From nobody Sun Feb 8 23:35:16 2026 Received: from mail-oo1-f74.google.com (mail-oo1-f74.google.com [209.85.161.74]) (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 EC1051C3C01 for ; Wed, 4 Dec 2024 19:14:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733339659; cv=none; b=NHPtpARQOOQtbOWIgIPMEVgxnOS/UB7KSkYsQv5vOfmbapOGLb+7/SzOPVMvYLId+RbL0RfU6aCeHIu/b5HdrVinJZ/4OaPeoak6FmPqnsiokgA9et9otv++ifJvxgC5Uu+CrhXeUVTBWOriRsY7dK+Gjm4SMMGl+jYHrcEtTlQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733339659; c=relaxed/simple; bh=Pe5YIDGyVsJn3IDNSsuwg/PtWitlNtJM3kxtfZFGD8o=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=NoYZPdSmmWEPE2cCOhs961hVeHS3mlNVDcwnkKN8F+MYfaeEKZE9Ca9+Ae4j7CUvZu7xmIQKn3Ap9VYFTGRk38I4Y2fN5r352N1TQQNJUwyzP039f3+RmtDwfqJeT7NA+H9M5YLnsoiWoGzrnV/248O/NkfFzzFz1KIDTEykHko= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jthoughton.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=LZbQ8zsy; arc=none smtp.client-ip=209.85.161.74 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--jthoughton.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="LZbQ8zsy" Received: by mail-oo1-f74.google.com with SMTP id 006d021491bc7-5f2033c97cfso118212eaf.3 for ; Wed, 04 Dec 2024 11:14:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1733339657; x=1733944457; 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=ifppD8XOVrlj0Y18bnChdCi7ngFpMAIfTyMrOgFm5Gc=; b=LZbQ8zsySnHzNTQwM+VYSwJ6n8soxGXUC9vCnCQUk5lKbQNVoE3sTTxnOM2THOP1VL O0WHxpLOsLUFz8VujjNK9tNV13Z/b+2mW9BOkt19LNy/bJaylC9on3CsLy568FKjERQL XnwZocCV9Ry4o2oc2obKLOVMp0nlxZT7gPB0oKHMZGhafgBMmVt7Zlp8sQGNGPNd7gmv ACjVkigeuxs1deI3ZX2UN7C6xIN+tv9saq8ykSBZCzsb3qh7lm3hwr1yppmUU+dEVKbm aLbxh1kDQ72CNQPEQRyEJQtZfbPvqZAr51sidUOZ9MZ8mErDeiz8/kceHYkwvMF6u2BN kgHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733339657; x=1733944457; 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=ifppD8XOVrlj0Y18bnChdCi7ngFpMAIfTyMrOgFm5Gc=; b=VsBObgfWdtfOSUmhMajvLcUtnJYP7IhZPMHXG8YESlPZqheQ1bePI+auT1/ZhIdqnJ TvvtZuLF77eDPa4kpi7CzicrfybT5srypSgedrBWFtr20z9IM2AC11RcIBL8fthBA5Tw RcKPKBcRSLf+24BWHuLfcmhEkcY/kh7zDBmHN37KN9BasvNsmd1mo+HzWSl0SjA3yeQ1 I4pnj7JoWh5ZGMuW11vPrsQf33wc57g7OQ5Wy+/If/marD6J3trLj7pmzm5tlUbbtj/B 4MAIv+JVnqPsnc5mIgrL5Vl4rkmF4VeZc+DvV8NJs/tb6rg0MAWPyvtH3qE/auUw1Z2w +UwQ== X-Forwarded-Encrypted: i=1; AJvYcCV66ojL0zXyaEuXBDypNLiBKzxHJVHcx8XQ4dlWQfytfBBkfsHVhE5ABtEOjRzrblF71yBzNCP18nUp27A=@vger.kernel.org X-Gm-Message-State: AOJu0Ywobdc+m7RV9rTVtR6Xl/TtSFPTWxMHT3Kj+Tv7uTiiLiYoKwQh DoKZiacJFwOBZcQ6Q5blb0w8WlxJ4BRLSI1zVgMMisY9ZPVREEEgGxQa7wSex3MroUtfSPcsHeo +BJClSXZsAFetMl0krg== X-Google-Smtp-Source: AGHT+IGqVM1yUneXF0DiEvK0H0RPVa3NLvh9Vv5/V4X8bp9PJGOl+SW8n3O2HwvzvAHA/QzfxuBonL+2sIMiSocO X-Received: from uaf26.prod.google.com ([2002:a05:6130:6d1a:b0:850:15b2:33d7]) (user=jthoughton job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6359:230b:b0:1c3:94:8ffa with SMTP id e5c5f4694b2df-1caeabc2133mr709229655d.22.1733339656984; Wed, 04 Dec 2024 11:14:16 -0800 (PST) Date: Wed, 4 Dec 2024 19:13:37 +0000 In-Reply-To: <20241204191349.1730936-1-jthoughton@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241204191349.1730936-1-jthoughton@google.com> X-Mailer: git-send-email 2.47.0.338.g60cca15819-goog Message-ID: <20241204191349.1730936-3-jthoughton@google.com> Subject: [PATCH v1 02/13] KVM: Add KVM_MEMORY_EXIT_FLAG_USERFAULT From: James Houghton To: Paolo Bonzini , Sean Christopherson Cc: Jonathan Corbet , Marc Zyngier , Oliver Upton , Yan Zhao , James Houghton , Nikita Kalyazin , Anish Moorthy , Peter Gonda , Peter Xu , David Matlack , Wang@google.com, Wei W , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This flag is used for vCPU memory faults caused by KVM Userfault; i.e., the bit in `userfault_bitmap` corresponding to the faulting gfn was set. Signed-off-by: James Houghton --- include/uapi/linux/kvm.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 94be7e8b46a4..641a2e580441 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -444,6 +444,7 @@ struct kvm_run { /* KVM_EXIT_MEMORY_FAULT */ struct { #define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3) +#define KVM_MEMORY_EXIT_FLAG_USERFAULT (1ULL << 4) __u64 flags; __u64 gpa; __u64 size; --=20 2.47.0.338.g60cca15819-goog