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From: Claudio Imbrenda <imbrenda@linux.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org,
	borntraeger@de.ibm.com, frankja@linux.ibm.com, david@kernel.org,
	seiden@linux.ibm.com, nrb@linux.ibm.com,
	schlameuss@linux.ibm.com, gra@linux.ibm.com
Subject: [PATCH v2 7/9] KVM: s390: Fix kvm_s390_clear_pv_state()
Date: Wed, 12 Aug 2026 12:44:34 +0200	[thread overview]
Message-ID: <20260812104436.109741-8-imbrenda@linux.ibm.com> (raw)
In-Reply-To: <20260812104436.109741-1-imbrenda@linux.ibm.com>

kvm_s390_clear_pv_state() needs to also clear the dumping flag, to
allow the protected VM to be started again (as non-protected, with all
protected state safely destroyed) after a forced reboot while a
protected dump was ongoing and not completed.

Fixes: e40df9efd68a ("KVM: s390: pv: clear the state without memset")
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
---
 arch/s390/kvm/pv.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/s390/kvm/pv.c b/arch/s390/kvm/pv.c
index b02e0159d3cd..98a9a57f71b9 100644
--- a/arch/s390/kvm/pv.c
+++ b/arch/s390/kvm/pv.c
@@ -242,6 +242,10 @@ static void kvm_s390_clear_pv_state(struct kvm *kvm)
 	kvm->arch.pv.guest_len = 0;
 	kvm->arch.pv.stor_base = 0;
 	kvm->arch.pv.stor_var = NULL;
+	if (kvm->arch.pv.dumping) {
+		kvm_s390_vcpu_unblock_all(kvm);
+		kvm->arch.pv.dumping = false;
+	}
 }
 
 static void kvm_s390_pv_dispose_cpu(struct kvm_vcpu *vcpu, bool free_stor_base)
-- 
2.55.0


  parent reply	other threads:[~2026-08-12 10:44 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-12 10:44 [PATCH v2 0/9] KVM: s390: And then... even more fixes again Claudio Imbrenda
2026-08-12 10:44 ` [PATCH v2 1/9] KVM: s390: Properly handle NULL pointer in dat_cond_set_storage_key() Claudio Imbrenda
2026-08-12 10:55   ` sashiko-bot
2026-08-12 10:44 ` [PATCH v2 2/9] KVM: s390: Use srcu in kvm_arch_vcpu_unlocked_ioctl() Claudio Imbrenda
2026-08-12 10:58   ` sashiko-bot
2026-08-12 11:02   ` Christoph Schlameuss
2026-08-12 10:44 ` [PATCH v2 3/9] KVM: s390: Fix get_all_floating_irqs() Claudio Imbrenda
2026-08-12 10:55   ` Christian Borntraeger
2026-08-12 10:55   ` sashiko-bot
2026-08-12 14:06   ` Christoph Schlameuss
2026-08-12 10:44 ` [PATCH v2 4/9] KVM: s390: Fix dirty marking in adapter_indicators_set*() Claudio Imbrenda
2026-08-12 11:00   ` sashiko-bot
2026-08-12 11:03   ` Christian Borntraeger
2026-08-12 11:37     ` Claudio Imbrenda
2026-08-12 10:44 ` [PATCH v2 5/9] KVM: s390: Fix pgste_get_trylock_multiple() Claudio Imbrenda
2026-08-12 10:50   ` sashiko-bot
2026-08-12 11:11   ` Christoph Schlameuss
2026-08-12 10:44 ` [PATCH v2 6/9] KVM: s390: Fix IRQ injection with SIGP Stop and Store Status Claudio Imbrenda
2026-08-12 10:53   ` sashiko-bot
2026-08-12 12:59   ` Christoph Schlameuss
2026-08-12 13:11     ` Claudio Imbrenda
2026-08-12 13:23       ` Christoph Schlameuss
2026-08-12 10:44 ` Claudio Imbrenda [this message]
2026-08-12 10:53   ` [PATCH v2 7/9] KVM: s390: Fix kvm_s390_clear_pv_state() sashiko-bot
2026-08-12 13:02   ` Christoph Schlameuss
2026-08-12 10:44 ` [PATCH v2 8/9] KVM: s390: Fix potential tiny kernel stack leak Claudio Imbrenda
2026-08-12 10:53   ` sashiko-bot
2026-08-12 13:14   ` Christoph Schlameuss
2026-08-12 10:44 ` [PATCH v2 9/9] KVM: s390: Fix _gaccess_shadow_fault() Claudio Imbrenda
2026-08-12 11:47   ` sashiko-bot

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