]> git.proxmox.com Git - mirror_qemu.git/blobdiff - hw/i386/pc.c
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
[mirror_qemu.git] / hw / i386 / pc.c
index 5d61557a2438e15988fdc31c70a8d3346e273252..1cdaff5f4d345dbc156b49134e28dbb51a359444 100644 (file)
@@ -76,6 +76,7 @@
 #include "hw/usb.h"
 #include "hw/i386/intel_iommu.h"
 #include "hw/net/ne2000-isa.h"
+#include "standard-headers/asm-x86/bootparam.h"
 
 /* debug PC/ISA interrupts */
 //#define DEBUG_IRQ
@@ -135,6 +136,7 @@ GlobalProperty pc_compat_3_1[] = {
     { "Icelake-Client" "-" TYPE_X86_CPU,      "mpx", "on" },
     { "Icelake-Server" "-" TYPE_X86_CPU,      "mpx", "on" },
     { "Cascadelake-Server" "-" TYPE_X86_CPU, "stepping", "5" },
+    { TYPE_X86_CPU, "x-intel-pt-auto-level", "off" },
 };
 const size_t pc_compat_3_1_len = G_N_ELEMENTS(pc_compat_3_1);
 
@@ -1059,13 +1061,6 @@ static long get_file_size(FILE *f)
     return size;
 }
 
-/* setup_data types */
-#define SETUP_NONE     0
-#define SETUP_E820_EXT 1
-#define SETUP_DTB      2
-#define SETUP_PCI      3
-#define SETUP_EFI      4
-
 struct setup_data {
     uint64_t next;
     uint32_t type;
@@ -1215,12 +1210,24 @@ static void load_linux(PCMachineState *pcms,
     if (ldl_p(header+0x202) == 0x53726448) {
         protocol = lduw_p(header+0x206);
     } else {
+        /*
+         * This could be a multiboot kernel. If it is, let's stop treating it
+         * like a Linux kernel.
+         * Note: some multiboot images could be in the ELF format (the same of
+         * PVH), so we try multiboot first since we check the multiboot magic
+         * header before to load it.
+         */
+        if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
+                           kernel_cmdline, kernel_size, header)) {
+            return;
+        }
         /*
          * Check if the file is an uncompressed kernel file (ELF) and load it,
          * saving the PVH entry point used by the x86/HVM direct boot ABI.
          * If load_elfboot() is successful, populate the fw_cfg info.
          */
-        if (load_elfboot(kernel_filename, kernel_size,
+        if (pcmc->pvh_enabled &&
+            load_elfboot(kernel_filename, kernel_size,
                          header, pvh_start_addr, fw_cfg)) {
             fclose(f);
 
@@ -1261,12 +1268,10 @@ static void load_linux(PCMachineState *pcms,
                                  initrd_size);
             }
 
-            return;
-        }
-        /* This looks like a multiboot kernel. If it is, let's stop
-           treating it like a Linux kernel. */
-        if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
-                           kernel_cmdline, kernel_size, header)) {
+            option_rom[nb_option_roms].bootindex = 0;
+            option_rom[nb_option_roms].name = "pvh.bin";
+            nb_option_roms++;
+
             return;
         }
         protocol = 0;
@@ -1300,7 +1305,26 @@ static void load_linux(PCMachineState *pcms,
 #endif
 
