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[2003:d8:2f25:bd00:949:b5a9:e02a:f265]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a568a54d2asm11139179f8f.9.2025.06.16.07.20.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 16 Jun 2025 07:20:03 -0700 (PDT) Message-ID: Date: Mon, 16 Jun 2025 16:20:01 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v12 04/18] KVM: x86: Rename kvm->arch.has_private_mem to kvm->arch.supports_gmem To: Fuad Tabba , Sean Christopherson Cc: kvm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mm@kvack.org, kvmarm@lists.linux.dev, pbonzini@redhat.com, chenhuacai@kernel.org, mpe@ellerman.id.au, anup@brainfault.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org, xiaoyao.li@intel.com, yilun.xu@intel.com, chao.p.peng@linux.intel.com, jarkko@kernel.org, amoorthy@google.com, dmatlack@google.com, isaku.yamahata@intel.com, mic@digikod.net, vbabka@suse.cz, vannapurve@google.com, ackerleytng@google.com, mail@maciej.szmigiero.name, michael.roth@amd.com, wei.w.wang@intel.com, liam.merwick@oracle.com, isaku.yamahata@gmail.com, kirill.shutemov@linux.intel.com, suzuki.poulose@arm.com, steven.price@arm.com, quic_eberman@quicinc.com, quic_mnalajal@quicinc.com, quic_tsoni@quicinc.com, quic_svaddagi@quicinc.com, quic_cvanscha@quicinc.com, quic_pderrin@quicinc.com, quic_pheragu@quicinc.com, catalin.marinas@arm.com, james.morse@arm.com, yuzenghui@huawei.com, oliver.upton@linux.dev, maz@kernel.org, will@kernel.org, qperret@google.com, keirf@google.com, roypat@amazon.co.uk, shuah@kernel.org, hch@infradead.org, jgg@nvidia.com, rientjes@google.com, jhubbard@nvidia.com, fvdl@google.com, hughd@google.com, jthoughton@google.com, peterx@redhat.com, pankaj.gupta@amd.com, ira.weiny@intel.com References: <20250611133330.1514028-1-tabba@google.com> <20250611133330.1514028-5-tabba@google.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: E3160180003 X-Stat-Signature: t4pbkmfotejdgfab3uaaftr4h68mzag3 X-Rspam-User: X-HE-Tag: 1750083612-375516 X-HE-Meta: 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 dHY7KkuL 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: >>> Rename it to supports_gmem to make its meaning clearer and to decouple memory >>> being private from guest_memfd. >>> >>> Reviewed-by: Ira Weiny >>> Reviewed-by: Gavin Shan >>> Reviewed-by: Shivank Garg >>> Reviewed-by: Vlastimil Babka >>> Co-developed-by: David Hildenbrand >>> Signed-off-by: David Hildenbrand >>> Signed-off-by: Fuad Tabba >>> --- >>> arch/x86/include/asm/kvm_host.h | 4 ++-- >>> arch/x86/kvm/mmu/mmu.c | 2 +- >>> arch/x86/kvm/svm/svm.c | 4 ++-- >>> arch/x86/kvm/x86.c | 3 +-- >>> 4 files changed, 6 insertions(+), 7 deletions(-) >> >> This missed the usage in TDX (it's not a staleness problem, because this series >> was based on 6.16-rc1, which has the relevant code). >> >> arch/x86/kvm/vmx/tdx.c: In function ‘tdx_vm_init’: >> arch/x86/kvm/vmx/tdx.c:627:18: error: ‘struct kvm_arch’ has no member named ‘has_private_mem’ >> 627 | kvm->arch.has_private_mem = true; >> | ^ >> make[5]: *** [scripts/Makefile.build:287: arch/x86/kvm/vmx/tdx.o] Error 1 > > I did test and run this before submitting the series. Building it on > x86 with x86_64_defconfig and with allmodconfig pass (I obviously > missed TDX though, apologies for that). I should have grepped for > has_private_mem. That said, if I understood your suggestion correctly, > this problem wouldn't happen again. It's interesting that the build bots didn't catch that earlier. -- Cheers, David / dhildenb