diff options
Diffstat (limited to 'qemu/hw/display/xenfb.c')
| -rw-r--r-- | qemu/hw/display/xenfb.c | 58 |
1 files changed, 24 insertions, 34 deletions
diff --git a/qemu/hw/display/xenfb.c b/qemu/hw/display/xenfb.c index 5e324ef62..9866dfda5 100644 --- a/qemu/hw/display/xenfb.c +++ b/qemu/hw/display/xenfb.c @@ -24,16 +24,8 @@ * with this program; if not, see <http://www.gnu.org/licenses/>. */ -#include <stdarg.h> -#include <stdlib.h> -#include <sys/types.h> -#include <fcntl.h> -#include <unistd.h> +#include "qemu/osdep.h" #include <sys/mman.h> -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <time.h> #include "hw/hw.h" #include "ui/console.h" @@ -95,23 +87,24 @@ struct XenFB { static int common_bind(struct common *c) { - uint64_t mfn; + uint64_t val; + xen_pfn_t mfn; - if (xenstore_read_fe_uint64(&c->xendev, "page-ref", &mfn) == -1) + if (xenstore_read_fe_uint64(&c->xendev, "page-ref", &val) == -1) return -1; - assert(mfn == (xen_pfn_t)mfn); + mfn = (xen_pfn_t)val; + assert(val == mfn); if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1) return -1; - c->page = xc_map_foreign_range(xen_xc, c->xendev.dom, - XC_PAGE_SIZE, - PROT_READ | PROT_WRITE, mfn); + c->page = xenforeignmemory_map(xen_fmem, c->xendev.dom, + PROT_READ | PROT_WRITE, 1, &mfn, NULL); if (c->page == NULL) return -1; xen_be_bind_evtchn(&c->xendev); - xen_be_printf(&c->xendev, 1, "ring mfn %"PRIx64", remote-port %d, local-port %d\n", + xen_be_printf(&c->xendev, 1, "ring mfn %"PRI_xen_pfn", remote-port %d, local-port %d\n", mfn, c->xendev.remote_port, c->xendev.local_port); return 0; @@ -121,7 +114,7 @@ static void common_unbind(struct common *c) { xen_be_unbind_evtchn(&c->xendev); if (c->page) { - munmap(c->page, XC_PAGE_SIZE); + xenforeignmemory_unmap(xen_fmem, c->page, 1); c->page = NULL; } } @@ -248,9 +241,7 @@ static int xenfb_send_motion(struct XenInput *xenfb, event.type = XENKBD_TYPE_MOTION; event.motion.rel_x = rel_x; event.motion.rel_y = rel_y; -#if __XEN_LATEST_INTERFACE_VERSION__ >= 0x00030207 event.motion.rel_z = rel_z; -#endif return xenfb_kbd_event(xenfb, &event); } @@ -265,12 +256,7 @@ static int xenfb_send_position(struct XenInput *xenfb, event.type = XENKBD_TYPE_POS; event.pos.abs_x = abs_x; event.pos.abs_y = abs_y; -#if __XEN_LATEST_INTERFACE_VERSION__ == 0x00030207 - event.pos.abs_z = z; -#endif -#if __XEN_LATEST_INTERFACE_VERSION__ >= 0x00030208 event.pos.rel_z = z; -#endif return xenfb_kbd_event(xenfb, &event); } @@ -494,15 +480,15 @@ static int xenfb_map_fb(struct XenFB *xenfb) fbmfns = g_malloc0(sizeof(xen_pfn_t) * xenfb->fbpages); xenfb_copy_mfns(mode, n_fbdirs, pgmfns, pd); - map = xc_map_foreign_pages(xen_xc, xenfb->c.xendev.dom, - PROT_READ, pgmfns, n_fbdirs); + map = xenforeignmemory_map(xen_fmem, xenfb->c.xendev.dom, + PROT_READ, n_fbdirs, pgmfns, NULL); if (map == NULL) goto out; xenfb_copy_mfns(mode, xenfb->fbpages, fbmfns, map); - munmap(map, n_fbdirs * XC_PAGE_SIZE); + xenforeignmemory_unmap(xen_fmem, map, n_fbdirs); - xenfb->pixels = xc_map_foreign_pages(xen_xc, xenfb->c.xendev.dom, - PROT_READ, fbmfns, xenfb->fbpages); + xenfb->pixels = xenforeignmemory_map(xen_fmem, xenfb->c.xendev.dom, + PROT_READ, xenfb->fbpages, fbmfns, NULL); if (xenfb->pixels == NULL) goto out; @@ -784,18 +770,21 @@ static void xenfb_invalidate(void *opaque) static void xenfb_handle_events(struct XenFB *xenfb) { - uint32_t prod, cons; + uint32_t prod, cons, out_cons; struct xenfb_page *page = xenfb->c.page; prod = page->out_prod; - if (prod == page->out_cons) - return; + out_cons = page->out_cons; + if (prod - out_cons > XENFB_OUT_RING_LEN) { + return; + } xen_rmb(); /* ensure we see ring contents up to prod */ - for (cons = page->out_cons; cons != prod; cons++) { + for (cons = out_cons; cons != prod; cons++) { union xenfb_out_event *event = &XENFB_OUT_RING_REF(page, cons); + uint8_t type = event->type; int x, y, w, h; - switch (event->type) { + switch (type) { case XENFB_TYPE_UPDATE: if (xenfb->up_count == UP_QUEUE) xenfb->up_fullscreen = 1; @@ -909,6 +898,7 @@ static void fb_disconnect(struct XenDevice *xendev) * Replacing the framebuffer with anonymous shared memory * instead. This releases the guest pages and keeps qemu happy. */ + xenforeignmemory_unmap(xen_fmem, fb->pixels, fb->fbpages); fb->pixels = mmap(fb->pixels, fb->fbpages * XC_PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0); |