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2022-05-12hw/xen/xen_pt: Resolve igd_passthrough_isa_bridge_create() indirectionBernhard Beschow
Now that igd_passthrough_isa_bridge_create() is implemented within the xen context it may use Xen* data types directly and become xen_igd_passthrough_isa_bridge_create(). This resolves an indirection. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Message-Id: <20220326165825.30794-3-shentey@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-05-12hw/xen/xen_pt: Confine igd-passthrough-isa-bridge to XENBernhard Beschow
igd-passthrough-isa-bridge is only requested in xen_pt but was implemented in pc_piix.c. This caused xen_pt to dependend on i386/pc which is hereby resolved. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Message-Id: <20220326165825.30794-2-shentey@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-02-20Avoid cpu_physical_memory_rw() with a constant is_write argumentPhilippe Mathieu-Daudé
This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Inspired-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-20Let cpu_[physical]_memory() calls pass a boolean 'is_write' argumentPhilippe Mathieu-Daudé
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>
2019-01-14xen: re-name XenDevice to XenLegacyDevice...Paul Durrant
...and xen_backend.h to xen-legacy-backend.h Rather than attempting to convert the existing backend infrastructure to be QOM compliant (which would be hard to do in an incremental fashion), subsequent patches will introduce a completely new framework for Xen PV backends. Hence it is necessary to re-name parts of existing code to avoid name clashes. The re-named 'legacy' infrastructure will be removed once all backends have been ported to the new framework. This patch is purely cosmetic. No functional change. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Acked-by: Anthony Perard <anthony.perard@citrix.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2019-01-14hw/xen/xen_pt_graphics: Don't trust the BIOS ROM contents so muchPeter Maydell
Coverity (CID 796599) points out that xen_pt_setup_vga() trusts the rom->size field in the BIOS ROM from a PCI passthrough VGA device, and uses it as an index into the memory which contains the BIOS image. A corrupt BIOS ROM could therefore cause us to index off the end of the buffer. Check that the size is within bounds before we use it. We are also trusting the pcioffset field, and assuming that the whole rom_header is present; Coverity doesn't notice these, but check them too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2018-06-22xen: Don't use memory_region_init_ram_nomigrate() in ↵Peter Maydell
pci_assign_dev_load_option_rom() The xen pci_assign_dev_load_option_rom() currently creates a RAM memory region with memory_region_init_ram_nomigrate(), and then manually registers it with vmstate_register_ram(). In fact for its only callsite, the 'owner' pointer we use for the init call and the '&dev->qdev' pointer we use for the vmstate_register_ram() call refer to the same object. Simplify the function to only take a pointer to the device once instead of twice, and use memory_region_init_ram() which automatically does the vmstate register for us. Acked-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-22include/qemu/osdep.h: Don't include qapi/error.hMarkus Armbruster
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the Error typedef. Since then, we've moved to include qemu/osdep.h everywhere. Its file comment explains: "To avoid getting into possible circular include dependencies, this file should not include any other QEMU headers, with the exceptions of config-host.h, compiler.h, os-posix.h and os-win32.h, all of which are doing a similar job to this file and are under similar constraints." qapi/error.h doesn't do a similar job, and it doesn't adhere to similar constraints: it includes qapi-types.h. That's in excess of 100KiB of crap most .c files don't actually need. Add the typedef to qemu/typedefs.h, and include that instead of qapi/error.h. Include qapi/error.h in .c files that need it and don't get it now. Include qapi-types.h in qom/object.h for uint16List. Update scripts/clean-includes accordingly. Update it further to match reality: replace config.h by config-target.h, add sysemu/os-posix.h, sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h comment quoted above similarly. This reduces the number of objects depending on qapi/error.h from "all of them" to less than a third. Unfortunately, the number depending on qapi-types.h shrinks only a little. More work is needed for that one. Signed-off-by: Markus Armbruster <armbru@redhat.com> [Fix compilation without the spice devel packages. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-29xen: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-14-git-send-email-peter.maydell@linaro.org
2016-01-21Add Error **errp for xen_pt_setup_vga()Cao jin
To catch the error message. Also modify the caller Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2015-09-10xen, gfx passthrough: add opregion mappingTiejun Chen
The OpRegion shouldn't be mapped 1:1 because the address in the host can't be used in the guest directly. This patch traps read and write access to the opregion of the Intel GPU config space (offset 0xfc). The original patch is from Jean Guyader <jean.guyader@eu.citrix.com> Signed-off-by: Tiejun Chen <tiejun.chen@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2015-09-10xen, gfx passthrough: retrieve VGA BIOS to workTiejun Chen
Now we retrieve VGA bios like kvm stuff in qemu but we need to fix Device Identification in case if its not matched with the real IGD device since Seabios is always trying to compare this ID to work out VGA BIOS. Signed-off-by: Tiejun Chen <tiejun.chen@intel.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2015-09-10xen, gfx passthrough: basic graphics passthrough supportTiejun Chen
basic gfx passthrough support: - add a vga type for gfx passthrough - register/unregister legacy VGA I/O ports and MMIOs for passthrough GFX Signed-off-by: Tiejun Chen <tiejun.chen@intel.com> Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>