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domains.c
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/*
* Copyright (c) 2014 Citrix Systems, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "project.h"
#define DOMAIN_ACTIVE_ADAPTER_NODE "display/activeAdapter"
extern struct timeval global_last_input_event;
static struct domain domains[NDOMAIN_MAX];
static xc_interface *xc_handle = NULL;
static bool destroy_in_fork = false;
void domain_print(const struct domain *d)
{
if (!d->initialised)
info ("[not initialised]");
else
info("dom%u<->slot-%u, "
"%sconnected dmbus-client, "
"is %sPV, is %spvm, is %sin s3, "
"ABS %sable, "
"desktop:%dx%d & relative:%dx%d, %d active adapters.",
d->domid, d->slot,
d->client ? "" : "dis",
d->is_pv_domain ? "" : "not ",
d->is_pvm ? "" : "not ",
d->is_in_s3 ? "" : "not ",
d->abs_enabled ? "en" : "dis",
d->desktop_xres, d->desktop_yres,
d->rel_x_mult, d->rel_y_mult,
d->num_active_adapters);
}
void domains_print(void)
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i)
domain_print(&domains[i]);
}
void iterate_domains(void (*callback)(struct domain *,void*), void* opaque)
{
int i;
for (i = 0; i < NDOMAIN_MAX; i++)
{
if (domains[i].initialised)
callback(&domains[i], opaque);
}
}
void check_diverts_for_the_dead(struct domain* d)
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i)
{
if (domains[i].divert_info != NULL)
divert_domain_gone(domains[i].divert_info, d);
}
}
int domains_count(void)
{
int i, n = 0;
for (i = 0; i < NDOMAIN_MAX; i++)
if (domains[i].initialised)
n++;
return n;
}
void
domain_set_slot(struct domain *d, int slot)
{
d->slot = slot;
xenstore_dom_write_int(d->domid, d->slot, "switcher/slot");
}
static struct domain *empty_domain()
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i)
if (!domains[i].initialised)
return &domains[i];
return NULL;
}
struct domain *domain_with_domid(int domid)
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i) {
if (domains[i].initialised &&
domains[i].domid == domid)
return &domains[i];
}
return NULL;
}
struct domain * domain_with_slot(int slot)
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i) {
if (domains[i].initialised &&
domains[i].slot == slot)
return &domains[i];
}
return NULL;
}
struct domain * domain_with_slot_and_not_domid(int slot, int domid)
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i) {
if (domains[i].initialised &&
domains[i].slot == slot &&
domains[i].domid != domid)
return &domains[i];
}
return NULL;
}
struct domain *domain_with_uuid(const char *uuid)
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i) {
if (domains[i].initialised &&
domains[i].uuid &&
!strcmp(domains[i].uuid, uuid))
return &domains[i];
}
return NULL;
}
struct domain * domain_uivm(void)
{
return domain_with_slot(0);
}
struct domain * domain_pvm(void)
{
int i;
for (i = 0; i < NDOMAIN_MAX; ++i) {
if (domains[i].initialised &&
domains[i].is_pvm)
return &domains[i];
}
return NULL;
}
static void reset_prev_keyb_domain(struct domain *d)
{
int i = 0;
if ((d == NULL) || (d->domid == -1))
return;
for (i = 0; i < NDOMAIN_MAX; i++)
{
if (domains[i].initialised && (domains[i].prev_keyb_domid == d->domid))
{
info("reset previous keyboard domain for domain %d\n", domains[i].domid);
domains[i].prev_keyb_domain_ptr = NULL;
domains[i].prev_keyb_domid = -1;
}
}
}
int domain_cant_print_screen(struct domain *d)
{
char tmp[1024];
char path[1024];
int rc = 0;
if (d)
{
sprintf(path, "/vm/%s/policies/print-screen-disallowed", d->uuid);
rc = db_read(tmp, 1024, path) && strcmp(tmp, "true") == 0;
info("print-screen path:%s value:%s disallow:%d", path, tmp, rc);
}
return rc;
}
static char**
domain_get_whitelist_drivers()
{
static char *driver[64] = { 0 };
static int driver_read = 0;
char buf[256] = { 0 }, *beg, *end;
unsigned int dri = 0;
if (driver_read)
return driver;
if (!db_read(buf, sizeof (buf), "/display-driver-whitelist")) {
warning("error reading display driver whitelist!");
return NULL;
}
beg = buf;
end = strchr(beg, ',');
while (*beg && dri < sizeof (driver)-1) {
