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Wed, 30 Nov 2022 15:10:14 -0800 (PST) Date: Wed, 30 Nov 2022 23:09:06 +0000 In-Reply-To: <20221130230934.1014142-1-seanjc@google.com> Mime-Version: 1.0 References: <20221130230934.1014142-1-seanjc@google.com> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog Message-ID: <20221130230934.1014142-23-seanjc@google.com> Subject: [PATCH v2 22/50] KVM: MIPS: Setup VZ emulation? directly from kvm_mips_init() From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Huacai Chen , Aleksandar Markovic , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Matthew Rosato , Eric Farman , Sean Christopherson , Vitaly Kuznetsov , David Woodhouse , Paul Durrant Cc: kvm@vger.kernel.org, David Hildenbrand , Atish Patra , linux-kernel@vger.kernel.org, Kai Huang , linux-riscv@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-s390@vger.kernel.org, Michael Ellerman , Chao Gao , Yuan Yao , kvmarm@lists.linux.dev, Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Isaku Yamahata , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Fabiano Rosas , Cornelia Huck , linux-mips@vger.kernel.org, kvm-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list Reply-To: Sean Christopherson List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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Wed, 30 Nov 2022 15:10:14 -0800 (PST) Reply-To: Sean Christopherson Date: Wed, 30 Nov 2022 23:09:06 +0000 In-Reply-To: <20221130230934.1014142-1-seanjc@google.com> Mime-Version: 1.0 References: <20221130230934.1014142-1-seanjc@google.com> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog Message-ID: <20221130230934.1014142-23-seanjc@google.com> Subject: [PATCH v2 22/50] KVM: MIPS: Setup VZ emulation? directly from kvm_mips_init() From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Huacai Chen , Aleksandar Markovic , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Matthew Rosato , Eric Farman , Sean Christopherson , Vitaly Kuznetsov , David Woodhouse , Paul Durrant Cc: James Morse , Alexandru Elisei , Suzuki K Poulose , Oliver Upton , Atish Patra , David Hildenbrand , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Yuan Yao , Cornelia Huck , Isaku Yamahata , "=?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?=" , Fabiano Rosas , Michael Ellerman , Kai Huang , Chao Gao , Thomas Gleixner Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Invoke kvm_mips_emulation_init() directly from kvm_mips_init() instead of bouncing through kvm_init()=3D>kvm_arch_init(). Functionally, this is a glorified nop as invoking kvm_arch_init() is the very first action performed by kvm_init(). Emptying kvm_arch_init() will allow dropping the hook entirely once all architecture implementations are nops. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- arch/mips/kvm/mips.