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142 Commits

Author SHA1 Message Date
aliguori
2bec46dc97 vga optimization (Glauber Costa) 
Hypervisors like KVM perform badly while doing mmio on
a loop, because it'll generate an exit on each access.
This is the case with VGA, which results in very bad
performance.

In this patch, we map the linear frame buffer as RAM,
make sure it has dirty region tracking enabled, and then
just let the region to be written.

Cleanups suggestions by:
  Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5793 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-11-24 20:21:41 +00:00
aliguori
b4fbd8798a move vga_io_address to VGA State (Glauber Costa) 
It'll be reused later by the vga optimization.

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5791 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-11-24 19:35:16 +00:00
aliguori
4efe27556d better type checking for vga (Glauber Costa) 
unsigned long is too bad of a type. Use ram_addr_t instead.

aligurori: fixed a compile warning in this patch

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5790 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-11-24 19:33:59 +00:00
aliguori
0e1f5a0c49 Introduce accessors for DisplayState (Stefano Stabellini) 
Introducing some accessors:

ds_get_linesize
ds_get_bits_per_pixel
ds_get_width
ds_get_height
ds_get_data

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5789 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-11-24 19:29:13 +00:00
aurel32
65d35a0997 CVE-2008-4539: fix a heap overflow in Cirrus emulation 
The code in hw/cirrus_vga.c has changed a lot between CVE-2007-1320 has
been announced and the patch has been applied. As a consequence it has
wrongly applied and QEMU is still vulnerable to this bug if using VNC.

(noticed by Jan Niehusmann)

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5587 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-11-01 00:53:39 +00:00
malc
cb5a7aa8c3 Optional "precise" VGA retrace support 
Selected via: -vga <name>,retrace=precise

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5336 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-09-28 00:42:12 +00:00
balrog
38334f7630 Don't use ds->dpy_copy directly from hw/ (Jan Niehusmann). 
I left a TODO in the code because this still doesn't definitely
fix all issues.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5308 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-09-24 02:21:24 +00:00
aurel32
d552947107 i386: fix isapc machine 
- cirrus vga: enable graphic console
- pc: don't use apic for interrupts on ISA machine

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5026 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-08-19 12:55:20 +00:00
pbrook
c60e08d9c6 Implement resolution switching in common console code. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4812 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-07-01 16:24:38 +00:00
aurel32
ca896ef389 cirrusfb: proper "Attribute Controller Toggle Readback" register behaviour 
(Marcelo Tosatti)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4386 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-05-08 12:21:27 +00:00
aurel32
b2eb849d4b CVE-2007-1320 - Cirrus LGD-54XX "bitblt" heap overflow 
I have just noticed that patch for CVE-2007-1320 has never been applied
to the QEMU CVS. Please find it below.

| Multiple heap-based buffer overflows in the cirrus_invalidate_region
| function in the Cirrus VGA extension in QEMU 0.8.2, as used in Xen and
| possibly other products, might allow local users to execute arbitrary
| code via unspecified vectors related to "attempting to mark
| non-existent regions as dirty," aka the "bitblt" heap overflow.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4340 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-05-05 21:26:31 +00:00
balrog
4d3b6f6e12 Add an ncurses UI. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3976 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-02-10 16:33:14 +00:00
ths
bee8d6842d qemu_put signedness fixes, by Andre Przywara. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3824 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-12-16 23:41:11 +00:00
pbrook
87ecb68bdf Break up vl.h. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-11-17 17:14:51 +00:00
ths
3b46e62427 find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in the regex. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-09-17 08:09:54 +00:00
ths
5fafdf24ef find -type f | xargs sed -i 's/[\t ]$//g' # on most files 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-09-16 21:08:06 +00:00
ths
96cf2df87c Cirrus transparent BITBLT (w/o color expand), by Hitoshi Osada. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3101 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-07-31 23:26:00 +00:00
ths
e91c8a7783 Spelling fixes, by Stefan Weil. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2927 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-06-03 13:35:16 +00:00
ths
d34cab9f49 VMware SVGA II emulation, by Andrzej Zaborowski. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2579 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-04-02 01:10:46 +00:00
bellard
83acc96b23 fixed VGA resolutions with height > 1024 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2121 c046a42c-6fe2-441c-8c8c-71466251a162
 2006-08-18 09:32:04 +00:00
bellard
d2269f6f64 save VGA PCI state 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2113 c046a42c-6fe2-441c-8c8c-71466251a162
 2006-08-17 10:44:00 +00:00
bellard
24236869fb VNC server (Anthony Liguori) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1869 c046a42c-6fe2-441c-8c8c-71466251a162
 2006-04-30 21:28:36 +00:00
bellard
ad81218e40 depth=24 write mask fix (Volker Ruppert) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1404 c046a42c-6fe2-441c-8c8c-71466251a162
 2005-04-26 20:49:17 +00:00
bellard
e3a4e4b643 destination write mask support, fixed banked memory access, read-only access for bus type in SR 0x17 (Volker Ruppert) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1364 c046a42c-6fe2-441c-8c8c-71466251a162
 2005-04-17 17:56:18 +00:00
bellard
0b74ed78ef mode 4 and 5 write fix (Magnus Damn) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1241 c046a42c-6fe2-441c-8c8c-71466251a162
 2005-01-26 19:50:16 +00:00
bellard
c9c0eae84e bitblt fix (aka Solaris display fix) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1150 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-11-15 21:43:57 +00:00
bellard
9bb34eac8b CRTC register write protection fix 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1126 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-11-07 22:54:14 +00:00
bellard
8926b517e9 faster Cirrus VGA VRAM access 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1114 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-10-10 15:14:20 +00:00
bellard
2c6ab8329e load/save state support 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@992 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-07-10 13:41:46 +00:00
bellard
b30d4608da 24 bpp fixes 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@984 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-07-06 01:50:49 +00:00
bellard
ae184e4ab7 dac write index register is r/w - CR1D access fix (Volker Ruppert) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@978 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-26 16:13:19 +00:00
bellard
46e50e9d58 added PCI bus 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@961 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-21 19:43:00 +00:00
bellard
e69390cee7 pattern fill fixes and optimization 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@917 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-09 23:12:09 +00:00
bellard
78e127efdb set memory size to 4MB for 5446 - fixed memory size probe (aka Win2000 bug) - fixed interlace support 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@914 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-08 00:58:26 +00:00
bellard
4c8732d71b cirrus blitter fixes 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@907 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-07 19:46:45 +00:00
bellard
a5082316e9 hardware cursor support - fill with rop support - color expand and color expand with transparent support - various optimisations 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@902 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-06 15:16:19 +00:00
bellard
20ba3ae101 better to use different ID for ISA and PCI 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@901 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-05 18:50:58 +00:00
bellard
a21ae81d8a change ID to CLGD5446 - added solidfill support - fixed hidden dac access 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@899 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-05 17:59:37 +00:00
bellard
aeb3c85f59 Cirrus fixes 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@898 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-05 14:26:11 +00:00
bellard
4e3e9d0b4d avoid using anonymous struct extension (not supported by all gcc 3.x) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@896 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-05 13:18:45 +00:00
bellard
e36f36e15f mmio support for vga registers - line offset fix - (aka XFree86 4.3.0 fixes) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@894 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-05 12:47:01 +00:00
bellard
e6e5ad80d8 Cirrus VGA emulation (initial patch by Suzu - heavily modified for easier merge) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@891 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-06-05 10:31:55 +00:00