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Tue, 15 Oct 2024 16:43:27 +0000 (GMT) From: Claudio Imbrenda To: linux-kernel@vger.kernel.org Cc: borntraeger@de.ibm.com, nsg@linux.ibm.com, nrb@linux.ibm.com, frankja@linux.ibm.com, seiden@linux.ibm.com, hca@linux.ibm.com, agordeev@linux.ibm.com, gor@linux.ibm.com, gerald.schaefer@linux.ibm.com, kvm@vger.kernel.org, linux-s390@vger.kernel.org Subject: [PATCH v3 06/11] s390/kvm: Stop using gmap_{en,dis}able() Date: Tue, 15 Oct 2024 18:43:21 +0200 Message-ID: <20241015164326.124987-7-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241015164326.124987-1-imbrenda@linux.ibm.com> References: <20241015164326.124987-1-imbrenda@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 4uhVyAa4UzdxKKO3uM6y5Drv81cT-m-L X-Proofpoint-ORIG-GUID: 4uhVyAa4UzdxKKO3uM6y5Drv81cT-m-L X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 mlxlogscore=489 adultscore=0 clxscore=1015 mlxscore=0 phishscore=0 bulkscore=0 spamscore=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410150113 Content-Type: text/plain; charset="utf-8" Stop using gmap_enable(), gmap_disable(), gmap_get_enabled(). The correct guest ASCE is passed as a parameter of sie64a(), there is no need to save the current gmap in lowcore. Signed-off-by: Claudio Imbrenda Acked-by: Steffen Eiden Reviewed-by: Heiko Carstens --- arch/s390/kvm/kvm-s390.c | 7 +------ arch/s390/kvm/vsie.c | 4 +--- 2 files changed, 2 insertions(+), 9 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index cfe3f8182aa5..df778a4a011d 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -3719,7 +3719,6 @@ __u64 kvm_s390_get_cpu_timer(struct kvm_vcpu *vcpu) void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { =20 - gmap_enable(vcpu->arch.enabled_gmap); kvm_s390_set_cpuflags(vcpu, CPUSTAT_RUNNING); if (vcpu->arch.cputm_enabled && !is_vcpu_idle(vcpu)) __start_cpu_timer_accounting(vcpu); @@ -3732,8 +3731,6 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) if (vcpu->arch.cputm_enabled && !is_vcpu_idle(vcpu)) __stop_cpu_timer_accounting(vcpu); kvm_s390_clear_cpuflags(vcpu, CPUSTAT_RUNNING); - vcpu->arch.enabled_gmap =3D gmap_get_enabled(); - gmap_disable(vcpu->arch.enabled_gmap); =20 } =20 @@ -3751,8 +3748,6 @@ void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu) } if (test_kvm_facility(vcpu->kvm, 74) || vcpu->kvm->arch.user_instr0) vcpu->arch.sie_block->ictl |=3D ICTL_OPEREXC; - /* make vcpu_load load the right gmap on the first trigger */ - vcpu->arch.enabled_gmap =3D vcpu->arch.gmap; } =20 static bool kvm_has_pckmo_subfunc(struct kvm *kvm, unsigned long nr) @@ -4891,7 +4886,7 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) } exit_reason =3D sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs, - gmap_get_enabled()->asce); + vcpu->arch.gmap->asce); if (kvm_s390_pv_cpu_is_protected(vcpu)) { memcpy(vcpu->run->s.regs.gprs, sie_page->pv_grregs, diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index 35e7dd882148..d03f95e528fe 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -1151,7 +1151,7 @@ static int do_vsie_run(struct kvm_vcpu *vcpu, struct = vsie_page *vsie_page) current->thread.gmap_int_code =3D 0; barrier(); if (!kvm_s390_vcpu_sie_inhibited(vcpu)) - rc =3D sie64a(scb_s, vcpu->run->s.regs.gprs, gmap_get_enabled()->asce); + rc =3D sie64a(scb_s, vcpu->run->s.regs.gprs, vsie_page->gmap->asce); barrier(); vcpu->arch.sie_block->prog0c &=3D ~PROG_IN_SIE; =20 @@ -1296,10 +1296,8 @@ static int vsie_run(struct kvm_vcpu *vcpu, struct vs= ie_page *vsie_page) if (!rc) rc =3D map_prefix(vcpu, vsie_page); if (!rc) { - gmap_enable(vsie_page->gmap); update_intervention_requests(vsie_page); rc =3D do_vsie_run(vcpu, vsie_page); - gmap_enable(vcpu->arch.gmap); } atomic_andnot(PROG_BLOCK_SIE, &scb_s->prog20); =20 --=20 2.47.0