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Mon, 6 Jul 2020 16:42:23 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8C9047B40D; Mon, 6 Jul 2020 16:42:23 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PULL 32/53] target/i386: sev: provide proper error reporting for query-sev-capabilities Date: Mon, 6 Jul 2020 12:41:34 -0400 Message-Id: <20200706164155.24696-33-pbonzini@redhat.com> In-Reply-To: <20200706164155.24696-1-pbonzini@redhat.com> References: <20200706164155.24696-1-pbonzini@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=pbonzini@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/06 01:22:37 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The query-sev-capabilities was reporting errors through error_report; change it to use Error** so that the cause of the failure is clearer. Reviewed-by: Eric Blake Signed-off-by: Paolo Bonzini --- target/i386/monitor.c | 10 +--------- target/i386/sev-stub.c | 3 ++- target/i386/sev.c | 18 +++++++++--------- target/i386/sev_i386.h | 2 +- 4 files changed, 13 insertions(+), 20 deletions(-) diff --git a/target/i386/monitor.c b/target/i386/monitor.c index 27ebfa3ad2..7abae3c8df 100644 --- a/target/i386/monitor.c +++ b/target/i386/monitor.c @@ -726,13 +726,5 @@ SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp) SevCapability *qmp_query_sev_capabilities(Error **errp) { - SevCapability *data; - - data = sev_get_capabilities(); - if (!data) { - error_setg(errp, "SEV feature is not available"); - return NULL; - } - - return data; + return sev_get_capabilities(errp); } diff --git a/target/i386/sev-stub.c b/target/i386/sev-stub.c index e5ee13309c..88e3f39a1e 100644 --- a/target/i386/sev-stub.c +++ b/target/i386/sev-stub.c @@ -44,7 +44,8 @@ char *sev_get_launch_measurement(void) return NULL; } -SevCapability *sev_get_capabilities(void) +SevCapability *sev_get_capabilities(Error **errp) { + error_setg(errp, "SEV is not available in this QEMU"); return NULL; } diff --git a/target/i386/sev.c b/target/i386/sev.c index d273174ad3..70f9ee026f 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -399,7 +399,7 @@ sev_get_info(void) static int sev_get_pdh_info(int fd, guchar **pdh, size_t *pdh_len, guchar **cert_chain, - size_t *cert_chain_len) + size_t *cert_chain_len, Error **errp) { guchar *pdh_data = NULL; guchar *cert_chain_data = NULL; @@ -410,8 +410,8 @@ sev_get_pdh_info(int fd, guchar **pdh, size_t *pdh_len, guchar **cert_chain, r = sev_platform_ioctl(fd, SEV_PDH_CERT_EXPORT, &export, &err); if (r < 0) { if (err != SEV_RET_INVALID_LEN) { - error_report("failed to export PDH cert ret=%d fw_err=%d (%s)", - r, err, fw_error_to_str(err)); + error_setg(errp, "failed to export PDH cert ret=%d fw_err=%d (%s)", + r, err, fw_error_to_str(err)); return 1; } } @@ -423,8 +423,8 @@ sev_get_pdh_info(int fd, guchar **pdh, size_t *pdh_len, guchar **cert_chain, r = sev_platform_ioctl(fd, SEV_PDH_CERT_EXPORT, &export, &err); if (r < 0) { - error_report("failed to export PDH cert ret=%d fw_err=%d (%s)", - r, err, fw_error_to_str(err)); + error_setg(errp, "failed to export PDH cert ret=%d fw_err=%d (%s)", + r, err, fw_error_to_str(err)); goto e_free; } @@ -441,7 +441,7 @@ e_free: } SevCapability * -sev_get_capabilities(void) +sev_get_capabilities(Error **errp) { SevCapability *cap = NULL; guchar *pdh_data = NULL; @@ -452,13 +452,13 @@ sev_get_capabilities(void) fd = open(DEFAULT_SEV_DEVICE, O_RDWR); if (fd < 0) { - error_report("%s: Failed to open %s '%s'", __func__, - DEFAULT_SEV_DEVICE, strerror(errno)); + error_setg_errno(errp, errno, "Failed to open %s", + DEFAULT_SEV_DEVICE); return NULL; } if (sev_get_pdh_info(fd, &pdh_data, &pdh_len, - &cert_chain_data, &cert_chain_len)) { + &cert_chain_data, &cert_chain_len, errp)) { goto out; } diff --git a/target/i386/sev_i386.h b/target/i386/sev_i386.h index 8eb7de1bef..4db6960f60 100644 --- a/target/i386/sev_i386.h +++ b/target/i386/sev_i386.h @@ -34,6 +34,6 @@ extern SevInfo *sev_get_info(void); extern uint32_t sev_get_cbit_position(void); extern uint32_t sev_get_reduced_phys_bits(void); extern char *sev_get_launch_measurement(void); -extern SevCapability *sev_get_capabilities(void); +extern SevCapability *sev_get_capabilities(Error **errp); #endif