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.long l2_inv_api_params - .
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l2_inv_gp:
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/* Execute smi to invalidate L2 cache */
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mov r12, #0x1 @ set up to invalidate L2
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@ -531,6 +533,10 @@ l2dis_3630_offset:
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l2dis_3630:
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.word 0
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.data
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l2_inv_api_params:
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.word 0x1, 0x00
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/*
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* Internal functions
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*/
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