KVM: PPC: Book3s: Remove real mode interrupt controller hcalls handlers

Currently we have 2 sets of interrupt controller hypercalls handlers
for real and virtual modes, this is from POWER8 times when switching
MMU on was considered an expensive operation.

POWER9 however does not have dependent threads and MMU is enabled for
handling hcalls so the XIVE native or XICS-on-XIVE real mode handlers
never execute on real P9 and later CPUs.

This untemplate the handlers and only keeps the real mode handlers for
XICS native (up to POWER8) and remove the rest of dead code. Changes
in functions are mechanical except few missing empty lines to make
checkpatch.pl happy.

The default implemented hcalls list already contains XICS hcalls so
no change there.

This should not cause any behavioral change.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220509071150.181250-1-aik@ozlabs.ru

1 files changed, 0 insertions, 64 deletions

diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 7e52d0beee77..88a8f6473c4e 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -489,70 +489,6 @@ static long kvmppc_read_one_intr(bool *again)
 	return kvmppc_check_passthru(xisr, xirr, again);
 }
 
-#ifdef CONFIG_KVM_XICS
-unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu)
-{
-	if (!kvmppc_xics_enabled(vcpu))
-		return H_TOO_HARD;
-	if (xics_on_xive())
-		return xive_rm_h_xirr(vcpu);
-	else
-		return xics_rm_h_xirr(vcpu);
-}
-
-unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu)
-{
-	if (!kvmppc_xics_enabled(vcpu))
-		return H_TOO_HARD;
-	vcpu->arch.regs.gpr[5] = get_tb();
-	if (xics_on_xive())
-		return xive_rm_h_xirr(vcpu);
-	else
-		return xics_rm_h_xirr(vcpu);
-}
-
-unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server)
-{
-	if (!kvmppc_xics_enabled(vcpu))
-		return H_TOO_HARD;
-	if (xics_on_xive())
-		return xive_rm_h_ipoll(vcpu, server);
-	else
-		return H_TOO_HARD;
-}
-
-int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
-		    unsigned long mfrr)
-{
-	if (!kvmppc_xics_enabled(vcpu))
-		return H_TOO_HARD;
-	if (xics_on_xive())
-		return xive_rm_h_ipi(vcpu, server, mfrr);
-	else
-		return xics_rm_h_ipi(vcpu, server, mfrr);
-}
-
-int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr)
-{
-	if (!kvmppc_xics_enabled(vcpu))
-		return H_TOO_HARD;
-	if (xics_on_xive())
-		return xive_rm_h_cppr(vcpu, cppr);
-	else
-		return xics_rm_h_cppr(vcpu, cppr);
-}
-
-int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr)
-{
-	if (!kvmppc_xics_enabled(vcpu))
-		return H_TOO_HARD;
-	if (xics_on_xive())
-		return xive_rm_h_eoi(vcpu, xirr);
-	else
-		return xics_rm_h_eoi(vcpu, xirr);
-}
-#endif /* CONFIG_KVM_XICS */
-
 void kvmppc_bad_interrupt(struct pt_regs *regs)
 {
 	/*