Network boot for s390x. More information (and instructions
for building a s390-netboot.img) can be found at http://wiki.qemu-project.org/Features/S390xNetworkBoot -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJYtV6WAAoJEN7Pa5PG8C+vip4P/0qdPwFJ7BJlbWH9os58btwH 3fkIaGvbVbHVPyi5E9XyyiYRHfxUMdDJkQxzf2kD7HR8Sqx5Pyy1p/Fdz/XPCw6R vWcLAn8FkcI9pPdjI7dY7MxM6BqeeZAUwL9HmTLU1L80Rf1xxHxjbzE7hy3YeEGg bFPx4AEpa/MVyOV4sSpfUjsYVQiB9dPtgjjDnxVSGcU3oE2lyceQXj4UxcagxfbE gQis2hPqQC13pSC/jB6KPI8IW1+Y88Azf493fiGEj2MCm+Mge/9ksK+TtYuWrbV8 e5DY73vNymJd4WXEFp1f2+2T14zpObpGOQv6O0yJMNj/UOJY5KON8qIEIe1XP7lY D22MiV1q+CoDnRQeN4BoNRPwGDoRPCh31BdzMOZXc6c/kyTcW5lxOBWl6SKaxlDM K3MoboiH9qF23VX3i2C6id9EiebDMubYmO3d8WlIHB+7digEco0VjC+vEZa18AW2 3/fMke8mWvymeHKIbmZwm2X15QQg0s7VMjoU+iZ4l3vqjBb21BkYv/ZofqfcNe2q y9xp84m4YuFu8rRjPoupgexuY7N5JaxX1opExFLNyR6RUWGRWpBkaQzBbvUYmVF0 9Ml3lXXPpo5AfXBs256KXrAZTG3oZ+eUeIWYTgWPY8ibqUCHHHMa23ZnB8UUe/2a rxx9PEZVcG4i73cOTclH =nH9Y -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20170228' into staging Network boot for s390x. More information (and instructions for building a s390-netboot.img) can be found at http://wiki.qemu-project.org/Features/S390xNetworkBoot # gpg: Signature made Tue 28 Feb 2017 11:27:18 GMT # gpg: using RSA key 0xDECF6B93C6F02FAF # gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" # Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF * remotes/cohuck/tags/s390x-20170228: pc-bios/s390-ccw.img: rebuild image pc-bios/s390-ccw: Use the ccw bios to start the network boot s390x/ipl: Load network boot image s390x/ipl: Extend S390IPLState to support network boot elf-loader: Allow late loading of elf Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
commit
758af5e862
|
@ -434,6 +434,19 @@ int load_elf_as(const char *filename,
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void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
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uint64_t *highaddr, int big_endian, int elf_machine,
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int clear_lsb, int data_swab, AddressSpace *as)
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{
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return load_elf_ram(filename, translate_fn, translate_opaque,
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pentry, lowaddr, highaddr, big_endian, elf_machine,
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clear_lsb, data_swab, as, true);
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}
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/* return < 0 if error, otherwise the number of bytes loaded in memory */
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int load_elf_ram(const char *filename,
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uint64_t (*translate_fn)(void *, uint64_t),
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void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
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uint64_t *highaddr, int big_endian, int elf_machine,
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int clear_lsb, int data_swab, AddressSpace *as,
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bool load_rom)
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{
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int fd, data_order, target_data_order, must_swab, ret = ELF_LOAD_FAILED;
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uint8_t e_ident[EI_NIDENT];
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@ -473,11 +486,11 @@ int load_elf_as(const char *filename,
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if (e_ident[EI_CLASS] == ELFCLASS64) {
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ret = load_elf64(filename, fd, translate_fn, translate_opaque, must_swab,
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pentry, lowaddr, highaddr, elf_machine, clear_lsb,
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data_swab, as);
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data_swab, as, load_rom);
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} else {
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ret = load_elf32(filename, fd, translate_fn, translate_opaque, must_swab,
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pentry, lowaddr, highaddr, elf_machine, clear_lsb,
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data_swab, as);
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data_swab, as, load_rom);
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}
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fail:
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@ -20,6 +20,7 @@
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#include "hw/s390x/virtio-ccw.h"
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#include "hw/s390x/css.h"
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#include "ipl.h"
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#include "qemu/error-report.h"
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#define KERN_IMAGE_START 0x010000UL
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#define KERN_PARM_AREA 0x010480UL
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@ -209,6 +210,7 @@ static Property s390_ipl_properties[] = {
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DEFINE_PROP_STRING("initrd", S390IPLState, initrd),
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DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline),
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DEFINE_PROP_STRING("firmware", S390IPLState, firmware),
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DEFINE_PROP_STRING("netboot_fw", S390IPLState, netboot_fw),
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DEFINE_PROP_BOOL("enforce_bios", S390IPLState, enforce_bios, false),
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DEFINE_PROP_BOOL("iplbext_migration", S390IPLState, iplbext_migration,
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true),
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@ -226,6 +228,12 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
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TYPE_VIRTIO_CCW_DEVICE);
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SCSIDevice *sd = (SCSIDevice *) object_dynamic_cast(OBJECT(dev_st),
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TYPE_SCSI_DEVICE);
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VirtIONet *vn = (VirtIONet *) object_dynamic_cast(OBJECT(dev_st),
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TYPE_VIRTIO_NET);
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if (vn) {
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ipl->netboot = true;
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}
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if (virtio_ccw_dev) {
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CcwDevice *ccw_dev = CCW_DEVICE(virtio_ccw_dev);
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@ -258,12 +266,86 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
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return false;
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}
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static int load_netboot_image(Error **errp)
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{
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S390IPLState *ipl = get_ipl_device();
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char *netboot_filename;
