From nobody Fri Apr 26 13:51:50 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=digitalocean.com ARC-Seal: i=1; a=rsa-sha256; t=1570651200; cv=none; d=zoho.com; s=zohoarc; b=KLTCxs0P8G/EnaRgUUtBhomYZRuMBRGYmuss2WsvGPkS/LCsdz8xyOjL8L13D4SpQcGCRlclv8yZgKsBKlh0ixg0KUnExlv2b+4HgKiDrPWwm4ZwEHz9ipMRCRZBqhzc9bwuj3PT/WeDqC1U0MsuEcPT83ozxpSIzaHgZZVD1d4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1570651200; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=J4YN86Aqb6P3nZBxZGbSB3JP/PFIgkq5SLiK3nAUEks=; b=opFpy2yBGGHKkUqUz2PnDvVS4aTLwrNA5f19A9J9pWR7pXy8Mru3/npkzvm64jUfitL3eM9VpTQmcNpR9jD9dOenPJFqTkGEfOGkeo3uBttr3yYlNycXffd4dlsuQBq509VLa+ow3N7ZG2qc9ni4xfprPPNcLfTpvXx5uKTVqg4= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=pass; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=reject dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1570651200770168.0511817794628; Wed, 9 Oct 2019 13:00:00 -0700 (PDT) Received: from localhost ([::1]:56388 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iII7q-0008TK-TJ for importer@patchew.org; Wed, 09 Oct 2019 15:59:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56161) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIF5v-0001mG-Hq for qemu-devel@nongnu.org; Wed, 09 Oct 2019 12:45:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iIF5u-0001fm-65 for qemu-devel@nongnu.org; Wed, 09 Oct 2019 12:45:47 -0400 Received: from mail-oi1-x234.google.com ([2607:f8b0:4864:20::234]:46056) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iIF5u-0001fT-0J for qemu-devel@nongnu.org; Wed, 09 Oct 2019 12:45:46 -0400 Received: by mail-oi1-x234.google.com with SMTP id o205so2306669oib.12 for ; Wed, 09 Oct 2019 09:45:45 -0700 (PDT) Received: from msmarduch-ThinkPad-T460s.attlocal.net ([2600:1700:4a30:84c0:8d5e:794e:8a2e:ee89]) by smtp.gmail.com with ESMTPSA id q1sm789818otn.8.2019.10.09.09.45.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 Oct 2019 09:45:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=digitalocean.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=J4YN86Aqb6P3nZBxZGbSB3JP/PFIgkq5SLiK3nAUEks=; b=Bg7qinyHGcIxIzh43Gh4AvNI1I8OAA9q3iGmWryMw9LKOHzcx8iehStOSOe90nGVrN s1BEiUMGVZA7uIyAn8LBBOGqTWObdreWCnaDf0kOYzpR9S4868LolXH3Sm8GRULs4Xyv Q2jb/nIgZNtC3U92+IbdLeQ0qUj7mGVIodjCI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=J4YN86Aqb6P3nZBxZGbSB3JP/PFIgkq5SLiK3nAUEks=; b=AbwUGWfBJnv2wAlOR5JfEwYmRYVY8fCYanI7Nj7geD7vt2dDgoVF9kNAs6scbdzFjB ZFSbWQbccB0EnibNeK+LOTPq0g1n6LnrgzuxcGGJ1jA4jzJQeYhycbn1Bw1ocjkm0pyK x3JvUxp0OYAnU+IUaKlKYnzRjl7xYyY8kVt30mhKRKJ7tOE8Gf9vhx6JsR3p4pPwP/4x 29f5ci4Ox3XolSOgpnBg5QS4xN7pxbSCOvcm05P+dEjmSqihTfPau7aeWc/kOdpUN7ru aJCRA/z6BNDkf4XVARhol9VmnEE/5P4vWJ16x0WSjM4t0ailJd23OCBRlqZLagFkq8wr l6EA== X-Gm-Message-State: APjAAAW7bIc+cZKteiVGrQquz5p0/+4MJ09CMLBcFm8TxcBV3TKuu3/8 pth1/yyBIKIFsr7kRGOqnbjLBA== X-Google-Smtp-Source: APXvYqxpgL1jB9NOpbCUjK6IIrbvQI84iUiBkIeqIv5KGQqsTORaTjnKwLcKMnp6ml9ZTTs/VvYnAQ== X-Received: by 2002:aca:90f:: with SMTP id 15mr3195748oij.92.1570639544552; Wed, 09 Oct 2019 09:45:44 -0700 (PDT) From: Mario Smarduch To: philmd@redhat.com, mtosatti@redhat.com, pbonzini@redhat.com, armbru@redhat.com Cc: qemu-devel@nongnu.org, qemu-trivial@nongnu.org, rth@twiddle.net, ehabkost@redhat.com, Mario Smarduch Subject: [PATCHv2 1/2] util/qemu-error: add guest name helper with -msg options Date: Wed, 9 Oct 2019 09:44:58 -0700 Message-Id: <20191009164459.8209-2-msmarduch@digitalocean.