arm64: kvm: eliminate literal pool entries

Replace two instances of 'ldr xN, =(constant)' in the world switch
hot path with 'mov' instructions.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index b72aa9f..fbe909f 100644 (file)
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -761,10 +761,10 @@
 .macro activate_traps
        ldr     x2, [x0, #VCPU_HCR_EL2]
        msr     hcr_el2, x2
-       ldr     x2, =(CPTR_EL2_TTA)
+       mov     x2, #CPTR_EL2_TTA
        msr     cptr_el2, x2
 
-       ldr     x2, =(1 << 15)  // Trap CP15 Cr=15
+       mov     x2, #(1 << 15)  // Trap CP15 Cr=15
        msr     hstr_el2, x2
 
        mrs     x2, mdcr_el2