From patchwork Thu May 21 03:42:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 11562161 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 DFD0B1668 for ; Thu, 21 May 2020 03:43:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C89452078B for ; Thu, 21 May 2020 03:43:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="knDP1MsA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728208AbgEUDnP (ORCPT ); Wed, 20 May 2020 23:43:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728176AbgEUDnO (ORCPT ); Wed, 20 May 2020 23:43:14 -0400 Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F9F7C061A0E for ; Wed, 20 May 2020 20:43:14 -0700 (PDT) Received: by ozlabs.org (Postfix, from userid 1007) id 49SFnr5r2Xz9sTR; Thu, 21 May 2020 13:43:12 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1590032592; bh=ScMyXOHqlJVI3Y1EURo7w0uOiUqN2ce3gWfMmvqVEj8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=knDP1MsAdW5AS+OF9SvJzk38ZzvnXZIHwzpMsGnn8Mrgpb6ONJSXQfLIS64r1ZVfa QvFYVtVJGCVB9dMtxu5MO26mlnrNnEFfWVbJcr/uKzQ63eOjnl1kjP39kERMJwnx+Z Ekprw22f8M9nnt/GzDOBfRKYi0e5tJU89B6rP4is= From: David Gibson To: qemu-devel@nongnu.org, brijesh.singh@amd.com, frankja@linux.ibm.com, dgilbert@redhat.com, pair@us.ibm.com Cc: qemu-ppc@nongnu.org, kvm@vger.kernel.org, David Gibson , mdroth@linux.vnet.ibm.com, cohuck@redhat.com, Marcel Apfelbaum , Paolo Bonzini , "Michael S. Tsirkin" , Richard Henderson , Eduardo Habkost Subject: [RFC v2 04/18] target/i386: sev: Embed SEVState in SevGuestState Date: Thu, 21 May 2020 13:42:50 +1000 Message-Id: <20200521034304.340040-5-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200521034304.340040-1-david@gibson.dropbear.id.au> References: <20200521034304.340040-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Currently SevGuestState contains only configuration information. For runtime state another non-QOM struct SEVState is allocated separately. Simplify things by instead embedding the SEVState structure in SevGuestState. Signed-off-by: David Gibson Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson --- target/i386/sev.c | 54 +++++++++++++++++++++++++---------------------- 1 file changed, 29 insertions(+), 25 deletions(-) diff --git a/target/i386/sev.c b/target/i386/sev.c index b6ed719fb5..b4ab9720d6 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -35,6 +35,22 @@ typedef struct SevGuestState SevGuestState; +struct SEVState { + uint8_t api_major; + uint8_t api_minor; + 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; + gchar *measurement; +}; + +typedef struct SEVState SEVState; + /** * SevGuestState: * @@ -48,6 +64,7 @@ typedef struct SevGuestState SevGuestState; struct SevGuestState { Object parent_obj; + /* configuration parameters */ char *sev_device; uint32_t policy; uint32_t handle; @@ -55,25 +72,11 @@ struct SevGuestState { char *session_file; uint32_t cbitpos; uint32_t reduced_phys_bits; -}; -struct SEVState { - SevGuestState *sev_info; - uint8_t api_major; - uint8_t api_minor; - 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; - gchar *measurement; + /* runtime state */ + SEVState state; }; -typedef struct SEVState SEVState; - #define DEFAULT_GUEST_POLICY 0x1 /* disable debug */ #define DEFAULT_SEV_DEVICE "/dev/sev" @@ -506,12 +509,12 @@ sev_read_file_base64(const char *filename, guchar **data, gsize *len) } static int -sev_launch_start(SEVState *s) +sev_launch_start(SevGuestState *sev) { + SEVState *s = &sev->state; gsize sz; int ret = 1; int fw_error, rc; - SevGuestState *sev = s->sev_info; struct kvm_sev_launch_start *start; guchar *session = NULL, *dh_cert = NULL; @@ -686,6 +689,7 @@ sev_vm_state_change(void *opaque, int running, RunState state) void * sev_guest_init(const char *id) { + SevGuestState *sev; SEVState *s; char *devname; int ret, fw_error; @@ -693,27 +697,27 @@ sev_guest_init(const char *id) uint32_t host_cbitpos; struct sev_user_data_status status = {}; - sev_state = s = g_new0(SEVState, 1); - s->sev_info = lookup_sev_guest_info(id); - if (!s->sev_info) { + sev = lookup_sev_guest_info(id); + if (!sev) { error_report("%s: '%s' is not a valid '%s' object", __func__, id, TYPE_SEV_GUEST); goto err; } + sev_state = s = &sev->state; s->state = SEV_STATE_UNINIT; host_cpuid(0x8000001F, 0, NULL, &ebx, NULL, NULL); host_cbitpos = ebx & 0x3f; - s->cbitpos = object_property_get_int(OBJECT(s->sev_info), "cbitpos", NULL); + s->cbitpos = object_property_get_int(OBJECT(sev), "cbitpos", NULL); if (host_cbitpos != s->cbitpos) { error_report("%s: cbitpos check failed, host '%d' requested '%d'", __func__, host_cbitpos, s->cbitpos); goto err; } - s->reduced_phys_bits = object_property_get_int(OBJECT(s->sev_info), + s->reduced_phys_bits = object_property_get_int(OBJECT(sev), "reduced-phys-bits", NULL); if (s->reduced_phys_bits < 1) { error_report("%s: reduced_phys_bits check failed, it should be >=1," @@ -723,7 +727,7 @@ sev_guest_init(const char *id) s->me_mask = ~(1UL << s->cbitpos); - devname = object_property_get_str(OBJECT(s->sev_info), "sev-device", NULL); + devname = object_property_get_str(OBJECT(sev), "sev-device", NULL); s->sev_fd = open(devname, O_RDWR); if (s->sev_fd < 0) { error_report("%s: Failed to open %s '%s'", __func__, @@ -754,7 +758,7 @@ sev_guest_init(const char *id) goto err; } - ret = sev_launch_start(s); + ret = sev_launch_start(sev); if (ret) { error_report("%s: failed to create encryption context", __func__); goto err;