int sz =
(end != NULL)
? (end-beg)
: (int)strlen(beg);
if (sz > 0) {
driver[dri] = strndup(beg, sz);
++dri;
}
if (!end)
break;
else {
beg = end + 1;
end = strchr(beg, ',');
}
}
driver[dri] = NULL;
driver_read = 1;
dri = 0;
while (driver[dri]) {
info("display driver whitelist: %d = %s", dri, driver[dri]);
++dri;
}
return driver;
}
static void
domain_active_adapter_node_watch(const char *path, void *opaque)
{
struct domain *d = opaque;
char *buff = NULL;
int i, disabled_surface = 0;
char **whitelist_drivers = NULL;
buff = xenstore_dom_read(d->domid, "switcher/have_gpu");
if (buff && strlen(buff) && strtol(buff, NULL, 0) == 1)
goto out;
whitelist_drivers = domain_get_whitelist_drivers();
buff = xenstore_read("%s", path);
if (!buff || strlen(buff) == 0)
goto out;
for (i = 0; whitelist_drivers[i]; ++i)
{
if (strcasestr(buff, whitelist_drivers[i]))
break;
}
if (whitelist_drivers[i] == NULL)
{
/* Only disable the surface if it's not handled as a surfman VGPU
* Take care of calling surfman only one */
if (d->vgpu_enabled == -1)
com_citrix_xenclient_surfman_has_vgpu_(xcbus_conn, SURFMAN_SERVICE,
SURFMAN_PATH, d->domid,
&d->vgpu_enabled);
if (!d->vgpu_enabled)
disabled_surface = 1;
}
if (d->disabled_surface != disabled_surface)
{
d->disabled_surface = disabled_surface;
if (d->disabled_surface)
{
/* Write "" to xenstore so the blanker will pic the best
* resolution (nvidia pass through scenario). */
xenstore_dom_write(d->domid, "", "switcher/display_size");
}
switcher_switch_graphic(disabled_surface ? domain_uivm() : 0, 0);
}
out:
free(buff);
}
/*
* The blanker in the VM will write the number of adapters of the VM
* to the display/activeAdapter node.
* Then, we set a watch on each of this adapters
*/
static void
domain_active_adapter_watch(const char *path, void *opaque)
{
struct domain *d = opaque;
char *buff = NULL, *endptr, node_name[33];
long int val = 0;
int i;
buff = xenstore_dom_read(d->domid, DOMAIN_ACTIVE_ADAPTER_NODE);
if (!buff || strlen(buff) == 0)
{
info("No active adapter node for domain %d", d->domid);
return;
}
val = strtol(buff, &endptr, 10);
// no active adapters for this domain yet
if (endptr == buff)
return;
// graphics driver unloading for a SVM with a secondary GPU
if (0 == val && d->has_secondary_gpu)
switcher_switch_graphic(d, 0);
info("domain %d has %d active adapter(s)", d->domid, val);
d->num_active_adapters = val;
for (i = 0; i < val; ++i)
{
sprintf(node_name, "%s/%d", DOMAIN_ACTIVE_ADAPTER_NODE, i);
info ("watching node %s\n", node_name);
if (!xenstore_dom_watch(d->domid, domain_active_adapter_node_watch, d, "%s", node_name))
warning("failed to install xenstore watch! %s", node_name);
}
}
static void domain_surface_disabled_detect_init(struct domain *d)
{
char *buff = NULL;
char perm_buff[16];
d->vgpu_enabled = -1;
// create node only if it does not exist yet
buff = xenstore_dom_read(d->domid, DOMAIN_ACTIVE_ADAPTER_NODE);
if (!buff)
{
sprintf(perm_buff, "n0 b%d", d->domid);
// apparently the lib requires the permissions to be separated by 0
perm_buff[2] = 0;
xenstore_dom_write(d->domid, "", DOMAIN_ACTIVE_ADAPTER_NODE);
xenstore_dom_chmod(d->domid, perm_buff, 2, DOMAIN_ACTIVE_ADAPTER_NODE);
}
else
free(buff);
if (!xenstore_dom_watch(d->domid, domain_active_adapter_watch, d, DOMAIN_ACTIVE_ADAPTER_NODE))
warning("failed to install xenstore watch! %s", DOMAIN_ACTIVE_ADAPTER_NODE);
}
static void release_xs_watches(struct domain *d)
{
int i;
xenstore_dom_watch(d->domid, NULL, NULL, DOMAIN_ACTIVE_ADAPTER_NODE);
/* arbitrary assumption of maximum of 8 active adapters per domain */
for (i = 0; i < d->num_active_adapters; ++i) {
char node[256];
snprintf(node, sizeof(node), "%s/%d", DOMAIN_ACTIVE_ADAPTER_NODE, i);
xenstore_dom_watch(d->domid, NULL, NULL, "%s", node);
}
xenstore_dom_watch(d->domid, NULL, NULL, "power-state");
xenstore_dom_watch(d->domid, NULL, NULL, "switcher/command");
xenstore_dom_watch(d->domid, NULL, NULL, "attr/desktopDimensions");
}
/**
* FIXME: It's really ugly but I have no solution ...
