From: Christian Ehrhardt <ehrhardt@xxxxxxxxxxxxxxxxxx> Version 3 updates: - guest hypercall infrastructure is now generic (in epapr_hcalls.h) while the kvm specific functions stay in kvm_para.h - the hypercalls now use beat style ABI - dropped the guest coop patch changing wrteei to wrtee (now mfmsr is rewritten avoiding side effects and a lot of corner cases. Additionally this does not need any guest cooperation to be effective) This patch series implements a paravirtualization interface using: - the device tree mechanism to pass hypervisor informations to the guest - hypercalls for guest->host calls - an example exploiter of that interface (magic page) The device tree format used here (=base for the discussions on embedded-hypervisor) is the following. - A node "hypervisor" to show the general availability of some hypervisor data - flags for features like the example "feature,pv-magicpage" setting 1 = available, everything else = unavailable - Some features might need to pass more data and can use an entry in the device tree like the example of "data,pv-magicpage-size" The host side of these patches can be found on kvm-ppc@xxxxxxxxxxxxxxx I hope that eventually this guest patch series (that is modifying the ppc boot process and adding e.g. new ppc fixmaps could go upstream (when discussed and agreed somewhen) via linuxppc-dev, while the kvm host part will go via kvm (Avi Kivity). [patches in series] [PATCH 1/3] kvmppc: read device tree hypervisor node infrastructure [PATCH 2/3] kvmppc: add hypercall infrastructure - guest part [PATCH 3/3] kvmppc: magic page paravirtualization - guest part --- [diffstat] arch/powerpc/kernel/kvm.c | 53 +++++++++++++++++++++++++++++++ b/arch/powerpc/kernel/Makefile | 2 + b/arch/powerpc/kernel/kvm.c | 30 +++++++++++++++++ b/arch/powerpc/kernel/setup_32.c | 3 + b/arch/powerpc/platforms/44x/Kconfig | 7 ++++ b/include/asm-powerpc/epapr_hcalls.h | 59 +++++++++++++++++++++++++++++++++++ b/include/asm-powerpc/fixmap.h | 10 +++++ b/include/asm-powerpc/kvm_para.h | 43 +++++++++++++++++++++++-- include/asm-powerpc/kvm_para.h | 26 +++++++++++++++ 9 files changed, 229 insertions(+), 4 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
