static int
libxlCapsInitHost(libxl_ctx *ctx, virCapsPtr caps)
{
libxl_physinfo phy_info;
int host_pae;
if (libxl_get_physinfo(ctx, &phy_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to get node physical info from libxenlight"));
return -1;
}
/* hw_caps is an array of 32-bit words whose meaning is listed in
* xen-unstable.hg/xen/include/asm-x86/cpufeature.h. Each feature
* is defined in the form X*32+Y, corresponding to the Y'th bit in
* the X'th 32-bit word of hw_cap.
*/
host_pae = phy_info.hw_cap[0] & LIBXL_X86_FEATURE_PAE_MASK;
if (host_pae &&
virCapabilitiesAddHostFeature(caps, "pae") < 0)
return -1;
return 0;
}
static int libxl__fill_dom0_memory_info(libxl__gc *gc, uint64_t *target_memkb,
uint64_t *max_memkb)
{
int rc;
libxl_dominfo info;
libxl_physinfo physinfo;
char *target = NULL, *staticmax = NULL, *endptr = NULL;
char *target_path = "/local/domain/0/memory/target";
char *max_path = "/local/domain/0/memory/static-max";
xs_transaction_t t;
libxl_ctx *ctx = libxl__gc_owner(gc);
libxl_dominfo_init(&info);
retry_transaction:
t = xs_transaction_start(ctx->xsh);
target = libxl__xs_read(gc, t, target_path);
staticmax = libxl__xs_read(gc, t, max_path);
if (target && staticmax) {
rc = 0;
goto out;
}
if (target) {
*target_memkb = strtoull(target, &endptr, 10);
if (*endptr != '\0') {
LOGED(ERROR, 0, "Invalid memory target %s from %s\n", target,
target_path);
rc = ERROR_FAIL;
goto out;
}
}
if (staticmax) {
*max_memkb = strtoull(staticmax, &endptr, 10);
if (*endptr != '\0') {
LOGED(ERROR, 0, "Invalid memory static-max %s from %s\n",
staticmax,
max_path);
rc = ERROR_FAIL;
goto out;
}
}
libxl_dominfo_dispose(&info);
libxl_dominfo_init(&info);
rc = libxl_domain_info(ctx, &info, 0);
if (rc < 0)
goto out;
rc = libxl_get_physinfo(ctx, &physinfo);
if (rc < 0)
goto out;
if (target == NULL) {
libxl__xs_printf(gc, t, target_path, "%"PRIu64, info.current_memkb);
*target_memkb = info.current_memkb;
}
if (staticmax == NULL) {
libxl__xs_printf(gc, t, max_path, "%"PRIu64, info.max_memkb);
*max_memkb = info.max_memkb;
}
rc = 0;
out:
if (!xs_transaction_end(ctx->xsh, t, 0)) {
if (errno == EAGAIN)
goto retry_transaction;
else
rc = ERROR_FAIL;
}
libxl_dominfo_dispose(&info);
return rc;
}