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drivers/qemu: Split Cirrus display support from Bochs display support

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QEMU's Cirrus display device is supported along with the Bochs driver
since commit 7905f9254ebc ("qemu: cirrus native video init"). It is no
longer the default since QEMU 2.2. The code supporting it can work
independently of the Bochs display driver and depends more heavily on
port I/O and VGA support code, so split it from that code to make it
easier to support the Bochs driver in other architectures.

Change-Id: Ic9492b501ed4fdcbda6886db60b1e5348715e667
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80375
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Alper Nebi Yasak 2023-10-20 22:59:26 +03:00 committed by Felix Held
parent 795994e025
commit 8ae0eff824
2 changed files with 15 additions and 6 deletions
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19
src/drivers/emulation/qemu/Kconfig
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@ -11,18 +11,27 @@ config DRIVERS_EMULATION_QEMU_BOCHS
help
VGA driver for qemu emulated vga cards supporting
the bochs dispi interface. This includes
standard vga, vmware svga and qxl. The default
vga (cirrus) is *not* supported, so you have to
pick another one explicitly via 'qemu -vga $card'.
standard vga, vmware svga, and qxl.
config DRIVERS_EMULATION_QEMU_CIRRUS
bool "cirrus svga driver"
default y
depends on CPU_QEMU_X86
depends on MAINBOARD_DO_NATIVE_VGA_INIT
select HAVE_VGA_TEXT_FRAMEBUFFER
select HAVE_LINEAR_FRAMEBUFFER
select VGA
help
VGA driver for qemu emulated cirrus svga card.
config DRIVERS_EMULATION_QEMU_BOCHS_XRES
int "bochs vga xres"
default 800
depends on LINEAR_FRAMEBUFFER
depends on DRIVERS_EMULATION_QEMU_BOCHS
depends on DRIVERS_EMULATION_QEMU_BOCHS || DRIVERS_EMULATION_QEMU_CIRRUS
config DRIVERS_EMULATION_QEMU_BOCHS_YRES
int "bochs vga yres"
default 600
depends on LINEAR_FRAMEBUFFER
depends on DRIVERS_EMULATION_QEMU_BOCHS
depends on DRIVERS_EMULATION_QEMU_BOCHS || DRIVERS_EMULATION_QEMU_CIRRUS

2
src/drivers/emulation/qemu/Makefile.mk
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@ -6,4 +6,4 @@ postcar-$(CONFIG_CONSOLE_QEMU_DEBUGCON) += qemu_debugcon.c
ramstage-$(CONFIG_CONSOLE_QEMU_DEBUGCON) += qemu_debugcon.c
ramstage-$(CONFIG_DRIVERS_EMULATION_QEMU_BOCHS) += bochs.c
ramstage-$(CONFIG_DRIVERS_EMULATION_QEMU_BOCHS) += cirrus.c
ramstage-$(CONFIG_DRIVERS_EMULATION_QEMU_CIRRUS) += cirrus.c