* if dmbus_disconnect_client is called to release fd
**/
void domain_gone(struct domain *d)
{
xc_dominfo_t info;
int ret;
if (!d)
return;
if (!destroy_in_fork)
info("cleaning up domain %d",d->domid);
else
info ("cleaning up in fork domain %d", d->domid);
if (d->vkbd_backend) {
xen_vkbd_backend_release(d);
}
release_xs_watches(d);
if (d->is_pvm && d->sstate != 0)
focus_domain_gone(d);
if (!destroy_in_fork)
reset_prev_keyb_domain(d);
free(d->uuid);
destroy_divert_info(&d->divert_info);
d->client = NULL;
d->initialised = false;
d->slot = -1;
d->is_pvm = 0;
d->prev_keyb_domain_ptr = NULL;
d->prev_keyb_domid = -1;
if (!destroy_in_fork)
{
input_domain_gone(d);
switcher_domain_gone(d);
}
check_diverts_for_the_dead(d);
}
#if 0
static void switcher_led_timer(void *opaque)
{
static struct timer_t *t = NULL;
struct timeval tv;
static int onoff = 0;
opaque = opaque;
if (onoff == 1 && (!mouse_grab_domain || !keyboard_grab_domain ||
mouse_grab_domain == keyboard_grab_domain))
{
if (t)
{
free_timer(t);
t = NULL;
}
return;
}
input_leds(onoff);
onoff = !onoff;
if (t == NULL)
t = set_new_timer(switcher_led_timer, NULL);
gettimeofday(&tv, NULL);
tv.tv_usec += 500 * 1000;
if (tv.tv_usec > 1000000) {
tv.tv_usec -= 1000000;
tv.tv_sec++;
}
set_timer(t, &tv);
}
#endif
static void domain_power_state(const char *path, void *opaque)
{
struct domain *d = opaque;
char *tmp = 0;
int state = 0;
if (!d)
{
error("No domain in switcher_power_state!\n");
return;
}
tmp = xenstore_read("%s", path);
if (!tmp || strlen(tmp) == 0) {
free(tmp);
return;
}
state = strtol(tmp, NULL, 10);
free(tmp);
info("domain id=%d power-state now %d",d->domid,state);
if (state == 3)
{
info("domain id=%d entered s3",d->domid);
d->is_in_s3 = 1;
gettimeofday(&d->time_of_s3, NULL);
/* If a domain goes to sleep, then reset its previous keyboard domain
so that on wakeup, the domain itself will have the keyboard. */
info("reset previous keyboard domain for domain %d\n", d->domid);
d->prev_keyb_domain_ptr = NULL;
d->prev_keyb_domid = -1;
/* If a domain goes to sleep, then reset the previous keyboard domain
for all domains that have given the keyboard to this domain. */
reset_prev_keyb_domain(d);
switcher_s3(d);
}
}
int get_idle_time()
{
struct timeval now;
int i, latest_input_activity=0, sleeping_vm_count=0, guest_vm_count=0, uivm_domid = -1;
struct domain *uivm = domain_uivm();
if (uivm != NULL)
uivm_domid = uivm->domid;
/* Calculate latest_input_activity considering all domains except uivm */
for (i = 0; i < NDOMAIN_MAX; i++)
{
if (domains[i].initialised && (domains[i].domid != uivm_domid))
{
guest_vm_count++;
if(domains[i].is_in_s3)
{
domains[i].last_input_event = domains[i].time_of_s3;
sleeping_vm_count++;
}
latest_input_activity = MAX(latest_input_activity,domains[i].last_input_event.tv_sec);
}
}
/* Check if all guest vms are asleep or only the uivm is running. */
if (sleeping_vm_count == guest_vm_count)
{
/* Dont crash if there is no uivm running. */