     /* highest address for loading the initrd */
-    if (protocol >= 0x203) {
+    if (protocol >= 0x20c &&
+        lduw_p(header+0x236) & XLF_CAN_BE_LOADED_ABOVE_4G) {
+        /*
+         * Linux has supported initrd up to 4 GB for a very long time (2007,
+         * long before XLF_CAN_BE_LOADED_ABOVE_4G which was added in 2013),
+         * though it only sets initrd_max to 2 GB to "work around bootloader
+         * bugs". Luckily, QEMU firmware(which does something like bootloader)
+         * has supported this.
+         *
+         * It's believed that if XLF_CAN_BE_LOADED_ABOVE_4G is set, initrd can
+         * be loaded into any address.
+         *
+         * In addition, initrd_max is uint32_t simply because QEMU doesn't
+         * support the 64-bit boot protocol (specifically the ext_ramdisk_image
+         * field).
+         *
+         * Therefore here just limit initrd_max to UINT32_MAX simply as well.
+         */
+        initrd_max = UINT32_MAX;
+    } else if (protocol >= 0x203) {
         initrd_max = ldl_p(header+0x22c);
     } else {
         initrd_max = 0x37ffffff;
@@ -1670,33 +1694,6 @@ void pc_pci_as_mapping_init(Object *owner, MemoryRegion *system_memory,
                                         pci_address_space, -1);
 }
 
-void pc_acpi_init(const char *default_dsdt)
-{
-    char *filename;
-
-    if (acpi_tables != NULL) {
-        /* manually set via -acpitable, leave it alone */
-        return;
-    }
-
-    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, default_dsdt);
-    if (filename == NULL) {
-        warn_report("failed to find %s", default_dsdt);
-    } else {
-        QemuOpts *opts = qemu_opts_create(qemu_find_opts("acpi"), NULL, 0,
-                                          &error_abort);
-        Error *err = NULL;
-
-        qemu_opt_set(opts, "file", filename, &error_abort);
-
-        acpi_table_add_builtin(opts, &err);
-        if (err) {
-            warn_reportf_err(err, "failed to load %s: ", filename);
-        }
-        g_free(filename);
-    }
-}
-
 void xen_load_linux(PCMachineState *pcms)
 {
     int i;
@@ -1712,6 +1709,7 @@ void xen_load_linux(PCMachineState *pcms)
     for (i = 0; i < nb_option_roms; i++) {
         assert(!strcmp(option_rom[i].name, "linuxboot.bin") ||
                !strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
+               !strcmp(option_rom[i].name, "pvh.bin") ||
                !strcmp(option_rom[i].name, "multiboot.bin"));
         rom_add_option(option_rom[i].name, option_rom[i].bootindex);
     }
@@ -1811,7 +1809,7 @@ void pc_memory_init(PCMachineState *pcms,
     }
 
     /* Initialize PC system firmware */
-    pc_system_firmware_init(rom_memory, !pcmc->pci_enabled);
+    pc_system_firmware_init(pcms, rom_memory);
 
     option_rom_mr = g_malloc(sizeof(*option_rom_mr));
     memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE,
@@ -2077,6 +2075,7 @@ static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
 {
     const PCMachineState *pcms = PC_MACHINE(hotplug_dev);
     const PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
+    const MachineState *ms = MACHINE(hotplug_dev);
     const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
     const uint64_t legacy_align = TARGET_PAGE_SIZE;
 
@@ -2091,7 +2090,7 @@ static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
         return;
     }
 
-    if (is_nvdimm && !pcms->acpi_nvdimm_state.is_enabled) {
+    if (is_nvdimm && !ms->nvdimms_state->is_enabled) {
         error_setg(errp, "nvdimm is not enabled: missing 'nvdimm' in '-M'");
         return;
     }
@@ -2103,9 +2102,9 @@ static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
 static void pc_memory_plug(HotplugHandler *hotplug_dev,
                            DeviceState *dev, Error **errp)
 {
-    HotplugHandlerClass *hhc;
     Error *local_err = NULL;
     PCMachineState *pcms = PC_MACHINE(hotplug_dev);
+    MachineState *ms = MACHINE(hotplug_dev);
     bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
 
     pc_dimm_plug(PC_DIMM(dev), MACHINE(pcms), &local_err);
@@ -2114,11 +2113,10 @@ static void pc_memory_plug(HotplugHandler *hotplug_dev,
     }
 
     if (is_nvdimm) {
-        nvdimm_plug(&pcms->acpi_nvdimm_state);
+        nvdimm_plug(ms->nvdimms_state);
     }
 
