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2014-11-03hw/core/loader: implement address translation in uimage loaderMax Filippov
Such address translation is needed when load address recorded in uImage is a virtual address. When the actual load address is requested, return untranslated address: user that needs the translated address can always apply translation function to it and those that need it untranslated don't need to do the inverse translation. Add translation function pointer and its parameter to uimage_load prototype. Update all existing users. No user-visible functional changes. Cc: qemu-stable@nongnu.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Alexander Graf <agraf@suse.de>
2014-09-08loader: Add load_image_size() to replace load_image()Benjamin Herrenschmidt
A subsequent patch to ppc/spapr needs to load the RTAS blob into qemu memory rather than target memory (so it can later be copied into the right spot at machine reset time). I would use load_image() but it is marked deprecated because it doesn't take a buffer size as argument, so let's add load_image_size() that does. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [aik: fixed errors from checkpatch.pl] Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-08-19loader: Add load_image_gzipped function.Richard W.M. Jones
As the name suggests this lets you load a ROM/disk image that is gzipped. It is uncompressed before storing it in guest memory. Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1407831259-2115-2-git-send-email-rjones@redhat.com [PMM: removed stray space before ')'] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-11pc: avoid duplicate names for ROM MRsMichael S. Tsirkin
Since commit 04920fc0faa4760f9c4fc0e73b992b768099be70 loader: store FW CFG ROM files in RAM RAM MRs including ROM files in FW CFGs are created and named using the file basename. This becomes problematic if these names are supplied by user, since the basename might not be unique. There are two cases we care about: - option-rom flag. - option ROM for devices. This triggers e.g. when using rombar=0. At the moment we get an assert. E.g qemu -option-rom /usr/share/ipxe/8086100e.rom -option-rom /usr/share/ipxe.efi/8086100e.rom RAMBlock "/rom@genroms/8086100e.rom" already registered, abort! This is a regression from 1.6. For now let's keep it simple and just avoid creating the MRs in case of option ROMs. when using 1.7 machine types, enable option ROMs in RAM to match that version. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-09loader: rename in_ram/has_mrMichael S. Tsirkin
we put copy of ROMs in MR for migration. but the name rom_in_ram makes one think we load it in guest RAM. Rename has_mr to make intent clearer. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-05elf-loader: add more return codesAlexey Kardashevskiy
The existing load_elf() just returns -1 if it fails to load ELF. However it could be smarter than this and tell more about the failure such as wrong endianness or incompatible platform. This adds additional return codes for wrong architecture, wrong endianness and if the image is not ELF at all. This adds a load_elf_strerror() helper to convert return codes into string messages. This fixes handling of what load_elf() returns for s390x, other callers just check the return value for <0 and this remains unchanged. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-02-10loader: document that errno is setMichael S. Tsirkin
Document that get_image_size sets errno on failure. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-11-10loader: drop return value for rom_add_blob_fixedMichael S. Tsirkin
rom_add_blob never fails, and neither does rom_add_blob_fixed, so there's no need to return value from it. In fact, rom_add_blob_fixed was erroneously returning -1 unconditionally which made the only system that checked the return value -M bamboo fail to start. Drop the return value and drop checks from ppc440_bamboo to fix this failure. Reported-by: Alexander Graf <agraf@suse.de> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14loader: allow adding ROMs in done callbacksMichael S. Tsirkin
Don't abort if machine done callbacks add ROMs. Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14loader: support for unmapped ROM blobsMichael S. Tsirkin
Support ROM blobs not mapped into guest memory: same as ROM files really but use caller's buffer. Support invoking callback on access and return memory pointer making it easier for caller to update memory if necessary. Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-08-21loader: store FW CFG ROM files in RAMMichael S. Tsirkin
ROM files that are put in FW CFG are copied to guest ram, by BIOS, but they are not backed by RAM so they don't get migrated. Each time we change two bytes in such a ROM this breaks cross-version migration: since we can migrate after BIOS has read the first byte but before it has read the second one, getting an inconsistent state. Future-proof this by creating, for each such ROM, an MR serving as the backing store. This MR is never mapped into guest memory, but it's registered as RAM so it's migrated with the guest. Naturally, this only helps for -M 1.7 and up, older machine types will still have the cross-version migration bug. Luckily the race window for the problem to trigger is very small, which is also likely why we didn't notice the cross-version migration bug in testing yet. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2013-07-22hw/loader: Support ramdisk with u-boot headerSoren Brinkmann
Introduce 'load_ramdisk()' which can load "normal" ramdisks and ramdisks with a u-boot header. To enable this and leverage synergies 'load_uimage()' is refactored to accomodate this additional use case. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1373323202-17083-2-git-send-email-soren.brinkmann@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-02refer to FWCfgState explicitlyLaszlo Ersek
Currently some places use pointer-to-void even though they mean pointer-to-FWCfgState. Clean them up. Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-04-08hw: move headers to include/Paolo Bonzini
Many of these should be cleaned up with proper qdev-/QOM-ification. Right now there are many catch-all headers in include/hw/ARCH depending on cpu.h, and this makes it necessary to compile these files per-target. However, fixing this does not belong in these patches. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>