forked from rpms/qemu-kvm
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
112 lines
3.6 KiB
112 lines
3.6 KiB
From 57bcc768ac7d0614472e60cc2833b74a2a198d29 Mon Sep 17 00:00:00 2001
|
|
From: Steffen Eiden <seiden@linux.ibm.com>
|
|
Date: Wed, 23 Aug 2023 16:22:18 +0200
|
|
Subject: [PATCH 4/5] target/s390x/kvm: Refactor AP functionalities
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
RH-Author: Thomas Huth <thuth@redhat.com>
|
|
RH-MergeRequest: 321: Enable Secure Execution Crypto Passthrough for KVM on s390x
|
|
RH-Bugzilla: 2111390
|
|
RH-Acked-by: Cédric Le Goater <clg@redhat.com>
|
|
RH-Commit: [4/5] 8ab2f8766931fb65a391aab590d0ccabd8ba8909
|
|
|
|
kvm_s390_set_attr() is a misleading name as it only sets attributes for
|
|
the KVM_S390_VM_CRYPTO group. Therefore, rename it to
|
|
kvm_s390_set_crypto_attr().
|
|
|
|
Add new functions ap_available() and ap_enabled() to avoid code
|
|
duplication later.
|
|
|
|
Reviewed-by: Thomas Huth <thuth@redhat.com>
|
|
Reviewed-by: Michael Mueller <mimu@linux.ibm.com>
|
|
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
|
|
Message-ID: <20230823142219.1046522-5-seiden@linux.ibm.com>
|
|
Signed-off-by: Thomas Huth <thuth@redhat.com>
|
|
(cherry picked from commit 354383c12294f2ee510204cfdc5aaed9f0c42171)
|
|
---
|
|
target/s390x/kvm/kvm.c | 24 +++++++++++++++++-------
|
|
1 file changed, 17 insertions(+), 7 deletions(-)
|
|
|
|
diff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c
|
|
index 8d36c377b5..eb8ca4c780 100644
|
|
--- a/target/s390x/kvm/kvm.c
|
|
+++ b/target/s390x/kvm/kvm.c
|
|
@@ -251,7 +251,7 @@ static void kvm_s390_enable_cmma(void)
|
|
trace_kvm_enable_cmma(rc);
|
|
}
|
|
|
|
-static void kvm_s390_set_attr(uint64_t attr)
|
|
+static void kvm_s390_set_crypto_attr(uint64_t attr)
|
|
{
|
|
struct kvm_device_attr attribute = {
|
|
.group = KVM_S390_VM_CRYPTO,
|
|
@@ -276,7 +276,7 @@ static void kvm_s390_init_aes_kw(void)
|
|
}
|
|
|
|
if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO, attr)) {
|
|
- kvm_s390_set_attr(attr);
|
|
+ kvm_s390_set_crypto_attr(attr);
|
|
}
|
|
}
|
|
|
|
@@ -290,7 +290,7 @@ static void kvm_s390_init_dea_kw(void)
|
|
}
|
|
|
|
if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO, attr)) {
|
|
- kvm_s390_set_attr(attr);
|
|
+ kvm_s390_set_crypto_attr(attr);
|
|
}
|
|
}
|
|
|
|
@@ -2297,6 +2297,17 @@ static int configure_cpu_subfunc(const S390FeatBitmap features)
|
|
return kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attr);
|
|
}
|
|
|
|
+static bool ap_available(void)
|
|
+{
|
|
+ return kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO,
|
|
+ KVM_S390_VM_CRYPTO_ENABLE_APIE);
|
|
+}
|
|
+
|
|
+static bool ap_enabled(const S390FeatBitmap features)
|
|
+{
|
|
+ return test_bit(S390_FEAT_AP, features);
|
|
+}
|
|
+
|
|
static int kvm_to_feat[][2] = {
|
|
{ KVM_S390_VM_CPU_FEAT_ESOP, S390_FEAT_ESOP },
|
|
{ KVM_S390_VM_CPU_FEAT_SIEF2, S390_FEAT_SIE_F2 },
|
|
@@ -2476,8 +2487,7 @@ void kvm_s390_get_host_cpu_model(S390CPUModel *model, Error **errp)
|
|
return;
|
|
}
|
|
/* for now, we can only provide the AP feature with HW support */
|
|
- if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO,
|
|
- KVM_S390_VM_CRYPTO_ENABLE_APIE)) {
|
|
+ if (ap_available()) {
|
|
set_bit(S390_FEAT_AP, model->features);
|
|
}
|
|
|
|
@@ -2503,7 +2513,7 @@ static void kvm_s390_configure_apie(bool interpret)
|
|
KVM_S390_VM_CRYPTO_DISABLE_APIE;
|
|
|
|
if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO, attr)) {
|
|
- kvm_s390_set_attr(attr);
|
|
+ kvm_s390_set_crypto_attr(attr);
|
|
}
|
|
}
|
|
|
|
@@ -2565,7 +2575,7 @@ void kvm_s390_apply_cpu_model(const S390CPUModel *model, Error **errp)
|
|
kvm_s390_enable_cmma();
|
|
}
|
|
|
|
- if (test_bit(S390_FEAT_AP, model->features)) {
|
|
+ if (ap_enabled(model->features)) {
|
|
kvm_s390_configure_apie(true);
|
|
}
|
|
}
|
|
--
|
|
2.41.0
|
|
|