From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f73.google.com (mail-wm1-f73.google.com [209.85.128.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 538A12BE7BC for ; Tue, 13 May 2025 16:34:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747154086; cv=none; b=ZM4ItRk336qjVy+ACY6wqVR4moMMYDgq5J8cWNpT0NyjZM0/pDDMXVT59+Q7OlkIXRkxN0oLjO7woWthUvrrhHdzhr/6+Vp/0PluofNa5fKWUTJW/EHXC9H916NjnYgQWwDUZyDECfmAqcKU7zRM4qaBaKRVgkvRf3Z8WXwXXbE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747154086; c=relaxed/simple; bh=xNTPs9WDx+vSq85jM/yL9t/mGlkS8xH4JCkKyi568ZY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=JhydNrZiFtY+TJEXBR9NOFC0lhSYLlt3YSo8jkkB0vV4J7SI8FXyCdpZ5EPzfr52KBD2i+aFIRg7FuItuTXsXBYXuMLiJ8K/yIpmfurwov60EoGjRTzR34oXMu04dDLePjMkFRJk31xVurh97Okxd7jQJAOy52vr/9Z9H9VAuc4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--tabba.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Ipog0ATa; arc=none smtp.client-ip=209.85.128.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--tabba.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Ipog0ATa" Received: by mail-wm1-f73.google.com with SMTP id 5b1f17b1804b1-442d472cf84so27245475e9.2 for ; Tue, 13 May 2025 09:34:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1747154083; x=1747758883; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=eXtimLmxHXEkWnO1E5myC/GTQ1EqUuj9fx3a7MjMQd0=; b=Ipog0ATau1mcDG9D05Adu/+fY/DAZSJTGEkjujVcSGDbprgJ5gzyhXW/xnd6eQ8JNR lLlm1ns5R+3/UtjQ/J2MiPBOasVNtmmwscyf+8yryHYeZzl4Q/BcCxbiy5oSAUJNy6Vr 3sgtDtjGfnwu/Ja0QQGRnlFSBx7DppV96N0XY3+CVnRW5jBO+Svfbuqh/mhAI1vo/wgC F5kvEpn0Lhs+7pOAPLooZvtvFnbJGyv/1e2fLWXo5Kzj8gX+KAlsyOzC01QYJWSm7N9z VsBwpQl+Jetrs44p1zRqV2kJ4x/Njj38m+YUwWq6FvoT4LKItHIGgThH6JPlRETPGg1l 8VQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1747154083; x=1747758883; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=eXtimLmxHXEkWnO1E5myC/GTQ1EqUuj9fx3a7MjMQd0=; b=fJovd6W213+z4LCg+5L+rUhbNopGfuGAIDl0G4r4iW371zus+xuaFHEL+nztuWcXIz 5S4X2TSzD+JB/gv6blOHFE9mCi6SpQc863ZaJYDthKtpUkjVRDr2CYX4vh/83OOg/ReC SWOLPEl94H3C4ZJbJZ5Hohjxl5tUKm+P9vSCypr/18bdhY5Tpv+pw5+xE2Sbea9oQtT1 GN2AKMk0Z+MJlpAjYFF5pONdQJRJxnpDTnBjupPt8A7TjJ4A6hSrLkn3Cufx6FZIqfiG +WTAdpxgj0lJIUwuiX+UDWZwRuVbqlUR/ZeRWSE95qvquSSEYoCSC1JbU3LCofpCUDh1 3dnw== X-Gm-Message-State: AOJu0Yw4X71SVOtBVwHZFU2pBoy0BPUxwjfGyoPRdIzzkRfDBNfqfHMl QyeLtblEZPfG1EG/IeYjoCfa0NuzjQHHCR9WVTeSBsb+Sam5tZAZKRrZFvpAMcLhj6whYQTLoPM L8Ys2d/LJrbiq1HqbJFAz6pDwcBenPhnTUMntx9gwe8Pg43W6I2h/Fz14ytr9oquYd+xzuV7PRL 4q5sPevj2vMbWLKMQSLC/3J/A= X-Google-Smtp-Source: AGHT+IFIr8fXpA5EElYw0iZ//FnNLg+lhwetRGpkRgB/x6sT+Ovs2tHvK9NIyMLs2laKYevir4FnIB19FQ== X-Received: from wmbet9.prod.google.com ([2002:a05:600c:8189:b0:442:dfbc:dda]) (user=tabba job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:a00a:b0:43d:db5:7af8 with SMTP id 5b1f17b1804b1-442d6dc7cd1mr144026555e9.21.1747154082603; Tue, 13 May 2025 09:34:42 -0700 (PDT) Date: Tue, 13 May 2025 17:34:22 +0100 In-Reply-To: <20250513163438.3942405-1-tabba@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250513163438.3942405-1-tabba@google.com> X-Mailer: git-send-email 2.49.0.1045.g170613ef41-goog Message-ID: <20250513163438.3942405-2-tabba@google.com> Subject: [PATCH v9 01/17] KVM: Rename CONFIG_KVM_PRIVATE_MEM to CONFIG_KVM_GMEM From: Fuad Tabba To: kvm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mm@kvack.org Cc: pbonzini@redhat.com, chenhuacai@kernel.org, mpe@ellerman.id.au, anup@brainfault.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, seanjc@google.com, 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, david@redhat.com, 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, tabba@google.com Content-Type: text/plain; charset="UTF-8" The option KVM_PRIVATE_MEM enables guest_memfd in general. Subsequent patches add shared memory support to guest_memfd. Therefore, rename it to KVM_GMEM to make its purpose clearer. Reviewed-by: Ira Weiny Co-developed-by: David Hildenbrand Signed-off-by: David Hildenbrand Signed-off-by: Fuad Tabba --- arch/x86/include/asm/kvm_host.h | 2 +- include/linux/kvm_host.h | 10 +++++----- virt/kvm/Kconfig | 8 ++++---- virt/kvm/Makefile.kvm | 2 +- virt/kvm/kvm_main.c | 4 ++-- virt/kvm/kvm_mm.h | 4 ++-- 6 files changed, 15 insertions(+), 15 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 7bc174a1f1cb..52f6f6d08558 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -2253,7 +2253,7 @@ void kvm_configure_mmu(bool enable_tdp, int tdp_forced_root_level, int tdp_max_root_level, int tdp_huge_page_level); -#ifdef CONFIG_KVM_PRIVATE_MEM +#ifdef CONFIG_KVM_GMEM #define kvm_arch_has_private_mem(kvm) ((kvm)->arch.has_private_mem) #else #define kvm_arch_has_private_mem(kvm) false diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 291d49b9bf05..d6900995725d 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -601,7 +601,7 @@ struct kvm_memory_slot { short id; u16 as_id; -#ifdef CONFIG_KVM_PRIVATE_MEM +#ifdef CONFIG_KVM_GMEM struct { /* * Writes protected by kvm->slots_lock. Acquiring a @@ -722,7 +722,7 @@ static inline int kvm_arch_vcpu_memslots_id(struct kvm_vcpu *vcpu) * Arch code must define kvm_arch_has_private_mem if support for private memory * is enabled. */ -#if !defined(kvm_arch_has_private_mem) && !IS_ENABLED(CONFIG_KVM_PRIVATE_MEM) +#if !defined(kvm_arch_has_private_mem) && !IS_ENABLED(CONFIG_KVM_GMEM) static inline bool kvm_arch_has_private_mem(struct kvm *kvm) { return false; @@ -2504,7 +2504,7 @@ bool kvm_arch_post_set_memory_attributes(struct kvm *kvm, static inline bool kvm_mem_is_private(struct kvm *kvm, gfn_t gfn) { - return IS_ENABLED(CONFIG_KVM_PRIVATE_MEM) && + return IS_ENABLED(CONFIG_KVM_GMEM) && kvm_get_memory_attributes(kvm, gfn) & KVM_MEMORY_ATTRIBUTE_PRIVATE; } #else @@ -2514,7 +2514,7 @@ static inline bool kvm_mem_is_private(struct kvm *kvm, gfn_t gfn) } #endif /* CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES */ -#ifdef CONFIG_KVM_PRIVATE_MEM +#ifdef CONFIG_KVM_GMEM