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[34.168.104.7]) by smtp.gmail.com with ESMTPSA id b7-20020a170903228700b00178b06fea7asm3409669plh.148.2022.10.26.15.51.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Oct 2022 15:51:07 -0700 (PDT) Date: Wed, 26 Oct 2022 22:51:04 +0000 From: Sean Christopherson To: Peter Xu Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, David Matlack , "Dr . David Alan Gilbert" , David Hildenbrand , John Hubbard , Andrew Morton , Linux MM Mailing List , Mike Kravetz , Paolo Bonzini , Andrea Arcangeli Subject: Re: [PATCH v4 4/4] kvm: x86: Allow to respond to generic signals during slow PF Message-ID: References: <20221011195809.557016-1-peterx@redhat.com> <20221011195947.557281-1-peterx@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221011195947.557281-1-peterx@redhat.com> ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666824669; a=rsa-sha256; cv=none; b=I4Wm/VTa2x707vrvKMySZUv2THwZfY6e56ohZhdiHRbvqKz5NOG8gl3UwboG1cldcEhZOG zesCndcnQbnzh4DIxboLKE1nI1lxN+QaBkgjWW9C/AetHvHebejcpjYMipz62DxIf8/J3u 3lr9zvtSXUyy8UQJ7xKQzyp2DWaPmCE= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=nTy1bgcy; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf04.hostedemail.com: domain of seanjc@google.com designates 209.85.210.181 as permitted sender) smtp.mailfrom=seanjc@google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666824669; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=nx9X2AqXx9kL9mqmehn81a2HA6pr+SJoh7OoN2qbwyg=; b=qDKlzNX75q/LwW5TIf0n9i18uuciENWeZcmP11L1BXVpMVMoLkDRaPpysedBF0CQ0OOks0 NdwFLUzjQhQcIkKUajjluSzeI8Y2jrsmPLq9xK2KbAtofNLC7+C5CZCcHkSO98YyEWj9sp NOXa52Gm9wj6Le4bKmBro+sg/E/TcU8= X-Rspamd-Queue-Id: 471B94000E Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=nTy1bgcy; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf04.hostedemail.com: domain of seanjc@google.com designates 209.85.210.181 as permitted sender) smtp.mailfrom=seanjc@google.com X-Rspamd-Server: rspam12 X-Rspam-User: X-Stat-Signature: jhxnfmakycuyzagu1kueq6op6dwbizx7 X-HE-Tag: 1666824669-92177 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: "KVM: x86/mmu:" for the shortlog. On Tue, Oct 11, 2022, Peter Xu wrote: > Enable x86 slow page faults to be able to respond to non-fatal signals, > returning -EINTR properly when it happens. Probably worth adding: Opportunistically rename kvm_handle_bad_page() to kvm_handle_error_pfn() as an error pfn doesn't necessarily mean the page is "bad". > Signed-off-by: Peter Xu > --- Reviewed-by: Sean Christopherson