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arm64: kvm: Adopt new alternative assembler macros

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Convert the dynamic patching for ARM64_HAS_SYSREG_GIC_CPUIF over to
the newly added alternative assembler macros.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Daniel Thompson 2015-07-22 12:21:04 +01:00 committed by Will Deacon
parent e28cabf123
commit fc032421ef
1 changed files with 10 additions and 2 deletions
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12
arch/arm64/kvm/hyp.S
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@ -810,7 +810,11 @@
* Call into the vgic backend for state saving
*/
.macro save_vgic_state
alternative_insn "bl __save_vgic_v2_state", "bl __save_vgic_v3_state", ARM64_HAS_SYSREG_GIC_CPUIF
alternative_if_not ARM64_HAS_SYSREG_GIC_CPUIF
bl __save_vgic_v2_state
alternative_else
bl __save_vgic_v3_state
alternative_endif
mrs x24, hcr_el2
mov x25, #HCR_INT_OVERRIDE
neg x25, x25
@ -827,7 +831,11 @@
orr x24, x24, #HCR_INT_OVERRIDE
orr x24, x24, x25
msr hcr_el2, x24
alternative_insn "bl __restore_vgic_v2_state", "bl __restore_vgic_v3_state", ARM64_HAS_SYSREG_GIC_CPUIF
alternative_if_not ARM64_HAS_SYSREG_GIC_CPUIF
bl __restore_vgic_v2_state
alternative_else
bl __restore_vgic_v3_state
alternative_endif
.endm
.macro save_timer_state