From: Marc Zyngier <maz@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>,
Andrew Jones <drjones@redhat.com>,
Eric Auger <eric.auger@redhat.com>, Gavin Shan <gshan@redhat.com>,
Steven Price <steven.price@arm.com>,
kernel-team@android.com, linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Subject: [PATCH 1/9] KVM: arm64: pvtime: steal-time is only supported when configured
Date: Fri, 4 Sep 2020 11:45:22 +0100 [thread overview]
Message-ID: <20200904104530.1082676-2-maz@kernel.org> (raw)
In-Reply-To: <20200904104530.1082676-1-maz@kernel.org>
From: Andrew Jones <drjones@redhat.com>
Don't confuse the guest by saying steal-time is supported when
it hasn't been configured by userspace and won't work.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200804170604.42662-2-drjones@redhat.com
---
arch/arm64/kvm/pvtime.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/pvtime.c b/arch/arm64/kvm/pvtime.c
index f7b52ce1557e..c3ef4ebd6846 100644
--- a/arch/arm64/kvm/pvtime.c
+++ b/arch/arm64/kvm/pvtime.c
@@ -43,7 +43,8 @@ long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu)
switch (feature) {
case ARM_SMCCC_HV_PV_TIME_FEATURES:
case ARM_SMCCC_HV_PV_TIME_ST:
- val = SMCCC_RET_SUCCESS;
+ if (vcpu->arch.steal.base != GPA_INVALID)
+ val = SMCCC_RET_SUCCESS;
break;
}
--
2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, kernel-team@android.com,
Steven Price <steven.price@arm.com>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/9] KVM: arm64: pvtime: steal-time is only supported when configured
Date: Fri, 4 Sep 2020 11:45:22 +0100 [thread overview]
Message-ID: <20200904104530.1082676-2-maz@kernel.org> (raw)
In-Reply-To: <20200904104530.1082676-1-maz@kernel.org>
From: Andrew Jones <drjones@redhat.com>
Don't confuse the guest by saying steal-time is supported when
it hasn't been configured by userspace and won't work.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200804170604.42662-2-drjones@redhat.com
---
arch/arm64/kvm/pvtime.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/pvtime.c b/arch/arm64/kvm/pvtime.c
index f7b52ce1557e..c3ef4ebd6846 100644
--- a/arch/arm64/kvm/pvtime.c
+++ b/arch/arm64/kvm/pvtime.c
@@ -43,7 +43,8 @@ long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu)
switch (feature) {
case ARM_SMCCC_HV_PV_TIME_FEATURES:
case ARM_SMCCC_HV_PV_TIME_ST:
- val = SMCCC_RET_SUCCESS;
+ if (vcpu->arch.steal.base != GPA_INVALID)
+ val = SMCCC_RET_SUCCESS;
break;
}
--
2.27.0
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andrew Jones <drjones@redhat.com>, Gavin Shan <gshan@redhat.com>,
kvm@vger.kernel.org, kernel-team@android.com,
Steven Price <steven.price@arm.com>,
Eric Auger <eric.auger@redhat.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/9] KVM: arm64: pvtime: steal-time is only supported when configured
Date: Fri, 4 Sep 2020 11:45:22 +0100 [thread overview]
Message-ID: <20200904104530.1082676-2-maz@kernel.org> (raw)
In-Reply-To: <20200904104530.1082676-1-maz@kernel.org>
From: Andrew Jones <drjones@redhat.com>
Don't confuse the guest by saying steal-time is supported when
it hasn't been configured by userspace and won't work.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200804170604.42662-2-drjones@redhat.com
---
arch/arm64/kvm/pvtime.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/pvtime.c b/arch/arm64/kvm/pvtime.c
index f7b52ce1557e..c3ef4ebd6846 100644
--- a/arch/arm64/kvm/pvtime.c
+++ b/arch/arm64/kvm/pvtime.c
@@ -43,7 +43,8 @@ long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu)
switch (feature) {
case ARM_SMCCC_HV_PV_TIME_FEATURES:
case ARM_SMCCC_HV_PV_TIME_ST:
- val = SMCCC_RET_SUCCESS;
+ if (vcpu->arch.steal.base != GPA_INVALID)
+ val = SMCCC_RET_SUCCESS;
break;
}
--
2.27.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-09-04 10:48 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 10:45 [GIT PULL] KVM/arm64 fixes for 5.9 Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier [this message]
2020-09-04 10:45 ` [PATCH 1/9] KVM: arm64: pvtime: steal-time is only supported when configured Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` [PATCH 2/9] KVM: arm64: pvtime: Fix potential loss of stolen time Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` [PATCH 3/9] KVM: arm64: Drop type input from kvm_put_guest Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` [PATCH 4/9] KVM: arm64: pvtime: Fix stolen time accounting across migration Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` [PATCH 5/9] KVM: Documentation: Minor fixups Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` [PATCH 6/9] arm64/x86: KVM: Introduce steal-time cap Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` [PATCH 7/9] KVM: arm64: Do not try to map PUDs when they are folded into PMD Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-09 3:23 ` Punit Agrawal
2020-09-09 3:23 ` Punit Agrawal
2020-09-09 3:23 ` Punit Agrawal
2020-09-04 10:45 ` [PATCH 8/9] KVM: arm64: Fix address truncation in traces Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` [PATCH 9/9] KVM: arm64: Update page shift if stage 2 block mapping not supported Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-04 10:45 ` Marc Zyngier
2020-09-09 15:20 ` [GIT PULL] KVM/arm64 fixes for 5.9 Paolo Bonzini
2020-09-09 15:20 ` Paolo Bonzini
2020-09-09 15:20 ` Paolo Bonzini
2020-09-09 17:15 ` Marc Zyngier
2020-09-09 17:15 ` Marc Zyngier
2020-09-09 17:15 ` Marc Zyngier
2020-09-09 17:20 ` Paolo Bonzini
2020-09-09 17:20 ` Paolo Bonzini
2020-09-09 17:20 ` Paolo Bonzini
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