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20191009164459.8209-1-msmarduch@digitalocean.com> References: <20191009164459.8209-1-msmarduch@digitalocean.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::234 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @digitalocean.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This patch adds an option to enable/disable printing lead guest name in logging messages. A '-msg name=3Don|off' allows to turn on, off guest name logging. If guest name is not set disabling this makes sense. Verified with all combinations of=20 '-msg timestamp=3Dyes|no,name=3Dyes|no. Signed-off-by: Mario Smarduch --- include/qemu/error-report.h | 1 + qemu-options.hx | 10 ++++++---- util/qemu-error.c | 31 +++++++++++++++++++++++++++++++ vl.c | 5 +++++ 4 files changed, 43 insertions(+), 4 deletions(-) diff --git a/include/qemu/error-report.h b/include/qemu/error-report.h index 00d069b..9b44a06 100644 --- a/include/qemu/error-report.h +++ b/include/qemu/error-report.h @@ -74,5 +74,6 @@ void error_init(const char *argv0); =20 const char *error_get_progname(void); extern bool enable_timestamp_msg; +extern bool enable_guestname_msg; =20 #endif diff --git a/qemu-options.hx b/qemu-options.hx index 2a04ca6..6066001 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4164,14 +4164,16 @@ HXCOMM Deprecated by -accel tcg DEF("no-kvm", 0, QEMU_OPTION_no_kvm, "", QEMU_ARCH_I386) =20 DEF("msg", HAS_ARG, QEMU_OPTION_msg, - "-msg timestamp[=3Don|off]\n" + "-msg [timestamp=3Don|off][name=3Don|off]\n" " change the format of messages\n" - " on|off controls leading timestamps (default:on)\n", + " timestamp=3Don|off controls leading timestamps (defau= lt: on)\n" + " name=3Don|off controls leading guest name (default: o= ff)\n", QEMU_ARCH_ALL) STEXI -@item -msg timestamp[=3Don|off] +@item -msg timestamp=3Don|off +@item -msg name=3Don|off @findex -msg -prepend a timestamp to each log message.(default:on) +Prepend additional information to each log message ETEXI =20 DEF("dump-vmstate", HAS_ARG, QEMU_OPTION_dump_vmstate, diff --git a/util/qemu-error.c b/util/qemu-error.c index f373f3b..8ece7b2 100644 --- a/util/qemu-error.c +++ b/util/qemu-error.c @@ -11,6 +11,8 @@ */ =20 #include "qemu/osdep.h" +#include "qemu/option.h" +#include "qemu/config-file.h" #include "monitor/monitor.h" #include "qemu/error-report.h" =20 @@ -192,6 +194,8 @@ static void print_loc(void) } =20 bool enable_timestamp_msg; +bool enable_guestname_msg; + /* * Print a message to current monitor if we have one, else to stderr. * @report_type is the type of message: error, warning or informational. @@ -228,6 +232,27 @@ static void vreport(report_type type, const char *fmt,= va_list ap) error_printf("\n"); } =20 +static const char *error_get_guestname(void) +{ + QemuOpts *opts =3D qemu_opts_find(qemu_find_opts("name"), NULL); + return