ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15

BugLink: https://bugs.launchpad.net/bugs/1836426
Commit 3c908e16396d130608e831b7fac4b167a2ede6ba upstream.

Include Brahma B15 in the Spectre v2 KVM workarounds.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
index 082b2861926df58aedab01883debbddb81db882a..ca62f95f3b4c95664acd7c39bf4a5112b28dfca2 100644 (file)
--- a/arch/arm/include/asm/kvm_mmu.h
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -255,6 +255,7 @@ static inline void *kvm_get_hyp_vector(void)
                return kvm_ksym_ref(__kvm_hyp_vector_bp_inv);
        }
 
+       case ARM_CPU_PART_BRAHMA_B15:
        case ARM_CPU_PART_CORTEX_A15:
        {
                extern char __kvm_hyp_vector_ic_inv[];