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qemu/hw/display
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Gerd Hoffmann 94ef4f337f vga: add sr_vbe register set 
Commit "fd3c136 vga: make sure vga register setup for vbe stays intact
(CVE-2016-3712)." causes a regression.  The win7 installer is unhappy
because it can't freely modify vga registers any more while in vbe mode.

This patch introduces a new sr_vbe register set.  The vbe_update_vgaregs
will fill sr_vbe[] instead of sr[].  Normal vga register reads and
writes go to sr[].  Any sr register read access happens through a new
sr() helper function which will read from sr_vbe[] with vbe active and
from sr[] otherwise.

This way we can allow guests update sr[] registers as they want, without
allowing them disrupt vbe video modes that way.

Cc: qemu-stable@nongnu.org
Reported-by: Thomas Lamprecht <thomas@lamprecht.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1463475294-14119-1-git-send-email-kraxel@redhat.com
2016-05-23 14:28:25 +02:00
..
ads7846.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
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 cirrus: Fix host CPU blits 2014-07-11 10:17:02 +02:00
cirrus_vga.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
exynos4210_fimd.c hw/display: QOM'ify exynos4210_fimd.c 2016-05-12 13:22:27 +01:00
framebuffer.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
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 hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
jazz_led.c hw/display: QOM'ify jazz_led.c 2016-05-13 09:33:38 +01:00
Makefile.objs bcm2835_fb: add framebuffer device for Raspberry Pi 2016-03-16 17:42:18 +00:00
milkymist-tmu2.c lm32: Clean up includes 2016-01-29 15:07:22 +00:00
milkymist-vgafb_template.h milkymist-vgafb: swap pixel data in source buffer 2014-02-04 19:34:30 +01:00
milkymist-vgafb.c lm32: Clean up includes 2016-01-29 15:07:22 +00:00
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: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
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: lock current_async update in qxl_soft_reset 2016-03-01 07:51:32 +01:00
qxl.h qxl: allow to specify head limit to qxl driver 2015-07-16 17:31:05 +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 hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
ssd0303.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
ssd0323.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
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
vga_int.h vga: add sr_vbe register set 2016-05-23 14:28:25 +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 hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
vga-pci.c hw/display: Clean up includes 2016-01-29 15:07:24 +00:00
vga.c vga: add sr_vbe register set 2016-05-23 14:28:25 +02:00
vga.h hw: move private headers to hw/ subdirectories. 2013-04-08 18:13:16 +02:00
virtio-gpu-3d.c virtio-gpu: check max_outputs only 2016-05-23 13:30:03 +02:00
virtio-gpu-pci.c virtio: Clean up includes 2016-01-29 15:07:23 +00:00
virtio-gpu.c virtio-gpu: fix ui idx check 2016-05-23 13:30:03 +02:00
virtio-vga.c virtio-vga: propagate on gpu realized error 2016-05-23 13:30:03 +02:00
vmware_vga.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
xenfb.c xenfb: use the correct condition to avoid excessive looping 2016-04-12 10:16:08 -07:00