Fixes include:
- Error handling
- Cleanup
- Standard init/uninit
Signed-off-by: Sasha Levin <levinsasha...@gmail.com>
---
tools/kvm/builtin-run.c | 35 ++++++++++++++++++++++++++---------
tools/kvm/framebuffer.c | 9 ++++++++-
tools/kvm/hw/vesa.c | 11 +++++++----
tools/kvm/include/kvm/framebuffer.h | 1 +
tools/kvm/include/kvm/sdl.h | 7 ++++++-
tools/kvm/include/kvm/vnc.h | 10 ++++++++--
tools/kvm/ui/sdl.c | 31 +++++++++++++++++++++++++++----
tools/kvm/ui/vnc.c | 22 +++++++++++++++++-----
8 files changed, 100 insertions(+), 26 deletions(-)
diff --git a/tools/kvm/builtin-run.c b/tools/kvm/builtin-run.c
index e40d90b..37bc3f2 100644
--- a/tools/kvm/builtin-run.c
+++ b/tools/kvm/builtin-run.c
@@ -35,6 +35,7 @@
#include "kvm/builtin-debug.h"
#include <linux/types.h>
+#include <linux/err.h>
#include <sys/utsname.h>
#include <sys/types.h>
@@ -992,8 +993,9 @@ static int kvm_cmd_run_init(int argc, const char **argv)
if (vnc || sdl) {
if (vidmode == -1)
vidmode = 0x312;
- } else
+ } else {
vidmode = 0;
+ }
memset(real_cmdline, 0, sizeof(real_cmdline));
kvm__arch_set_cmdline(real_cmdline, vnc || sdl);
@@ -1105,20 +1107,35 @@ static int kvm_cmd_run_init(int argc, const char **argv)
pci_shmem__init(kvm);
- if (vnc || sdl)
+ if (vnc || sdl) {
fb = vesa__init(kvm);
+ if (IS_ERR(fb)) {
+ pr_error("vesa__init() failed with error %ld\n",
PTR_ERR(fb));
+ goto fail;
+ }
+ }
- if (vnc) {
- if (fb)
- vnc__init(fb);
+ if (vnc && fb) {
+ r = vnc__init(fb);
+ if (r < 0) {
+ pr_error("vnc__init() failed with error %d\n", r);
+ goto fail;
+ }
}
- if (sdl) {
- if (fb)
- sdl__init(fb);
+ if (sdl && fb) {
+ sdl__init(fb);
+ if (r < 0) {
+ pr_error("sdl__init() failed with error %d\n", r);
+ goto fail;
+ }
}
- fb__start();
+ r = fb__start();
+ if (r < 0) {
+ pr_error("fb__init() failed with error %d\n", r);
+ goto fail;
+ }
/* Device init all done; firmware init must
* come after this (it may set up device trees etc.)
diff --git a/tools/kvm/framebuffer.c b/tools/kvm/framebuffer.c
index b6eb1ac..e15b717 100644
--- a/tools/kvm/framebuffer.c
+++ b/tools/kvm/framebuffer.c
@@ -4,6 +4,7 @@
#include <linux/list.h>
#include <stdlib.h>
#include <sys/mman.h>
+#include <errno.h>
static LIST_HEAD(framebuffers);
@@ -18,7 +19,7 @@ struct framebuffer *fb__register(struct framebuffer *fb)
int fb__attach(struct framebuffer *fb, struct fb_target_operations *ops)
{
if (fb->nr_targets >= FB_MAX_TARGETS)
- return -1;
+ return -ENOSPC;
fb->targets[fb->nr_targets++] = ops;
@@ -63,6 +64,12 @@ void fb__stop(void)
struct framebuffer *fb;
list_for_each_entry(fb, &framebuffers, node) {
+ u32 i;
+
+ for (i = 0; i < fb->nr_targets; i++)
+ if (fb->targets[i]->stop)
+ fb->targets[i]->stop(fb);
+
munmap(fb->mem, fb->mem_size);
}
}
diff --git a/tools/kvm/hw/vesa.c b/tools/kvm/hw/vesa.c
index 63f1082..2c0101f 100644
--- a/tools/kvm/hw/vesa.c
+++ b/tools/kvm/hw/vesa.c
@@ -8,9 +8,10 @@
#include "kvm/irq.h"
#include "kvm/kvm.h"
#include "kvm/pci.h"
+
#include <linux/byteorder.h>
#include <sys/mman.h>
-
+#include <linux/err.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <inttypes.h>
@@ -50,9 +51,11 @@ struct framebuffer *vesa__init(struct kvm *kvm)
u16 vesa_base_addr;
u8 dev, line, pin;
char *mem;
+ int r;
- if (irq__register_device(PCI_DEVICE_ID_VESA, &dev, &pin, &line) < 0)
- return NULL;
+ r = irq__register_device(PCI_DEVICE_ID_VESA, &dev, &pin, &line);
+ if (r < 0)
+ return ERR_PTR(r);
vesa_pci_device.irq_pin = pin;
vesa_pci_device.irq_line = line;
@@ -62,7 +65,7 @@ struct framebuffer *vesa__init(struct kvm *kvm)
mem = mmap(NULL, VESA_MEM_SIZE, PROT_RW, MAP_ANON_NORESERVE, -1, 0);
if (mem == MAP_FAILED)
- return NULL;
+ ERR_PTR(-errno);
kvm__register_mem(kvm, VESA_MEM_ADDR, VESA_MEM_SIZE, mem);
diff --git a/tools/kvm/include/kvm/framebuffer.h
b/tools/kvm/include/kvm/framebuffer.h
index b66d0ba..dc5022c 100644
--- a/tools/kvm/include/kvm/framebuffer.h
+++ b/tools/kvm/include/kvm/framebuffer.h
@@ -8,6 +8,7 @@ struct framebuffer;
