From patchwork Wed May 3 09:20:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 13229948 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 27960C77B7F for ; Wed, 3 May 2023 09:21:18 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pu8fi-0004EK-Ci; Wed, 03 May 2023 05:21:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fa-00045v-RH for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:06 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fY-0005q1-4A for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683105663; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ILIkb92YfjNdVPvNemK23NPzdxpIvUqcxZkOvQcuD1w=; b=P7SereIWR/5mYA2vcIOxajtneF2EDO1ID2+ISQSl7I8QDIjKuUtTnhIJjWHTI7fMKMb0kV TnFIN/JHzc+NuXMKuEoLsjxMqIxHsqgLxCYNzxyV4Ay5Q28oA8LUNUWjCY7wthBUUyneZC zQ4ORRdiB5qH/3yKhCWzDrMz/+c4l3A= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-529-wJu0s15sPKShu4mxOn1CfQ-1; Wed, 03 May 2023 05:21:01 -0400 X-MC-Unique: wJu0s15sPKShu4mxOn1CfQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id C490A2808E73; Wed, 3 May 2023 09:21:00 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.37]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 54C822026D16; Wed, 3 May 2023 09:21:00 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 963B11804A40; Wed, 3 May 2023 11:20:58 +0200 (CEST) From: Gerd Hoffmann To: seabios@seabios.org Cc: qemu-devel@nongnu.org, Gerd Hoffmann Subject: [PATCH v2 1/6] better kvm detection Date: Wed, 3 May 2023 11:20:53 +0200 Message-Id: <20230503092058.486893-2-kraxel@redhat.com> In-Reply-To: <20230503092058.486893-1-kraxel@redhat.com> References: <20230503092058.486893-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org In case kvm emulates features of another hypervisor (for example hyperv) two VMM CPUID blocks will be present, one for the emulated hypervisor and one for kvm itself. This patch makes seabios loop over the VMM CPUID blocks to make sure it will properly detect kvm when multiple blocks are present. Signed-off-by: Gerd Hoffmann --- src/fw/paravirt.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c index fba4e52db684..c880cb10a1bc 100644 --- a/src/fw/paravirt.c +++ b/src/fw/paravirt.c @@ -56,20 +56,31 @@ inline int qemu_cfg_dma_enabled(void) static void kvm_detect(void) { + unsigned int i, kvmbase = 0, max = 0; unsigned int eax, ebx, ecx, edx; char signature[13]; - cpuid(KVM_CPUID_SIGNATURE, &eax, &ebx, &ecx, &edx); - memcpy(signature + 0, &ebx, 4); - memcpy(signature + 4, &ecx, 4); - memcpy(signature + 8, &edx, 4); - signature[12] = 0; + for (i = KVM_CPUID_SIGNATURE;; i += 0x100) { + eax = 0; + cpuid(i, &eax, &ebx, &ecx, &edx); + if (eax < i) + break; + memcpy(signature + 0, &ebx, 4); + memcpy(signature + 4, &ecx, 4); + memcpy(signature + 8, &edx, 4); + signature[12] = 0; + dprintf(1, "cpuid 0x%x: eax %x, signature '%s'\n", i, eax, signature); + if (strcmp(signature, "KVMKVMKVM") == 0) { + kvmbase = i; + max = eax; + } + } - if (strcmp(signature, "KVMKVMKVM") == 0) { + if (kvmbase) { dprintf(1, "Running on KVM\n"); PlatformRunningOn |= PF_KVM; - if (eax >= KVM_CPUID_SIGNATURE + 0x10) { - cpuid(KVM_CPUID_SIGNATURE + 0x10, &eax, &ebx, &ecx, &edx); + if (max >= kvmbase + 0x10) { + cpuid(kvmbase + 0x10, &eax, &ebx, &ecx, &edx); dprintf(1, "kvm: have invtsc, freq %u kHz\n", eax); tsctimer_setfreq(eax, "invtsc"); } From patchwork Wed May 3 09:20:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 13229951 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8487FC77B7F for ; Wed, 3 May 2023 09:21:40 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pu8fl-0004Ow-RG; Wed, 03 May 2023 05:21:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fc-0004A2-F7 for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:08 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fa-0005qW-Ih for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683105664; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TGIVkhF4pGFCL6uPOQB5Y3qyOQHlhPBTDjQdKEr0yfs=; b=PCMZgnUXTNJPhQ0LVCIkLawIiYcP9paYyoahk+LZgZaQyXWiz/kex6Qqh9UxIvWjhCMPDP D2ciRhJjnv8A0wvBu4H/PvGeqL/iqoyrP9R91Ml/GlrURHAn3GOu6p70Bt1B5+uvEEpxr/ exA5fEU/pkb1PPSDAuhna5iAOcCcqdI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-571-vDpTED1hPr6B2U9apRQG6w-1; Wed, 03 May 2023 05:21:03 -0400 X-MC-Unique: vDpTED1hPr6B2U9apRQG6w-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id CF7F518E0922; Wed, 3 May 2023 09:21:02 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.37]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 92C8B1121331; Wed, 3 May 2023 09:21:02 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 9A2301804A41; Wed, 3 May 2023 11:20:58 +0200 (CEST) From: Gerd Hoffmann To: seabios@seabios.org Cc: qemu-devel@nongnu.org, Gerd Hoffmann Subject: [PATCH v2 2/6] detect physical address space size Date: Wed, 3 May 2023 11:20:54 +0200 Message-Id: <20230503092058.486893-3-kraxel@redhat.com> In-Reply-To: <20230503092058.486893-1-kraxel@redhat.com> References: <20230503092058.486893-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Check for pae and long mode using cpuid. If present also read the physical address bits. Apply some qemu sanity checks (see below). Record results in PhysBits and LongMode variables. In case we are not sure what the address space size is leave the PhysBits variable unset. On qemu we have the problem that for historical reasons x86_64 processors advertise 40 physical address space bits by default, even in case the host supports less than that so actually using the whole address space will not work. Because of that the code applies some extra sanity checks in case we find 40 (or less) physical address space bits advertised. Only known-good values (which is 40 for amd processors and 36+39 for intel processors) will be accepted as valid. Recommendation is to use 'qemu -cpu ${name},host-phys-bits=on' to advertise valid physical address space bits to the guest. Some distro builds enable this by default, and most likely the qemu default will change in near future too. Signed-off-by: Gerd Hoffmann --- src/fw/paravirt.h | 2 ++ src/fw/paravirt.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+) diff --git a/src/fw/paravirt.h b/src/fw/paravirt.h index 4e2e993ba9d3..7ca3fdcc06d4 100644 --- a/src/fw/paravirt.h +++ b/src/fw/paravirt.h @@ -31,6 +31,8 @@ typedef struct QemuCfgDmaAccess { extern u32 RamSize; extern u64 RamSizeOver4G; extern int PlatformRunningOn; +extern u8 PhysBits; +extern int LongMode; static inline int runningOnQEMU(void) { return CONFIG_QEMU || ( diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c index c880cb10a1bc..a84968661aee 100644 --- a/src/fw/paravirt.c +++ b/src/fw/paravirt.c @@ -32,6 +32,10 @@ u32 RamSize; // Amount of continuous ram >4Gig u64 RamSizeOver4G; +// physical address space bits +u8 PhysBits; +// 64bit processor +int LongMode; // Type of emulator platform. int PlatformRunningOn VARFSEG; // cfg enabled @@ -129,6 +133,58 @@ static void kvmclock_init(void) tsctimer_setfreq(MHz * 1000, "kvmclock"); } +static void physbits(int qemu_quirk) +{ + unsigned int max, eax, ebx, ecx, edx; + unsigned int physbits; + char signature[13]; + int pae = 0, valid = 0; + + cpuid(0, &eax, &ebx, &ecx, &edx); + memcpy(signature + 0, &ebx, 4); + memcpy(signature + 4, &edx, 4); + memcpy(signature + 8, &ecx, 4); + signature[12] = 0; + if (eax >= 1) { + cpuid(1, &eax, &ebx, &ecx, &edx); + pae = (edx & (1 << 6)); + } + + cpuid(0x80000000, &eax, &ebx, &ecx, &edx); + max = eax; + + if (max >= 0x80000001) { + cpuid(0x80000001, &eax, &ebx, &ecx, &edx); + LongMode = (edx & (1 << 29)); + } + + if (pae && LongMode && max >= 0x80000008) { + cpuid(0x80000008, &eax, &ebx, &ecx, &edx); + physbits = (u8)eax; + if (!qemu_quirk) { + valid = 1; + } else if (physbits >= 41) { + valid = 1; + } else if (strcmp(signature, "GenuineIntel") == 0) { + if ((physbits == 36) || (physbits == 39)) + valid = 1; + } else if (strcmp(signature, "AuthenticAMD") == 0) { + if (physbits == 40) + valid = 1; + } + } else { + physbits = pae ? 