if (uivm != NULL)
latest_input_activity = MAX(latest_input_activity,uivm->last_input_event.tv_sec);
gettimeofday(&now,NULL);
return (now.tv_sec - latest_input_activity);
}
else
return 0;
}
int get_last_input_time()
{
struct timeval now;
gettimeofday(&now,NULL);
return (now.tv_sec - global_last_input_event.tv_sec);
}
#if 0
static void domain_slot_watch(const char *path, void *opaque)
{
struct domain *d = opaque;
struct domain *d_slot;
int slot;
char *tmp;
path = path;
if (!(tmp = xenstore_dom_read(d->domid, "switcher/slot")))
return;
slot = strtol(tmp, NULL, 10);
free(tmp);
if ((d_slot = domain_with_slot(slot))
{
error("There is already a domain on this slot, %d\n", d_slot->domid);
return;
}
d->slot = slot;
info("Domain %d is on slot %d\n", d->domid, slot);
}
#endif
static void domain_command(const char *path, void *opaque)
{
struct domain *d = opaque;
char *tmp;
int slot;
int domid;
tmp = xenstore_read("%s", path);
if (!tmp)
return;
if (!*tmp) {
free(tmp);
return;
}
info("Command \"%s\", domid %d\n", tmp, d->domid);
if (strcmp(tmp, "switch") == 0)
{
switcher_switch(d, 0, 0);
}
else if (sscanf(tmp, "switch slot %d", &slot) == 1)
{
struct domain *s = domain_with_slot(slot);
if (!s)
{
error("slot %d doesn't exist", slot);
return;
}
info("try to switch to slot %d", slot);
switcher_switch(s, 0, 0);
}
else if (sscanf(tmp, "switch domid %d", &domid) == 1)
{
struct domain *s = domain_with_domid(domid);
if (!s)
{
error("domain %d doesn't exist", domid);
return;
}
switcher_switch(s, 0, 0);
}
else if (strcmp("keyboard take", tmp) == 0)
{
input_give_keyboard(d);
}
else if (sscanf(tmp, "keyboard take %d", &domid) == 1)
{
struct domain *src_domain = domain_with_domid(domid);
if (!src_domain)
{
error("domain %d doesn't exist", domid);
return;
}
input_give_keyboard_from_domain(src_domain, d);
}
else if (strcmp("keyboard release", tmp) == 0)
{
input_return_keyboard(d);
}
else if (sscanf(tmp, "keyboard release %d", &domid) == 1)
{
struct domain *dest_domain = domain_with_domid(domid);
if (!dest_domain)
{
error("domain %d doesn't exist", domid);
return;
}
input_return_keyboard_to_domain(dest_domain, d);
}
xenstore_write("", "%s", path);
free(tmp);
}
void
domain_read_uuid(struct domain *d)
{
char *tmp;
if (!(tmp = xenstore_dom_read(d->domid, "vm")))
return;
d->uuid = xenstore_read("%s/uuid", tmp);
free(tmp);
}
static void
domain_read_is_pv_domain(struct domain *d)
{
xc_dominfo_t info;
int ret;
d->is_pv_domain = 0;
ret = xc_domain_getinfo(xc_handle, d->domid, 1, &info);
if (ret != 1) {
warning("xc_domain_getinfo() failed (%s).", strerror(errno));
return;
}
if (info.domid != (uint32_t) d->domid) {
warning("xc_domain_getinfo() reports a different domid (input:%d vs getinfo:%d).", d->domid, info.domid);
return;
}
/* For input-daemon, PVHv2 and PV guests are the same (vkbd, no controller emulation).
* This second test is the only way we have on 4.12 to differenciate
* through xc_domain_getinfo between HVM and PVHv2.
