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authorNicholas Piggin <npiggin@gmail.com>2018-02-21 05:08:29 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2018-04-01 00:47:50 +1100
commit471d7ff8b51b63521c8ea35c51966ab4caa434ee (patch)
tree697babe0784be6808eeb49f12cba44dc937af05e /arch/powerpc/kvm/emulate.c
parent3735eb850e6c3e7472329fea368e7d030a4d89dd (diff)
powerpc/64s: Remove POWER4 support
POWER4 has been broken since at least the change 49d09bf2a6 ("powerpc/64s: Optimise MSR handling in exception handling"), which requires mtmsrd L=1 support. This was introduced in ISA v2.01, and POWER4 supports ISA v2.00. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kvm/emulate.c')
-rw-r--r--arch/powerpc/kvm/emulate.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 4d8b4d6cebff..fa888bfc347e 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -45,12 +45,6 @@ void kvmppc_emulate_dec(struct kvm_vcpu *vcpu)
#ifdef CONFIG_PPC_BOOK3S
/* mtdec lowers the interrupt line when positive. */
kvmppc_core_dequeue_dec(vcpu);
-
- /* POWER4+ triggers a dec interrupt if the value is < 0 */
- if (vcpu->arch.dec & 0x80000000) {
- kvmppc_core_queue_dec(vcpu);
- return;
- }
#endif
#ifdef CONFIG_BOOKE