36 : 32; + valid = 1; + } + + dprintf(1, "%s: signature=\"%s\", pae=%s, lm=%s, phys-bits=%d, valid=%s\n", + __func__, signature, pae ? "yes" : "no", LongMode ? "yes" : "no", + physbits, valid ? "yes" : "no"); + + if (valid) + PhysBits = physbits; +} + static void qemu_detect(void) { if (!CONFIG_QEMU_HARDWARE) @@ -161,6 +217,7 @@ static void qemu_detect(void) dprintf(1, "Running on QEMU (unknown nb: %04x:%04x)\n", v, d); break; } + physbits(1); } static int qemu_early_e820(void); From patchwork Wed May 3 09:20:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 13229952 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 25D97C77B78 for ; Wed, 3 May 2023 09:21:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pu8fk-0004Jp-Ph; Wed, 03 May 2023 05:21:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fd-0004AM-1t for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:09 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fb-0005qw-FI for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683105666; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NOeM9sTX5cJ0WtlorM8P3Xt6FC6JgHOUpBwRQk7j40A=; b=LJDnNIciRJUV9IWFhiB6Q2QkOzzwHZ6ERleP4B/Bj70LJhw38JT22Grl51WcxDN9YzN4eN G6gp2Jl6lMK5gttDDNWXmQO5lDUfHMyS/TR1FiXFuMkHMsZMc1RZh1FLiT3Dn7B1QlMusM rYTLq2c7fiCisdhOXoa2o3JNzheE/NU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-554-wzllFH7YOaC3fZqMtyiDZQ-1; Wed, 03 May 2023 05:21:03 -0400 X-MC-Unique: wzllFH7YOaC3fZqMtyiDZQ-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 695E2A0F385; Wed, 3 May 2023 09:21:03 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.37]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 30899492B00; Wed, 3 May 2023 09:21:03 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 9DA981804A42; Wed, 3 May 2023 11:20:58 +0200 (CEST) From: Gerd Hoffmann To: seabios@seabios.org Cc: qemu-devel@nongnu.org, Gerd Hoffmann Subject: [PATCH v2 3/6] move 64bit pci window to end of address space Date: Wed, 3 May 2023 11:20:55 +0200 Message-Id: <20230503092058.486893-4-kraxel@redhat.com> In-Reply-To: <20230503092058.486893-1-kraxel@redhat.com> References: <20230503092058.486893-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass client-ip=170.10.133.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org When the size of the physical address space is known (PhysBits is not zero) move the 64bit pci io window to the end of the address space. Signed-off-by: Gerd Hoffmann --- src/fw/pciinit.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c index badf13d3233b..ad6def93633b 100644 --- a/src/fw/pciinit.c +++ b/src/fw/pciinit.c @@ -1128,6 +1128,14 @@ static void pci_bios_map_devices(struct pci_bus *busses) r64_mem.base = le64_to_cpu(romfile_loadint("etc/reserved-memory-end", 0)); if (r64_mem.base < 0x100000000LL + RamSizeOver4G) r64_mem.base = 0x100000000LL + RamSizeOver4G; + if (PhysBits) { + u64 top = 1LL << PhysBits; + u64 size = (ALIGN(sum_mem, (1LL<<30)) + + ALIGN(sum_pref, (1LL<<30))); + if (r64_mem.base < top - size) { + r64_mem.base = top - size; + } + } r64_mem.base = ALIGN(r64_mem.base, align_mem); r64_mem.base = ALIGN(r64_mem.base, (1LL<<30)); // 1G hugepage r64_pref.base = r64_mem.base + sum_mem; From patchwork Wed May 3 09:20:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 13229954 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0229CC77B7F for ; Wed, 3 May 2023 09:22:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pu8fm-0004S2-W4; Wed, 03 May 2023 05:21:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fc-0004AI-NM for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:09 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fb-0005qg-09 for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683105666; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IeZsUJkgJz2NyHShW5zrMFsTV0XPdjmtHI7De5HGmWA=; b=ENPNNcd08NIe/yVKtr+ak3oVbt8nduFhjPI2diOD1wIurMmHNVUUdB53T6afeEw1ffjIIn d1J81ZhvK9vJOFNcxDTLMgmu+lp08DXJrzMkj+DpVSPJHqf9VRIItBeW+5wjWE8MHom8rC NUZR25y0fhh7hmOfg5KqgZMxPxDqs+o= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-558-A_ap4-Z6O-GGOfjBja70sA-1; Wed, 03 May 2023 05:21:04 -0400 X-MC-Unique: A_ap4-Z6O-GGOfjBja70sA-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A0672800047; Wed, 3 May 2023 09:21:04 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.37]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 67DB4492B10; Wed, 3 May 2023 09:21:04 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id A14391804A43; Wed, 3 May 2023 11:20:58 +0200 (CEST) From: Gerd Hoffmann To: seabios@seabios.org Cc: qemu-devel@nongnu.org, Gerd Hoffmann Subject: [PATCH v2 4/6] be less conservative with the 64bit pci io window Date: Wed, 3 May 2023 11:20:56 +0200 Message-Id: <20230503092058.486893-5-kraxel@redhat.com> In-Reply-To: <20230503092058.486893-1-kraxel@redhat.com> References: <20230503092058.486893-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass client-ip=170.10.133.