* Also, it is true on x86 only, LAPIC emulation is hard set by libxl
* (libxl_x86.c) and PVHv2 can only request LAPIC emulation, so no other
* flag can be set (xen/arch/x86/domain.c:arch_domain_create). */
d->is_pv_domain =
!info.hvm
|| (info.hvm && (info.arch_config.emulation_flags == XEN_X86_EMU_LAPIC));
}
static void
domain_read_has_secondary_gpu(struct domain *d)
{
char gpu_db_str[128];
char gpu;
int rc = 0;
d->has_secondary_gpu = 0;
if (d->is_pvm)
return;
sprintf(gpu_db_str, "/vm/%s/gpu", d->uuid);
rc = db_read(&gpu, 1, gpu_db_str);
if (rc != TRUE)
return;
d->has_secondary_gpu = (gpu != 0);
}
static int
domain_read_slot(struct domain *d)
{
char slot_str[10];
char path[128];
int rc = 0;
sprintf(path, "/vm/%s/slot", d->uuid);
rc = db_read(slot_str, 1, path);
if (rc != TRUE)
return -1;
return strtol(slot_str, NULL, 10);
}
int add_domainstart_callback(void (*callback)(struct domain *))
{
struct callbacklist* newitem;
newitem = (struct callbacklist*) malloc(sizeof(struct callbacklist));
if (newitem)
{
newitem->next=domainstart_callback;
newitem->callback=callback;
domainstart_callback=newitem;
return 0;
}
return -1;
}
static void domain_calculate_abs_scaling(const char *path, void *opaque)
{
struct domain *d = opaque;
char *buff = NULL;
int xres = 0, yres = 0;
if (d == NULL || path == NULL)
return;
d->rel_x_mult = MAX_MOUSE_ABS_X / DEFAULT_RESOLUTION_X;
d->rel_y_mult = MAX_MOUSE_ABS_Y / DEFAULT_RESOLUTION_Y;
buff = xenstore_read("%s", path);
if (!buff || strlen(buff) == 0)
{
info("No desktopDimensions node for domain %d", d->domid);
/* These might have been previously set, so need to clear the value. */
d->desktop_xres = d->desktop_yres = 0;
free(buff);
return;
}
if ((sscanf(buff, "%d %d", &xres, &yres) != 2) || (xres <= 0) || (yres <= 0))
{
info("Invalid desktopDimensions node for domain %d, value is %s", d->domid, buff);
/* These might have been previously set, so need to clear the value. */
d->desktop_xres = d->desktop_yres = 0;
free(buff);
return;
}
info("Found valid desktopDimensions node for domain %d, xres is %d, yres is %d", d->domid, xres, yres);
free(buff);
d->rel_x_mult = (double) MAX_MOUSE_ABS_X / (double) xres;
d->rel_y_mult = (double) MAX_MOUSE_ABS_Y / (double) yres;
/* If the desktop dimensions have changed, need to adjust the mouse position. */
input_domain_handle_resolution_change(d, xres, yres);
d->desktop_xres = xres;
d->desktop_yres = yres;
}
/**
* Returns a non-zero value if this slot is occuped by a left-over domain.
*
*/
static int slot_occupied_by_dead_domain(int slot, int domid)
{
int dying, ret;
xc_dominfo_t info;
char * reported_domid;
struct domain * d;
//If we've been passed the special slot -1, vacuously return false;
//this is an indication that a domain has no real slot (and thus can't
//occupy a slot).
if(slot == -1) {
return 0;
}
d = domain_with_slot_and_not_domid(slot, domid);
//Some other domain, likely dead, occupies this slot, deal with it
if (d) {
ret = xc_domain_getinfo(xc_handle, d->domid, 1, &info);
//Xen couldn't find the domain or the domain info it returned is not
//the domain we asked for, so it has NO idea about it.
if(ret != 1 || (int)info.domid != d->domid) {
return 1;
}
}
d = domain_with_slot(slot);
//If no domain occupies this slot, it can't be occupied by a dead one.
if(!d) {
return 0;
}
//Ask xen for information about the domain...
ret = xc_domain_getinfo(xc_handle, d->domid, 1, &info);
//If the domain doesn't exist, according to Xen, we've stumbled
//upon a left-over dead record!
if(ret != 1) {
return 1;
}
//Otherwise, we'll have to employ an ugly heuristic to see if
//the toolstack has tried (and failed!) to destroy the VM.
//
//If you see a way to improve this heuristic, by all means, do!
//Current heuristic:
//
//- If the domain is marked as /dying/, we've started the process
// of killing it; and
//- If the domain's record has been purged from the Xenstore, its
// cleanup is either done or no longer possible.
//
//If both conditions are met, we've found a dead-in-all-but-name-VM.