int kvm_gmem_get_pfn(struct kvm *kvm, struct kvm_memory_slot *slot, gfn_t gfn, kvm_pfn_t *pfn, struct page **page, int *max_order); @@ -2527,7 +2527,7 @@ static inline int kvm_gmem_get_pfn(struct kvm *kvm, KVM_BUG_ON(1, kvm); return -EIO; } -#endif /* CONFIG_KVM_PRIVATE_MEM */ +#endif /* CONFIG_KVM_GMEM */ #ifdef CONFIG_HAVE_KVM_ARCH_GMEM_PREPARE int kvm_arch_gmem_prepare(struct kvm *kvm, gfn_t gfn, kvm_pfn_t pfn, int max_order); diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index 727b542074e7..49df4e32bff7 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -112,19 +112,19 @@ config KVM_GENERIC_MEMORY_ATTRIBUTES depends on KVM_GENERIC_MMU_NOTIFIER bool -config KVM_PRIVATE_MEM +config KVM_GMEM select XARRAY_MULTI bool config KVM_GENERIC_PRIVATE_MEM select KVM_GENERIC_MEMORY_ATTRIBUTES - select KVM_PRIVATE_MEM + select KVM_GMEM bool config HAVE_KVM_ARCH_GMEM_PREPARE bool - depends on KVM_PRIVATE_MEM + depends on KVM_GMEM config HAVE_KVM_ARCH_GMEM_INVALIDATE bool - depends on KVM_PRIVATE_MEM + depends on KVM_GMEM diff --git a/virt/kvm/Makefile.kvm b/virt/kvm/Makefile.kvm index 724c89af78af..8d00918d4c8b 100644 --- a/virt/kvm/Makefile.kvm +++ b/virt/kvm/Makefile.kvm @@ -12,4 +12,4 @@ kvm-$(CONFIG_KVM_ASYNC_PF) += $(KVM)/async_pf.o kvm-$(CONFIG_HAVE_KVM_IRQ_ROUTING) += $(KVM)/irqchip.o kvm-$(CONFIG_HAVE_KVM_DIRTY_RING) += $(KVM)/dirty_ring.o kvm-$(CONFIG_HAVE_KVM_PFNCACHE) += $(KVM)/pfncache.o -kvm-$(CONFIG_KVM_PRIVATE_MEM) += $(KVM)/guest_memfd.o +kvm-$(CONFIG_KVM_GMEM) += $(KVM)/guest_memfd.o diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index e85b33a92624..4996cac41a8f 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -4842,7 +4842,7 @@ static int kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg) case KVM_CAP_MEMORY_ATTRIBUTES: return kvm_supported_mem_attributes(kvm); #endif -#ifdef CONFIG_KVM_PRIVATE_MEM +#ifdef CONFIG_KVM_GMEM case KVM_CAP_GUEST_MEMFD: return !kvm || kvm_arch_has_private_mem(kvm); #endif @@ -5276,7 +5276,7 @@ static long kvm_vm_ioctl(struct file *filp, case KVM_GET_STATS_FD: r = kvm_vm_ioctl_get_stats_fd(kvm); break; -#ifdef CONFIG_KVM_PRIVATE_MEM +#ifdef CONFIG_KVM_GMEM case KVM_CREATE_GUEST_MEMFD: { struct kvm_create_guest_memfd guest_memfd; diff --git a/virt/kvm/kvm_mm.h b/virt/kvm/kvm_mm.h index acef3f5c582a..ec311c0d6718 100644 --- a/virt/kvm/kvm_mm.h +++ b/virt/kvm/kvm_mm.h @@ -67,7 +67,7 @@ static inline void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm, } #endif /* HAVE_KVM_PFNCACHE */ -#ifdef CONFIG_KVM_PRIVATE_MEM +#ifdef CONFIG_KVM_GMEM void kvm_gmem_init(struct module *module); int kvm_gmem_create(struct kvm *kvm, struct kvm_create_guest_memfd *args); int kvm_gmem_bind(struct kvm *kvm, struct kvm_memory_slot *slot, @@ -91,6 +91,6 @@ static inline void kvm_gmem_unbind(struct kvm_memory_slot *slot) { WARN_ON_ONCE(1); } -#endif /* CONFIG_KVM_PRIVATE_MEM */ +#endif /* CONFIG_KVM_GMEM */ #endif /* __KVM_MM_H__ */ -- 2.49.0.1045.g170613ef41-goog