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index f0a6c245d1ff..75681281e2df 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1012,7 +1012,7 @@ long kvm_arch_vm_ioctl(struct file *filp, unsigned in= t ioctl, unsigned long arg) =20 int kvm_arch_init(void *opaque) { - return kvm_mips_emulation_init(); + return 0; } =20 void kvm_arch_exit(void) @@ -1636,6 +1636,10 @@ static int __init kvm_mips_init(void) if (ret) return ret; =20 + ret =3D kvm_mips_emulation_init(); + if (ret) + return ret; + ret =3D kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); =20 if (ret) --=20 2.38.1.584.g0f3c55d4c2-goog From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 14F6AC4321E for ; Wed, 30 Nov 2022 23:30:31 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4NMwRn3Lzxz3fX2 for ; Thu, 1 Dec 2022 10:30:29 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20210112 header.b=rXveYksP; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=flex--seanjc.bounces.google.com (client-ip=2607:f8b0:4864:20::1049; helo=mail-pj1-x1049.google.com; envelope-from=31ukhywykdn0rd9mibfnnfkd.bnlkhmtwoob-cdukhrsr.nyk9ar.nqf@flex--seanjc.bounces.google.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20210112 header.b=rXveYksP; dkim-atps=neutral Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4NMw0R3FVZz3bg8 for ; Thu, 1 Dec 2022 10:10:15 +1100 (AEDT) Received: by mail-pj1-x1049.google.com with SMTP id on5-20020a17090b1d0500b0021821a07953so3791883pjb.4 for ; Wed, 30 Nov 2022 15:10:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:reply-to:from:to:cc:subject:date :message-id:reply-to; bh=uj+BMG24gpugAApyuMjfHhGTokqhj/HfOHcPzx/7Ixc=; b=rXveYksPcbHAdLQWx0Se3mgCcQvIusgWV2YBwsk350kO+gwstaEEoshUZTFpuvac++ pLds7vX8HQyFV+EXcCsNs4Huph1CvEcQOXAAAxG85uCm3rCCbxscdft2ZxjRveL1foHX Lrax89MRhf3bE1bAwMOLphkpziYLo/XzKTjZtkj0KrWsaZWT2gVodfm1c5joltsrB5eF W0icMxnX0hgljPZjSz6UkymZcq3fcWnGh4feMzJb8fuOAJykHj0A+tcjteTkrK4SYiHc +b7l66OJ0teH4JUbB2xCLD5wxFKLZ8CELPJsM7W7cN4l69kYm6xFX8ZvCrFTJGzWVhEq HM9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:reply-to:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=uj+BMG24gpugAApyuMjfHhGTokqhj/HfOHcPzx/7Ixc=; b=mi1m+tHCoI8ZawL/o5VqPtMm3bwpliM8J2S0aeYVjJfjeVB/2tfQTgYm0Y9PgojMhs jkiP4yY35ArM1pnvAQRKxOUSx9LsoLJd+GAYe3NYdM/8KVumCWAMA/J2yDKWoo1RWG3h +zvhseZJUNKspDnYyd5c3ugswytCfIsxxnXYUhw34bxTPqI2CHB4OXcsXNfc9wGZnnvy vIVJWgsFblVH7QxkB8sx6he9EVLicb4uo/FHTXptUWxW/bP7mUR3cvaG75ESUXKWXI0S ZsNCdoENGjSltuUZ4XxBqexLoxo4tx24mVk/4eLuPkbG083oIlGIxzjPQAeqtIb74jjF s+LQ== X-Gm-Message-State: ANoB5plITuIClPm9y14B0Bvt7ovV7kNIfMzfoaBfjWTsiWp28zBP6qwL sK6T26Jxh4Vmw1H2jAuCP7LaEpMVtTs= X-Google-Smtp-Source: AA0mqf4xYnJCkXbWk/N31ZRo5enbQfT7p8hAsoCQiyumsmQYs6alw3yUJytbRmVQwuUcUkB1fPIndjJ7nUc= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:6a00:1624:b0:573:993b:ea6d with SMTP id e4-20020a056a00162400b00573993bea6dmr46050829pfc.10.1669849814934; Wed, 30 Nov 2022 15:10:14 -0800 (PST) Date: Wed, 30 Nov 2022 23:09:06 +0000 In-Reply-To: <20221130230934.1014142-1-seanjc@google.com> Mime-Version: 1.0 References: <20221130230934.1014142-1-seanjc@google.com> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog Message-ID: <20221130230934.1014142-23-seanjc@google.com> Subject: [PATCH v2 22/50] KVM: MIPS: Setup VZ emulation? directly from kvm_mips_init() From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Huacai Chen , Aleksandar Markovic , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Matthew Rosato , Eric Farman , Sean Christopherson , Vitaly Kuznetsov , David Woodhouse , Paul Durrant Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Sean Christopherson Cc: kvm@vger.kernel.org, David Hildenbrand , Atish Patra , linux-kernel@vger.kernel.org, Kai Huang , linux-riscv@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-s390@vger.kernel.org, Chao Gao , Suzuki K Poulose , Yuan Yao , kvmarm@lists.linux.dev, Thomas Gleixner , Alexandru Elisei , linux-arm-kernel@lists.infradead.org, Isaku Yamahata , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Fabiano Rosas , Cornelia Huck , linux-mips@vger.kernel.org, Oliver Upton , James Morse , kvm-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Invoke kvm_mips_emulation_init() directly from kvm_mips_init() instead of bouncing through kvm_init()=3D>kvm_arch_init(). Functionally, this is a glorified nop as invoking kvm_arch_init() is the very first action performed by kvm_init(). Emptying kvm_arch_init() will allow dropping the hook entirely once all architecture implementations are nops. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- arch/mips/kvm/mips.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index f0a6c245d1ff..75681281e2df 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1012,7 +1012,7 @@ long kvm_arch_vm_ioctl(struct file *filp, unsigned in= t ioctl, unsigned long arg) =20 int kvm_arch_init(void *opaque) { - return kvm_mips_emulation_init(); + return 0; } =20 void kvm_arch_exit(void) @@ -1636,6 +1636,10 @@ static int __init kvm_mips_init(void) if (ret) return ret; =20 + ret =3D kvm_mips_emulation_init(); + if (ret) + return ret; + ret =3D kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); =20 if (ret) --=20 2.38.1.584.g0f3c55d4c2-goog From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A5A2DC4321E for ; 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charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org SW52b2tlIGt2bV9taXBzX2VtdWxhdGlvbl9pbml0KCkgZGlyZWN0bHkgZnJvbSBrdm1fbWlwc19p bml0KCkgaW5zdGVhZApvZiBib3VuY2luZyB0aHJvdWdoIGt2bV9pbml0KCk9Pmt2bV9hcmNoX2lu aXQoKS4gIEZ1bmN0aW9uYWxseSwgdGhpcyBpcwphIGdsb3JpZmllZCBub3AgYXMgaW52b2tpbmcg a3ZtX2FyY2hfaW5pdCgpIGlzIHRoZSB2ZXJ5IGZpcnN0IGFjdGlvbgpwZXJmb3JtZWQgYnkga3Zt X2luaXQoKS4KCkVtcHR5aW5nIGt2bV9hcmNoX2luaXQoKSB3aWxsIGFsbG93IGRyb3BwaW5nIHRo ZSBob29rIGVudGlyZWx5IG9uY2UgYWxsCmFyY2hpdGVjdHVyZSBpbXBsZW1lbnRhdGlvbnMgYXJl IG5vcHMuCgpObyBmdW5jdGlvbmFsIGNoYW5nZSBpbnRlbmRlZC4KClNpZ25lZC1vZmYtYnk6IFNl YW4gQ2hyaXN0b3BoZXJzb24gPHNlYW5qY0Bnb29nbGUuY29tPgpSZXZpZXdlZC1ieTogUGhpbGlw cGUgTWF0aGlldS1EYXVkw6kgPHBoaWxtZEBsaW5hcm8ub3JnPgotLS0KIGFyY2gvbWlwcy9rdm0v bWlwcy5jIHwgNiArKysrKy0KIDEgZmlsZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKyksIDEgZGVs ZXRpb24oLSkKCmRpZmYgLS1naXQgYS9hcmNoL21pcHMva3ZtL21pcHMuYyBiL2FyY2gvbWlwcy9r dm0vbWlwcy5jCmluZGV4IGYwYTZjMjQ1ZDFmZi4uNzU2ODEyODFlMmRmIDEwMDY0NAotLS0gYS9h cmNoL21pcHMva3ZtL21pcHMuYworKysgYi9hcmNoL21pcHMva3ZtL21pcHMuYwpAQCAtMTAxMiw3 ICsxMDEyLDcgQEAgbG9uZyBrdm1fYXJjaF92bV9pb2N0bChzdHJ1Y3QgZmlsZSAqZmlscCwgdW5z aWduZWQgaW50IGlvY3RsLCB1bnNpZ25lZCBsb25nIGFyZykKIAogaW50IGt2bV9hcmNoX2luaXQo dm9pZCAqb3BhcXVlKQogewotCXJldHVybiBrdm1fbWlwc19lbXVsYXRpb25faW5pdCgpOworCXJl dHVybiAwOwogfQogCiB2b2lkIGt2bV9hcmNoX2V4aXQodm9pZCkKQEAgLTE2MzYsNiArMTYzNiwx MCBAQCBzdGF0aWMgaW50IF9faW5pdCBrdm1fbWlwc19pbml0KHZvaWQpCiAJaWYgKHJldCkKIAkJ cmV0dXJuIHJldDsKIAorCXJldCA9IGt2bV9taXBzX2VtdWxhdGlvbl9pbml0KCk7CisJaWYgKHJl dCkKKwkJcmV0dXJuIHJldDsKKwogCXJldCA9IGt2bV9pbml0KE5VTEwsIHNpemVvZihzdHJ1Y3Qg a3ZtX3ZjcHUpLCAwLCBUSElTX01PRFVMRSk7CiAKIAlpZiAocmV0KQotLSAKMi4zOC4xLjU4NC5n MGYzYzU1ZDRjMi1nb29nCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJh ZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51 eC1yaXNjdgo=