//
reported_domid = xenstore_dom_read(d->domid, "domid");
//If we've obtained a domid from the xenstore, this domain still has
//a xenstore record, and likely is not yet dead.
if(reported_domid) {
free(reported_domid);
return 0;
}
//Otherwise, we'll return the dying status-- as this will tell us
//if the domain is all-but-dead, as defined above.
return info.dying;
}
static void switcher_domid(struct domain *d, uint32_t domid)
{
char perm[8];
char path[64];
char perms[128];
char *tmp = 0;
int stubdom_domid;
int slot;
struct domain *d_pvm;
if (domain_with_domid(domid))
{
error("domain %d already exists", domid);
return;
}
d->domid = domid;
domain_read_uuid(d);
domain_read_is_pv_domain(d);
slot = domain_read_slot(d);
// Ensures that no "zombie" domains are taking up valuable switcher slots.
// Ideally, this shouldn't be necessary-- but in development environments
// it's possible for interesting things to happen (e.g. for a developer to
// destroy a stub-domain without giving us notice of the termination.)
// This safeguard function isn't strictly neccessary, but it's lightweight
// and prevents some awful behavior (including huge delays) if developers do
// manage to do fun things like kernel panic their stubdomains.
if(slot_occupied_by_dead_domain(slot, domid))
{
warning("slot %d is held by a dead domain; cleaning up", slot);
domain_gone(domain_with_slot_and_not_domid(slot, domid));
}
if (domain_with_slot(slot) || (slot == -1))
{
error("slot %d already taken (wanted by domain %d)",slot,domid);
return;
}
d->slot = slot;
info("New domain %d (slot %d)", domid, slot);
/* init xenstore nodes and permissions for midori secure window and status report */
if (slot == 0)
{
xenstore_dom_write(domid, "http://1.0.0.0/auth.html", "login/url");
xenstore_dom_write(domid, "3", "login/state");
sprintf(perm, "n%d", domid);
sprintf(path, "/local/domain/%d/report/state", domid);
xenstore_write_int(3, "%s", path);
xenstore_chmod(perm, 1, "%s", path);
sprintf(path, "/local/domain/%d/report/url", domid);
xenstore_write("http://1.0.0.0/create_report.html", "%s", path);
xenstore_chmod (perm, 1, "%s", path);
}
xenstore_dom_write(domid, "", "switcher/command");
sprintf(perms, "r%d", domid);
xenstore_dom_chmod(domid, perms, 1, "switcher/command");
if (!xenstore_dom_watch(domid, domain_command, d, "switcher/command"))
warning("failed to install xenstore watch! switcher/command");
d->rel_x_mult = MAX_MOUSE_ABS_X / DEFAULT_RESOLUTION_X;
d->rel_y_mult = MAX_MOUSE_ABS_Y / DEFAULT_RESOLUTION_Y;
d->desktop_xres = d->desktop_yres = 0;
if (!xenstore_dom_watch(d->domid, domain_calculate_abs_scaling, d, "attr/desktopDimensions"))
warning("failed to install xenstore watch! attr/desktopDimensions");
d->is_pvm = 0;
d->keyboard_led_code = 0;
xenstore_dom_write_int(d->domid, 0, "switcher/have_gpu");
if (!xenstore_dom_watch(domid, domain_power_state, d, "power-state"))
warning("failed to install xenstore watch! power-state");
domain_power_state("power-state",d);
d_pvm = domain_pvm();
domain_surface_disabled_detect_init(d);
xen_vkbd_backend_create(d);
domain_read_has_secondary_gpu(d);
domain_mouse_switch_config(d);
focus_update_domain(d);
/* call our callbacks*/
struct callbacklist* c = domainstart_callback;
while (c)
{
c->callback(d);
c = c->next;
}
/* we are ready to receive switch commands for this domain */
xenstore_dom_write(domid, "true", "switcher/ready");
}
void handle_switcher_abs(void *priv, struct msg_switcher_abs *msg, size_t msglen)
{
struct domain *d = priv;
d->abs_enabled = msg->enabled;
info("PV mouse driver reports abs support is %s for domid:%d", (d->abs_enabled)?"on":"off",d->domid);
}
void switcher_pvm_domid(struct domain *d, uint32_t domid)
{
switcher_domid(d, domid);
info("Domain %d is a pvm", d->domid);
d->is_pvm = 1;
xenstore_dom_write_int(d->domid, 1, "switcher/have_gpu");
focus_update_domain(d);