diff mbox series

[v4,05/46] KVM: PPC: Book3S HV: Remove redundant mtspr PSPB

Message ID 20210323010305.1045293-6-npiggin@gmail.com
State New
Headers show
Series KVM: PPC: Book3S: C-ify the P9 entry/exit code | expand

Commit Message

Nicholas Piggin March 23, 2021, 1:02 a.m. UTC 
This SPR is set to 0 twice when exiting the guest.

Suggested-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 arch/powerpc/kvm/book3s_hv.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Paul Mackerras March 31, 2021, 4:35 a.m. UTC | #1 
On Tue, Mar 23, 2021 at 11:02:24AM +1000, Nicholas Piggin wrote:
> This SPR is set to 0 twice when exiting the guest.
> 
> Suggested-by: Fabiano Rosas <farosas@linux.ibm.com>
> Reviewed-by: Daniel Axtens <dja@axtens.net>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

Acked-by: Paul Mackerras <paulus@ozlabs.org>
diff mbox series

Patch

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 1ffb0902e779..7cfaabab2c20 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3781,7 +3781,6 @@  static int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit,
 	mtspr(SPRN_DSCR, host_dscr);
 	mtspr(SPRN_TIDR, host_tidr);
 	mtspr(SPRN_IAMR, host_iamr);
-	mtspr(SPRN_PSPB, 0);
 
 	if (host_amr != vcpu->arch.amr)
 		mtspr(SPRN_AMR, host_amr);