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arm: kvm: move kvm_vgic_global_state out of .text section

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The kvm_vgic_global_state struct contains a static key which is
written to by jump_label_init() at boot time. So in preparation of
making .text regions truly (well, almost truly) read-only, mark
kvm_vgic_global_state __ro_after_init so it moves to the .rodata
section instead.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Ard Biesheuvel 2017-03-09 21:51:59 +01:00 committed by Catalin Marinas
parent 3b3c6c24de
commit 63d7c6afc5
1 changed files with 3 additions and 1 deletions
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4
virt/kvm/arm/vgic/vgic.c
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@ -29,7 +29,9 @@
#define DEBUG_SPINLOCK_BUG_ON(p)
#endif
struct vgic_global __section(.hyp.text) kvm_vgic_global_state = {.gicv3_cpuif = STATIC_KEY_FALSE_INIT,};
struct vgic_global kvm_vgic_global_state __ro_after_init = {
.gicv3_cpuif = STATIC_KEY_FALSE_INIT,
};
/*
* Locking order is always: