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2019-08-16Include hw/hw.h exactly where neededMarkus Armbruster1-1/+0
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>
2018-10-02hw/scsi/mptendian: Avoid taking address of fields in packed structsPeter Maydell1-80/+83
Taking the address of a field in a packed struct is a bad idea, because it might not be actually aligned enough for that pointer type (and thus cause a crash on dereference on some host architectures). Newer versions of clang warn about this. Avoid the bug by not using the "modify in place" byte swapping functions. This patch was produced with the following simple spatch script: @@ expression E; @@ -le16_to_cpus(&E); +E = le16_to_cpu(E); @@ expression E; @@ -le32_to_cpus(&E); +E = le32_to_cpu(E); @@ expression E; @@ -le64_to_cpus(&E); +E = le64_to_cpu(E); @@ expression E; @@ -cpu_to_le16s(&E); +E = cpu_to_le16(E); @@ expression E; @@ -cpu_to_le32s(&E); +E = cpu_to_le32(E); @@ expression E; @@ -cpu_to_le64s(&E); +E = cpu_to_le64(E); followed by some minor tidying of overlong lines and bad indent. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180927134852.21490-1-peter.maydell@linaro.org> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-12hw: Do not include "sysemu/block-backend.h" if it is not necessaryThomas Huth1-1/+0
After reviewing a patch from Philippe that removes block-backend.h from hw/lm32/milkymist.c, I noticed that this header is included unnecessarily in a lot of other files, too. Remove those unneeded includes to speed up the compilation process a little bit. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1518684912-31637-1-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19scsi: move block/scsi.h to include/scsi/constants.hPaolo Bonzini1-1/+1
Complete the transition by renaming this header, which was shared by block/iscsi.c and the SCSI emulation code. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-09hw: Add support for LSI SAS1068 (mptsas) devicePaolo Bonzini1-0/+204
This adds the SAS1068 device, a SAS disk controller used in VMware that is oldish but widely supported and has decent performance. Unlike megasas, it presents itself as a SAS controller and not as a RAID controller. The device corresponds to the mptsas kernel driver in Linux. A few small things in the device setup are based on Don Slutz's old patch, but the device emulation was written from scratch based on Don's SeaBIOS patch and on the FreeBSD and Linux drivers. It is 2400 lines shorter than Don's patch (and roughly the same size as MegaSAS---also because it doesn't support the similar SPI controller), implements SCSI task management functions (with asynchronous cancellation), supports big-endian hosts, has complete support for migration and follows the QEMU coding standards much more closely. To write the driver, I first split Don's patch in two parts, with the configuration bits in one file and the rest in a separate file. I first left mptconfig.c in place and rewrote the rest, then deleted mptconfig.c as well. The configuration pages are still based mostly on VirtualBox's, though not exactly the same. However, the implementation is completely different. The contents of the pages themselves should not be copyrightable. Signed-off-by: Don Slutz <Don@CloudSwitch.com> Message-Id: <1347382813-5662-1-git-send-email-Don@CloudSwitch.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>