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827bd51726
qemu-e2k/hw/display
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Gerd Hoffmann 827bd51726 cirrus: add option to disable blitter 
Ok, we have this beast in the cirrus code which is not used at all by
modern guests, except when you try to find security holes in qemu.  So,
add an option to disable blitter altogether.  Guests released within
the last ten years should not show any rendering issues if you turn off
blitter support.

There are no known bugs in the cirrus blitter code.  But in the past we
hoped a few times already that we've finally nailed the last issue.  So
having some easy way to mitigate in case yet another blitter issue shows
up certainly makes me sleep a bit better at night.

For completeness:  The by far better way to mitigate is to switch away
from cirrus and use stdvga instead.  Or something more modern like
virtio-vga in case your guest has support for it.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1489494540-15745-1-git-send-email-kraxel@redhat.com
2017-03-16 08:58:15 +01:00
..
ads7846.c ssi: change ssi_slave_init to be a realize ops 2016-07-04 13:15:22 +01:00
bcm2835_fb.c hw: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
blizzard.c hw/display/blizzard: Remove blizzard_template.h 2016-05-12 13:22:30 +01:00
cg3.c hw: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
cirrus_vga_rop2.h hw: move private headers to hw/ subdirectories. 2013-04-08 18:13:16 +02:00
cirrus_vga_rop.h fix :cirrus_vga fix OOB read case qemu Segmentation fault 2017-03-16 08:58:15 +01:00
cirrus_vga.c cirrus: add option to disable blitter 2017-03-16 08:58:15 +01:00
dpcd.c aux: Rename aux.[ch] to auxbus.[ch] for the benefit of Windows 2016-07-07 13:47:01 +01:00
exynos4210_fimd.c hw/display: QOM'ify exynos4210_fimd.c 2016-05-12 13:22:27 +01:00
framebuffer.c hw/display/framebuffer.c: Avoid overflow for framebuffers > 4GB 2017-01-24 23:26:53 +03:00
framebuffer.h framebuffer: set DIRTY_MEMORY_VGA on RAM that is used for the framebuffer 2015-07-24 13:57:45 +02:00
g364fb.c migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
jazz_led.c hw/display: QOM'ify jazz_led.c 2016-05-13 09:33:38 +01:00
Makefile.objs introduce xlnx-dp 2016-06-14 16:01:03 +01:00
milkymist-tmu2.c lm32: milkymist-tmu2: fix a third integer overflow 2017-02-28 09:03:39 +03:00
milkymist-vgafb_template.h milkymist-vgafb: swap pixel data in source buffer 2014-02-04 19:34:30 +01:00
milkymist-vgafb.c milkymist: update specification URLs 2016-06-20 18:12:04 +02:00
omap_dss.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
omap_lcd_template.h omap_lcdc: Remove support for DEPTH != 32 2016-05-12 13:22:24 +01:00
omap_lcdc.c omap_lcdc: Remove support for DEPTH != 32 2016-05-12 13:22:24 +01:00
pl110_template.h display: avoid multi-statement macro 2014-01-31 14:47:33 +00:00
pl110.c hw/display: QOM'ify pl110.c 2016-10-24 16:26:56 +01:00
pxa2xx_lcd.c arm: Clean up includes 2016-01-29 15:07:23 +00:00
pxa2xx_template.h display: avoid multi-statement macro 2014-01-31 14:47:33 +00:00
qxl-logger.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
qxl-render.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
qxl.c qxl: clear guest_cursor on QXL_CURSOR_HIDE 2017-03-09 09:47:26 +01:00
qxl.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
sm501_template.h hw: use ld_p/st_p instead of ld_raw/st_raw 2014-06-05 16:04:17 +02:00
sm501.c char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
ssd0303.c i2c: Allow I2C devices to NAK start events 2017-01-09 11:40:20 +00:00
ssd0323.c vmstateify ssd0323 display 2016-09-22 18:13:08 +01:00
tc6393xb_template.h display: avoid multi-statement macro 2014-01-31 14:47:33 +00:00
tc6393xb.c qemu-common: stop including qemu/host-utils.h from qemu-common.h 2016-05-19 16:42:28 +02:00
tcx.c hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
trace-events cirrus: replace debug printf with trace points 2017-02-10 16:49:45 +01:00
vga_int.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
vga-helpers.h vga: Rename vga_template.h to vga-helpers.h 2014-09-30 13:34:09 +02:00
vga-isa-mm.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
vga-isa.c portio: keep references on portio 2016-09-08 18:05:21 +04:00
vga-pci.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
vga.c vga: replace debug printf with trace points 2017-02-10 16:49:45 +01:00
vga.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
virtio-gpu-3d.c virtio-gpu: use dpy_gl_scanout_disable 2017-02-27 16:15:29 +01:00
virtio-gpu-pci.c virtio-gpu-pci: tag as not hotpluggable 2016-09-13 09:26:58 +02:00
virtio-gpu.c virtio-gpu: fix memory leak in set scanout 2017-02-10 16:49:45 +01:00
virtio-vga.c virtio: rename the bar index field name in VirtIOPCIProxy 2016-10-08 11:25:29 +03:00
vmware_vga.c vmsvga: correct bitmap and pixmap size checks 2016-09-13 09:24:35 +02:00
xenfb.c xen: Rename xen_be_find_xendev 2016-10-28 17:54:39 -07:00
xlnx_dp.c hw: Fix typos found by codespell 2017-01-24 23:26:52 +03:00