From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFC00C432C1 for ; Tue, 24 Sep 2019 12:45:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C2314214DA for ; Tue, 24 Sep 2019 12:45:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439119AbfIXMp2 (ORCPT ); Tue, 24 Sep 2019 08:45:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40122 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729741AbfIXMp1 (ORCPT ); Tue, 24 Sep 2019 08:45:27 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1051A10CC1F7; Tue, 24 Sep 2019 12:45:27 +0000 (UTC) Received: from dritchie.redhat.com (unknown [10.33.36.128]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3062E60852; Tue, 24 Sep 2019 12:45:11 +0000 (UTC) From: Sergio Lopez To: qemu-devel@nongnu.org Cc: mst@redhat.com, imammedo@redhat.com, marcel.apfelbaum@gmail.com, pbonzini@redhat.com, rth@twiddle.net, ehabkost@redhat.com, philmd@redhat.com, lersek@redhat.com, kraxel@redhat.com, mtosatti@redhat.com, kvm@vger.kernel.org, Sergio Lopez Subject: [PATCH v4 2/8] hw/i386: Factorize e820 related functions Date: Tue, 24 Sep 2019 14:44:27 +0200 Message-Id: <20190924124433.96810-3-slp@redhat.com> In-Reply-To: <20190924124433.96810-1-slp@redhat.com> References: <20190924124433.96810-1-slp@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.65]); Tue, 24 Sep 2019 12:45:27 +0000 (UTC) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Extract e820 related functions from pc.c, and put them in e820.c, so they can be shared with other components. Signed-off-by: Sergio Lopez --- hw/i386/Makefile.objs | 1 + hw/i386/e820.c | 99 +++++++++++++++++++++++++++++++++++++++++++ hw/i386/e820.h | 11 +++++ hw/i386/pc.c | 66 +---------------------------- include/hw/i386/pc.h | 11 ----- target/i386/kvm.c | 1 + 6 files changed, 114 insertions(+), 75 deletions(-) create mode 100644 hw/i386/e820.c create mode 100644 hw/i386/e820.h diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs index c5f20bbd72..149712db07 100644 --- a/hw/i386/Makefile.objs +++ b/hw/i386/Makefile.objs @@ -2,6 +2,7 @@ obj-$(CONFIG_KVM) += kvm/ obj-y += multiboot.o obj-y += pvh.o obj-y += pc.o +obj-y += e820.o obj-$(CONFIG_I440FX) += pc_piix.o obj-$(CONFIG_Q35) += pc_q35.o obj-y += fw_cfg.o pc_sysfw.o diff --git a/hw/i386/e820.c b/hw/i386/e820.c new file mode 100644 index 0000000000..d5c5c0d528 --- /dev/null +++ b/hw/i386/e820.c @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2003-2004 Fabrice Bellard + * Copyright (c) 2019 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "qemu/error-report.h" +#include "qemu/cutils.h" +#include "qemu/units.h" + +#include "hw/i386/e820.h" +#include "hw/i386/fw_cfg.h" + +#define E820_NR_ENTRIES 16 + +struct e820_entry { + uint64_t address; + uint64_t length; + uint32_t type; +} QEMU_PACKED __attribute((__aligned__(4))); + +struct e820_table { + uint32_t count; + struct e820_entry entry[E820_NR_ENTRIES]; +} QEMU_PACKED __attribute((__aligned__(4))); + +static struct e820_table e820_reserve; +static struct e820_entry *e820_table; +static unsigned e820_entries; + +int e820_add_entry(uint64_t address, uint64_t length, uint32_t type) +{ + int index = le32_to_cpu(e820_reserve.count); + struct e820_entry *entry; + + if (type != E820_RAM) { + /* old FW_CFG_E820_TABLE entry -- reservations only */ + if (index >= E820_NR_ENTRIES) { + return -EBUSY; + } + entry = &e820_reserve.entry[index++]; + + entry->address = cpu_to_le64(address); + entry->length = cpu_to_le64(length); + entry->type = cpu_to_le32(type); + + e820_reserve.count = cpu_to_le32(index); + } + + /* new "etc/e820" file -- include ram too */ + e820_table = g_renew(struct e820_entry, e820_table, e820_entries + 1); + e820_table[e820_entries].address = cpu_to_le64(address); + e820_table[e820_entries].length = cpu_to_le64(length); + e820_table[e820_entries].type = cpu_to_le32(type); + e820_entries++; + + return e820_entries; +} + +int e820_get_num_entries(void) +{ + return e820_entries; +} + +bool e820_get_entry(int idx, uint32_t type, uint64_t *address, uint64_t *length) +{ + if (idx < e820_entries && e820_table[idx].type == cpu_to_le32(type)) { + *address = le64_to_cpu(e820_table[idx].address); + *length = le64_to_cpu(e820_table[idx].length); + return true; + } + return false; +} + +void e820_create_fw_entry(FWCfgState *fw_cfg) +{ + fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, + &e820_reserve, sizeof(e820_reserve)); + fw_cfg_add_file(fw_cfg, "etc/e820", e820_table, + sizeof(struct