From patchwork Thu Jun 4 06:42:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 11586981 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7F1EE60D for ; Thu, 4 Jun 2020 06:47:02 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 553F4207DA for ; Thu, 4 Jun 2020 06:47:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="W8Kv2kcJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 553F4207DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:44242 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jgjeX-00052p-Ip for patchwork-qemu-devel@patchwork.kernel.org; Thu, 04 Jun 2020 02:47:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39992) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jgjaG-00051E-Dn for qemu-devel@nongnu.org; Thu, 04 Jun 2020 02:42:36 -0400 Received: from ozlabs.org ([203.11.71.1]:41657) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jgjaF-0000nU-FC for qemu-devel@nongnu.org; Thu, 04 Jun 2020 02:42:36 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 49cx6C5g18z9sTL; Thu, 4 Jun 2020 16:42:27 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1591252947; bh=GLsLYxc2PjN1+1LUp/caZlHg/ICb1byIBHQiQsQcEYs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W8Kv2kcJEBAFmJoDP+vTL9By+ABtQfLK6JmmGaHLX6tIzL5W2/9l/QRbfbhHOUbHP CTbYKe0Apa1qwVZvgTcbXrm2uuqkBArsHd6M9L45z4M54DtVXdZA6z9TSEsjVSSiIN jhOZjlTBJmXlJMHJGv1jmtHbwcFnnhmZObzyyYNY= From: David Gibson To: rth@twiddle.net, pbonzini@redhat.com, ekabkost@redhat.com, qemu-devel@nongnu.org Subject: [PATCH 6/9] target/i386: sev: Remove redundant cbitpos and reduced_phys_bits fields Date: Thu, 4 Jun 2020 16:42:16 +1000 Message-Id: <20200604064219.436242-7-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200604064219.436242-1-david@gibson.dropbear.id.au> References: <20200604064219.436242-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/04 02:12:28 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: brijesh.singh@amd.com, Eduardo Habkost , Richard Henderson , dgilbert@redhat.com, philmd@redhat.com, David Gibson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" The SEVState structure has cbitpos and reduced_phys_bits fields which are simply copied from the SevGuestState structure and never changed. Now that SEVState is embedded in SevGuestState we can just access the original copy directly. Signed-off-by: David Gibson Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson --- target/i386/sev.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/target/i386/sev.c b/target/i386/sev.c index 9e8ab7b056..d25af37136 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -41,8 +41,6 @@ struct SEVState { uint8_t build_id; uint32_t policy; uint64_t me_mask; - uint32_t cbitpos; - uint32_t reduced_phys_bits; uint32_t handle; int sev_fd; SevState state; @@ -378,13 +376,13 @@ sev_get_me_mask(void) uint32_t sev_get_cbit_position(void) { - return sev_guest ? sev_guest->state.cbitpos : 0; + return sev_guest ? sev_guest->cbitpos : 0; } uint32_t sev_get_reduced_phys_bits(void) { - return sev_guest ? sev_guest->state.reduced_phys_bits : 0; + return sev_guest ? sev_guest->reduced_phys_bits : 0; } SevInfo * @@ -713,22 +711,19 @@ sev_guest_init(const char *id) host_cpuid(0x8000001F, 0, NULL, &ebx, NULL, NULL); host_cbitpos = ebx & 0x3f; - s->cbitpos = object_property_get_int(OBJECT(sev), "cbitpos", NULL); - if (host_cbitpos != s->cbitpos) { + if (host_cbitpos != sev->cbitpos) { error_report("%s: cbitpos check failed, host '%d' requested '%d'", - __func__, host_cbitpos, s->cbitpos); + __func__, host_cbitpos, sev->cbitpos); goto err; } - s->reduced_phys_bits = object_property_get_int(OBJECT(sev), - "reduced-phys-bits", NULL); - if (s->reduced_phys_bits < 1) { + if (sev->reduced_phys_bits < 1) { error_report("%s: reduced_phys_bits check failed, it should be >=1," - " requested '%d'", __func__, s->reduced_phys_bits); + " requested '%d'", __func__, sev->reduced_phys_bits); goto err; } - s->me_mask = ~(1UL << s->cbitpos); + s->me_mask = ~(1UL << sev->cbitpos); devname = object_property_get_str(OBJECT(sev), "sev-device", NULL); s->sev_fd = open(devname, O_RDWR);