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MemoryRegion *sysmem = get_system_memory();
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MemoryRegion *mr = NULL;
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void *ram_ptr = NULL;
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int img_size = -1;
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mr = memory_region_find(sysmem, 0, 1).mr;
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if (!mr) {
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error_setg(errp, "Failed to find memory region at address 0");
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return -1;
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}
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ram_ptr = memory_region_get_ram_ptr(mr);
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if (!ram_ptr) {
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error_setg(errp, "No RAM found");
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goto unref_mr;
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}
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netboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->netboot_fw);
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if (netboot_filename == NULL) {
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error_setg(errp, "Could not find network bootloader");
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goto unref_mr;
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}
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img_size = load_elf_ram(netboot_filename, NULL, NULL, &ipl->start_addr,
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NULL, NULL, 1, EM_S390, 0, 0, NULL, false);
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if (img_size < 0) {
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img_size = load_image_size(netboot_filename, ram_ptr, ram_size);
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ipl->start_addr = KERN_IMAGE_START;
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}
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if (img_size < 0) {
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error_setg(errp, "Failed to load network bootloader");
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}
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g_free(netboot_filename);
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unref_mr:
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memory_region_unref(mr);
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return img_size;
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}
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static bool is_virtio_net_device(IplParameterBlock *iplb)
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{
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uint8_t cssid;
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uint8_t ssid;
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uint16_t devno;
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uint16_t schid;
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SubchDev *sch = NULL;
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if (iplb->pbt != S390_IPL_TYPE_CCW) {
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return false;
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}
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devno = be16_to_cpu(iplb->ccw.devno);
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ssid = iplb->ccw.ssid & 3;
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for (schid = 0; schid < MAX_SCHID; schid++) {
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for (cssid = 0; cssid < MAX_CSSID; cssid++) {
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sch = css_find_subch(1, cssid, ssid, schid);
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if (sch && sch->devno == devno) {
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return sch->id.cu_model == VIRTIO_ID_NET;
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}
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}
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}
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return false;
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}
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void s390_ipl_update_diag308(IplParameterBlock *iplb)
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{
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S390IPLState *ipl = get_ipl_device();
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ipl->iplb = *iplb;
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ipl->iplb_valid = true;
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ipl->netboot = is_virtio_net_device(iplb);
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}
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IplParameterBlock *s390_ipl_get_iplb(void)
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@ -287,6 +369,7 @@ void s390_reipl_request(void)
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void s390_ipl_prepare_cpu(S390CPU *cpu)
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{
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S390IPLState *ipl = get_ipl_device();
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Error *err = NULL;
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cpu->env.psw.addr = ipl->start_addr;
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cpu->env.psw.mask = IPL_PSW_MASK;
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@ -297,6 +380,13 @@ void s390_ipl_prepare_cpu(S390CPU *cpu)
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ipl->iplb_valid = s390_gen_initial_iplb(ipl);
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}
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}
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if (ipl->netboot) {
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if (load_netboot_image(&err) < 0) {
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error_report_err(err);
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vm_stop(RUN_STATE_INTERNAL_ERROR);
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}
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ipl->iplb.ccw.netboot_start_addr = ipl->start_addr;
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}
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}
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static void s390_ipl_reset(DeviceState *dev)
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@ -16,7 +16,8 @@
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#include "cpu.h"
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struct IplBlockCcw {
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uint8_t reserved0[85];
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uint64_t netboot_start_addr;
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uint8_t reserved0[77];
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uint8_t ssid;
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uint16_t devno;
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uint8_t vm_flags;
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@ -100,12 +101,14 @@ struct S390IPLState {
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IplParameterBlock iplb;
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bool iplb_valid;
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bool reipl_requested;
