From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id 058F19AAF4 for ; Mon, 22 May 2023 12:26:11 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id D99782FBCF for ; Mon, 22 May 2023 12:25:40 +0200 (CEST) Received: from bastionodiso.odiso.net (bastionodiso.odiso.net [IPv6:2a0a:1580:2000::2d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for ; Mon, 22 May 2023 12:25:39 +0200 (CEST) Received: from kvmformation3.odiso.net (formationkvm3.odiso.net [10.3.94.12]) by bastionodiso.odiso.net (Postfix) with ESMTP id 121948B6B; Mon, 22 May 2023 12:25:30 +0200 (CEST) Received: by kvmformation3.odiso.net (Postfix, from userid 0) id 110B42E8311; Mon, 22 May 2023 12:25:30 +0200 (CEST) From: Alexandre Derumier To: pve-devel@lists.proxmox.com Date: Mon, 22 May 2023 12:25:25 +0200 Message-Id: <20230522102528.186955-7-aderumier@odiso.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230522102528.186955-1-aderumier@odiso.com> References: <20230522102528.186955-1-aderumier@odiso.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.015 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy HEADER_FROM_DIFFERENT_DOMAINS 0.25 From and EnvelopeFrom 2nd level mail domains are different KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment KAM_LAZY_DOMAIN_SECURITY 1 Sending domain does not have any anti-forgery methods SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_NONE 0.001 SPF: sender does not publish an SPF Record T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pve-devel] [PATCH v3 qemu-server 4/7] cpuconfig: add get_host_cpu_flags X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 May 2023 10:26:11 -0000 parse cpuinfo flags && msr and create an hash with all flags convert to qemu naming if needed Signed-off-by: Alexandre Derumier --- PVE/QemuServer/CPUConfig.pm | 70 +++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) diff --git a/PVE/QemuServer/CPUConfig.pm b/PVE/QemuServer/CPUConfig.pm index 64be1f4..45bf26f 100644 --- a/PVE/QemuServer/CPUConfig.pm +++ b/PVE/QemuServer/CPUConfig.pm @@ -13,6 +13,7 @@ use base qw(PVE::SectionConfig Exporter); our @EXPORT_OK = qw( print_cpu_device get_cpu_options +get_host_cpu_flags ); # under certain race-conditions, this module might be loaded before pve-cluster @@ -626,6 +627,75 @@ sub get_cpu_from_running_vm { return $1; } +sub get_host_cpu_flags { + my ($cpuinfo) = @_; + + my $res = {}; + + #some qemu flag have different name than cpuinfo + my $map = { + 'sse4_1' => 'sse4.1', + 'sse4_2' => 'sse4.2', + 'tsc_deadline_timer' => 'tsc-deadline', + 'pclmulqdq' => 'pclmuldq', + 'arch_capabilities' => 'arch-capabilities', + 'avx512_vnni' => 'avx512vnni', + 'avx512_bf16' => 'avx512-bf16', + 'avx512_vpopcntdq' => 'avx512-vpopcntdq', + 'avx512_vbmi2' => 'avx512vbmi2', + 'avx512_bitalg' => 'avx512bitalg', + 'avx512_fp16' => 'avx512-fp16', + 'sha_ni' => 'sha-ni', + 'cr8_legacy' => 'cr8legacy', + 'nrip_save' => 'nrip-save', + 'amx_bf16' => 'amx-bf16', + 'avx_vnni' => 'avx-vnni', + 'amx_int8' => 'amx-int8', + 'amx_tile' => 'amx-tile', + 'bus_lock_detect' => 'bus-lock-detect', + 'tsxldtrk' => 'tsx-ldtrk', + }; + + if ($cpuinfo->{vendor} eq 'AuthenticAMD') { + $map->{ssbd} = 'amd-ssbd'; + $map->{stibp} = 'amd-stibp'; + } + + my @flags = split ' ', $cpuinfo->{'flags'}; + foreach my $flag (@flags) { + $flag = $map->{$flag} if $map->{$flag}; + next if !$qemu_supported_flags->{$flag}; + $res->{$flag} = 1; + } + + #spec-ctrl msr + my $spectre_msr = $cpuinfo->{msr}->{'spec-ctrl'}; + $res->{'spec-ctrl'} = 1 if defined($spectre_msr) && $spectre_msr == 0; + + #arch-capabilities msr + my $capabilities = { + 'rdctl-no' => 0, + 'ibrs-all' => 1, + 'rsba' => 2, + 'skip-l1dfl-vmentry' => 3, + 'ssb-no' => 4, + 'mds-no' => 5, + 'pschange-mc-no' => 6, + 'tsx-ctrl' => 7, + 'taa-no' => 8, + 'fb-clear' => 17 + }; + + if ($cpuinfo->{msr}->{'arch-capabilities'}) { + foreach my $capabilitie (keys %$capabilities) { + my $value = $capabilities->{$capabilitie}; + $res->{$capabilitie} = 1 if $cpuinfo->{msr}->{'arch-capabilities'} >> $value & 1; + } + } + + return $res; +} + __PACKAGE__->register(); __PACKAGE__->init(); -- 2.30.2