From: David Gibson <david@gibson.dropbear.id.au>
To: pasic@linux.ibm.com, brijesh.singh@amd.com, pair@us.ibm.com,
dgilbert@redhat.com, qemu-devel@nongnu.org
Cc: andi.kleen@intel.com, qemu-ppc@nongnu.org,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Marcelo Tosatti" <mtosatti@redhat.com>,
"David Gibson" <david@gibson.dropbear.id.au>,
"Greg Kurz" <groug@kaod.org>,
frankja@linux.ibm.com, thuth@redhat.com,
"Christian Borntraeger" <borntraeger@de.ibm.com>,
mdroth@linux.vnet.ibm.com, richard.henderson@linaro.org,
kvm@vger.kernel.org, "Daniel P. Berrangé" <berrange@redhat.com>,
"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
david@redhat.com, "Cornelia Huck" <cohuck@redhat.com>,
mst@redhat.com, qemu-s390x@nongnu.org,
pragyansri.pathi@intel.com, jun.nakajima@intel.com
Subject: [PATCH v6 11/13] spapr: PEF: prevent migration
Date: Tue, 12 Jan 2021 15:45:06 +1100 [thread overview]
Message-ID: <20210112044508.427338-12-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20210112044508.427338-1-david@gibson.dropbear.id.au>
We haven't yet implemented the fairly involved handshaking that will be
needed to migrate PEF protected guests. For now, just use a migration
blocker so we get a meaningful error if someone attempts this (this is the
same approach used by AMD SEV).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
hw/ppc/pef.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/ppc/pef.c b/hw/ppc/pef.c
index b227dc6905..822668d9ae 100644
--- a/hw/ppc/pef.c
+++ b/hw/ppc/pef.c
@@ -38,6 +38,8 @@ struct PefGuestState {
};
#ifdef CONFIG_KVM
+static Error *pef_mig_blocker;
+
static int kvmppc_svm_init(Error **errp)
{
if (!kvm_check_extension(kvm_state, KVM_CAP_PPC_SECURE_GUEST)) {
@@ -54,6 +56,11 @@ static int kvmppc_svm_init(Error **errp)
}
}
+ /* add migration blocker */
+ error_setg(&pef_mig_blocker, "PEF: Migration is not implemented");
+ /* NB: This can fail if --only-migratable is used */
+ migrate_add_blocker(pef_mig_blocker, &error_fatal);
+
return 0;
}
--
2.29.2
next prev parent reply other threads:[~2021-01-12 4:46 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-12 4:44 [PATCH v6 00/13] Generalize memory encryption models David Gibson
2021-01-12 4:44 ` [PATCH v6 01/13] qom: Allow optional sugar props David Gibson
2021-01-12 4:44 ` [PATCH v6 02/13] confidential guest support: Introduce new confidential guest support class David Gibson
2021-01-12 9:46 ` Daniel P. Berrangé
2021-01-13 2:09 ` David Gibson
2021-01-12 4:44 ` [PATCH v6 03/13] sev: Remove false abstraction of flash encryption David Gibson
2021-01-12 4:44 ` [PATCH v6 04/13] confidential guest support: Move side effect out of machine_set_memory_encryption() David Gibson
2021-01-12 4:45 ` [PATCH v6 05/13] confidential guest support: Rework the "memory-encryption" property David Gibson
[not found] ` <20210112115959.2c042dbb@bahia.lan>
2021-01-13 0:50 ` David Gibson
2021-01-13 12:03 ` Dr. David Alan Gilbert
2021-01-12 4:45 ` [PATCH v6 06/13] sev: Add Error ** to sev_kvm_init() David Gibson
2021-01-12 4:45 ` [PATCH v6 07/13] confidential guest support: Introduce cgs "ready" flag David Gibson
2021-01-12 4:45 ` [PATCH v6 08/13] confidential guest support: Move SEV initialization into arch specific code David Gibson
2021-01-12 4:45 ` [PATCH v6 09/13] confidential guest support: Update documentation David Gibson
2021-01-12 4:45 ` [PATCH v6 10/13] spapr: Add PEF based confidential guest support David Gibson
2021-01-12 7:56 ` Christian Borntraeger
2021-01-12 8:36 ` David Gibson
2021-01-12 9:52 ` Daniel P. Berrangé
2021-01-12 9:56 ` Daniel P. Berrangé
2021-01-13 0:52 ` David Gibson
[not found] ` <20210112122750.5dcd995c@bahia.lan>
2021-01-13 0:56 ` David Gibson
2021-01-12 4:45 ` David Gibson [this message]
2021-01-12 4:45 ` [PATCH v6 12/13] confidential guest support: Alter virtio default properties for protected guests David Gibson
2021-01-12 4:45 ` [PATCH v6 13/13] s390: Recognize confidential-guest-support option David Gibson
2021-01-12 8:15 ` Christian Borntraeger
2021-01-12 11:36 ` Cornelia Huck
2021-01-12 11:48 ` Christian Borntraeger
2021-01-12 11:49 ` Daniel P. Berrangé
2021-01-13 0:57 ` David Gibson
2021-01-13 6:57 ` Christian Borntraeger
2021-01-13 23:56 ` David Gibson
2021-01-12 9:54 ` Daniel P. Berrangé
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