diff options
Diffstat (limited to 'hw/i386')
-rw-r--r-- | hw/i386/Makefile.objs | 2 | ||||
-rw-r--r-- | hw/i386/xen/Makefile.objs | 1 | ||||
-rw-r--r-- | hw/i386/xen/xen_apic.c | 97 | ||||
-rw-r--r-- | hw/i386/xen/xen_platform.c | 450 | ||||
-rw-r--r-- | hw/i386/xen/xen_pvdevice.c | 135 | ||||
-rw-r--r-- | hw/i386/xen_domainbuild.c | 299 | ||||
-rw-r--r-- | hw/i386/xen_domainbuild.h | 13 | ||||
-rw-r--r-- | hw/i386/xen_machine_pv.c | 109 |
8 files changed, 684 insertions, 422 deletions
diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs index 3df1612651..f66c349508 100644 --- a/hw/i386/Makefile.objs +++ b/hw/i386/Makefile.objs @@ -2,7 +2,7 @@ obj-$(CONFIG_KVM) += kvm/ obj-y += multiboot.o smbios.o obj-y += pc.o pc_piix.o pc_q35.o obj-y += pc_sysfw.o -obj-$(CONFIG_XEN) += xen_domainbuild.o xen_machine_pv.o +obj-$(CONFIG_XEN) += ../xenpv/ xen/ obj-y += kvmvapic.o obj-y += acpi-build.o diff --git a/hw/i386/xen/Makefile.objs b/hw/i386/xen/Makefile.objs new file mode 100644 index 0000000000..801a68d326 --- /dev/null +++ b/hw/i386/xen/Makefile.objs @@ -0,0 +1 @@ +obj-y += xen_platform.o xen_apic.o xen_pvdevice.o diff --git a/hw/i386/xen/xen_apic.c b/hw/i386/xen/xen_apic.c new file mode 100644 index 0000000000..63bb7f77c6 --- /dev/null +++ b/hw/i386/xen/xen_apic.c @@ -0,0 +1,97 @@ +/* + * Xen basic APIC support + * + * Copyright (c) 2012 Citrix + * + * Authors: + * Wei Liu <wei.liu2@citrix.com> + * + * This work is licensed under the terms of the GNU GPL version 2 or + * later. See the COPYING file in the top-level directory. + */ +#include "hw/i386/apic_internal.h" +#include "hw/pci/msi.h" +#include "hw/xen/xen.h" + +static uint64_t xen_apic_mem_read(void *opaque, hwaddr addr, + unsigned size) +{ + return ~(uint64_t)0; +} + +static void xen_apic_mem_write(void *opaque, hwaddr addr, + uint64_t data, unsigned size) +{ + if (size != sizeof(uint32_t)) { + fprintf(stderr, "Xen: APIC write data size = %d, invalid\n", size); + return; + } + + xen_hvm_inject_msi(addr, data); +} + +static const MemoryRegionOps xen_apic_io_ops = { + .read = xen_apic_mem_read, + .write = xen_apic_mem_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void xen_apic_realize(DeviceState *dev, Error **errp) +{ + APICCommonState *s = APIC_COMMON(dev); + + memory_region_init_io(&s->io_memory, OBJECT(s), &xen_apic_io_ops, s, + "xen-apic-msi", APIC_SPACE_SIZE); + +#if defined(CONFIG_XEN_CTRL_INTERFACE_VERSION) \ + && CONFIG_XEN_CTRL_INTERFACE_VERSION >= 420 + msi_supported = true; +#endif +} + +static void xen_apic_set_base(APICCommonState *s, uint64_t val) +{ +} + +static void xen_apic_set_tpr(APICCommonState *s, uint8_t val) +{ +} + +static uint8_t xen_apic_get_tpr(APICCommonState *s) +{ + return 0; +} + +static void xen_apic_vapic_base_update(APICCommonState *s) +{ +} + +static void xen_apic_external_nmi(APICCommonState *s) +{ +} + +static void xen_apic_class_init(ObjectClass *klass, void *data) +{ + APICCommonClass *k = APIC_COMMON_CLASS(klass); + + k->realize = xen_apic_realize; + k->set_base = xen_apic_set_base; + k->set_tpr = xen_apic_set_tpr; + k->get_tpr = xen_apic_get_tpr; + k->vapic_base_update = xen_apic_vapic_base_update; + k->external_nmi = xen_apic_external_nmi; +} + +static const TypeInfo xen_apic_info = { + .name = "xen-apic", + .parent = TYPE_APIC_COMMON, + .instance_size = sizeof(APICCommonState), + .class_init = xen_apic_class_init, +}; + +static void xen_apic_register_types(void) +{ + type_register_static(&xen_apic_info); +} + +type_init(xen_apic_register_types) diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c new file mode 100644 index 0000000000..1d9d0e9f25 --- /dev/null +++ b/hw/i386/xen/xen_platform.c @@ -0,0 +1,450 @@ +/* + * XEN platform pci device, formerly known as the event channel device + * + * Copyright (c) 2003-2004 Intel Corp. + * Copyright (c) 2006 XenSource + * + * 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 <assert.h> + +#include "hw/hw.h" +#include "hw/i386/pc.h" +#include "hw/ide.h" +#include "hw/pci/pci.h" +#include "hw/irq.h" +#include "hw/xen/xen_common.h" +#include "hw/xen/xen_backend.h" +#include "trace.h" +#include "exec/address-spaces.h" + +#include <xenguest.h> + +//#define DEBUG_PLATFORM + +#ifdef DEBUG_PLATFORM +#define DPRINTF(fmt, ...) do { \ + fprintf(stderr, "xen_platform: " fmt, ## __VA_ARGS__); \ +} while (0) +#else +#define DPRINTF(fmt, ...) do { } while (0) +#endif + +#define PFFLAG_ROM_LOCK 1 /* Sets whether ROM memory area is RW or RO */ + +typedef struct PCIXenPlatformState { + /*< private >*/ + PCIDevice parent_obj; + /*< public >*/ + + MemoryRegion fixed_io; + MemoryRegion bar; + MemoryRegion mmio_bar; + uint8_t flags; /* used only for version_id == 2 */ + int drivers_blacklisted; + uint16_t driver_product_version; + + /* Log from guest drivers */ + char log_buffer[4096]; + int log_buffer_off; +} PCIXenPlatformState; + +#define TYPE_XEN_PLATFORM "xen-platform" +#define XEN_PLATFORM(obj) \ + OBJECT_CHECK(PCIXenPlatformState, (obj), TYPE_XEN_PLATFORM) + +#define XEN_PLATFORM_IOPORT 0x10 + +/* Send bytes to syslog */ +static void log_writeb(PCIXenPlatformState *s, char val) +{ + if (val == '\n' || s->log_buffer_off == sizeof(s->log_buffer) - 1) { + /* Flush buffer */ + s->log_buffer[s->log_buffer_off] = 0; + trace_xen_platform_log(s->log_buffer); + s->log_buffer_off = 0; + } else { + s->log_buffer[s->log_buffer_off++] = val; + } +} + +/* Xen Platform, Fixed IOPort */ +#define UNPLUG_ALL_IDE_DISKS 1 +#define UNPLUG_ALL_NICS 2 +#define UNPLUG_AUX_IDE_DISKS 4 + +static void unplug_nic(PCIBus *b, PCIDevice *d, void *o) +{ + /* We have to ignore passthrough devices */ + if (pci_get_word(d->config + PCI_CLASS_DEVICE) == + PCI_CLASS_NETWORK_ETHERNET + && strcmp(d->name, "xen-pci-passthrough") != 0) { + object_unparent(OBJECT(d)); + } +} + +static void pci_unplug_nics(PCIBus *bus) +{ + pci_for_each_device(bus, 0, unplug_nic, NULL); +} + +static void unplug_disks(PCIBus *b, PCIDevice *d, void *o) +{ + /* We have to ignore passthrough devices */ + if (pci_get_word(d->config + PCI_CLASS_DEVICE) == + PCI_CLASS_STORAGE_IDE + && strcmp(d->name, "xen-pci-passthrough") != 0) { + pci_piix3_xen_ide_unplug(DEVICE(d)); + } +} + +static void pci_unplug_disks(PCIBus *bus) +{ + pci_for_each_device(bus, 0, unplug_disks, NULL); +} + +static void platform_fixed_ioport_writew(void *opaque, uint32_t addr, uint32_t val) +{ + PCIXenPlatformState *s = opaque; + + switch (addr) { + case 0: { + PCIDevice *pci_dev = PCI_DEVICE(s); + /* Unplug devices. Value is a bitmask of which devices to + unplug, with bit 0 the IDE devices, bit 1 the network + devices, and bit 2 the non-primary-master IDE devices. */ + if (val & UNPLUG_ALL_IDE_DISKS) { + DPRINTF("unplug disks\n"); + bdrv_drain_all(); + bdrv_flush_all(); + pci_unplug_disks(pci_dev->bus); + } + if (val & UNPLUG_ALL_NICS) { + DPRINTF("unplug nics\n"); + pci_unplug_nics(pci_dev->bus); + } + if (val & UNPLUG_AUX_IDE_DISKS) { + DPRINTF("unplug auxiliary disks not supported\n"); + } + break; + } + case 2: + switch (val) { + case 1: + DPRINTF("Citrix Windows PV drivers loaded in guest\n"); + break; + case 0: + DPRINTF("Guest claimed to be running PV product 0?