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bool netboot;
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/*< public >*/
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char *kernel;
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char *initrd;
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char *cmdline;
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char *firmware;
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char *netboot_fw;
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uint8_t cssid;
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uint8_t ssid;
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uint16_t devno;
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|
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@ -116,7 +116,8 @@ static void ccw_init(MachineState *machine)
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/* get a BUS */
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css_bus = virtual_css_bus_init();
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s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
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machine->initrd_filename, "s390-ccw.img", true);
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machine->initrd_filename, "s390-ccw.img",
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"s390-netboot.img", true);
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s390_flic_init();
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dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);
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|
|
|
@ -65,6 +65,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
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const char *kernel_cmdline,
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const char *initrd_filename,
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const char *firmware,
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const char *netboot_fw,
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bool enforce_bios)
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{
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Object *new = object_new(TYPE_S390_IPL);
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@ -78,6 +79,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
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}
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qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
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qdev_prop_set_string(dev, "firmware", firmware);
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qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
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qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
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object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
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new, NULL);
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|
|
|
@ -24,6 +24,7 @@ void s390_init_ipl_dev(const char *kernel_filename,
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const char *kernel_cmdline,
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const char *initrd_filename,
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const char *firmware,
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const char *netboot_fw,
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bool enforce_bios);
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void s390_create_virtio_net(BusState *bus, const char *name);
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void s390_nmi(NMIState *n, int cpu_index, Error **errp);
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|
|
|
@ -264,7 +264,7 @@ static int glue(load_elf, SZ)(const char *name, int fd,
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int must_swab, uint64_t *pentry,
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uint64_t *lowaddr, uint64_t *highaddr,
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int elf_machine, int clear_lsb, int data_swab,
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AddressSpace *as)
|
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AddressSpace *as, bool load_rom)
|
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{
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struct elfhdr ehdr;
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struct elf_phdr *phdr = NULL, *ph;
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|
@ -403,10 +403,15 @@ static int glue(load_elf, SZ)(const char *name, int fd,
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*pentry = ehdr.e_entry - ph->p_vaddr + ph->p_paddr;
|
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}
|
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|
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snprintf(label, sizeof(label), "phdr #%d: %s", i, name);
|
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if (load_rom) {
|
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snprintf(label, sizeof(label), "phdr #%d: %s", i, name);
|
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|
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/* rom_add_elf_program() seize the ownership of 'data' */
|
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rom_add_elf_program(label, data, file_size, mem_size, addr, as);
|
||||
/* rom_add_elf_program() seize the ownership of 'data' */
|
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rom_add_elf_program(label, data, file_size, mem_size, addr, as);
|
||||
} else {
|
||||
cpu_physical_memory_write(addr, data, file_size);
|
||||
g_free(data);
|
||||
}
|
||||
|
||||
total_size += mem_size;
|
||||
if (addr < low)
|
||||
|
|
|
@ -65,7 +65,7 @@ int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz);
|
|||
#define ELF_LOAD_WRONG_ENDIAN -4
|
||||
const char *load_elf_strerror(int error);
|
||||
|
||||
/** load_elf_as:
|
||||
/** load_elf_ram:
|
||||
* @filename: Path of ELF file
|
||||
* @translate_fn: optional function to translate load addresses
|
||||
* @translate_opaque: opaque data passed to @translate_fn
|
||||
|
@ -81,6 +81,7 @@ const char *load_elf_strerror(int error);
|
|||
* words and 3 for within doublewords.
|
||||
* @as: The AddressSpace to load the ELF to. The value of address_space_memory
|
||||
* is used if nothing is supplied here.
|
||||
* @load_rom : Load ELF binary as ROM
|
||||
*
|
||||
* Load an ELF file's contents to the emulated system's address space.
|
||||
* Clients may optionally specify a callback to perform address
|
||||
|
@ -93,6 +94,16 @@ const char *load_elf_strerror(int error);
|
|||
* If @elf_machine is EM_NONE then the machine type will be read from the
|
||||
* ELF header and no checks will be carried out against the machine type.
|
||||
*/
|
||||
int load_elf_ram(const char *filename,
|
||||
uint64_t (*translate_fn)(void *, uint64_t),
|
||||
void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
|
||||
uint64_t *highaddr, int big_endian, int elf_machine,
|
||||
int clear_lsb, int data_swab, AddressSpace *as,
|
||||
bool load_rom);
|
||||
|
||||
/** load_elf_as:
|
||||
* Same as load_elf_ram(), but always loads the elf as ROM
|
||||
*/
|
||||
int load_elf_as(const char *filename,
|
||||
uint64_t (*translate_fn)(void *, uint64_t),
|
||||
void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
|
||||
|
|
Binary file not shown.
