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From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: Daniel Axtens <dja@axtens.net>,
	linuxppc-dev@lists.ozlabs.org,
	Nicholas Piggin <npiggin@gmail.com>,
	Fabiano Rosas <farosas@linux.ibm.com>
Subject: [PATCH v1 06/12] KVM: PPC: Book3S HV: Remove redundant mtspr PSPB
Date: Mon, 12 Apr 2021 11:48:39 +1000	[thread overview]
Message-ID: <20210412014845.1517916-7-npiggin@gmail.com> (raw)
In-Reply-To: <20210412014845.1517916-1-npiggin@gmail.com>

This SPR is set to 0 twice when exiting the guest.

Acked-by: Paul Mackerras <paulus@ozlabs.org>
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(-)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 70c6e9c27eb7..b88df175aa76 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3790,7 +3790,6 @@ 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);
-- 
2.23.0


WARNING: multiple messages have this Message-ID (diff)
From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: Daniel Axtens <dja@axtens.net>,
	linuxppc-dev@lists.ozlabs.org,
	Nicholas Piggin <npiggin@gmail.com>,
	Fabiano Rosas <farosas@linux.ibm.com>
Subject: [PATCH v1 06/12] KVM: PPC: Book3S HV: Remove redundant mtspr PSPB
Date: Mon, 12 Apr 2021 01:48:39 +0000	[thread overview]
Message-ID: <20210412014845.1517916-7-npiggin@gmail.com> (raw)
In-Reply-To: <20210412014845.1517916-1-npiggin@gmail.com>

This SPR is set to 0 twice when exiting the guest.

Acked-by: Paul Mackerras <paulus@ozlabs.org>
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(-)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 70c6e9c27eb7..b88df175aa76 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3790,7 +3790,6 @@ 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);
-- 
2.23.0

  parent reply	other threads:[~2021-04-12  1:52 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-12  1:48 [PATCH v1 00/12] minor KVM fixes and cleanups Nicholas Piggin
2021-04-12  1:48 ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 01/12] KVM: PPC: Book3S HV P9: Restore host CTRL SPR after guest exit Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12 14:06   ` Fabiano Rosas
2021-04-12 14:06     ` Fabiano Rosas
2021-04-13  1:25     ` Nicholas Piggin
2021-04-13  1:25       ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 02/12] KVM: PPC: Book3S HV: Nested move LPCR sanitising to sanitise_hv_regs Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 03/12] KVM: PPC: Book3S HV: Add a function to filter guest LPCR bits Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 04/12] KVM: PPC: Book3S HV: Disallow LPCR[AIL] to be set to 1 or 2 Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 05/12] KVM: PPC: Book3S HV: Prevent radix guests setting LPCR[TC] Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` Nicholas Piggin [this message]
2021-04-12  1:48   ` [PATCH v1 06/12] KVM: PPC: Book3S HV: Remove redundant mtspr PSPB Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 07/12] KVM: PPC: Book3S HV: remove unused kvmppc_h_protect argument Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 08/12] KVM: PPC: Book3S HV: Fix CONFIG_SPAPR_TCE_IOMMU=n default hcalls Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 09/12] powerpc/64s: Remove KVM handler support from CBE_RAS interrupts Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 10/12] powerpc/64s: remove KVM SKIP test from instruction breakpoint handler Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 11/12] KVM: PPC: Book3S HV: Ensure MSR[ME] is always set in guest MSR Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-12  1:48 ` [PATCH v1 12/12] KVM: PPC: Book3S HV: Ensure MSR[HV] is always clear " Nicholas Piggin
2021-04-12  1:48   ` Nicholas Piggin
2021-04-16 18:34   ` Fabiano Rosas
2021-04-16 18:34     ` Fabiano Rosas
2021-04-19  3:59 ` [PATCH v1 00/12] minor KVM fixes and cleanups Michael Ellerman
2021-04-19  3:59   ` Michael Ellerman

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