\n"); + break; + default: + DPRINTF("Unknown PV product %d loaded in guest\n", val); + break; + } + s->driver_product_version = val; + break; + } +} + +static void platform_fixed_ioport_writel(void *opaque, uint32_t addr, + uint32_t val) +{ + switch (addr) { + case 0: + /* PV driver version */ + break; + } +} + +static void platform_fixed_ioport_writeb(void *opaque, uint32_t addr, uint32_t val) +{ + PCIXenPlatformState *s = opaque; + + switch (addr) { + case 0: /* Platform flags */ { + hvmmem_type_t mem_type = (val & PFFLAG_ROM_LOCK) ? + HVMMEM_ram_ro : HVMMEM_ram_rw; + if (xc_hvm_set_mem_type(xen_xc, xen_domid, mem_type, 0xc0, 0x40)) { + DPRINTF("unable to change ro/rw state of ROM memory area!\n"); + } else { + s->flags = val & PFFLAG_ROM_LOCK; + DPRINTF("changed ro/rw state of ROM memory area. now is %s state.\n", + (mem_type == HVMMEM_ram_ro ? "ro":"rw")); + } + break; + } + case 2: + log_writeb(s, val); + break; + } +} + +static uint32_t platform_fixed_ioport_readw(void *opaque, uint32_t addr) +{ + PCIXenPlatformState *s = opaque; + + switch (addr) { + case 0: + if (s->drivers_blacklisted) { + /* The drivers will recognise this magic number and refuse + * to do anything. */ + return 0xd249; + } else { + /* Magic value so that you can identify the interface. */ + return 0x49d2; + } + default: + return 0xffff; + } +} + +static uint32_t platform_fixed_ioport_readb(void *opaque, uint32_t addr) +{ + PCIXenPlatformState *s = opaque; + + switch (addr) { + case 0: + /* Platform flags */ + return s->flags; + case 2: + /* Version number */ + return 1; + default: + return 0xff; + } +} + +static void platform_fixed_ioport_reset(void *opaque) +{ + PCIXenPlatformState *s = opaque; + + platform_fixed_ioport_writeb(s, 0, 0); +} + +static uint64_t platform_fixed_ioport_read(void *opaque, + hwaddr addr, + unsigned size) +{ + switch (size) { + case 1: + return platform_fixed_ioport_readb(opaque, addr); + case 2: + return platform_fixed_ioport_readw(opaque, addr); + default: + return -1; + } +} + +static void platform_fixed_ioport_write(void *opaque, hwaddr addr, + + uint64_t val, unsigned size) +{ + switch (size) { + case 1: + platform_fixed_ioport_writeb(opaque, addr, val); + break; + case 2: + platform_fixed_ioport_writew(opaque, addr, val); + break; + case 4: + platform_fixed_ioport_writel(opaque, addr, val); + break; + } +} + + +static const MemoryRegionOps platform_fixed_io_ops = { + .read = platform_fixed_ioport_read, + .write = platform_fixed_ioport_write, + .valid = { + .unaligned = true, + }, + .impl = { + .min_access_size = 1, + .max_access_size = 4, + .unaligned = true, + }, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static void platform_fixed_ioport_init(PCIXenPlatformState* s) +{ + memory_region_init_io(&s->fixed_io, OBJECT(s), &platform_fixed_io_ops, s, + "xen-fixed", 16); + memory_region_add_subregion(get_system_io(), XEN_PLATFORM_IOPORT, + &s->fixed_io); +} + +/* Xen Platform PCI Device */ + +static uint64_t xen_platform_ioport_readb(void *opaque, hwaddr addr, + unsigned int size) +{ + if (addr == 0) { + return platform_fixed_ioport_readb(opaque, 0); + } else { + return ~0u; + } +} + +static void xen_platform_ioport_writeb(void *opaque, hwaddr addr, + uint64_t val, unsigned int size) +{ + PCIXenPlatformState *s = opaque; + + switch (addr) { + case 0: /* Platform flags */ + platform_fixed_ioport_writeb(opaque, 0, (uint32_t)val); + break; + case 8: + log_writeb(s, (uint32_t)val); + break; + default: + break; + } +} + +static const MemoryRegionOps xen_pci_io_ops = { + .read = xen_platform_ioport_readb, + .write = xen_platform_ioport_writeb, + .impl.min_access_size = 1, + .impl.max_access_size = 1, +}; + +static void platform_ioport_bar_setup(PCIXenPlatformState *d) +{ + memory_region_init_io(&d->bar, OBJECT(d), &xen_pci_io_ops, d, + "xen-pci", 0x100); +} + +static uint64_t platform_mmio_read(void *opaque, hwaddr addr, + unsigned size) +{ + DPRINTF("Warning: attempted read from physical address " + "0x" TARGET_FMT_plx " in xen platform mmio space\n", addr); + + return 0; +} + +static void platform_mmio_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + DPRINTF("Warning: attempted write of 0x%"PRIx64" to physical " + "address 0x" TARGET_FMT_plx " in xen platform mmio space\n", + val, addr); +} + +static const MemoryRegionOps platform_mmio_handler = { + .read = &platform_mmio_read, + .write = &platform_mmio_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void platform_mmio_setup(PCIXenPlatformState *d) +{ + memory_region_init_io(&d->mmio_bar, OBJECT(d), &platform_mmio_handler, d, + "xen-mmio", 0x1000000); +} + +static int xen_platform_post_load(void *opaque, int version_id) +{ + PCIXenPlatformState *s = opaque; + + platform_fixed_ioport_writeb(s, 0, s->flags); + + return 0; +} + +static const VMStateDescription vmstate_xen_platform = { + .name = "platform", + .version_id = 4, + .minimum_version_id = 4, + .minimum_version_id_old = 4, + .post_load = xen_platform_post_load, + .fields = (VMStateField []) { + VMSTATE_PCI_DEVICE(parent_obj, PCIXenPlatformState), + VMSTATE_UINT8(flags, PCIXenPlatformState), + VMSTATE_END_OF_LIST() + } +}; + +static int xen_platform_initfn(PCIDevice *dev) +{ + PCIXenPlatformState *d = XEN_PLATFORM(dev); + uint8_t *pci_conf; + + pci_conf = dev->config; + + pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY); + + pci_config_set_prog_interface(pci_conf, 0); + + pci_conf[PCI_INTERRUPT_PIN] = 1; + + platform_ioport_bar_setup(d); + pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &d->bar); + + /* reserve 16MB mmio address for share memory*/ + platform_mmio_setup(d); + pci_register_bar(dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH, + &d->mmio_bar); + + platform_fixed_ioport_init(d); + + return 0; +} + +static void platform_reset(DeviceState *dev) +{ + PCIXenPlatformState *s = XEN_PLATFORM(dev); + + platform_fixed_ioport_reset(s); +} + +static void xen_platform_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + + k->init = xen_platform_initfn; + k->vendor_id = PCI_VENDOR_ID_XEN; + k->device_id = PCI_DEVICE_ID_XEN_PLATFORM; + k->class_id = PCI_CLASS_OTHERS << 8 | 0x80; + k->subsystem_vendor_id = PCI_VENDOR_ID_XEN; + k->subsystem_id = PCI_DEVICE_ID_XEN_PLATFORM; + k->revision = 1; + set_bit(DEVICE_CATEGORY_MISC, dc->categories); + dc->desc = "XEN platform pci device"; + dc->reset = platform_reset; + dc->vmsd = &vmstate_xen_platform; +} + +static const TypeInfo xen_platform_info = { + .name = TYPE_XEN_PLATFORM, + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIXenPlatformState), + .class_init = xen_platform_class_init, +}; + +static void xen_platform_register_types(void) +{ + type_register_static(&xen_platform_info); +} + +type_init(xen_platform_register_types) diff --git a/hw/i386/xen/xen_pvdevice.c