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Older Linux kernels will not properly boot in hyp mode, add support for a bootm_boot_mode environment variable, which can be set to "sec" or "nonsec" to force booting in secure or non-secure mode when build with non-sec support. The default behavior can be selected through CONFIG_ARMV7_BOOT_SEC_DEFAULT, when this is set booting in secure mode is the default. The default setting for this Kconfig option is N, preserving the current behavior of booting in non-secure mode by default when non-secure mode is supported. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
34 lines
960 B
Text
34 lines
960 B
Text
if CPU_V7
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config CPU_V7_HAS_NONSEC
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bool
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config CPU_V7_HAS_VIRT
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bool
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config ARMV7_NONSEC
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boolean "Enable support for booting in non-secure mode" if EXPERT
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depends on CPU_V7_HAS_NONSEC
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default y
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---help---
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Say Y here to enable support for booting in non-secure / SVC mode.
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config ARMV7_BOOT_SEC_DEFAULT
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boolean "Boot in secure mode by default" if EXPERT
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depends on ARMV7_NONSEC
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default n
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---help---
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Say Y here to boot in secure mode by default even if non-secure mode
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is supported. This option is useful to boot kernels which do not
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suppport booting in non-secure mode. Only set this if you need it.
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This can be overriden at run-time by setting the bootm_boot_mode env.
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variable to "sec" or "nonsec".
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config ARMV7_VIRT
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boolean "Enable support for hardware virtualization" if EXPERT
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depends on CPU_V7_HAS_VIRT && ARMV7_NONSEC
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default y
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---help---
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Say Y here to boot in hypervisor (HYP) mode when booting non-secure.
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endif
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