struct fb_target_operations {
int (*start)(struct framebuffer *fb);
+ int (*stop)(struct framebuffer *fb);
};
#define FB_MAX_TARGETS 2
diff --git a/tools/kvm/include/kvm/sdl.h b/tools/kvm/include/kvm/sdl.h
index a5aa411..d0f83e0 100644
--- a/tools/kvm/include/kvm/sdl.h
+++ b/tools/kvm/include/kvm/sdl.h
@@ -6,12 +6,17 @@
struct framebuffer;
#ifdef CONFIG_HAS_SDL
-void sdl__init(struct framebuffer *fb);
+int sdl__init(struct framebuffer *fb);
+int sdl__uninit(struct framebuffer *fb);
#else
static inline void sdl__init(struct framebuffer *fb)
{
die("SDL support not compiled in. (install the SDL-dev[el] package)");
}
+static inline void sdl__uninit(struct framebuffer *fb)
+{
+ die("SDL support not compiled in. (install the SDL-dev[el] package)");
+}
#endif
#endif /* KVM__SDL_H */
diff --git a/tools/kvm/include/kvm/vnc.h b/tools/kvm/include/kvm/vnc.h
index da2f635..7f1df5d 100644
--- a/tools/kvm/include/kvm/vnc.h
+++ b/tools/kvm/include/kvm/vnc.h
@@ -4,10 +4,16 @@
struct framebuffer;
#ifdef CONFIG_HAS_VNCSERVER
-void vnc__init(struct framebuffer *fb);
+int vnc__init(struct framebuffer *fb);
+int vnc__uninit(struct framebuffer *fb);
#else
-static inline void vnc__init(struct framebuffer *fb)
+static inline int vnc__init(struct framebuffer *fb)
{
+ return 0;
+}
+static inline int vnc__uninit(struct framebuffer *fb)
+{
+ return 0;
}
#endif
diff --git a/tools/kvm/ui/sdl.c b/tools/kvm/ui/sdl.c
index 5bf11fa..36e46fa 100644
--- a/tools/kvm/ui/sdl.c
+++ b/tools/kvm/ui/sdl.c
@@ -137,6 +137,7 @@ static const struct set2_scancode const keymap[255] = {
[118] = DEFINE_ESC(0x70), /* <ins> */
[119] = DEFINE_ESC(0x71), /* <delete> */
};
+static bool running, done;
static const struct set2_scancode *to_code(u8 scancode)
{
@@ -225,7 +226,7 @@ static void *sdl__thread(void *p)
SDL_EnableKeyRepeat(200, 50);
- for (;;) {
+ while (running) {
SDL_BlitSurface(guest_screen, NULL, screen, NULL);
SDL_Flip(screen);
@@ -254,6 +255,11 @@ static void *sdl__thread(void *p)
SDL_Delay(1000 / FRAME_RATE);
}
+
+ if (running == false && done == false) {
+ done = true;
+ return NULL;
+ }
exit:
kvm_cpu__reboot();
@@ -264,17 +270,34 @@ static int sdl__start(struct framebuffer *fb)
{
pthread_t thread;
+ running = true;
+
if (pthread_create(&thread, NULL, sdl__thread, fb) != 0)
return -1;
return 0;
}
+static int sdl__stop(struct framebuffer *fb)
+{
+ running = false;
+ while (done == false)
+ sleep(0);
+
+ return 0;
+}
+
static struct fb_target_operations sdl_ops = {
- .start = sdl__start,
+ .start = sdl__start,
+ .start = sdl__stop,
};
-void sdl__init(struct framebuffer *fb)
+int sdl__init(struct framebuffer *fb)
+{
+ return fb__attach(fb, &sdl_ops);
+}
+
+int sdl__uninit(struct framebuffer *fb)
{
- fb__attach(fb, &sdl_ops);
+ return sdl__stop(fb);
}
diff --git a/tools/kvm/ui/vnc.c b/tools/kvm/ui/vnc.c
index d760492..344e6b7 100644
--- a/tools/kvm/ui/vnc.c
+++ b/tools/kvm/ui/vnc.c
@@ -30,6 +30,7 @@ static char letters[26] = {
0x1a,
};
+static rfbScreenInfoPtr server;
static char num[10] = {
0x45, 0x16, 0x1e, 0x26, 0x2e, 0x23, 0x36, 0x3d, 0x3e, 0x46,
};
@@ -182,8 +183,6 @@ static void *vnc__thread(void *p)
char argv[1][1] = {{0}};
int argc = 1;
- rfbScreenInfoPtr server;
-
server = rfbGetScreen(&argc, (char **) argv, fb->width, fb->height, 8,
3, 4);
server->frameBuffer = fb->mem;
server->alwaysShared = TRUE;
@@ -208,11 +207,24 @@ static int vnc__start(struct framebuffer *fb)
return 0;
}
+static int vnc__stop(struct framebuffer *fb)
+{
+ rfbShutdownServer(server, TRUE);
+
+ return 0;
+}
+
static struct fb_target_operations vnc_ops = {
- .start = vnc__start,
+ .start = vnc__start,
+ .stop = vnc__stop,
};
-void vnc__init(struct framebuffer *fb)
+int vnc__init(struct framebuffer *fb)
{
- fb__attach(fb, &vnc_ops);
+ return fb__attach(fb, &vnc_ops);
}
+
+int vnc__uninit(struct framebuffer *fb)
+{
+ return vnc__stop(fb);
+}
\ No newline at end of file
--
1.7.8
--
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