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-rw-r--r--hw/9pfs/xen-9p-backend.c7
-rw-r--r--hw/block/dataplane/xen-block.c1
-rw-r--r--hw/char/xen_console.c2
-rw-r--r--hw/net/xen_nic.c13
-rw-r--r--hw/usb/xen-usb.c21
-rw-r--r--hw/xen/xen-bus.c4
-rw-r--r--hw/xen/xen-legacy-backend.c4
-rw-r--r--hw/xen/xen-operations.c9
8 files changed, 42 insertions, 19 deletions
diff --git a/hw/9pfs/xen-9p-backend.c b/hw/9pfs/xen-9p-backend.c
index 864bdaf..d8bb0e8 100644
--- a/hw/9pfs/xen-9p-backend.c
+++ b/hw/9pfs/xen-9p-backend.c
@@ -359,12 +359,13 @@ static int xen_9pfs_free(struct XenLegacyDevice *xendev)
if (xen_9pdev->rings[i].data != NULL) {
xen_be_unmap_grant_refs(&xen_9pdev->xendev,
xen_9pdev->rings[i].data,
+ xen_9pdev->rings[i].intf->ref,
(1 << xen_9pdev->rings[i].ring_order));
}
if (xen_9pdev->rings[i].intf != NULL) {
- xen_be_unmap_grant_refs(&xen_9pdev->xendev,
- xen_9pdev->rings[i].intf,
- 1);
+ xen_be_unmap_grant_ref(&xen_9pdev->xendev,
+ xen_9pdev->rings[i].intf,
+ xen_9pdev->rings[i].ref);
}
if (xen_9pdev->rings[i].bh != NULL) {
qemu_bh_delete(xen_9pdev->rings[i].bh);
diff --git a/hw/block/dataplane/xen-block.c b/hw/block/dataplane/xen-block.c
index 2785b9e..e55b713 100644
--- a/hw/block/dataplane/xen-block.c
+++ b/hw/block/dataplane/xen-block.c
@@ -705,6 +705,7 @@ void xen_block_dataplane_stop(XenBlockDataPlane *dataplane)
Error *local_err = NULL;
xen_device_unmap_grant_refs(xendev, dataplane->sring,
+ dataplane->ring_ref,
dataplane->nr_ring_ref, &local_err);
dataplane->sring = NULL;
diff --git a/hw/char/xen_console.c b/hw/char/xen_console.c
index 63153df..19ad6c9 100644
--- a/hw/char/xen_console.c
+++ b/hw/char/xen_console.c
@@ -271,7 +271,7 @@ static void con_disconnect(struct XenLegacyDevice *xendev)
if (!xendev->dev) {
xenforeignmemory_unmap(xen_fmem, con->sring, 1);
} else {
- xen_be_unmap_grant_ref(xendev, con->sring);
+ xen_be_unmap_grant_ref(xendev, con->sring, con->ring_ref);
}
con->sring = NULL;
}
diff --git a/hw/net/xen_nic.c b/hw/net/xen_nic.c
index 7d92c2d..166d037 100644
--- a/hw/net/xen_nic.c
+++ b/hw/net/xen_nic.c
@@ -181,7 +181,7 @@ static void net_tx_packets(struct XenNetDev *netdev)
qemu_send_packet(qemu_get_queue(netdev->nic),
page + txreq.offset, txreq.size);
}
- xen_be_unmap_grant_ref(&netdev->xendev, page);
+ xen_be_unmap_grant_ref(&netdev->xendev, page, txreq.gref);
net_tx_response(netdev, &txreq, NETIF_RSP_OKAY);
}
if (!netdev->tx_work) {
@@ -261,7 +261,7 @@ static ssize_t net_rx_packet(NetClientState *nc, const uint8_t *buf, size_t size
return -1;
}
memcpy(page + NET_IP_ALIGN, buf, size);
- xen_be_unmap_grant_ref(&netdev->xendev, page);
+ xen_be_unmap_grant_ref(&netdev->xendev, page, rxreq.gref);
