From: Marc-André Lureau <marcandre.lur...@redhat.com>
The terms 'guest' and 'peer' are used sometime interchangeably which may
be confusing. Instead, use 'peer' for the remote instances of ivshmem
clients, and 'guest' for the local VM.
Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
---
hw/misc/ivshmem.c | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index 6acdc56..b9c78cd 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -89,7 +89,7 @@ typedef struct IVShmemState {
int shm_fd; /* shared memory file descriptor */
Peer *peers;
- int nb_peers; /* how many guests we have space for */
+ int nb_peers; /* how many peers we have space for */
int vm_id;
uint32_t vectors;
@@ -387,9 +387,9 @@ static void ivshmem_del_eventfd(IVShmemState *s, int posn,
int i)
&s->peers[posn].eventfds[i]);
}
-static void close_guest_eventfds(IVShmemState *s, int posn)
+static void close_peer_eventfds(IVShmemState *s, int posn)
{
- int i, guest_curr_max;
+ int i, n;
if (!ivshmem_has_feature(s, IVSHMEM_IOEVENTFD)) {
return;
@@ -399,14 +399,14 @@ static void close_guest_eventfds(IVShmemState *s, int
posn)
return;
}
- guest_curr_max = s->peers[posn].nb_eventfds;
+ n = s->peers[posn].nb_eventfds;
memory_region_transaction_begin();
- for (i = 0; i < guest_curr_max; i++) {
+ for (i = 0; i < n; i++) {
ivshmem_del_eventfd(s, posn, i);
}
memory_region_transaction_commit();
- for (i = 0; i < guest_curr_max; i++) {
+ for (i = 0; i < n; i++) {
event_notifier_cleanup(&s->peers[posn].eventfds[i]);
}
@@ -415,7 +415,7 @@ static void close_guest_eventfds(IVShmemState *s, int posn)
}
/* this function increase the dynamic storage need to store data about other
- * guests */
+ * peers */
static int resize_peers(IVShmemState *s, int new_min_size)
{
@@ -432,7 +432,7 @@ static int resize_peers(IVShmemState *s, int new_min_size)
old_size = s->nb_peers;
s->nb_peers = new_min_size;
- IVSHMEM_DPRINTF("bumping storage to %d guests\n", s->nb_peers);
+ IVSHMEM_DPRINTF("bumping storage to %d peers\n", s->nb_peers);
s->peers = g_realloc(s->peers, s->nb_peers * sizeof(Peer));
@@ -503,7 +503,7 @@ static void ivshmem_read(void *opaque, const uint8_t *buf,
int size)
incoming_fd = qemu_chr_fe_get_msgfd(s->server_chr);
IVSHMEM_DPRINTF("posn is %ld, fd is %d\n", incoming_posn, incoming_fd);
- /* make sure we have enough space for this guest */
+ /* make sure we have enough space for this peer */
if (incoming_posn >= s->nb_peers) {
if (resize_peers(s, incoming_posn + 1) < 0) {
error_report("failed to resize peers array");
@@ -522,9 +522,9 @@ static void ivshmem_read(void *opaque, const uint8_t *buf,
int size)
/* receive our posn */
s->vm_id = incoming_posn;
} else {
- /* otherwise an fd == -1 means an existing guest has gone away */
+ /* otherwise an fd == -1 means an existing peer has gone away */
IVSHMEM_DPRINTF("posn %ld has gone away\n", incoming_posn);
- close_guest_eventfds(s, incoming_posn);
+ close_peer_eventfds(s, incoming_posn);
}
return;
}
@@ -571,7 +571,7 @@ static void ivshmem_read(void *opaque, const uint8_t *buf,
int size)
/* get a new eventfd */
nth_eventfd = peer->nb_eventfds++;
- /* this is an eventfd for a particular guest VM */
+ /* this is an eventfd for a particular peer VM */
IVSHMEM_DPRINTF("eventfds[%ld][%d] = %d\n", incoming_posn,
nth_eventfd, incoming_fd);
event_notifier_init_fd(&peer->eventfds[nth_eventfd], incoming_fd);
@@ -751,7 +751,7 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error
**errp)
return;
}
- /* we allocate enough space for 16 guests and grow as needed */
+ /* we allocate enough space for 16 peers and grow as needed */
resize_peers(s, 16);
s->vm_id = -1;
@@ -829,7 +829,7 @@ static void pci_ivshmem_exit(PCIDevice *dev)
if (s->peers) {
for (i = 0; i < s->nb_peers; i++) {
- close_guest_eventfds(s, i);
+ close_peer_eventfds(s, i);
}
g_free(s->peers);
}
--
2.4.3
