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qemu/hw/display
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Gerd Hoffmann c53db9c66d stdvga: fix screen blanking 
In case the display surface uses a shared buffer (i.e. uses vga vram
directly instead of a shadow) go unshare the buffer before clearing it.

This avoids vga memory corruption, which in turn fixes unblanking not
working properly with X11.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2067
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20240605131444.797896-2-kraxel@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit b1cf266c82)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-06-20 10:04:40 +03:00
..
acpi-vga-stub.c acpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors 2022-11-07 14:00:29 -05:00
acpi-vga.c acpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors 2022-11-07 14:00:29 -05:00
artist.c artist: set memory region owners for buffers to the artist device 2022-06-26 18:40:28 +01:00
ati_2d.c ati-vga: Implement fallback for pixman routines 2023-11-07 20:23:38 +03:00
ati_dbg.c ati-vga: Add dummy MEM_SDRAM_MODE_REG 2020-06-30 22:54:24 +02:00
ati_int.h ati-vga: Implement fallback for pixman routines 2023-11-07 20:23:38 +03:00
ati_regs.h ati-vga: Add dummy MEM_SDRAM_MODE_REG 2020-06-30 22:54:24 +02:00
ati.c ati-vga: Implement fallback for pixman routines 2023-11-07 20:23:38 +03:00
bcm2835_fb.c hw/display/bcm2835_fb: Fix framebuffer allocation address 2022-07-26 14:09:44 +01:00
blizzard.c hw/display: fix tab indentation 2022-11-08 10:23:32 +01:00
bochs-display.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
cg3.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
cirrus_vga_internal.h hw/display/cirrus_vga: Move "isa-cirrus-vga" device into a separate file 2018-10-15 09:57:33 +02:00
cirrus_vga_isa.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
cirrus_vga_rop2.h cirrus: fix PUTPIXEL macro 2017-03-27 12:14:45 +02:00
cirrus_vga_rop.h cirrus: fix off-by-one in cirrus_bitblt_rop_bkwd_transp_*_16 2017-03-17 10:23:44 +01:00
cirrus_vga.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
dpcd.c hw/display/dpcd: Convert debug printf()s to trace events 2020-05-28 11:38:57 +02:00
edid-generate.c edid: Fix clock of Detailed Timing Descriptor 2022-03-04 11:31:46 +01:00
edid-region.c Include exec/memory.h slightly less 2019-08-16 13:31:52 +02:00
exynos4210_fimd.c hw/display/exynos4210_fimd: Fix potential NULL pointer dereference 2020-11-02 16:52:17 +00:00
framebuffer.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
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 g364fb: add VMStateDescription for G364SysBusState 2021-07-02 17:35:08 +02:00
i2c-ddc.c Mark remaining global TypeInfo instances as const 2022-02-21 13:30:20 +00:00
jazz_led.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
Kconfig hw/display: Rename VGA_ISA_MM -> VGA_MMIO 2022-01-13 10:58:54 +01:00
macfb.c macfb: set initial value of mode control registers in macfb_common_realize() 2022-03-09 09:29:10 +00:00
meson.build acpi: pc: vga: use AcpiDevAmlIf interface to build VGA device descriptors 2022-11-07 14:00:29 -05:00
next-fb.c hw/display/next-fb: Fix comment typo 2022-12-03 22:07:07 +01:00
omap_dss.c hw/display: fix tab indentation 2022-11-08 10:23:32 +01:00
omap_lcdc.c hw/display/omap_lcdc: Delete unnecessary macro 2021-03-06 13:30:38 +00:00
pl110_template.h Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
pl110.c hw/display/pl110: Remove use of BITS from pl110_template.h 2021-03-14 13:14:55 +00:00
pxa2xx_lcd.c hw/display: fix tab indentation 2022-11-08 10:23:32 +01:00
qxl-logger.c hw/display/qxl: Pass requested buffer size to qxl_phys2virt() 2022-11-29 18:15:26 -05:00
qxl-render.c hw/display/qxl: Pass requested buffer size to qxl_phys2virt() 2022-11-29 18:15:26 -05:00
qxl.c qxl: don't assert() if device isn't yet initialized 2023-09-11 10:53:51 +03:00
qxl.h hw/display/qxl: Avoid buffer overrun in qxl_phys2virt (CVE-2022-4144) 2022-11-29 18:15:26 -05:00
ramfb-standalone.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
ramfb.c hw/display/ramfb: plug slight guest-triggerable leak on mode setting 2023-10-05 08:44:37 +03:00
sii9022.c hw/i2c: add asynchronous send 2022-06-30 09:21:14 +02:00
sm501.c hw/i2c: Rename i2c_set_slave_address() -> i2c_slave_set_address() 2021-07-08 14:15:01 -05:00
ssd0303.c hw/i2c: add asynchronous send 2022-06-30 09:21:14 +02:00
ssd0323.c hw/ssi: Rename SSI 'slave' as 'peripheral' 2020-12-10 12:15:03 -05:00
tc6393xb.c Use g_new() & friends where that makes obvious sense 2022-03-21 15:44:44 +01:00
tcx.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
trace-events hw/display/vmware_vga: do not discard screen updates 2022-04-22 11:47:08 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vga_int.h display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
vga_regs.h hw/display: fix tab indentation 2022-11-08 10:23:32 +01:00
vga-access.h vga: move access helpers to separate include file 2019-09-19 10:37:46 +02:00
vga-helpers.h vga: move access helpers to separate include file 2019-09-19 10:37:46 +02:00
vga-isa.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
vga-mmio.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
vga-pci.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
vga.c stdvga: fix screen blanking 2024-06-20 10:04:40 +03:00
vhost-user-gpu-pci.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
vhost-user-gpu.c vhost-user: Call qemu_socketpair() instead of socketpair() 2022-09-29 14:38:05 +04:00
vhost-user-vga.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-gpu-base.c virtio-gpu: Respect UI refresh rate for EDID 2022-06-14 10:34:37 +02:00
virtio-gpu-gl.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-gpu-pci-gl.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-gpu-pci.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-gpu-udmabuf-stubs.c virtio-gpu: splitting one extended mode guest fb into n-scanouts 2021-11-05 12:29:19 +01:00
virtio-gpu-udmabuf.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
virtio-gpu-virgl.c virtio-gpu: use VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP 2021-12-21 10:50:21 +04:00
virtio-gpu.c hw/display/virtio-gpu: Protect from DMA re-entrancy bugs 2024-04-10 19:25:48 +03:00
virtio-vga-gl.c modules: introduces module_kconfig directive 2022-06-06 09:26:53 +02:00
virtio-vga.c ui/console: Do not return a value with ui_info 2022-06-14 10:34:37 +02:00
virtio-vga.h qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
vmware_vga.c display: include dependencies explicitly 2022-11-10 10:17:18 -05:00
xenfb.c hw/display: fix tab indentation 2022-11-08 10:23:32 +01:00
xlnx_dp.c xlnx_dp: drop unsupported AUXCommand in xlnx_dp_aux_set_command 2022-08-08 11:40:06 +02:00