net_rx_response(netdev, &rxreq, NETIF_RSP_OKAY, NET_IP_ALIGN, size, 0);
return size;
@@ -343,7 +343,8 @@ static int net_connect(struct XenLegacyDevice *xendev)
netdev->rx_ring_ref,
PROT_READ | PROT_WRITE);
if (!netdev->rxs) {
- xen_be_unmap_grant_ref(&netdev->xendev, netdev->txs);
+ xen_be_unmap_grant_ref(&netdev->xendev, netdev->txs,
+ netdev->tx_ring_ref);
netdev->txs = NULL;
return -1;
}
@@ -368,11 +369,13 @@ static void net_disconnect(struct XenLegacyDevice *xendev)
xen_pv_unbind_evtchn(&netdev->xendev);
if (netdev->txs) {
- xen_be_unmap_grant_ref(&netdev->xendev, netdev->txs);
+ xen_be_unmap_grant_ref(&netdev->xendev, netdev->txs,
+ netdev->tx_ring_ref);
netdev->txs = NULL;
}
if (netdev->rxs) {
- xen_be_unmap_grant_ref(&netdev->xendev, netdev->rxs);
+ xen_be_unmap_grant_ref(&netdev->xendev, netdev->rxs,
+ netdev->rx_ring_ref);
netdev->rxs = NULL;
}
}
diff --git a/hw/usb/xen-usb.c b/hw/usb/xen-usb.c
index 0f7369e..a770a64 100644
--- a/hw/usb/xen-usb.c
+++ b/hw/usb/xen-usb.c
@@ -101,6 +101,8 @@ struct usbback_hotplug {
struct usbback_info {
struct XenLegacyDevice xendev; /* must be first */
USBBus bus;
+ uint32_t urb_ring_ref;
+ uint32_t conn_ring_ref;
void *urb_sring;
void *conn_sring;
struct usbif_urb_back_ring urb_ring;
@@ -277,10 +279,11 @@ static int usbback_init_packet(struct usbback_req *usbback_req)
static void usbback_do_response(struct usbback_req *usbback_req, int32_t status,
int32_t actual_length, int32_t error_count)
{
+ uint32_t ref[USBIF_MAX_SEGMENTS_PER_REQUEST];
struct usbback_info *usbif;
struct usbif_urb_response *res;
struct XenLegacyDevice *xendev;
- unsigned int notify;
+ unsigned int notify, i;
usbif = usbback_req->usbif;
xendev = &usbif->xendev;
@@ -293,13 +296,19 @@ static void usbback_do_response(struct usbback_req *usbback_req, int32_t status,
}
if (usbback_req->buffer) {
- xen_be_unmap_grant_refs(xendev, usbback_req->buffer,
+ for (i = 0; i < usbback_req->nr_buffer_segs; i++) {
+ ref[i] = usbback_req->req.seg[i].gref;
+ }
+ xen_be_unmap_grant_refs(xendev, usbback_req->buffer, ref,
usbback_req->nr_buffer_segs);
usbback_req->buffer = NULL;
}
if (usbback_req->isoc_buffer) {
- xen_be_unmap_grant_refs(xendev, usbback_req->isoc_buffer,
+ for (i = 0; i < usbback_req->nr_extra_segs; i++) {
+ ref[i] = usbback_req->req.seg[i + usbback_req->req.nr_buffer_segs].gref;
+ }
+ xen_be_unmap_grant_refs(xendev, usbback_req->isoc_buffer, ref,
usbback_req->nr_extra_segs);
usbback_req->isoc_buffer = NULL;
}
@@ -832,11 +841,11 @@ static void usbback_disconnect(struct XenLegacyDevice *xendev)
xen_pv_unbind_evtchn(xendev);
if (usbif->urb_sring) {
- xen_be_unmap_grant_ref(xendev, usbif->urb_sring);
+ xen_be_unmap_grant_ref(xendev, usbif->urb_sring, usbif->urb_ring_ref);