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Current seabios code will only enable and use the 64bit pci io window in case it runs out of space in the 32bit pci mmio window below 4G. This patch will also enable the 64bit pci io window when (a) RAM above 4G is present, and (b) the physical address space size is known, and (c) seabios is running on a 64bit capable processor. This operates with the assumption that guests which are ok with memory above 4G most likely can handle mmio above 4G too. In case the 64bit pci io window is enabled also assign more memory to prefetchable pci bridge windows and the complete 64bit pci io window. The total mmio window size is 1/8 of the physical address space. Minimum bridge windows size is 1/256 of the total mmio window size. Signed-off-by: Gerd Hoffmann --- src/fw/pciinit.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c index ad6def93633b..b715bf2d772e 100644 --- a/src/fw/pciinit.c +++ b/src/fw/pciinit.c @@ -51,6 +51,7 @@ u64 pcimem_end = BUILD_PCIMEM_END; u64 pcimem64_start = BUILD_PCIMEM64_START; u64 pcimem64_end = BUILD_PCIMEM64_END; u64 pci_io_low_end = 0xa000; +u32 pci_use_64bit = 0; struct pci_region_entry { struct pci_device *dev; @@ -920,6 +921,8 @@ static int pci_bios_check_devices(struct pci_bus *busses) for (type = 0; type < PCI_REGION_TYPE_COUNT; type++) { u64 align = (type == PCI_REGION_TYPE_IO) ? PCI_BRIDGE_IO_MIN : PCI_BRIDGE_MEM_MIN; + if (pci_use_64bit && (type == PCI_REGION_TYPE_PREFMEM)) + align = (u64)1 << (PhysBits - 11); if (!pci_bridge_has_region(s->bus_dev, type)) continue; u64 size = 0; @@ -1108,7 +1111,7 @@ static void pci_bios_map_devices(struct pci_bus *busses) panic("PCI: out of I/O address space\n"); dprintf(1, "PCI: 32: %016llx - %016llx\n", pcimem_start, pcimem_end); - if (pci_bios_init_root_regions_mem(busses)) { + if (pci_use_64bit || pci_bios_init_root_regions_mem(busses)) { struct pci_region r64_mem, r64_pref; r64_mem.list.first = NULL; r64_pref.list.first = NULL; @@ -1132,6 +1135,8 @@ static void pci_bios_map_devices(struct pci_bus *busses) u64 top = 1LL << PhysBits; u64 size = (ALIGN(sum_mem, (1LL<<30)) + ALIGN(sum_pref, (1LL<<30))); + if (pci_use_64bit) + size = ALIGN(size, (1LL<<(PhysBits-3))); if (r64_mem.base < top - size) { r64_mem.base = top - size; } @@ -1174,6 +1179,9 @@ pci_setup(void) dprintf(3, "pci setup\n"); + if (PhysBits >= 36 && LongMode && RamSizeOver4G) + pci_use_64bit = 1; + dprintf(1, "=== PCI bus & bridge init ===\n"); if (pci_probe_host() != 0) { return; From patchwork Wed May 3 09:20:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 13229950 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 94AC6C77B78 for ; Wed, 3 May 2023 09:21:28 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pu8fm-0004Pf-9K; Wed, 03 May 2023 05:21:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fd-0004AN-4l for qemu-devel@nongnu.org; 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Wed, 03 May 2023 05:21:05 -0400 X-MC-Unique: iu333yp5MeuTH6ZQ-KUlHw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5B12B18E0925; Wed, 3 May 2023 09:21:05 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.37]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1BD902166B26; Wed, 3 May 2023 09:21:05 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id A4E191804A44; Wed, 3 May 2023 11:20:58 +0200 (CEST) From: Gerd Hoffmann To: seabios@seabios.org Cc: qemu-devel@nongnu.org, Gerd Hoffmann Subject: [PATCH v2 5/6] qemu: log reservations in fw_cfg e820 table Date: Wed, 3 May 2023 11:20:57 +0200 Message-Id: <20230503092058.486893-6-kraxel@redhat.com> In-Reply-To: <20230503092058.486893-1-kraxel@redhat.com> References: <20230503092058.486893-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.133.