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2012-12-14pseries: Update SLOF for NVRAM supportDavid Gibson1-0/+0
Now that we have implemented PAPR compatible NVRAM interfaces in qemu, this updates the SLOF firmware to actually initialize and use the NVRAM as a PAPR guest firmware is expected to do. This SLOF update also includes an ugly but useful workaround for a bug in the SLES11 installer which caused it to fail under KVM. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-08-15pseries: Update SLOF firmware imageDavid Gibson1-0/+0
This updates SLOF to handle the necessary device tree properties for MSI and MSI-X. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-08-15pseries: Update SLOFBenjamin Herrenschmidt1-0/+0
This patch updates the SLOF version, introducing a number of fixes: * add proper graphics support * fix bugs with graphical terminal under grub2 * fix bugs in handling of 64-bit unit addresses * fix VSCSI representation to be closer to PowerVM * fix bugs which caused grub2 to crash Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-03-15pseries: Update SLOF firmware imageDavid Gibson1-0/+0
This patch updates the SLOF firmware image used on the pseries machine. The new version adds support for Cirrus VGA and virtfs, as well as including a number of bugfixes. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-01-21pseries: SLOF PCI flag dayBenjamin Herrenschmidt1-0/+0
Currently on the pseries machine the SLOF firmware is used normally, but we bypass it when -kernel is specified. Having these two different boot paths can cause some confusion. In particular at present we need to "probe" the (emulated) PCI bus and produce device tree nodes for the PCI devices in qemu, for the -kernel case. In the SLOF case, it takes the device tree from qemu adds some stuff to it then passes it on to the kernel. It's been decided that a better approach is to always boot through SLOF, even when using -kernel. WIth this approach we can leave PCI probing and device node creation to SLOF in all cases which removes a bunch of code in qemu, and avoids iterating the PCI devices from the machine specific init code which we're not supposed to do. This patch changes qemu to always boot through SLOF, and not to create PCI nodes. Simultaneously it updates the included version of SLOF (submodule and binary image) to one which supports (and requires) the new approach. The new SLOF version also includes a number of unrelated enhancements: support for booting from virtio-pci devices and e1000, greatly improved FCode support and many bugfixes. It also makes SLOF ready to be used even when specifying a kernel on the qemu command line. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-30pseries: Update SLOF firmware imageDavid Gibson1-0/+0
This patch is a general update to the SLOF firmware image used on the pseries machine. This doesn't contain updates for specific features but contains a number of bugfixes and enhancements in the main SLOF tree from Thomas Huth. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-30pseries: Update SLOF firmware imageDavid Gibson1-0/+0
This patch updates the SLOF submodule and precompiled image. The new SLOF versions contains two changes of note: * The previous SLOF has a bug in SCSI condition handling that was exposed by recent updates to qemu's SCSI emulation. This update fixes the bug. * The previous SLOF has a bug in its addressing of SCSI devices, which can be exposed under certain conditions. The new SLOF also fixes this. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-04-01Add SLOF-based partition firmware for pSeries machine, allowing more boot ↵David Gibson1-0/+0
options Currently, the emulated pSeries machine requires the use of the -kernel parameter in order to explicitly load a guest kernel. This means booting from the virtual disk, cdrom or network is not possible. This patch addresses this limitation by inserting a within-partition firmware image (derived from the "SLOF" free Open Firmware project). If -kernel is not specified, qemu will now load the SLOF image, which has access to the qemu boot device list through the device tree, and can boot from any of the usual virtual devices. In order to support the new firmware, an extension to the emulated machine/hypervisor is necessary. Unlike Linux, which expects multi-CPU entry to be handled kexec() style, the SLOF firmware expects only one CPU to be active at entry, and to use a hypervisor RTAS method to enable the other CPUs one by one. This patch also implements this 'start-cpu' method, so that SLOF can start the secondary CPUs and marshal them into the kexec() holding pattern ready for entry into the guest OS. Linux should, and in the future might directly use the start-cpu method to enable initially disabled CPUs, but for now it does require kexec() entry. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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