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Wed, 23 Jul 2025 03:18:37 -0400 Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jul 2025 00:18:25 -0700 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orviesa010.jf.intel.com with ESMTP; 23 Jul 2025 00:18:24 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1753255109; x=1784791109; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=RGlSGzGkbqVhDC4KFQQiXuDi9zm1hRpG1NVXQpKek9Q=; b=J5GavlPy86R9VVIDACBJ7dq2hLOVfrhABmvAKZZ54fnYcqnVzg7hXmKw NoeOSxfRfvjRJ9zlBQCt3vSCMAT3pbJDxq0xcetUoNNA3uGj+eHT7ztBI g959MtCbXWkpP6PKsa0yx3TLe8y/R9ZOhLyHaEEAGeftTF9cNBBzrhLfH rtIKL9NEMAeUOWOxFOw+n/bslu3kjak7AR2ToxmWTRf4IsOqnLkA++zux fn5z625O+UNSoecIWOy3voH83TUmCs/7V/FvyBL01d0XcZyQkY2zcWkic t4jMHPfKKdYDdikg1f0i0S5bSMv3e3eaMj66ZJ+cJvvhhXYwDbCUGW+oV g==; X-CSE-ConnectionGUID: jE/VpIETTL6EDAwy3q5mgQ== X-CSE-MsgGUID: 3ogMPxIoQj6A3ETMTZyr2w== X-IronPort-AV: E=McAfee;i="6800,10657,11500"; a="55480927" X-IronPort-AV: E=Sophos;i="6.16,333,1744095600"; d="scan'208";a="55480927" X-CSE-ConnectionGUID: 4uwKOySYRaemS04dhPyBgQ== X-CSE-MsgGUID: rWvhmVwzRNOdFVYyKrTDSA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,333,1744095600"; d="scan'208";a="158662230" From: Xiaoyao Li To: Paolo Bonzini Cc: qemu-devel@nongnu.org, Xiaoyao Li Subject: [PATCH 1/3] accel/kvm: Switch to check KVM_CAP_GUEST_MEMFD and KVM_CAP_USER_MEMORY2 on VM Date: Wed, 23 Jul 2025 15:09:49 +0800 Message-ID: <20250723070951.1134374-2-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250723070951.1134374-1-xiaoyao.li@intel.com> References: <20250723070951.1134374-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=198.175.65.17; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.633, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.999, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1753255326722116600 Content-Type: text/plain; charset="utf-8" It returns more accruate result on checking KVM_CAP_GUEST_MEMFD and KVM_CAP_USER_MEMORY2 on VM instance instead of on KVM platform. Signed-off-by: Xiaoyao Li --- accel/kvm/kvm-all.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 890d5ea9f865..14d47246ca63 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -2776,8 +2776,8 @@ static int kvm_init(AccelState *as, MachineState *ms) =20 kvm_supported_memory_attributes =3D kvm_vm_check_extension(s, KVM_CAP_= MEMORY_ATTRIBUTES); kvm_guest_memfd_supported =3D - kvm_check_extension(s, KVM_CAP_GUEST_MEMFD) && - kvm_check_extension(s, KVM_CAP_USER_MEMORY2) && + kvm_vm_check_extension(s, KVM_CAP_GUEST_MEMFD) && + kvm_vm_check_extension(s, KVM_CAP_USER_MEMORY2) && (kvm_supported_memory_attributes & KVM_MEMORY_ATTRIBUTE_PRIVATE); kvm_pre_fault_memory_supported =3D kvm_vm_check_extension(s, KVM_CAP_P= RE_FAULT_MEMORY); =20 --=20 2.43.0