-    hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
-    hhc->plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &error_abort);
+    hotplug_handler_plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &error_abort);
 out:
     error_propagate(errp, local_err);
 }
@@ -2126,7 +2124,6 @@ out:
 static void pc_memory_unplug_request(HotplugHandler *hotplug_dev,
                                      DeviceState *dev, Error **errp)
 {
-    HotplugHandlerClass *hhc;
     Error *local_err = NULL;
     PCMachineState *pcms = PC_MACHINE(hotplug_dev);
 
@@ -2147,9 +2144,8 @@ static void pc_memory_unplug_request(HotplugHandler *hotplug_dev,
         goto out;
     }
 
-    hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
-    hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
-
+    hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev,
+                                   &local_err);
 out:
     error_propagate(errp, local_err);
 }
@@ -2158,19 +2154,15 @@ static void pc_memory_unplug(HotplugHandler *hotplug_dev,
                              DeviceState *dev, Error **errp)
 {
     PCMachineState *pcms = PC_MACHINE(hotplug_dev);
-    HotplugHandlerClass *hhc;
     Error *local_err = NULL;
 
-    hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
-    hhc->unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
-
+    hotplug_handler_unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
     if (local_err) {
         goto out;
     }
 
     pc_dimm_unplug(PC_DIMM(dev), MACHINE(pcms));
-    object_unparent(OBJECT(dev));
-
+    object_property_set_bool(OBJECT(dev), false, "realized", NULL);
  out:
     error_propagate(errp, local_err);
 }
@@ -2205,14 +2197,12 @@ static void pc_cpu_plug(HotplugHandler *hotplug_dev,
                         DeviceState *dev, Error **errp)
 {
     CPUArchId *found_cpu;
-    HotplugHandlerClass *hhc;
     Error *local_err = NULL;
     X86CPU *cpu = X86_CPU(dev);
     PCMachineState *pcms = PC_MACHINE(hotplug_dev);
 
     if (pcms->acpi_dev) {
-        hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
-        hhc->plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
+        hotplug_handler_plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
         if (local_err) {
             goto out;
         }
@@ -2236,7 +2226,6 @@ static void pc_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
                                      DeviceState *dev, Error **errp)
 {
     int idx = -1;
-    HotplugHandlerClass *hhc;
     Error *local_err = NULL;
     X86CPU *cpu = X86_CPU(dev);
     PCMachineState *pcms = PC_MACHINE(hotplug_dev);
@@ -2253,9 +2242,8 @@ static void pc_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
         goto out;
     }
 
-    hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
-    hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
-
+    hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev,
+                                   &local_err);
     if (local_err) {
         goto out;
     }
@@ -2269,21 +2257,18 @@ static void pc_cpu_unplug_cb(HotplugHandler *hotplug_dev,
                              DeviceState *dev, Error **errp)
 {
     CPUArchId *found_cpu;
-    HotplugHandlerClass *hhc;
     Error *local_err = NULL;
     X86CPU *cpu = X86_CPU(dev);
     PCMachineState *pcms = PC_MACHINE(hotplug_dev);
 
-    hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
-    hhc->unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
-
+    hotplug_handler_unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
     if (local_err) {
         goto out;
     }
 
     found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL);
     found_cpu->cpu = NULL;
-    object_unparent(OBJECT(dev));
+    object_property_set_bool(OBJECT(dev), false, "realized", NULL);
 
     /* decrement the number of CPUs */
     pcms->boot_cpus--;
@@ -2569,47 +2554,6 @@ static void pc_machine_set_smm(Object *obj, Visitor *v, const char *name,
     visit_type_OnOffAuto(v, name, &pcms->smm, errp);
 }
 
