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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/char/sclpconsole-lm.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/hw/char/sclpconsole-lm.c')
-rw-r--r--qemu/hw/char/sclpconsole-lm.c384
1 files changed, 0 insertions, 384 deletions
diff --git a/qemu/hw/char/sclpconsole-lm.c b/qemu/hw/char/sclpconsole-lm.c
deleted file mode 100644
index 7d4ff8120..000000000
--- a/qemu/hw/char/sclpconsole-lm.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
- * SCLP event types
- * Operations Command - Line Mode input
- * Message - Line Mode output
- *
- * Copyright IBM, Corp. 2013
- *
- * Authors:
- * Heinz Graalfs <graalfs@linux.vnet.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or (at your
- * option) any later version. See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "hw/qdev.h"
-#include "qemu/thread.h"
-#include "qemu/error-report.h"
-#include "sysemu/char.h"
-
-#include "hw/s390x/sclp.h"
-#include "hw/s390x/event-facility.h"
-#include "hw/s390x/ebcdic.h"
-
-#define SIZE_BUFFER 4096
-#define NEWLINE "\n"
-
-typedef struct OprtnsCommand {
- EventBufferHeader header;
- MDMSU message_unit;
- char data[0];
-} QEMU_PACKED OprtnsCommand;
-
-/* max size for line-mode data in 4K SCCB page */
-#define SIZE_CONSOLE_BUFFER (SCCB_DATA_LEN - sizeof(OprtnsCommand))
-
-typedef struct SCLPConsoleLM {
- SCLPEvent event;
- CharDriverState *chr;
- bool echo; /* immediate echo of input if true */
- uint32_t write_errors; /* errors writing to char layer */
- uint32_t length; /* length of byte stream in buffer */
- uint8_t buf[SIZE_CONSOLE_BUFFER];
-} SCLPConsoleLM;
-
-/*
-* Character layer call-back functions
- *
- * Allow 1 character at a time
- *
- * Accumulate bytes from character layer in console buffer,
- * event_pending is set when a newline character is encountered
- *
- * The maximum command line length is limited by the maximum
- * space available in an SCCB. Line mode console input is sent
- * truncated to the guest in case it doesn't fit into the SCCB.
- */
-
-static int chr_can_read(void *opaque)
-{
- SCLPConsoleLM *scon = opaque;
-
- if (scon->event.event_pending) {
- return 0;
- }
- return 1;
-}
-
-static void chr_read(void *opaque, const uint8_t *buf, int size)
-{
- SCLPConsoleLM *scon = opaque;
-
- assert(size == 1);
-
- if (*buf == '\r' || *buf == '\n') {
- scon->event.event_pending = true;
- sclp_service_interrupt(0);
- return;
- }
- if (scon->length == SIZE_CONSOLE_BUFFER) {
- /* Eat the character, but still process CR and LF. */
- return;
- }
- scon->buf[scon->length] = *buf;
- scon->length += 1;
- if (scon->echo) {
- qemu_chr_fe_write(scon->chr, buf, size);
- }
-}
-
-/* functions to be called by event facility */
-
-static bool can_handle_event(uint8_t type)
-{
- return type == SCLP_EVENT_MESSAGE || type == SCLP_EVENT_PMSGCMD;
-}
-
-static unsigned int send_mask(void)
-{
- return SCLP_EVENT_MASK_OP_CMD | SCLP_EVENT_MASK_PMSGCMD;
-}
-
-static unsigned int receive_mask(void)
-{
- return SCLP_EVENT_MASK_MSG | SCLP_EVENT_MASK_PMSGCMD;
-}
-
-/*
- * Triggered by SCLP's read_event_data
- * - convert ASCII byte stream to EBCDIC and
- * - copy converted data into provided (SCLP) buffer
- */
-static int get_console_data(SCLPEvent *event, uint8_t *buf, size_t *size,
- int avail)
-{
- int len;
-
- SCLPConsoleLM *cons = DO_UPCAST(SCLPConsoleLM, event, event);
