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[46.102.197.194]) by smtp.gmail.com with ESMTPSA id e14-20020a170906504e00b00a558014ab2csm14165324ejk.145.2024.04.30.05.47.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Apr 2024 05:47:29 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: ce6a27ca-06ef-11ef-b4bb-af5377834399 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloud.com; s=cloud; t=1714481249; x=1715086049; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=wMnmkNjA1BInUsP0IVDeKNq5vnJN5ZIs/BtVpY7OG3w=; b=jFK1RWmnT/FqkJSImpJEaqk9iZdHGtwfxqVT0nJhizHmJVhTkT9+/My/84Vud0Bv3y fhq4h59UGjWuE48/l74N7q/1R/0nhZx3BRRIqq8pYw4aJEFqzIz2KEjIWLFmogAPrFmg tRxgtnT60fL+CjBd/61tawyRtPTOJg5G+my7E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714481249; x=1715086049; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=wMnmkNjA1BInUsP0IVDeKNq5vnJN5ZIs/BtVpY7OG3w=; b=SJe8PSxvRnnEuhZ2qnW4LPnRBgapMrGA78VrL3dAT3KDlKBSVMtDJJapjr/9K2wJIe ua2ASjtCdSM2INp+gfjfu80LrVv5ZV9pc71LS0lvaUYy92Nw1ulo0mp4vR5rNCMoty/N xE+ciiLilGjcVorA9jDVKzmZcGVmOkyxa1qJXhEICO+QVaHYFoJoGS11TbYBljdk16CN RQc071An9n4f0aO0polpkKxF+tAM+LSjBh9vXX9DYU8rrUqyxrZ4bS2YWQxLLalsgjGV /QzekEYvyTH9bJlo9IT2b2TNKZmljLRQhT9KaL+nj2VL6u+YAQ1hmjYW6As0IcZ4vdBp w8eA== X-Gm-Message-State: AOJu0YyftWj2FAMPTZmIXhneo/gUT8GWFqRoUcEKHmuL+fblCgQREWDr ZcEs/gO8XQM5/lGPUC48MUu2fWrgqwAU1gCAr3Y6LQ2Lq/UZbM7pKJpeIQN1bVKncc8+dxADw/f K X-Google-Smtp-Source: AGHT+IHuGgBj+b4p0staZvEOfZNUXXfaKd46jbkmS+YqCxuThRZx9jRiLWsVPANiQ/3NFRIdUbauyQ== X-Received: by 2002:a17:906:80da:b0:a55:b021:c0b1 with SMTP id a26-20020a17090680da00b00a55b021c0b1mr6742377ejx.9.1714481249645; Tue, 30 Apr 2024 05:47:29 -0700 (PDT) From: Fouad Hilly To: Xen-devel Cc: Fouad Hilly , Anthony PERARD , Juergen Gross , Andrew Cooper Subject: [PATCH v3 5/5] Add --force option to xen-ucode to override microcode version check Date: Tue, 30 Apr 2024 13:47:09 +0100 Message-ID: <20240430124709.865183-6-fouad.hilly@cloud.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240430124709.865183-1-fouad.hilly@cloud.com> References: <20240430124709.865183-1-fouad.hilly@cloud.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @cloud.com) X-ZM-MESSAGEID: 1714481276902100001 Content-Type: text/plain; charset="utf-8" Introduce --force option to xen-ucode to force skipping microcode version check, which allows the user to update x86 microcode even if both versions are the same. xc_microcode_update() refactored to accept flags and utilize xenpf_microcod= e_update2 Signed-off-by: Fouad Hilly Suggested-by: Andrew Cooper --- [v3] 1- Message description updated. 2- xc_microcode_update() uses xenpf_microcode_update2 to pass flags. [v2] 1- Changed data type from uint32_t to unsigned int. 2- Corrected line length. 3- Removed XENPF_UCODE_FLAG_FORCE_NOT_SET. 4- Corrected indentations. 5- Changed command line options to have the file name as first argument whe= n applicable. 6- --force option doesn't require an argument anymore. 