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* Let cpu_[physical]_memory() calls pass a boolean 'is_write' argumentPhilippe Mathieu-Daudé2020-02-201-1/+1
| | | | | | | | | Use an explicit boolean type. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* Clean up inclusion of sysemu/sysemu.hMarkus Armbruster2019-08-161-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | In my "build everything" tree, changing sysemu/sysemu.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Almost a third of its inclusions are actually superfluous. Delete them. Downgrade two more to qapi/qapi-types-run-state.h, and move one from char/serial.h to char/serial.c. hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and stubs/semihost.c define variables declared in sysemu/sysemu.h without including it. The compiler is cool with that, but include it anyway. This doesn't reduce actual use much, as it's still included into widely included headers. The next commit will tackle that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-27-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
* Include sysemu/reset.h a lot lessMarkus Armbruster2019-08-161-0/+2
| | | | | | | | | | | | | | | | | | In my "build everything" tree, changing sysemu/reset.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 main culprit is hw/hw.h, which supposedly includes it for convenience. Include sysemu/reset.h only where it's needed. Touching it now recompiles less than 200 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-9-armbru@redhat.com>
* hw/display/ramfb: initialize fw-config space with xres/ yresHou Qiming2019-05-241-1/+15
| | | | | | | | | | | | | If xres / yres were specified in QEMU command line, write them as an initial resolution to the fw-config space on guest reset, which a later BIOS / OVMF patch can take advantage of. Signed-off-by: HOU Qiming <hqm03ster@gmail.com> Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Message-id: 20190513115731.17588-4-marcel.apfelbaum@gmail.com [fixed malformed patch] Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* hw/display/ramfb: lock guest resolution after it's setHou Qiming2019-05-241-4/+22
| | | | | | | | | | | | | Only allow one resolution change per guest boot, which prevents a crash when the guest writes garbage to the configuration space (e.g. when rebooting). Signed-off-by: HOU Qiming <hqm03ster@gmail.com> Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Message-id: 20190513115731.17588-3-marcel.apfelbaum@gmail.com [fixed malformed patch] Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* hw/display/ramfb: fix guest memory un-mappingHou Qiming2019-05-241-13/+38
| | | | | | | | | | | | Pulled back the `qemu_create_displaysurface_guestmem` function to create the display surface so that the guest memory gets properly unmapped. Signed-off-by: HOU Qiming <hqm03ster@gmail.com> Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Message-id: 20190513115731.17588-2-marcel.apfelbaum@gmail.com [rename the new functions and use QEMU coding style] Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* ramfb: enable vgabiosGerd Hoffmann2018-07-021-0/+1
| | | | | | Add vgabios binary to fw_cfg vgaroms. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* ramfb: fix overflowGerd Hoffmann2018-06-261-2/+2
| | | | | | | | | | | | > CID 1393621: (OVERFLOW_BEFORE_WIDEN) > Potentially overflowing expression "stride * s->height" with type "unsigned > int" (32 bits, unsigned) is evaluated using +32-bit arithmetic, and then used > in a context that expects an expression of type "hwaddr" (64 bits, unsigned). Fix by changing stride from uint32_t to hwaddr. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20180626083120.19515-1-kraxel@redhat.com
* hw/display: add ramfb, a simple boot framebuffer living in guest ramGerd Hoffmann2018-06-181-0/+95
The boot framebuffer is expected to be configured by the firmware, so it uses fw_cfg as interface. Initialization goes as follows: (1) Check whenever etc/ramfb is present. (2) Allocate framebuffer from RAM. (3) Fill struct RAMFBCfg, write it to etc/ramfb. Done. You can write stuff to the framebuffer now, and it should appear automagically on the screen. Note that this isn't very efficient because it does a full display update on each refresh. No dirty tracking. Dirty tracking would have to be active for the whole ram slot, so that wouldn't be very efficient either. For a boot display which is active for a short time only this isn't a big deal. As permanent guest display something better should be used (if possible). This is the ramfb core code. Some windup is needed for display devices which want have a ramfb boot display. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Message-id: 20180613122948.18149-2-kraxel@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>