-
- len = cons->length;
- /* data need to fit into provided SCLP buffer */
- if (len > avail) {
- return 1;
- }
-
- ebcdic_put(buf, (char *)&cons->buf, len);
- *size = len;
- cons->length = 0;
- /* data provided and no more data pending */
- event->event_pending = false;
- qemu_notify_event();
- return 0;
-}
-
-static int read_event_data(SCLPEvent *event, EventBufferHeader *evt_buf_hdr,
- int *slen)
-{
- int avail, rc;
- size_t src_len;
- uint8_t *to;
- OprtnsCommand *oc = (OprtnsCommand *) evt_buf_hdr;
-
- if (!event->event_pending) {
- /* no data pending */
- return 0;
- }
-
- to = (uint8_t *)&oc->data;
- avail = *slen - sizeof(OprtnsCommand);
- rc = get_console_data(event, to, &src_len, avail);
- if (rc) {
- /* data didn't fit, try next SCCB */
- return 1;
- }
-
- oc->message_unit.mdmsu.gds_id = GDS_ID_MDSMU;
- oc->message_unit.mdmsu.length = cpu_to_be16(sizeof(struct MDMSU));
-
- oc->message_unit.cpmsu.gds_id = GDS_ID_CPMSU;
- oc->message_unit.cpmsu.length =
- cpu_to_be16(sizeof(struct MDMSU) - sizeof(GdsVector));
-
- oc->message_unit.text_command.gds_id = GDS_ID_TEXTCMD;
- oc->message_unit.text_command.length =
- cpu_to_be16(sizeof(struct MDMSU) - (2 * sizeof(GdsVector)));
-
- oc->message_unit.self_def_text_message.key = GDS_KEY_SELFDEFTEXTMSG;
- oc->message_unit.self_def_text_message.length =
- cpu_to_be16(sizeof(struct MDMSU) - (3 * sizeof(GdsVector)));
-
- oc->message_unit.text_message.key = GDS_KEY_TEXTMSG;
- oc->message_unit.text_message.length =
- cpu_to_be16(sizeof(GdsSubvector) + src_len);
-
- oc->header.length = cpu_to_be16(sizeof(OprtnsCommand) + src_len);
- oc->header.type = SCLP_EVENT_OPRTNS_COMMAND;
- *slen = avail - src_len;
-
- return 1;
-}
-
-/*
- * Triggered by SCLP's write_event_data
- * - write console data to character layer
- * returns < 0 if an error occurred
- */
-static int write_console_data(SCLPEvent *event, const uint8_t *buf, int len)
-{
- int ret = 0;
- const uint8_t *buf_offset;
-
- SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);
-
- if (!scon->chr) {
- /* If there's no backend, we can just say we consumed all data. */
- return len;
- }
-
- buf_offset = buf;
- while (len > 0) {
- ret = qemu_chr_fe_write(scon->chr, buf, len);
- if (ret == 0) {
- /* a pty doesn't seem to be connected - no error */
- len = 0;
- } else if (ret == -EAGAIN || (ret > 0 && ret < len)) {
- len -= ret;
- buf_offset += ret;
- } else {
- len = 0;
- }
- }
-
- return ret;
-}
-
-static int process_mdb(SCLPEvent *event, MDBO *mdbo)
-{
- int rc;
- int len;
- uint8_t buffer[SIZE_BUFFER];
-
- len = be16_to_cpu(mdbo->length);
- len -= sizeof(mdbo->length) + sizeof(mdbo->type)
- + sizeof(mdbo->mto.line_type_flags)
- + sizeof(mdbo->mto.alarm_control)
- + sizeof(mdbo->mto._reserved);
-
- assert(len <= SIZE_BUFFER);
-
- /* convert EBCDIC SCLP contents to ASCII console message */
- ascii_put(buffer, mdbo->mto.message, len);
- rc = write_console_data(event, (uint8_t *)NEWLINE, 1);
- if (rc < 0) {
- return rc;
- }
- return write_console_data(event, buffer, len);
-}
-
-static int write_event_data(SCLPEvent *event, EventBufferHeader *ebh)
-{
- int len;
- int written;
- int errors = 0;
- MDBO *mdbo;
- SclpMsg *data = (SclpMsg *) ebh;
- SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);
-
- len = be16_to_cpu(data->mdb.header.length);
- if (len < sizeof(data->mdb.header)) {
