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qemu/pc-bios/spapr-rtas

History

David Gibson 39ac845510 Implement hcall based RTAS for pSeries machines On pSeries machines, operating systems can instantiate "RTAS" (Run-Time Abstraction Services), a runtime component of the firmware which implements a number of low-level, infrequently used operations. On logical partitions under a hypervisor, many of the RTAS functions require hypervisor privilege. For simplicity, therefore, hypervisor systems typically implement the in-partition RTAS as just a tiny wrapper around a hypercall which actually implements the various RTAS functions. This patch implements such a hypercall based RTAS for our emulated pSeries machine. A tiny in-partition "firmware" calls a new hypercall, which looks up available RTAS services in a table. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>		16 years ago
..
Makefile	Implement hcall based RTAS for pSeries machines	16 years ago
spapr-rtas.S	Implement hcall based RTAS for pSeries machines	16 years ago