mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
01f18af98b
qemu/hw
History
Peter Maydell 01f18af98b hw/display/bcm2835_fb: Fix handling of virtual framebuffer 
The raspi framebuffir in bcm2835_fb supports the definition
of a virtual "viewport", which is smaller than the full
physical framebuffer size and at an adjustable offset within
it. Only the viewport area is sent to the screen. This allows
the guest to do things like double buffering, or scrolling
by adjusting the viewport origin. Currently QEMU doesn't
implement this at all.

Add support for this feature:
 * the property mailbox code needs to distinguish the
   virtual width/height from the physical width/height
 * the framebuffer code needs to do something with the
   virtual width/height/origin information

Note that the wiki documentation on the semantics of the
virtual and physical height and width has it the wrong way
around -- the virtual size is the size of the allocated
buffer, and the physical size is the size of the display,
so the virtual size is always the same as or larger than
the physical.

If the viewport size is set smaller than the physical
screen size, we ignore the viewport settings completely
and just display the physical screen area.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-7-peter.maydell@linaro.org
2018-08-24 13:17:49 +01:00
..
9pfs 9p: darwin: Explicitly cast comparisons of mode_t with -1 2018-06-29 12:32:10 +02:00
acpi i2c: pm_smbus: Add the ability to force block transfer enable 2018-08-23 18:46:25 +02:00
adc Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
alpha hw/alpha: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
arm hw/arm/mps2-tz: Fix MPS2 SCC config register values 2018-08-24 13:17:47 +01:00
audio fix "Missing break in switch" coverity reports 2018-08-23 13:32:50 +02:00
block block: Remove deprecated -drive option serial 2018-08-15 12:50:39 +02:00
bt hw/bt: Replace fprintf(stderr, "*\n" with error_report() 2018-01-22 09:51:00 +01:00
char imx_serial: Generate interrupt on receive data ready if enabled 2018-08-20 11:24:31 +01:00
core sysbus: always allow explicit_ofw_unit_address() to override address generation 2018-08-16 22:27:43 -03:00
cpu hw/cpu/a15mpcore: If CPU has EL2, enable it on the GIC and wire it up 2018-08-24 13:17:34 +01:00
cris hw/cris: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
display hw/display/bcm2835_fb: Fix handling of virtual framebuffer 2018-08-24 13:17:49 +01:00
dma hw/dma/pl080: Remove hw_error() if DMA is enabled 2018-08-20 11:24:33 +01:00
gpio hw/i2c: Use DeviceClass::realize instead of I2CSlaveClass::init 2018-06-01 15:14:31 +02:00
hppa hw/hppa: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
i2c i2c: pm_smbus: Add the ability to force block transfer enable 2018-08-23 18:46:25 +02:00
i386 pc-dimm: assign and verify the "addr" property during pre_plug 2018-08-23 18:46:25 +02:00
ide block: Remove deprecated -drive option serial 2018-08-15 12:50:39 +02:00
input hw/input/tsc2005: Convert a fprintf() call to trace events 2018-06-29 15:04:18 +01:00
intc hw/intc/arm_gic: Make per-cpu GICH memory regions 0x200 bytes large 2018-08-24 13:17:31 +01:00
ipack hw/ipack: Use the IEC binary prefix definitions 2018-07-02 15:41:12 +02:00
ipmi ipmi: Use proper struct reference for BT vmstate 2018-08-23 18:46:25 +02:00
isa i2c: pm_smbus: Add the ability to force block transfer enable 2018-08-23 18:46:25 +02:00
lm32 hw/lm32: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
m68k hw/m68k: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
mem pc-dimm: assign and verify the "addr" property during pre_plug 2018-08-23 18:46:25 +02:00
microblaze hw/microblaze/xlnx-zynqmp-pmu: Fix introspection problem in 'xlnx, zynqmp-pmu-soc' 2018-07-23 15:21:25 +01:00
mips * IEC units series (Philippe) 2018-07-02 19:07:19 +01:00
misc hw/display/bcm2835_fb: Fix handling of virtual framebuffer 2018-08-24 13:17:49 +01:00
moxie Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
net e1000e: Prevent MSI/MSI-X storms 2018-07-20 08:30:48 +08:00
nios2 hw/nios2: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
nvram fw_cfg: ignore suffixes in the bootdevice list dependent on machine class 2018-08-16 22:27:43 -03:00
openrisc Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
pci virtio,vhost,pci,pc: features, cleanups 2018-03-20 15:48:34 +00:00
pci-bridge virtio,vhost,pci,pc: features, fixes and cleanups 2018-02-13 16:33:31 +00:00
pci-host hw/pci-host/bonito: Move away from old_mmio accessors 2018-08-21 09:52:22 +02:00
pcmcia
ppc * x86 TCG fixes for 64-bit call gates (Andrew) 2018-08-23 19:03:54 +01:00
rdma config: split PVRDMA from RDMA 2018-08-18 18:01:34 +03:00
riscv spike: Fix crash when introspecting the device 2018-07-19 09:05:48 -07:00
s390x s390x: remove 's390-squash-mcss' option 2018-08-20 14:18:49 +02:00
scsi vhost-scsi: expose 't10_pi' property for VIRTIO_SCSI_F_T10_PI 2018-08-23 18:46:25 +02:00
sd sdhci: add i.MX SD Stable Clock bit 2018-08-20 11:24:32 +01:00
sh4 hw/sh4: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
smbios hw/smbios: Use the IEC binary prefix definitions 2018-07-02 15:41:12 +02:00
sparc sun4m: don't use legacy fw_cfg_init_mem() function 2018-08-20 19:18:31 +01:00
sparc64 sun4u: ensure kernel_top is always initialised 2018-08-20 19:18:31 +01:00
ssi hw/ssi/pl022: Correct wrong DMACR and ICR handling 2018-08-24 13:17:46 +01:00
timer hw/timer/cmsdk-apb-dualtimer: Implement CMSDK dual timer module 2018-08-24 13:17:41 +01:00
tpm tpm: extend TPM TIS with state migration support 2018-05-24 12:07:04 -04:00
tricore hw/tricore: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
unicore32 hw/input/i8042: Extract declarations from i386/pc.h into input/i8042.h 2018-03-12 16:12:48 +01:00
usb dev-mtp: rename x-root to rootdir 2018-08-21 10:27:59 +02:00
vfio vfio/spapr: Allow backing bigger guest IOMMU pages with smaller physical pages 2018-08-21 14:28:45 +10:00
virtio kvm: Use inhibit to prevent ballooning without synchronous mmu 2018-08-17 09:27:15 -06:00
watchdog hw/watchdog/cmsdk_apb_watchdog: Implement CMSDK APB watchdog module 2018-08-20 11:24:33 +01:00
xen xen: Don't use memory_region_init_ram_nomigrate() in pci_assign_dev_load_option_rom() 2018-06-22 13:28:42 +01:00
xenpv hw/xen: Use the IEC binary prefix definitions 2018-07-02 15:41:13 +02:00
xtensa hw/xtensa: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
Makefile.objs hw: allow compiling out SCSI 2018-06-01 15:14:31 +02:00