mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-15 10:17:20 +00:00
2cf9911fc1
this on the branch.
Original commit message:
Initial bhyve native graphics support.
This adds emulations for a raw framebuffer device, PS2 keyboard/mouse,
XHCI USB controller and a USB tablet.
A simple VNC server is provided for keyboard/mouse input, and graphics
output.
A VGA emulation is included, but is currently disconnected until an
additional bhyve change to block out VGA memory is committed.
Credits:
- raw framebuffer, VNC server, XHCI controller, USB bus/device emulation
and UEFI f/w support by Leon Dang
- VGA, console/g, initial VNC server by tychon@
- PS2 keyboard/mouse jointly done by tychon@ and Leon Dang
- hypervisor framebuffer mem support by neel@
Tested by: Michael Dexter, in a number of revisions of this code.
With the appropriate UEFI image, FreeBSD, Windows and Linux guests can
installed and run in graphics mode using the UEFI/GOP framebuffer.
Approved by: re (gjb)
87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*-
|
|
* Copyright (c) 2015 Nahanni Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include "sockstream.h"
|
|
|
|
ssize_t
|
|
stream_read(int fd, void *buf, ssize_t nbytes)
|
|
{
|
|
uint8_t *p;
|
|
ssize_t len = 0;
|
|
ssize_t n;
|
|
|
|
p = buf;
|
|
|
|
while (len < nbytes) {
|
|
n = read(fd, p + len, nbytes - len);
|
|
if (n == 0)
|
|
break;
|
|
|
|
if (n < 0) {
|
|
if (errno == EINTR || errno == EAGAIN)
|
|
continue;
|
|
return (n);
|
|
}
|
|
len += n;
|
|
}
|
|
return (len);
|
|
}
|
|
|
|
ssize_t
|
|
stream_write(int fd, const void *buf, ssize_t nbytes)
|
|
{
|
|
const uint8_t *p;
|
|
ssize_t len = 0;
|
|
ssize_t n;
|
|
|
|
p = buf;
|
|
|
|
while (len < nbytes) {
|
|
n = write(fd, p + len, nbytes - len);
|
|
if (n == 0)
|
|
break;
|
|
if (n < 0) {
|
|
if (errno == EINTR || errno == EAGAIN)
|
|
continue;
|
|
return (n);
|
|
}
|
|
len += n;
|
|
}
|
|
return (len);
|
|
}
|
|
|
|
|