Commit graph

15 commits

Author SHA1 Message Date
Marc-André Lureau 2c8ebac7cc vga: fix invalid read after free
After calling dpy_gfx_replace_surface(s->con, surface), the outer
surface is invalid.

==5370== Invalid read of size 4
==5370==    at 0x460229: surface_bits_per_pixel (console.h:250)
==5370==    by 0x466A81: get_depth_index (vga.c:1173)
==5370==    by 0x467EC2: vga_draw_graphic (vga.c:1718)
==5370==    by 0x4687A5: vga_update_display (vga.c:1914)
==5370==    by 0x2A782E: qxl_hw_update (qxl.c:1766)
==5370==    by 0x3EB83B: graphic_hw_update (console.c:254)
==5370==    by 0x3FBE31: qemu_spice_display_refresh (spice-display.c:418)
==5370==    by 0x2A7D01: display_refresh (qxl.c:1886)
==5370==    by 0x3EEE1C: dpy_refresh (console.c:1436)
==5370==    by 0x3EB543: gui_update (console.c:192)
==5370==    by 0x3C43B3: timerlist_run_timers (qemu-timer.c:488)
==5370==    by 0x3C4416: qemu_clock_run_timers (qemu-timer.c:499)
==5370==  Address 0x22ffb1e0 is 0 bytes inside a block of size 56 free'd
==5370==    at 0x4A074C4: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==5370==    by 0x4245FC: free_and_trace (vl.c:2771)
==5370==    by 0x50899AE: g_free (gmem.c:252)
==5370==    by 0x3EE8D3: qemu_free_displaysurface (console.c:1332)
==5370==    by 0x3EEDB7: dpy_gfx_replace_surface (console.c:1427)
==5370==    by 0x467EB6: vga_draw_graphic (vga.c:1714)
==5370==    by 0x4687A5: vga_update_display (vga.c:1914)
==5370==    by 0x2A782E: qxl_hw_update (qxl.c:1766)
==5370==    by 0x3EB83B: graphic_hw_update (console.c:254)
==5370==    by 0x3FBE31: qemu_spice_display_refresh (spice-display.c:418)
==5370==    by 0x2A7D01: display_refresh (qxl.c:1886)
==5370==    by 0x3EEE1C: dpy_refresh (console.c:1436)

Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1383664554-15248-1-git-send-email-marcandre.lureau@gmail.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-11-05 20:01:11 -08:00
Jan Kiszka c46860ea53 vga: Mark relevant portio lists regions as coalesced MMIO flushing
This allows to remove the explicit qemu_flush_coalesced_mmio_buffer
calls.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-10-17 17:24:15 +02:00
Alex Bligh bc72ad6754 aio / timers: Switch entire codebase to the new timer API
This is an autogenerated patch using scripts/switch-timer-api.

Switch the entire code base to using the new timer API.

Note this patch may introduce some line length issues.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Paolo Bonzini db10ca9057 piolist: add owner argument to initialization functions and pass devices
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:47 +02:00
Paolo Bonzini 42e038fe91 vga: set owner in vga_update_memory_access
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini c84b28eeea vga: pass owner to vga_init_io
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini 8311832773 vga: pass owner to vga_init_vbe
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini 270327feb2 vga: pass owner to vga_common_init
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini 712f0cc777 vga: pass owner to vga_init
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:46 +02:00
Paolo Bonzini 2c9b15cab1 memory: add owner argument to initialization functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:44 +02:00
Gerd Hoffmann 380cd056ec console: add GraphicHwOps
Pass a single GraphicHwOps struct pointer to graphic_console_init,
instead of a bunch of function pointers.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-04-16 09:03:49 +02:00
Gerd Hoffmann 2c62f08ddb console: simplify screendump
Screendumps are alot simpler as we can update non-active
QemuConsoles now.  So we only need to update the QemuConsole
we want write out, then dump the DisplaySurface content into
a ppm file.  Done.

No console switching needed.  No special support code in the
gfx card emulation needed.  Zap it all.  Also move ppm_save
out of the vga code and next to the qmp_screendump function.

For now screen dumping is limited to console #0 (like it used
to be), even though it is dead simple to extend it to other
consoles.  I wanna finish the console cleanup before setting
new qapi interfaces into stone.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
2013-04-16 09:03:48 +02:00
Gerd Hoffmann 1dbfa00503 console: rename vga_hw_*, add QemuConsole param
Add QemuConsole parameter to vga_hw_*, so the interface allows to update
non-active consoles (the actual code can't handle this yet, see next
patch).  Passing NULL is allowed and updates the active console, like
the functions do today.

While touching all vga_hw_* calls anyway rename that to the functions to
hardware-neutral graphics_hw_*

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-04-16 09:03:48 +02:00
Paolo Bonzini 47b43a1f41 hw: move private headers to hw/ subdirectories.
Many headers are used only in a single directory.  These can be
kept in hw/.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:16 +02:00
Paolo Bonzini fc97bb5ba3 hw: move display devices to hw/display/, configure via default-configs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:13 +02:00
Renamed from hw/vga.c (Browse further)