search for: xc_gnttab_map_grant_ref

...mp; + (mknod(GNTTAB_DEV_NAME, S_IFCHR|0600, devnum) == 0) ) + goto reopen; + + PERROR("Could not open grant table interface"); + return -1; + } + + return fd; +} + +int xc_gnttab_close(int xcg_handle) +{ + return close(xcg_handle); +} + +void *xc_gnttab_map_grant_ref(int xcg_handle, + uint32_t domid, + uint32_t ref, + int prot) +{ + struct ioctl_gntdev_map_grant_ref map; + struct ioctl_gntdev_grant_ref op; + void *addr; + + op.domid = domid; + op.ref = ref; +...

...p(dom->interface, getpagesize()); + /* If using ring_ref and it has changed, remap */ + if (ring_ref != dom->ring_ref && dom->ring_ref != -1) + domain_unmap_interface(dom); + + if (!dom->interface && xcg_handle) { + /* Prefer using grant table */ + dom->interface = xc_gnttab_map_grant_ref(xcg_handle, + dom->domid, GNTTAB_RESERVED_CONSOLE, + PROT_READ|PROT_WRITE); + dom->ring_ref = -1; + } + if (!dom->interface) { + /* Fall back to xc_map_foreign_range */ dom->interface = xc_map_foreign_range( xc, dom->domid, getpagesize(), PROT_READ|PROT_WRITE, @@ -72...

...xcg_handle = xc_gnttab_open(); if(xcg_handle == -1) { printf("Open xcg_handle Error!\n"); return -1; } else printf("Open xcg_handle Success!\n"); void* start_address; start_address = xc_gnttab_map_grant_ref(xcg_handle, 0, 3,PROT_WRITE); if(start_address != NULL) { printf("mapping success!\n"); } else { printf("mapping errror!=n"); } xc_gnttab_close(xcg_handle); return 0; } =============...

Hi, I need to use the grant table mechanism, but I can''t find any example regarding how to do it. Could you please provide some examples? Thanks Carlo -- È molto più bello sapere qualcosa di tutto, che sapere tutto di una cosa. Blaise Pascal _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...p(dom->interface, getpagesize()); + /* If using ring_ref and it has changed, remap */ + if (ring_ref != dom->ring_ref && dom->ring_ref != -1) + domain_unmap_interface(dom); + + if (!dom->interface && xcg_handle) { + /* Prefer using grant table */ + dom->interface = xc_gnttab_map_grant_ref(xcg_handle, + dom->domid, GNTTAB_RESERVED_CONSOLE, + PROT_READ|PROT_WRITE); + dom->ring_ref = -1; + } + if (!dom->interface) { + /* Fall back to xc_map_foreign_range */ dom->interface = xc_map_foreign_range( xc, dom->domid, getpagesize(), PROT_READ|PROT_WRITE, @@ -72...

Hi all, this is the long awaited patch series to add xen device model support in qemu; the main author is Anthony Perard. Developing this series we tried to come up with the cleanest possible solution from the qemu point of view, limiting the amount of changes to common code as much as possible. The end result still requires a couple of hooks in piix_pci but overall the impact should be very

Changes from v3: - mini-os configuration files moved into stubdom/ - mini-os extra console support now a config option - Fewer #ifdefs - grant table setup uses hypercall bounce - Xenstore stub domain syslog support re-enabled Changes from v2: - configuration support added to mini-os build system - add mini-os support for conditionally compiling frontends, xenbus -