-static bool pc_machine_get_nvdimm(Object *obj, Error **errp)
-{
-    PCMachineState *pcms = PC_MACHINE(obj);
-
-    return pcms->acpi_nvdimm_state.is_enabled;
-}
-
-static void pc_machine_set_nvdimm(Object *obj, bool value, Error **errp)
-{
-    PCMachineState *pcms = PC_MACHINE(obj);
-
-    pcms->acpi_nvdimm_state.is_enabled = value;
-}
-
-static char *pc_machine_get_nvdimm_persistence(Object *obj, Error **errp)
-{
-    PCMachineState *pcms = PC_MACHINE(obj);
-
-    return g_strdup(pcms->acpi_nvdimm_state.persistence_string);
-}
-
-static void pc_machine_set_nvdimm_persistence(Object *obj, const char *value,
-                                               Error **errp)
-{
-    PCMachineState *pcms = PC_MACHINE(obj);
-    AcpiNVDIMMState *nvdimm_state = &pcms->acpi_nvdimm_state;
-
-    if (strcmp(value, "cpu") == 0)
-        nvdimm_state->persistence = 3;
-    else if (strcmp(value, "mem-ctrl") == 0)
-        nvdimm_state->persistence = 2;
-    else {
-        error_setg(errp, "-machine nvdimm-persistence=%s: unsupported option",
-                   value);
-        return;
-    }
-
-    g_free(nvdimm_state->persistence_string);
-    nvdimm_state->persistence_string = g_strdup(value);
-}
-
 static bool pc_machine_get_smbus(Object *obj, Error **errp)
 {
     PCMachineState *pcms = PC_MACHINE(obj);
@@ -2659,13 +2603,13 @@ static void pc_machine_initfn(Object *obj)
     pcms->max_ram_below_4g = 0; /* use default */
     pcms->smm = ON_OFF_AUTO_AUTO;
     pcms->vmport = ON_OFF_AUTO_AUTO;
-    /* nvdimm is disabled on default. */
-    pcms->acpi_nvdimm_state.is_enabled = false;
     /* acpi build is enabled by default if machine supports it */
     pcms->acpi_build_enabled = PC_MACHINE_GET_CLASS(pcms)->has_acpi_build;
     pcms->smbus_enabled = true;
     pcms->sata_enabled = true;
     pcms->pit_enabled = true;
+
+    pc_system_flash_create(pcms);
 }
 
 static void pc_machine_reset(void)
@@ -2778,6 +2722,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
     pcmc->acpi_data_size = 0x20000 + 0x8000;
     pcmc->save_tsc_khz = true;
     pcmc->linuxboot_dma_enabled = true;
+    pcmc->pvh_enabled = true;
     assert(!mc->get_hotplug_handler);
     mc->get_hotplug_handler = pc_get_hotplug_handler;
     mc->cpu_index_to_instance_props = pc_cpu_index_to_props;
@@ -2796,6 +2741,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
     hc->unplug = pc_machine_device_unplug_cb;
     nc->nmi_monitor_handler = x86_nmi;
     mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
+    mc->nvdimm_supported = true;
 
     object_class_property_add(oc, PC_MACHINE_DEVMEM_REGION_SIZE, "int",
         pc_machine_get_device_memory_region_size, NULL,
@@ -2820,13 +2766,6 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
     object_class_property_set_description(oc, PC_MACHINE_VMPORT,
         "Enable vmport (pc & q35)", &error_abort);
 
-    object_class_property_add_bool(oc, PC_MACHINE_NVDIMM,
-        pc_machine_get_nvdimm, pc_machine_set_nvdimm, &error_abort);
-
-    object_class_property_add_str(oc, PC_MACHINE_NVDIMM_PERSIST,
-        pc_machine_get_nvdimm_persistence,
-        pc_machine_set_nvdimm_persistence, &error_abort);
-
     object_class_property_add_bool(oc, PC_MACHINE_SMBUS,
         pc_machine_get_smbus, pc_machine_set_smbus, &error_abort);