b/hw/i386/xen/xen_pvdevice.c new file mode 100644 index 0000000000..c2189473ba --- /dev/null +++ b/hw/i386/xen/xen_pvdevice.c @@ -0,0 +1,135 @@ +/* Copyright (c) Citrix Systems Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, + * with or without modification, are permitted provided + * that the following conditions are met: + * + * * Redistributions of source code must retain the above + * copyright notice, this list of conditions and the + * following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the + * following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "hw/hw.h" +#include "hw/pci/pci.h" +#include "trace.h" + +#define TYPE_XEN_PV_DEVICE "xen-pvdevice" + +#define XEN_PV_DEVICE(obj) \ + OBJECT_CHECK(XenPVDevice, (obj), TYPE_XEN_PV_DEVICE) + +typedef struct XenPVDevice { + /*< private >*/ + PCIDevice parent_obj; + /*< public >*/ + uint16_t vendor_id; + uint16_t device_id; + uint8_t revision; + uint32_t size; + MemoryRegion mmio; +} XenPVDevice; + +static uint64_t xen_pv_mmio_read(void *opaque, hwaddr addr, + unsigned size) +{ + trace_xen_pv_mmio_read(addr); + + return ~(uint64_t)0; +} + +static void xen_pv_mmio_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + trace_xen_pv_mmio_write(addr); +} + +static const MemoryRegionOps xen_pv_mmio_ops = { + .read = &xen_pv_mmio_read, + .write = &xen_pv_mmio_write, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static int xen_pv_init(PCIDevice *pci_dev) +{ + XenPVDevice *d = XEN_PV_DEVICE(pci_dev); + uint8_t *pci_conf; + + /* device-id property must always be supplied */ + if (d->device_id == 0xffff) + return -1; + + pci_conf = pci_dev->config; + + pci_set_word(pci_conf + PCI_VENDOR_ID, d->vendor_id); + pci_set_word(pci_conf + PCI_SUBSYSTEM_VENDOR_ID, d->vendor_id); + pci_set_word(pci_conf + PCI_DEVICE_ID, d->device_id); + pci_set_word(pci_conf + PCI_SUBSYSTEM_ID, d->device_id); + pci_set_byte(pci_conf + PCI_REVISION_ID, d->revision); + + pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_MEMORY); + + pci_config_set_prog_interface(pci_conf, 0); + + pci_conf[PCI_INTERRUPT_PIN] = 1; + + memory_region_init_io(&d->mmio, NULL, &xen_pv_mmio_ops, d, + "mmio", d->size); + + pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH, + &d->mmio); + + return 0; +} + +static Property xen_pv_props[] = { + DEFINE_PROP_UINT16("vendor-id", XenPVDevice, vendor_id, PCI_VENDOR_ID_XEN), + DEFINE_PROP_UINT16("device-id", XenPVDevice, device_id, 0xffff), + DEFINE_PROP_UINT8("revision", XenPVDevice, revision, 0x01), + DEFINE_PROP_UINT32("size", XenPVDevice, size, 0x400000), + DEFINE_PROP_END_OF_LIST() +}; + +static void xen_pv_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + + k->init = xen_pv_init; + k->class_id = PCI_CLASS_SYSTEM_OTHER; + dc->desc = "Xen PV Device"; + dc->props = xen_pv_props; +} + +static const TypeInfo xen_pv_type_info = { + .name = TYPE_XEN_PV_DEVICE, + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(XenPVDevice), + .class_init = xen_pv_class_init, +}; + +static void xen_pv_register_types(void) +{ + type_register_static(&xen_pv_type_info); +} + +type_init(xen_pv_register_types) diff --git a/hw/i386/xen_domainbuild.c b/hw/i386/xen_domainbuild.c deleted file mode 100644 index c0ab7537df..0000000000 --- a/hw/i386/xen_domainbuild.c +++ /dev/null @@ -1,299 +0,0 @@ -#include <signal.h> -#include "hw/xen/xen_backend.h" -#include "xen_domainbuild.h" -#include "qemu/timer.h" -#include "qemu/log.h" - -#include <xenguest.h> - -static int xenstore_domain_mkdir(char *path) -{ - struct xs_permissions perms_ro[] = {{ - .id = 0, /* set owner: dom0 */ - },{ - .id = xen_domid, - .perms = XS_PERM_READ, - }}; - struct xs_permissions perms_rw[] = {{ - .id = 0, /* set owner: dom0 */ - },{ - .id = xen_domid, - .perms = XS_PERM_READ | XS_PERM_WRITE, - }}; - const char *writable[] = { "device", "control", "error", NULL }; - char subpath[256]; - int i; - - if (!xs_mkdir(xenstore, 0, path)) { - fprintf(stderr, "%s: xs_mkdir %s: failed\n", __FUNCTION__, path); - return -1; - } - if (!xs_set_permissions(xenstore, 0, path, perms_ro, 2)) { - fprintf(stderr, "%s: xs_set_permissions failed\n", __FUNCTION__); - return -1; - } - - for (i = 0; writable[i]; i++) { - snprintf(subpath, sizeof(subpath), "%s/%s", path, writable[i]); - if (!xs_mkdir(xenstore, 0, subpath)) { - fprintf(stderr, "%s: xs_mkdir %s: failed\n", __FUNCTION__, subpath); - return -1; - } - if (!xs_set_permissions(xenstore, 0, subpath, perms_rw, 2)) { - fprintf(stderr, "%s: xs_set_permissions failed\n", __FUNCTION__); - return -1; - } - } - return 0; -} - -int xenstore_domain_init1(const char *kernel, const char *ramdisk, - const char *cmdline) -{ - char *dom, uuid_string[42], vm[256], path[256]; - int i; - - snprintf(uuid_string, sizeof(uuid_string), UUID_FMT, - qemu_uuid[0], qemu_uuid[1], qemu_uuid[2], qemu_uuid[3], - qemu_uuid[4], qemu_uuid[5], qemu_uuid[6], qemu_uuid[7], - qemu_uuid[8], qemu_uuid[9], qemu_uuid[10], qemu_uuid[11], - qemu_uuid[12], qemu_uuid[13], qemu_uuid[14], qemu_uuid[15]); - dom = xs_get_domain_path(xenstore, xen_domid); - snprintf(vm, sizeof(vm), "/vm/%s", uuid_string); - - xenstore_domain_mkdir(dom); - - xenstore_write_str(vm, "image/ostype", "linux"); - if (kernel) - xenstore_write_str(vm, "image/kernel", kernel); - if (ramdisk) - xenstore_write_str(vm, "image/ramdisk", ramdisk); - if (cmdline) - xenstore_write_str(vm, "image/cmdline", cmdline); - - /* name + id */ - xenstore_write_str(vm, "name", qemu_name ? qemu_name : "no-name"); - xenstore_write_str(vm, "uuid", uuid_string); - xenstore_write_str(dom, "name", qemu_name ? qemu_name : "no-name"); - xenstore_write_int(dom, "domid", xen_domid); - xenstore_write_str(dom, "vm", vm); - - /* memory */ - xenstore_write_int(dom, "memory/target", ram_size >> 10); // kB - xenstore_write_int(vm, "memory", ram_size >> 20); // MB - xenstore_write_int(vm, "maxmem", ram_size >> 20); // MB - - /* cpus */ - for (i = 0; i < smp_cpus; i++) { - snprintf(path, sizeof(path), "cpu/%d/availability",i); - xenstore_write_str(dom, path, "online"); - } - xenstore_write_int(vm, "vcpu_avail", smp_cpus); - xenstore_write_int(vm, "vcpus", smp_cpus); - - /* vnc password */ - xenstore_write_str(vm, "vncpassword", "" /* FIXME */); - - free(dom); - return 0; -} - -int xenstore_domain_init2(int xenstore_port, int xenstore_mfn, - int console_port, int console_mfn) -{ - char *dom; - - dom = xs_get_domain_path(xenstore, xen_domid); - - /* signal new domain */ - xs_introduce_domain(xenstore, - xen_domid, - xenstore_mfn, - xenstore_port); - - /* xenstore */ - xenstore_write_int(dom, "store/ring-ref", xenstore_mfn); - xenstore_write_int(dom, "store/port", xenstore_port); - - /* console */ - xenstore_write_str(dom, "console/type", "ioemu"); - xenstore_write_int(dom, "console/limit", 128 * 1024); - xenstore_write_int(dom, "console/ring-ref", console_mfn); - xenstore_write_int(dom, "console/port", console_port); - xen_config_dev_console(0); - - free(dom); - return 0; -} - -/* ------------------------------------------------------------- */ - -static QEMUTimer *xen_poll; - -/* check domain state once per second */ -static void xen_domain_poll(void *opaque) -{ - struct xc_dominfo info; - int rc; - - rc = xc_domain_getinfo(xen_xc, xen_domid, 1, &info); - if ((rc != 1) || (info.domid != xen_domid)) { - qemu_log("xen: domain %d is gone\n", xen_domid); - goto quit; - } - if (info.dying) { - qemu_log("xen: domain %d is dying (%s%s)\n", xen_domid, - info.crashed ? "crashed" : "", - info.shutdown ? "shutdown" : ""); - goto quit; - } - - timer_mod(xen_poll, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000); - return; - -quit: - qemu_system_shutdown_request(); -} - -static int xen_domain_watcher(void) -{ - int qemu_running = 1; - int fd[2], i, n, rc; - char byte; - - if (pipe(fd) != 0) { - qemu_log("%s: Huh? pipe error: %s\n", __FUNCTION__, strerror(errno)); - return -1; - } - if (fork() != 0) - return 0; /* not child */ - - /* close all file handles, except stdio/out/err, - * our watch pipe and the xen interface handle */ - n = getdtablesize(); - for (i = 3; i < n; i++) { - if (i == fd[0]) - continue; - if (i == xc_fd(xen_xc)) { - continue; - } - close(i); - } - - /* ignore term signals */ - signal(SIGINT, SIG_IGN); - signal(SIGTERM, SIG_IGN); - - /* wait for qemu exiting */ - while (qemu_running) { - rc = read(fd[0], &byte, 1); - switch (rc) { - case -1: - if (errno == EINTR) - continue; - qemu_log("%s: Huh? read error: %s\n", __FUNCTION__, strerror(errno)); - qemu_running = 0; - break; - case 0: - /* EOF -> qemu exited */ - qemu_running = 0; - break; - default: - qemu_log("%s: Huh? data on the watch pipe?\n", __FUNCTION__); - break; - } - } - - /* cleanup */ - qemu_log("%s: destroy domain %d\n", __FUNCTION__, xen_domid); - xc_domain_destroy(xen_xc, xen_domid); - _exit(0); -} - -/* normal cleanup */ -static void xen_domain_cleanup(void) -{ - char *dom; - - dom = xs_get_domain_path(xenstore, xen_domid); - if (dom) { - xs_rm(xenstore, 0, dom); - free(dom); - } - xs_release_domain(xenstore, xen_domid); -} - -int xen_domain_build_pv(const char *kernel, const char *ramdisk, - const char *cmdline) -{ - uint32_t ssidref = 0; - uint32_t flags = 0; - xen_domain_handle_t uuid; - unsigned int xenstore_port = 0, console_port = 0; - unsigned long xenstore_mfn = 0, console_mfn = 0; - int rc; - - memcpy(uuid, qemu_uuid, sizeof(uuid)); - rc = xc_domain_create(xen_xc, ssidref, uuid, flags, &xen_domid); - if (rc < 0) { - fprintf(stderr, "xen: xc_domain_create() failed\n"); - goto err; - } - qemu_log("xen: created domain %d\n", xen_domid); - atexit(xen_domain_cleanup); - if (xen_domain_watcher() == -1) { - goto err; - } - - xenstore_domain_init1(kernel, ramdisk, cmdline); - - rc = xc_domain_max_vcpus(xen_xc, xen_domid, smp_cpus); - if (rc < 0) { - fprintf(stderr, "xen: xc_domain_max_vcpus() failed\n"); - goto err; - } - -#if 0 - rc = xc_domain_setcpuweight(xen_xc, xen_domid, 256); - if (rc < 0) { - fprintf(stderr, "xen: xc_domain_setcpuweight() failed\n"); - goto err; - } -#endif - - rc = xc_domain_setmaxmem(xen_xc, xen_domid, ram_size >> 10); - if (rc < 0) { - fprintf(stderr, "xen: xc_domain_setmaxmem() failed\n"); - goto err; - } - - xenstore_port = xc_evtchn_alloc_unbound(xen_xc, xen_domid, 0); - console_port = xc_evtchn_alloc_unbound(xen_xc, xen_domid, 0); - - rc = xc_linux_build(xen_xc, xen_domid, ram_size >> 20, - kernel, ramdisk, cmdline, - 0, flags, - xenstore_port, &xenstore_mfn, - console_port, &console_mfn); - if (rc < 