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KVM: arm64: Rewrite sysreg alternatives to static keys 

As we are about to move calls around in the sysreg save/restore logic,
let's first rewrite the alternative function callers, because it is
going to make the next patches much easier to read.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Christoffer Dall 2017-10-10 22:01:06 +02:00 committed by Marc Zyngier
parent 060701f04a
commit 2b88104467
1 changed files with 4 additions and 13 deletions
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17
arch/arm64/kvm/hyp/sysreg-sr.c
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@ -22,9 +22,6 @@
#include <asm/kvm_emulate.h>
#include <asm/kvm_hyp.h>
/* Yes, this does nothing, on purpose */
static void __hyp_text __sysreg_do_nothing(struct kvm_cpu_context *ctxt) { }
/*
* Non-VHE: Both host and guest must save everything.
*
@ -81,13 +78,10 @@ static void __hyp_text __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
ctxt->sys_regs[DISR_EL1] = read_sysreg_s(SYS_VDISR_EL2);
}
static hyp_alternate_select(__sysreg_call_save_host_state,
__sysreg_save_el1_state, __sysreg_do_nothing,
ARM64_HAS_VIRT_HOST_EXTN);
void __hyp_text __sysreg_save_host_state(struct kvm_cpu_context *ctxt)
{
__sysreg_call_save_host_state()(ctxt);
if (!has_vhe())
__sysreg_save_el1_state(ctxt);
__sysreg_save_common_state(ctxt);
__sysreg_save_user_state(ctxt);
}
@ -148,13 +142,10 @@ static void __hyp_text __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt)
write_sysreg_s(ctxt->sys_regs[DISR_EL1], SYS_VDISR_EL2);
}
static hyp_alternate_select(__sysreg_call_restore_host_state,
__sysreg_restore_el1_state, __sysreg_do_nothing,
ARM64_HAS_VIRT_HOST_EXTN);
void __hyp_text __sysreg_restore_host_state(struct kvm_cpu_context *ctxt)
{
__sysreg_call_restore_host_state()(ctxt);
if (!has_vhe())
__sysreg_restore_el1_state(ctxt);
__sysreg_restore_common_state(ctxt);
__sysreg_restore_user_state(ctxt);
}