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Fri, 28 Aug 2026 17:58:50 +0000 (GMT) Received: from p-imbrenda (unknown [9.224.75.30]) by smtpav05.fra02v.mail.ibm.com (Postfix) with SMTP; Fri, 28 Aug 2026 17:58:50 +0000 (GMT) Date: Fri, 28 Aug 2026 19:58:48 +0200 From: Claudio Imbrenda To: Sean Christopherson Cc: Marc Zyngier , Oliver Upton , Paolo Bonzini , Tianrui Zhao , Bibo Mao , Huacai Chen , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Fuad Tabba , Joey Gouly , Steffen Eiden , Suzuki K Poulose , Zenghui Yu , Atish Patra , Alexandre Ghiti , David Hildenbrand , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, loongarch@lists.linux.dev, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Nicholas Piggin , Ritesh Harjani Subject: Re: [PATCH 02/20] KVM: selftests: Bump the minimum GPA for page tables to 0x200000 Message-ID: <20260828195848.2d14e9aa@p-imbrenda> In-Reply-To: <20260826230511.972824-3-seanjc@google.com> References: <20260826230511.972824-1-seanjc@google.com> <20260826230511.972824-3-seanjc@google.com> Organization: IBM X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: 6HLzcE55zTkKQP62ckFMr43JzrkoC_oe X-Proofpoint-ORIG-GUID: _S2ZlVd_KKoZRw557abXl1I420nQqrgM X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI4MDE1MyBTYWx0ZWRfX0qLLxglo25xX c0LNE8XwpN3clTQ27kM5obCN/mEKCM9T/V2UrYDQGoDeLX/sVrfZOyt/r6/j4m6ZL9tZwwdloCX 4ypWX+xcPPxfyFFj9CzHJ+H1Jy+Nesr9gJfeq0vFd2dplKnzTWJssOegw+X8u4WcEZkJzQEUZze fMhRqtdMmDyXsI5MbPZ0klTINPE7IkclPa0O3GRO+hXLWMcECgv1UVnO0USv3G3nQs2z/fAyFHt gNF+rh3+M4hf2TlE3OLLpCOZzZ0quhk9kQX7DNKwRaTTPu9yI5FGeBiu38rACVpkLaS76RTvvwk ELUm+pM5KW56fI0RwGoW8Y541MsPZt4YlDLI0plXmqCecpK+KMoc14R0xuC6t5Q+da6p9BTxg9I Z2MJP0donTGv3lcaG4UoyVdwmTdFs+WvA2dxyIbg21fJJAVArBBYfJ7ZgKbehjiHOWklyrh9NP/ jx1EDxOnKwX5OS/aUiA== X-Authority-Analysis: v=2.4 cv=QsRuG1yd c=1 sm=1 tr=0 ts=6a91cc60 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=kj9zAlcOel0A:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=1XWaLZrsAAAA:8 a=Rex0ZKQa4XsKW5WIoWMA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Spam-Info: AW1haW4tMjYwODI4MDE1MyBTYWx0ZWRfX/pS+uSLiiIVc dz0zFaQHlHiFiK9bsIl+xi1GR3ZuN8ixPgN9QIrOdnh1lnLipbWGJZ07LBCw2zrVE6icQuqM30v TB/vJ8xy+UMB1HVhNbAWSTx71V1+vCs= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-28_05,2026-08-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 spamscore=0 lowpriorityscore=0 clxscore=1011 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608280153 On Wed, 26 Aug 2026 16:04:53 -0700 Sean Christopherson wrote: > Bump selftests completely arbitrary minimum GPA for page tables from > 0x180000 to 0x200000 (LoongArch's minimum), so that LoongArch can use > vm_alloc_page_table() instead of open coding a rough equivalent. > > Signed-off-by: Sean Christopherson > --- > tools/testing/selftests/kvm/include/kvm_util.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h > index 5a7a455b5387..70906a0d1003 100644 > --- a/tools/testing/selftests/kvm/include/kvm_util.h > +++ b/tools/testing/selftests/kvm/include/kvm_util.h > @@ -175,7 +175,7 @@ static inline struct userspace_mem_region *vm_get_mem_region(struct kvm_vm *vm, > > /* Minimum allocated guest virtual and physical addresses */ > #define KVM_UTIL_MIN_VADDR 0x2000 > -#define KVM_GUEST_PAGE_TABLE_MIN_PADDR 0x180000 > +#define KVM_GUEST_PAGE_TABLE_MIN_PADDR 0x200000 > > #define DEFAULT_GUEST_STACK_VADDR_MIN 0xab6000 > #define DEFAULT_STACK_PGS 5 this breaks s390/cmma_test I tried a quick fix, but nope... I will need to actually invest some time (i.e. next week) to understand why the quick fix is not enough, and come up with a proper fix the good news is: it seems like cmma_test is the only test that is negatively affected by this series.