aboutsummaryrefslogtreecommitdiff
path: root/hw/display/bochs-display.c
AgeCommit message (Collapse)Author
2020-06-22display/bochs-display: fix memory leakCameron Esfahani
Fix memory leak in bochs_display_update(). Leaks 304 bytes per frame. Fixes: 33ebad54056 Signed-off-by: Cameron Esfahani <dirty@apple.com> Message-Id: <d6c26e68db134c7b0c7ce8b61596ca2e65e01e12.1576013209.git.dirty@apple.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> (cherry picked from commit 0d82411d0e38a0de7829f97d04406765c8d2210d) Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2019-08-16Include hw/qdev-properties.h lessMarkus Armbruster
In my "build everything" tree, changing hw/qdev-properties.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Many places including hw/qdev-properties.h (directly or via hw/qdev.h) actually need only hw/qdev-core.h. Include hw/qdev-core.h there instead. hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h and hw/qdev-properties.h, which in turn includes hw/qdev-core.h. Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h. While there, delete a few superfluous inclusions of hw/qdev-core.h. Touching hw/qdev-properties.h now recompiles some 1200 objects. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16Include hw/hw.h exactly where neededMarkus Armbruster
In my "build everything" tree, changing hw/hw.h triggers a recompile of some 2600 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). The previous commits have left only the declaration of hw_error() in hw/hw.h. This permits dropping most of its inclusions. Touching it now recompiles less than 200 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-19-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16Include migration/vmstate.h lessMarkus Armbruster
In my "build everything" tree, changing migration/vmstate.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get VMStateDescription. The previous commit made that unnecessary. Include migration/vmstate.h only where it's still needed. Touching it now recompiles only some 1600 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-16-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-12display/bochs: fix pcie supportGerd Hoffmann
Set QEMU_PCI_CAP_EXPRESS unconditionally in init(), then clear it in realize() in case the device is not connected to a PCIe bus. This makes sure the pci config space allocation is big enough, so accessing the PCIe extended config space doesn't overflow the pci config space buffer. PCI(e) config space is guest writable. Writes are limited by write mask (which probably is also filled with random stuff), so the guest can only flip enabled bits. But I suspect it still might be exploitable, so rather serious because it might be a host escape for the guest. On the other hand the device is probably not yet in widespread use. (For a QEMU version without this commit, a mitigation for the bug is available: use "-device bochs-display" as a conventional pci device only.) Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20190812065221.20907-2-kraxel@redhat.com Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-06-13edid: flip the default to enabledGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20190607083444.32175-1-kraxel@redhat.com
2019-06-12Include qemu/module.h where needed, drop it from qemu-common.hMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
2018-10-15bochs-display: wire up edid supportGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20181005160147.892-3-kraxel@redhat.com
2018-07-02Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* IEC units series (Philippe) * Hyper-V PV TLB flush (Vitaly) * git archive detection (Daniel) * host serial passthrough fix (David) * NPT support for SVM emulation (Jan) * x86 "info mem" and "info tlb" fix (Doug) # gpg: Signature made Mon 02 Jul 2018 16:18:21 BST # gpg: using RSA key BFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (50 commits) tcg: simplify !CONFIG_TCG handling of tb_invalidate_* i386/monitor.c: make addresses canonical for "info mem" and "info tlb" target-i386: Add NPT support serial: Open non-block bsd-user: Use the IEC binary prefix definitions linux-user: Use the IEC binary prefix definitions tests/crypto: Use the IEC binary prefix definitions vl: Use the IEC binary prefix definitions monitor: Use the IEC binary prefix definitions cutils: Do not include "qemu/units.h" directly hw/rdma: Use the IEC binary prefix definitions hw/virtio: Use the IEC binary prefix definitions hw/vfio: Use the IEC binary prefix definitions hw/sd: Use the IEC binary prefix definitions hw/usb: Use the IEC binary prefix definitions hw/net: Use the IEC binary prefix definitions hw/i386: Use the IEC binary prefix definitions hw/ppc: Use the IEC binary prefix definitions hw/mips: Use the IEC binary prefix definitions hw/mips/r4k: Constify params_size ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-02bochs-display: enable vgabiosGerd Hoffmann
Add vgabios binary to pci rom bar. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-07-02hw/display: Use the IEC binary prefix definitionsPhilippe Mathieu-Daudé
It eases code review, unit is explicit. Patch generated using: $ git grep -E '(1024|2048|4096|8192|(<<|>>).?(10|20|30))' hw/ include/hw/ and modified manually. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20180625124238.25339-15-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-04bochs-display: add missing breakGerd Hoffmann
Fixes: CID 1391291 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180525045344.28347-1-kraxel@redhat.com
2018-05-24bochs-display: add pcie supportGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20180522165058.15404-6-kraxel@redhat.com
2018-05-24bochs-display: add dirty tracking supportGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20180522165058.15404-5-kraxel@redhat.com
2018-05-24hw/display: add new bochs-display deviceGerd Hoffmann
After writing up the virtual mdev device emulating a display supporting the bochs vbe dispi interface (mbochs.ko) and seeing how simple it actually is I've figured that would be useful for qemu too. So, here it is, -device bochs-display. It is basically -device VGA without legacy vga emulation. PCI bar 0 is the framebuffer, PCI bar 2 is mmio with the registers. The vga registers are simply not there though, neither in the legacy ioport location nor in the mmio bar. Consequently it is PCI class DISPLAY_OTHER not DISPLAY_VGA. So there is no text mode emulation, no weird video modes (planar, 256color palette), no memory window at 0xa0000. Just a linear framebuffer in the pci memory bar. And the amount of code to emulate this (and therefore the attack surface) is an order of magnitude smaller when compared to vga emulation. Compatibility wise it works with OVMF (latest git master). The bochs-drm.ko linux kernel module can handle it just fine too. So UEFI guests should not see any functional difference to VGA. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20180522165058.15404-4-kraxel@redhat.com
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-18 06:32:32 +0000