e820_entry) * e820_entries); +} diff --git a/hw/i386/e820.h b/hw/i386/e820.h new file mode 100644 index 0000000000..569d1f0ab5 --- /dev/null +++ b/hw/i386/e820.h @@ -0,0 +1,11 @@ +/* e820 types */ +#define E820_RAM 1 +#define E820_RESERVED 2 +#define E820_ACPI 3 +#define E820_NVS 4 +#define E820_UNUSABLE 5 + +int e820_add_entry(uint64_t address, uint64_t length, uint32_t type); +int e820_get_num_entries(void); +bool e820_get_entry(int idx, uint32_t type, uint64_t *address, uint64_t *length); +void e820_create_fw_entry(FWCfgState *fw_cfg); diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 10e4ced0c6..3920aa7e85 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -30,6 +30,7 @@ #include "hw/i386/apic.h" #include "hw/i386/topology.h" #include "hw/i386/fw_cfg.h" +#include "hw/i386/e820.h" #include "sysemu/cpus.h" #include "hw/block/fdc.h" #include "hw/ide.h" @@ -99,22 +100,6 @@ #define DPRINTF(fmt, ...) #endif -#define E820_NR_ENTRIES 16 - -struct e820_entry { - uint64_t address; - uint64_t length; - uint32_t type; -} QEMU_PACKED __attribute((__aligned__(4))); - -struct e820_table { - uint32_t count; - struct e820_entry entry[E820_NR_ENTRIES]; -} QEMU_PACKED __attribute((__aligned__(4))); - -static struct e820_table e820_reserve; -static struct e820_entry *e820_table; -static unsigned e820_entries; struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX}; GlobalProperty pc_compat_4_1[] = {}; @@ -878,50 +863,6 @@ static void handle_a20_line_change(void *opaque, int irq, int level) x86_cpu_set_a20(cpu, level); } -int e820_add_entry(uint64_t address, uint64_t length, uint32_t type) -{ - int index = le32_to_cpu(e820_reserve.count); - struct e820_entry *entry; - - if (type != E820_RAM) { - /* old FW_CFG_E820_TABLE entry -- reservations only */ - if (index >= E820_NR_ENTRIES) { - return -EBUSY; - } - entry = &e820_reserve.entry[index++]; - - entry->address = cpu_to_le64(address); - entry->length = cpu_to_le64(length); - entry->type = cpu_to_le32(type); - - e820_reserve.count = cpu_to_le32(index); - } - - /* new "etc/e820" file -- include ram too */ - e820_table = g_renew(struct e820_entry, e820_table, e820_entries + 1); - e820_table[e820_entries].address = cpu_to_le64(address); - e820_table[e820_entries].length = cpu_to_le64(length); - e820_table[e820_entries].type = cpu_to_le32(type); - e820_entries++; - - return e820_entries; -} - -int e820_get_num_entries(void) -{ - return e820_entries; -} - -bool e820_get_entry(int idx, uint32_t type, uint64_t *address, uint64_t *length) -{ - if (idx < e820_entries && e820_table[idx].type == cpu_to_le32(type)) { - *address = le64_to_cpu(e820_table[idx].address); - *length = le64_to_cpu(e820_table[idx].length); - return true; - } - return false; -} - /* Calculates initial APIC ID for a specific CPU index * * Currently we need to be able to calculate the APIC ID from the CPU index @@ -1024,10 +965,7 @@ static FWCfgState *bochs_bios_init(AddressSpace *as, PCMachineState *pcms) acpi_tables, acpi_tables_len); fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override()); - fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, - &e820_reserve, sizeof(e820_reserve)); - fw_cfg_add_file(fw_cfg, "etc/e820", e820_table, - sizeof(struct e820_entry) * e820_entries); + e820_create_fw_entry(fw_cfg); fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, &hpet_cfg, sizeof(hpet_cfg)); /* allocate memory for the NUMA channel: one (64bit) word for the number diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 19a837889d..062feeb69e 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -291,17 +291,6 @@ void pc_system_firmware_init(PCMachineState *pcms, MemoryRegion *rom_memory); void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid, const CPUArchIdList *apic_ids, GArray *entry); -/* e820 types */ -#define E820_RAM 1 -#define E820_RESERVED 2 -#define E820_ACPI 3 -#define E820_NVS 4 -#define E820_UNUSABLE 5 - -int e820_add_entry(uint64_t, uint64_t, uint32_t); -int e820_get_num_entries(void); -bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); - extern GlobalProperty pc_compat_4_1[]; extern const size_t pc_compat_4_1_len; diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 8023c679ea..8ce56db7d4 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -41,6 +41,7 @@ #include "hw/i386/apic-msidef.h" #include "hw/i386/intel_iommu.h" #include "hw/i386/x86-iommu.h" +#include "hw/i386/e820.h" #include "hw/pci/pci.h" #include "hw/pci/msi.h" -- 2.21.0