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org With loglevel 1 (same we use for RAM entries), so it is included in the firmware log by default. Signed-off-by: Gerd Hoffmann --- src/fw/paravirt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c index a84968661aee..2c9ed4c3f4d6 100644 --- a/src/fw/paravirt.c +++ b/src/fw/paravirt.c @@ -764,7 +764,7 @@ static int qemu_early_e820(void) switch (table.type) { case E820_RESERVED: e820_add(table.address, table.length, table.type); - dprintf(3, "qemu/e820: addr 0x%016llx len 0x%016llx [reserved]\n", + dprintf(1, "qemu/e820: addr 0x%016llx len 0x%016llx [reserved]\n", table.address, table.length); break; case E820_RAM: From patchwork Wed May 3 09:20:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 13229953 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4FD6CC77B78 for ; Wed, 3 May 2023 09:22:03 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pu8fo-0004Su-7T; Wed, 03 May 2023 05:21:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fe-0004DD-9J for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:11 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pu8fc-0005rH-Qw for qemu-devel@nongnu.org; Wed, 03 May 2023 05:21:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683105668; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=j/Is3id2zhFK34pw5JbasCwx/uHRe6bCrASKUUw0QRM=; b=e1VeE8ahJghFlh/m9wZfRTp4fDSiw8RMTy1wc5DHn6xDaV/WbvfqM1dOHO32iYoa8w5ZZ6 7OyVCwnw6brPm1fXN93Yl6x+T0X0oYLICXBBY5y9CCyUzfH3+e00cUHAI73kkqngio5VgX q+7mKmEO4pe9eF8fjIZa+r+uE3yEBaQ= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-324-QGNbFA2uP6GvZoWIdtdfrA-1; Wed, 03 May 2023 05:21:07 -0400 X-MC-Unique: QGNbFA2uP6GvZoWIdtdfrA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 8D901855304; Wed, 3 May 2023 09:21:06 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.37]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 540B22166B26; Wed, 3 May 2023 09:21:06 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id A88481804A46; Wed, 3 May 2023 11:20:58 +0200 (CEST) From: Gerd Hoffmann To: seabios@seabios.org Cc: qemu-devel@nongnu.org, Gerd Hoffmann Subject: [PATCH v2 6/6] check for e820 conflict Date: Wed, 3 May 2023 11:20:58 +0200 Message-Id: <20230503092058.486893-7-kraxel@redhat.com> In-Reply-To: <20230503092058.486893-1-kraxel@redhat.com> References: <20230503092058.486893-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.133.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add support to check for overlaps with e820 entries. In case the 64bit pci io window has conflicts move it down. The only known case where this happens is AMD processors with 1TB address space which has some space just below 1TB reserved for HT. Signed-off-by: Gerd Hoffmann --- src/e820map.h | 1 + src/e820map.c | 15 +++++++++++++++ src/fw/pciinit.c | 2 ++ 3 files changed, 18 insertions(+) diff --git a/src/e820map.h b/src/e820map.h index de8b523003c5..07ce16ec213f 100644 --- a/src/e820map.h +++ b/src/e820map.h @@ -18,6 +18,7 @@ struct e820entry { void e820_add(u64 start, u64 size, u32 type); void e820_remove(u64 start, u64 size); void e820_prepboot(void); +int e820_is_used(u64 start, u64 size); // e820 map storage extern struct e820entry e820_list[]; diff --git a/src/e820map.c b/src/e820map.c index 39445cf6399d..c761e5e98a75 100644 --- a/src/e820map.c +++ b/src/e820map.c @@ -150,3 +150,18 @@ e820_prepboot(void) { dump_map(); } + +int +e820_is_used(u64 start, u64 size) +{ + int i; + for (i=0; istart) + continue; + if (start >= e->start + e->size) + continue; + return 1; + } + return 0; +} diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c index b715bf2d772e..190e79216f86 100644 --- a/src/fw/pciinit.c +++ b/src/fw/pciinit.c @@ -1140,6 +1140,8 @@ static void pci_bios_map_devices(struct pci_bus *busses) if (r64_mem.base < top - size) { r64_mem.base = top - size; } + if (e820_is_used(r64_mem.base, size)) + r64_mem.base -= size; } r64_mem.base = ALIGN(r64_mem.base, align_mem); r64_mem.base = ALIGN(r64_mem.base, (1LL<<30)); // 1G hugepage