|
@ -724,11 +724,17 @@ static void zipl_load_vscsi(void)
|
|||
|
||||
void zipl_load(void)
|
||||
{
|
||||
if (virtio_get_device()->is_cdrom) {
|
||||
VDev *vdev = virtio_get_device();
|
||||
|
||||
if (vdev->is_cdrom) {
|
||||
ipl_iso_el_torito();
|
||||
panic("\n! Cannot IPL this ISO image !\n");
|
||||
}
|
||||
|
||||
if (virtio_get_device_type() == VIRTIO_ID_NET) {
|
||||
jump_to_IPL_code(vdev->netboot_start_addr);
|
||||
}
|
||||
|
||||
ipl_scsi();
|
||||
|
||||
switch (virtio_get_device_type()) {
|
||||
|
|
|
@ -13,7 +13,8 @@
|
|||
#define IPLB_H
|
||||
|
||||
struct IplBlockCcw {
|
||||
uint8_t reserved0[85];
|
||||
uint64_t netboot_start_addr;
|
||||
uint8_t reserved0[77];
|
||||
uint8_t ssid;
|
||||
uint16_t devno;
|
||||
uint8_t vm_flags;
|
||||
|
|
|
@ -53,6 +53,12 @@ static bool find_dev(Schib *schib, int dev_no)
|
|||
if (!virtio_is_supported(blk_schid)) {
|
||||
continue;
|
||||
}
|
||||
/* Skip net devices since no IPLB is created and therefore no
|
||||
* no network bootloader has been loaded
|
||||
*/
|
||||
if (virtio_get_device_type() == VIRTIO_ID_NET && dev_no < 0) {
|
||||
continue;
|
||||
}
|
||||
if ((dev_no < 0) || (schib->pmcw.dev == dev_no)) {
|
||||
return true;
|
||||
}
|
||||
|
@ -67,6 +73,7 @@ static void virtio_setup(void)
|
|||
int ssid;
|
||||
bool found = false;
|
||||
uint16_t dev_no;
|
||||
VDev *vdev = virtio_get_device();
|
||||
|
||||
/*
|
||||
* We unconditionally enable mss support. In every sane configuration,
|
||||
|
@ -85,9 +92,6 @@ static void virtio_setup(void)
|
|||
found = find_dev(&schib, dev_no);
|
||||
break;
|
||||
case S390_IPL_TYPE_QEMU_SCSI:
|
||||
{
|
||||
VDev *vdev = virtio_get_device();
|
||||
|
||||
vdev->scsi_device_selected = true;
|
||||
vdev->selected_scsi_device.channel = iplb.scsi.channel;
|
||||
vdev->selected_scsi_device.target = iplb.scsi.target;
|
||||
|
@ -95,7 +99,6 @@ static void virtio_setup(void)
|
|||
blk_schid.ssid = iplb.scsi.ssid & 0x3;
|
||||
found = find_dev(&schib, iplb.scsi.devno);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
panic("List-directed IPL not supported yet!\n");
|
||||
}
|
||||
|
@ -111,9 +114,14 @@ static void virtio_setup(void)
|
|||
|
||||
IPL_assert(found, "No virtio device found");
|
||||
|
||||
virtio_setup_device(blk_schid);
|
||||
if (virtio_get_device_type() == VIRTIO_ID_NET) {
|
||||
sclp_print("Network boot device detected\n");
|
||||
vdev->netboot_start_addr = iplb.ccw.netboot_start_addr;
|
||||
} else {
|
||||
virtio_setup_device(blk_schid);
|
||||
|
||||
IPL_assert(virtio_ipl_disk_is_valid(), "No valid IPL device detected");
|
||||
IPL_assert(virtio_ipl_disk_is_valid(), "No valid IPL device detected");
|
||||
}
|
||||
}
|
||||
|
||||
int main(void)
|
||||
|
|
|
@ -585,6 +585,7 @@ bool virtio_is_supported(SubChannelId schid)
|
|||
switch (vdev.senseid.cu_model) {
|
||||
case VIRTIO_ID_BLOCK:
|
||||
case VIRTIO_ID_SCSI:
|
||||
case VIRTIO_ID_NET:
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
|
|
@ -276,6 +276,7 @@ struct VDev {
|
|||
uint8_t scsi_dev_heads;
|
||||
bool scsi_device_selected;
|
||||
ScsiDevice selected_scsi_device;
|
||||
uint64_t netboot_start_addr;
|
||||
};
|
||||
typedef struct VDev VDev;
|
||||
|
||||
|
|
Loading…
Reference in a new issue