qemu_opt_get(opts, "guest"); +} + +/* + * Also print the guest name, handy if we log to a server. + */ +static void error_print_guestname(void) +{ + const char *name; + + if (enable_guestname_msg) { + name =3D error_get_guestname(); + if (name && !cur_mon) { + error_printf("Guest [%s] ", name); + } + } +} + /* * Print an error message to current monitor if we have one, else to stder= r. * Format arguments like vsprintf(). The resulting message should be @@ -237,6 +262,7 @@ static void vreport(report_type type, const char *fmt, = va_list ap) */ void error_vreport(const char *fmt, va_list ap) { + error_print_guestname(); vreport(REPORT_TYPE_ERROR, fmt, ap); } =20 @@ -248,6 +274,7 @@ void error_vreport(const char *fmt, va_list ap) */ void warn_vreport(const char *fmt, va_list ap) { + error_print_guestname(); vreport(REPORT_TYPE_WARNING, fmt, ap); } =20 @@ -274,6 +301,7 @@ void error_report(const char *fmt, ...) { va_list ap; =20 + error_print_guestname(); va_start(ap, fmt); vreport(REPORT_TYPE_ERROR, fmt, ap); va_end(ap); @@ -289,6 +317,7 @@ void warn_report(const char *fmt, ...) { va_list ap; =20 + error_print_guestname(); va_start(ap, fmt); vreport(REPORT_TYPE_WARNING, fmt, ap); va_end(ap); @@ -324,6 +353,7 @@ bool error_report_once_cond(bool *printed, const char *= fmt, ...) return false; } *printed =3D true; + error_print_guestname(); va_start(ap, fmt); vreport(REPORT_TYPE_ERROR, fmt, ap); va_end(ap); @@ -344,6 +374,7 @@ bool warn_report_once_cond(bool *printed, const char *f= mt, ...) return false; } *printed =3D true; + error_print_guestname(); va_start(ap, fmt); vreport(REPORT_TYPE_WARNING, fmt, ap); va_end(ap); diff --git a/vl.c b/vl.c index 002bf49..024bdc6 100644 --- a/vl.c +++ b/vl.c @@ -417,6 +417,10 @@ static QemuOptsList qemu_msg_opts =3D { .name =3D "timestamp", .type =3D QEMU_OPT_BOOL, }, + { + .name =3D "name", + .type =3D QEMU_OPT_BOOL, + }, { /* end of list */ } }, }; @@ -1263,6 +1267,7 @@ static void realtime_init(void) static void configure_msg(QemuOpts *opts) { enable_timestamp_msg =3D qemu_opt_get_bool(opts, "timestamp", true); + enable_guestname_msg =3D qemu_opt_get_bool(opts, "name", false); } =20 =20 --=20 2.9.3 From nobody Fri Apr 26 13:51:50 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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b=e/rdw9E2C7bjXb8BFV0eq68WSYi3qFeBtCjXPzhcWMkg4gc0yDc89ToWd5W2gzoirH 6iooZM5IiznY2wZp7rfQ96fw3/N5zo9yp7ksHYib3e7eT5pEd+1MkYG2Q1v5/oMjrD0+ nCb3eHvcwXCU9XiQxrxWBXc4MTVP/k7J6rpdP8VqUmNg1SLxOM5G4DoAuW3nq64fKsn8 52GsL/t1cZCZfQqcKi4bC1gL1dFKi7pyEQfq04OFkT/qjVVvlcjadyrKE4QGT3Z6Yo5O QH1LvrissHfbzn4138gCCXyMe41tDdvxWdwMc+tWjEpj9eJq9NGTPHZJgJmFTQlKQaNT MHKQ== X-Gm-Message-State: APjAAAW6WHvwKAFqpANSfZsellaPUeVF5gsolUv+UZHcwQRddSEj7yhP LptHII5ChhPluNjZMuuajf1ZrQ== X-Google-Smtp-Source: APXvYqzSykY2vXaWT1phz43fJDxY1HjvHG5KdsjA7bg8aI5Ho+b967sZD4OAa21R66F5htQHVrwqGg== X-Received: by 2002:a54:4519:: with SMTP id l25mr3163818oil.143.1570639557881; Wed, 09 Oct 2019 09:45:57 -0700 (PDT) From: Mario Smarduch To: philmd@redhat.com, mtosatti@redhat.com, pbonzini@redhat.com, armbru@redhat.com Cc: qemu-devel@nongnu.org, qemu-trivial@nongnu.org, rth@twiddle.net, ehabkost@redhat.com, Mario Smarduch Subject: [PATCHv2 2/2] target/i386: log MCE guest and host addresses Date: Wed, 9 Oct 2019 09:44:59 -0700 Message-Id: <20191009164459.8209-3-msmarduch@digitalocean.