0) { - fprintf(stderr, "xen: xc_linux_build() failed\n"); - goto err; - } - - xenstore_domain_init2(xenstore_port, xenstore_mfn, - console_port, console_mfn); - - qemu_log("xen: unpausing domain %d\n", xen_domid); - rc = xc_domain_unpause(xen_xc, xen_domid); - if (rc < 0) { - fprintf(stderr, "xen: xc_domain_unpause() failed\n"); - goto err; - } - - xen_poll = timer_new_ms(QEMU_CLOCK_REALTIME, xen_domain_poll, NULL); - timer_mod(xen_poll, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000); - return 0; - -err: - return -1; -} diff --git a/hw/i386/xen_domainbuild.h b/hw/i386/xen_domainbuild.h deleted file mode 100644 index 29a91ea7b1..0000000000 --- a/hw/i386/xen_domainbuild.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef QEMU_HW_XEN_DOMAINBUILD_H -#define QEMU_HW_XEN_DOMAINBUILD_H 1 - -#include "hw/xen/xen_common.h" - -int xenstore_domain_init1(const char *kernel, const char *ramdisk, - const char *cmdline); -int xenstore_domain_init2(int xenstore_port, int xenstore_mfn, - int console_port, int console_mfn); -int xen_domain_build_pv(const char *kernel, const char *ramdisk, - const char *cmdline); - -#endif /* QEMU_HW_XEN_DOMAINBUILD_H */ diff --git a/hw/i386/xen_machine_pv.c b/hw/i386/xen_machine_pv.c deleted file mode 100644 index 9adb57fc14..0000000000 --- a/hw/i386/xen_machine_pv.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * QEMU Xen PV Machine - * - * Copyright (c) 2007 Red Hat - * - * 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 "hw/hw.h" -#include "hw/boards.h" -#include "hw/xen/xen_backend.h" -#include "xen_domainbuild.h" -#include "sysemu/blockdev.h" - -static void xen_init_pv(QEMUMachineInitArgs *args) -{ - const char *kernel_filename = args->kernel_filename; - const char *kernel_cmdline = args->kernel_cmdline; - const char *initrd_filename = args->initrd_filename; - DriveInfo *dinfo; - int i; - - /* Initialize backend core & drivers */ - if (xen_be_init() != 0) { - fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__); - exit(1); - } - - switch (xen_mode) { - case XEN_ATTACH: - /* nothing to do, xend handles everything */ - break; - case XEN_CREATE: - if (xen_domain_build_pv(kernel_filename, initrd_filename, - kernel_cmdline) < 0) { - fprintf(stderr, "xen pv domain creation failed\n"); - exit(1); - } - break; - case XEN_EMULATE: - fprintf(stderr, "xen emulation not implemented (yet)\n"); - exit(1); - break; - } - - xen_be_register("console", &xen_console_ops); - xen_be_register("vkbd", &xen_kbdmouse_ops); - xen_be_register("vfb", &xen_framebuffer_ops); - xen_be_register("qdisk", &xen_blkdev_ops); - xen_be_register("qnic", &xen_netdev_ops); - - /* configure framebuffer */ - if (xenfb_enabled) { - xen_config_dev_vfb(0, "vnc"); - xen_config_dev_vkbd(0); - } - - /* configure disks */ - for (i = 0; i < 16; i++) { - dinfo = drive_get(IF_XEN, 0, i); - if (!dinfo) - continue; - xen_config_dev_blk(dinfo); - } - - /* configure nics */ - for (i = 0; i < nb_nics; i++) { - if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen")) - continue; - xen_config_dev_nic(nd_table + i); - } - - /* config cleanup hook */ - atexit(xen_config_cleanup); - - /* setup framebuffer */ - xen_init_display(xen_domid); -} - -static QEMUMachine xenpv_machine = { - .name = "xenpv", - .desc = "Xen Para-virtualized PC", - .init = xen_init_pv, - .max_cpus = 1, - .default_machine_opts = "accel=xen", -}; - -static void xenpv_machine_init(void) -{ - qemu_register_machine(&xenpv_machine); -} - -machine_init(xenpv_machine_init); |