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Tsirkin" , Paolo Bonzini , Hendrik Brueckner , kvm@vger.kernel.org, Christoph Schlameuss , Nina Schoetterl-Glausch Subject: Re: [PATCH v2 0/2] s390x/kvm: Add ASTFLE facility 2 for nested virtualization In-Reply-To: <20260324-astfleie2-v2-0-13008712da00@linux.ibm.com> Organization: "Red Hat GmbH, Sitz: Werner-von-Siemens-Ring 12, D-85630 Grasbrunn, Handelsregister: Amtsgericht =?utf-8?Q?M=C3=BCnchen=2C?= HRB 153243, =?utf-8?Q?Gesch=C3=A4ftsf=C3=BChrer=3A?= Ryan Barnhart, Charles Cachera, Avril Crosse O'Flaherty" References: <20260324-astfleie2-v2-0-13008712da00@linux.ibm.com> User-Agent: Notmuch/0.39 (https://notmuchmail.org) Date: Wed, 27 May 2026 14:19:34 +0200 Message-ID: <8733zdniy1.fsf@redhat.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 On Tue, Mar 24 2026, Christoph Schlameuss wrote: > Update the kernel headers to get access to > KVM_S390_VM_CPU_FEAT_ASTFLEIE2 and allow passing the feature through to > guest on IBM z16 onwards. > > Cc: qemu-devel@nongnu.org > Cc: Halil Pasic > Cc: Christian Borntraeger > Cc: Eric Farman > Cc: Matthew Rosato > Cc: Richard Henderson > Cc: Ilya Leoshkevich > Cc: Thomas Huth > Cc: Michael S. Tsirkin > Cc: Cornelia Huck > Cc: Paolo Bonzini > Cc: Hendrik Brueckner > To: qemu-s390x@nongnu.org > Cc: kvm@vger.kernel.org > > Signed-off-by: Christoph Schlameuss > --- > Changes in v2: > - Isolate the linux-header update into its own commit (thanks Thomas) > - Correct naming of the feature (thanks Hendrik) > - Add S390_FEAT_SIE_ASTFLEIE2 to full_GEN16_GA1 only as it depends on > SIEF2 (thanks Christian) > > --- > Christoph Schlameuss (2): > linux-headers: Update to Linux v7.x with KVM_S390_VM_CPU_FEAT_ASTFLEIE2 > s390x/kvm: Add ASTFLE facility 2 for nested virtualization > > hw/s390x/sclp.c | 2 ++ > include/hw/s390x/sclp.h | 4 +++- > linux-headers/asm-s390/kvm.h | 1 + > target/s390x/cpu_features.c | 3 +++ > target/s390x/cpu_features.h | 1 + > target/s390x/cpu_features_def.h.inc | 3 +++ > target/s390x/cpu_models.c | 2 ++ > target/s390x/gen-features.c | 1 + > target/s390x/kvm/kvm.c | 1 + > 9 files changed, 17 insertions(+), 1 deletion(-) > --- > base-commit: fa4b2e31e649ba6fdb3eb2dd43952aad4a3bd675 > change-id: 20260209-astfleie2-85eec9fd9213 > > Best regards, > -- > Christoph Schlameuss Looking through old emails: Can we respin with a proper headers update by now, or is the kernel change still pending? (Or did I miss an update? :)