usbif->urb_sring = NULL;
}
if (usbif->conn_sring) {
- xen_be_unmap_grant_ref(xendev, usbif->conn_sring);
+ xen_be_unmap_grant_ref(xendev, usbif->conn_sring, usbif->conn_ring_ref);
usbif->conn_sring = NULL;
}
@@ -889,6 +898,8 @@ static int usbback_connect(struct XenLegacyDevice *xendev)
return -1;
}
+ usbif->urb_ring_ref = urb_ring_ref;
+ usbif->conn_ring_ref = conn_ring_ref;
urb_sring = usbif->urb_sring;
conn_sring = usbif->conn_sring;
BACK_RING_INIT(&usbif->urb_ring, urb_sring, XC_PAGE_SIZE);
diff --git a/hw/xen/xen-bus.c b/hw/xen/xen-bus.c
index b247e86..aee6a8c 100644
--- a/hw/xen/xen-bus.c
+++ b/hw/xen/xen-bus.c
@@ -967,10 +967,10 @@ void *xen_device_map_grant_refs(XenDevice *xendev, uint32_t *refs,
return map;
}
-void xen_device_unmap_grant_refs(XenDevice *xendev, void *map,
+void xen_device_unmap_grant_refs(XenDevice *xendev, void *map, uint32_t *refs,
unsigned int nr_refs, Error **errp)
{
- if (qemu_xen_gnttab_unmap(xendev->xgth, map, nr_refs)) {
+ if (qemu_xen_gnttab_unmap(xendev->xgth, map, refs, nr_refs)) {
error_setg_errno(errp, errno, "xengnttab_unmap failed");
}
}
diff --git a/hw/xen/xen-legacy-backend.c b/hw/xen/xen-legacy-backend.c
index 1e9a28f..a48a25a 100644
--- a/hw/xen/xen-legacy-backend.c
+++ b/hw/xen/xen-legacy-backend.c
@@ -137,11 +137,11 @@ void *xen_be_map_grant_refs(struct XenLegacyDevice *xendev, uint32_t *refs,
}
void xen_be_unmap_grant_refs(struct XenLegacyDevice *xendev, void *ptr,
- unsigned int nr_refs)
+ uint32_t *refs, unsigned int nr_refs)
{
assert(xendev->ops->flags & DEVOPS_FLAG_NEED_GNTDEV);
- if (qemu_xen_gnttab_unmap(xendev->gnttabdev, ptr, nr_refs)) {
+ if (qemu_xen_gnttab_unmap(xendev->gnttabdev, ptr, refs, nr_refs)) {
xen_pv_printf(xendev, 0, "xengnttab_unmap failed: %s\n",
strerror(errno));
}
diff --git a/hw/xen/xen-operations.c b/hw/xen/xen-operations.c
index 2e74a28..c5956d2 100644
--- a/hw/xen/xen-operations.c
+++ b/hw/xen/xen-operations.c
@@ -200,6 +200,13 @@ static xengnttab_handle *libxengnttab_backend_open(void)
return xengnttab_open(NULL, 0);
}
+static int libxengnttab_backend_unmap(xengnttab_handle *xgt,
+ void *start_address, uint32_t *refs,
+ uint32_t count)
+{
+ return xengnttab_unmap(xgt, start_address, count);
+}
+
static struct gnttab_backend_ops libxengnttab_backend_ops = {
.features = XEN_GNTTAB_OP_FEATURE_MAP_MULTIPLE,
@@ -208,7 +215,7 @@ static struct gnttab_backend_ops libxengnttab_backend_ops = {
.grant_copy = libxengnttab_fallback_grant_copy,
.set_max_grants = xengnttab_set_max_grants,
.map_refs = xengnttab_map_domain_grant_refs,
- .unmap = xengnttab_unmap,
+ .unmap = libxengnttab_backend_unmap,
};
void setup_xen_backend_ops(void)
generated by cgit v1.1 at 2024-12-23 10:39:21 +0000