7- Used optint to access filename in argv. tools/include/xenctrl.h | 3 ++- tools/libs/ctrl/xc_misc.c | 12 +++++++----- tools/misc/xen-ucode.c | 16 ++++++++++++---- 3 files changed, 21 insertions(+), 10 deletions(-) diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h index 499685594427..7fb409bc6dc4 100644 --- a/tools/include/xenctrl.h +++ b/tools/include/xenctrl.h @@ -1171,7 +1171,8 @@ typedef uint32_t xc_node_to_node_dist_t; int xc_physinfo(xc_interface *xch, xc_physinfo_t *info); int xc_cputopoinfo(xc_interface *xch, unsigned *max_cpus, xc_cputopo_t *cputopo); -int xc_microcode_update(xc_interface *xch, const void *buf, size_t len); +int xc_microcode_update(xc_interface *xch, const void *buf, + size_t len, unsigned int flags); int xc_get_cpu_version(xc_interface *xch, struct xenpf_pcpu_version *cpu_v= er); int xc_get_ucode_revision(xc_interface *xch, struct xenpf_ucode_revision *ucode_rev); diff --git a/tools/libs/ctrl/xc_misc.c b/tools/libs/ctrl/xc_misc.c index 50282fd60dcc..6a60216bda03 100644 --- a/tools/libs/ctrl/xc_misc.c +++ b/tools/libs/ctrl/xc_misc.c @@ -203,11 +203,12 @@ int xc_physinfo(xc_interface *xch, return 0; } =20 -int xc_microcode_update(xc_interface *xch, const void *buf, size_t len) +int xc_microcode_update(xc_interface *xch, const void *buf, + size_t len, unsigned int flags) { int ret; struct xen_platform_op platform_op =3D {}; - DECLARE_HYPERCALL_BUFFER(struct xenpf_microcode_update, uc); + DECLARE_HYPERCALL_BUFFER(struct xenpf_microcode_update2, uc); =20 uc =3D xc_hypercall_buffer_alloc(xch, uc, len); if ( uc =3D=3D NULL ) @@ -215,9 +216,10 @@ int xc_microcode_update(xc_interface *xch, const void = *buf, size_t len) =20 memcpy(uc, buf, len); =20 - platform_op.cmd =3D XENPF_microcode_update; - platform_op.u.microcode.length =3D len; - set_xen_guest_handle(platform_op.u.microcode.data, uc); + platform_op.cmd =3D XENPF_microcode_update2; + platform_op.u.microcode2.length =3D len; + platform_op.u.microcode2.flags =3D flags; + set_xen_guest_handle(platform_op.u.microcode2.data, uc); =20 ret =3D do_platform_op(xch, &platform_op); =20 diff --git a/tools/misc/xen-ucode.c b/tools/misc/xen-ucode.c index d95f967f021b..b3c9a2bfe5c8 100644 --- a/tools/misc/xen-ucode.c +++ b/tools/misc/xen-ucode.c @@ -13,6 +13,8 @@ #include #include =20 +#include + static xc_interface *xch; =20 static const char intel_id[] =3D "GenuineIntel"; @@ -21,10 +23,11 @@ static const char amd_id[] =3D "AuthenticAMD"; static void usage(const char *name) { printf("%s: Xen microcode updating tool\n" - "Usage: %s [ | Options]\n" + "Usage: %s [microcode file] [options]\n" "options:\n" " -h, --help display this help and exit\n" - " -s, --show-cpu-info show CPU information and exit\n", + " -s, --show-cpu-info show CPU information and exit\n" + " -f, --force force to skip micorocde version check\= n", name, name); } =20 @@ -89,10 +92,12 @@ int main(int argc, char *argv[]) size_t len; struct stat st; int opt; + uint32_t ucode_flag =3D 0; =20 static const struct option options[] =3D { {"help", no_argument, NULL, 'h'}, {"show-cpu-info", no_argument, NULL, 's'}, + {"force", no_argument, NULL, 'f'}, {NULL, no_argument, NULL, 0} }; =20 @@ -104,7 +109,7 @@ int main(int argc, char *argv[]) exit(1); } =20 - while ( (opt =3D getopt_long(argc, argv, "hs", options, NULL)) !=3D -1= ) + while ( (opt =3D getopt_long(argc, argv, "hsf", options, NULL)) !=3D -= 1 ) { switch (opt) { @@ -114,6 +119,9 @@ int main(int argc, char *argv[]) case 's': show_curr_cpu(stdout); exit(EXIT_SUCCESS); + case 'f': + ucode_flag =3D XENPF_UCODE_FLAG_FORCE_SET; + break; default: goto ext_err; } @@ -146,7 +154,7 @@ int main(int argc, char *argv[]) exit(1); } =20 - ret =3D xc_microcode_update(xch, buf, len); + ret =3D xc_microcode_update(xch, buf, len, ucode_flag); if ( ret ) { fprintf(stderr, "Failed to update microcode. (err: %s)\n", --=20 2.42.0