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20191009164459.8209-1-msmarduch@digitalocean.com> References: <20191009164459.8209-1-msmarduch@digitalocean.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::243 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @digitalocean.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Patch logs MCE AO, AR messages injected to guest or taken by QEMU itself. We print the QEMU address for guest MCEs, helps on hypervisors that have another source of MCE logging like mce log, and when they go missing. For example we found these QEMU logs: September 26th 2019, 17:36:02.309 Droplet-153258224: Guest MCE Memor= y Error at qemu addr 0x7f8ce14f5000 and guest 3d6f5000 addr of type BUS_MCE= ERR_AR injected qemu-system-x86_64 amsN ams3nodeNNNN September 27th 2019, 06:25:03.234 Droplet-153258224: Guest MCE Memor= y Error at qemu addr 0x7f8ce14f5000 and guest 3d6f5000 addr of type BUS_MCE= ERR_AR injected qemu-system-x86_64 amsN ams3nodeNNNN The first log had a corresponding mce log entry, the second didnt (logging thresholds) we can infer from second entry same PA and mce type. Signed-off-by: Mario Smarduch --- target/i386/kvm.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 11b9c85..7eeefac 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -592,9 +592,9 @@ static void kvm_mce_inject(X86CPU *cpu, hwaddr paddr, i= nt code) (MCM_ADDR_PHYS << 6) | 0xc, flags); } =20 -static void hardware_memory_error(void) +static void hardware_memory_error(void *host_addr) { - fprintf(stderr, "Hardware memory error!\n"); + error_report("QEMU got Hardware memory error at addr %p", host_addr); exit(1); } =20 @@ -618,15 +618,34 @@ void kvm_arch_on_sigbus_vcpu(CPUState *c, int code, v= oid *addr) kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)= ) { kvm_hwpoison_page_add(ram_addr); kvm_mce_inject(cpu, paddr, code); + + /* + * Use different logging severity based on error type. + * If there is additional MCE reporting on the hypervisor, QEM= U VA + * could be another source to identify the PA and MCE details. + */ + if (code =3D=3D BUS_MCEERR_AR) { + error_report("Guest MCE Memory Error at QEMU addr %p and " + "GUEST addr 0x%" HWADDR_PRIx " of type %s injected", + addr, paddr, "BUS_MCEERR_AR"); + } else { + warn_report("Guest MCE Memory Error at QEMU addr %p and " + "GUEST addr 0x%" HWADDR_PRIx " of type %s injected", + addr, paddr, "BUS_MCEERR_AO"); + } + return; } =20 - fprintf(stderr, "Hardware memory error for memory used by " - "QEMU itself instead of guest system!\n"); + if (code =3D=3D BUS_MCEERR_AO) { + warn_report("Hardware memory error at addr %p of type %s " + "for memory used by QEMU itself instead of guest system!", + addr, "BUS_MCEERR_AO"); + } } =20 if (code =3D=3D BUS_MCEERR_AR) { - hardware_memory_error(); + hardware_memory_error(addr); } =20 /* Hope we are lucky for AO MCE */ --=20 2.9.3