- return SCLP_RC_INCONSISTENT_LENGTHS;
- }
- len -= sizeof(data->mdb.header);
-
- /* first check message buffers */
- mdbo = data->mdb.mdbo;
- while (len > 0) {
- if (be16_to_cpu(mdbo->length) > len
- || be16_to_cpu(mdbo->length) == 0) {
- return SCLP_RC_INCONSISTENT_LENGTHS;
- }
- len -= be16_to_cpu(mdbo->length);
- mdbo = (void *) mdbo + be16_to_cpu(mdbo->length);
- }
-
- /* then execute */
- len = be16_to_cpu(data->mdb.header.length) - sizeof(data->mdb.header);
- mdbo = data->mdb.mdbo;
- while (len > 0) {
- switch (be16_to_cpu(mdbo->type)) {
- case MESSAGE_TEXT:
- /* message text object */
- written = process_mdb(event, mdbo);
- if (written < 0) {
- /* character layer error */
- errors++;
- }
- break;
- default: /* ignore */
- break;
- }
- len -= be16_to_cpu(mdbo->length);
- mdbo = (void *) mdbo + be16_to_cpu(mdbo->length);
- }
- if (errors) {
- scon->write_errors += errors;
- }
- data->header.flags = SCLP_EVENT_BUFFER_ACCEPTED;
-
- return SCLP_RC_NORMAL_COMPLETION;
-}
-
-/* functions for live migration */
-
-static const VMStateDescription vmstate_sclplmconsole = {
- .name = "sclplmconsole",
- .version_id = 0,
- .minimum_version_id = 0,
- .fields = (VMStateField[]) {
- VMSTATE_BOOL(event.event_pending, SCLPConsoleLM),
- VMSTATE_UINT32(write_errors, SCLPConsoleLM),
- VMSTATE_UINT32(length, SCLPConsoleLM),
- VMSTATE_UINT8_ARRAY(buf, SCLPConsoleLM, SIZE_CONSOLE_BUFFER),
- VMSTATE_END_OF_LIST()
- }
-};
-
-/* qemu object creation and initialization functions */
-
-/* tell character layer our call-back functions */
-
-static int console_init(SCLPEvent *event)
-{
- static bool console_available;
-
- SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);
-
- if (console_available) {
- error_report("Multiple line-mode operator consoles are not supported");
- return -1;
- }
- console_available = true;
-
- if (scon->chr) {
- qemu_chr_add_handlers(scon->chr, chr_can_read, chr_read, NULL, scon);
- }
-
- return 0;
-}
-
-static int console_exit(SCLPEvent *event)
-{
- return 0;
-}
-
-static void console_reset(DeviceState *dev)
-{
- SCLPEvent *event = SCLP_EVENT(dev);
- SCLPConsoleLM *scon = DO_UPCAST(SCLPConsoleLM, event, event);
-
- event->event_pending = false;
- scon->length = 0;
- scon->write_errors = 0;
-}
-
-static Property console_properties[] = {
- DEFINE_PROP_CHR("chardev", SCLPConsoleLM, chr),
- DEFINE_PROP_UINT32("write_errors", SCLPConsoleLM, write_errors, 0),
- DEFINE_PROP_BOOL("echo", SCLPConsoleLM, echo, true),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void console_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SCLPEventClass *ec = SCLP_EVENT_CLASS(klass);
-
- dc->props = console_properties;
- dc->reset = console_reset;
- dc->vmsd = &vmstate_sclplmconsole;
- ec->init = console_init;
- ec->exit = console_exit;
- ec->get_send_mask = send_mask;
- ec->get_receive_mask = receive_mask;
- ec->can_handle_event = can_handle_event;
- ec->read_event_data = read_event_data;
- ec->write_event_data = write_event_data;
- set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
-}
-
-static const TypeInfo sclp_console_info = {
- .name = "sclplmconsole",
- .parent = TYPE_SCLP_EVENT,
- .instance_size = sizeof(SCLPConsoleLM),
- .class_init = console_class_init,
- .class_size = sizeof(SCLPEventClass),
-};
-
-static void register_types(void)
-{
- type_register_static(&sclp_console_info);
-}
-
-type_init(register_types)