From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/powerpc/kvm/Kconfig | 199 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 199 insertions(+) create mode 100644 kernel/arch/powerpc/kvm/Kconfig (limited to 'kernel/arch/powerpc/kvm/Kconfig') diff --git a/kernel/arch/powerpc/kvm/Kconfig b/kernel/arch/powerpc/kvm/Kconfig new file mode 100644 index 000000000..d4c48506e --- /dev/null +++ b/kernel/arch/powerpc/kvm/Kconfig @@ -0,0 +1,199 @@ +# +# KVM configuration +# + +source "virt/kvm/Kconfig" + +menuconfig VIRTUALIZATION + bool "Virtualization" + ---help--- + Say Y here to get to see options for using your Linux host to run + other operating systems inside virtual machines (guests). + This option alone does not add any kernel code. + + If you say N, all options in this submenu will be skipped and + disabled. + +if VIRTUALIZATION + +config KVM + bool + select PREEMPT_NOTIFIERS + select ANON_INODES + select HAVE_KVM_EVENTFD + select SRCU + +config KVM_BOOK3S_HANDLER + bool + +config KVM_BOOK3S_32_HANDLER + bool + select KVM_BOOK3S_HANDLER + select KVM_MMIO + +config KVM_BOOK3S_64_HANDLER + bool + select KVM_BOOK3S_HANDLER + +config KVM_BOOK3S_PR_POSSIBLE + bool + select KVM_MMIO + select MMU_NOTIFIER + +config KVM_BOOK3S_HV_POSSIBLE + bool + +config KVM_BOOK3S_32 + tristate "KVM support for PowerPC book3s_32 processors" + depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT + select KVM + select KVM_BOOK3S_32_HANDLER + select KVM_BOOK3S_PR_POSSIBLE + ---help--- + Support running unmodified book3s_32 guest kernels + in virtual machines on book3s_32 host processors. + + This module provides access to the hardware capabilities through + a character device node named /dev/kvm. + + If unsure, say N. + +config KVM_BOOK3S_64 + tristate "KVM support for PowerPC book3s_64 processors" + depends on PPC_BOOK3S_64 + select KVM_BOOK3S_64_HANDLER + select KVM + select KVM_BOOK3S_PR_POSSIBLE if !KVM_BOOK3S_HV_POSSIBLE + ---help--- + Support running unmodified book3s_64 and book3s_32 guest kernels + in virtual machines on book3s_64 host processors. + + This module provides access to the hardware capabilities through + a character device node named /dev/kvm. + + If unsure, say N. + +config KVM_BOOK3S_64_HV + tristate "KVM support for POWER7 and PPC970 using hypervisor mode in host" + depends on KVM_BOOK3S_64 && PPC_POWERNV + select KVM_BOOK3S_HV_POSSIBLE + select MMU_NOTIFIER + select CMA + ---help--- + Support running unmodified book3s_64 guest kernels in + virtual machines on POWER7 and PPC970 processors that have + hypervisor mode available to the host. + + If you say Y here, KVM will use the hardware virtualization + facilities of POWER7 (and later) processors, meaning that + guest operating systems will run at full hardware speed + using supervisor and user modes. However, this also means + that KVM is not usable under PowerVM (pHyp), is only usable + on POWER7 (or later) processors and PPC970-family processors, + and cannot emulate a different processor from the host processor. + + If unsure, say N. + +config KVM_BOOK3S_64_PR + tristate "KVM support without using hypervisor mode in host" + depends on KVM_BOOK3S_64 + select KVM_BOOK3S_PR_POSSIBLE + ---help--- + Support running guest kernels in virtual machines on processors + without using hypervisor mode in the host, by running the + guest in user mode (problem state) and emulating all + privileged instructions and registers. + + This is not as fast as using hypervisor mode, but works on + machines where hypervisor mode is not available or not usable, + and can emulate processors that are different from the host + processor, including emulating 32-bit processors on a 64-bit + host. + +config KVM_BOOK3S_HV_EXIT_TIMING + bool "Detailed timing for hypervisor real-mode code" + depends on KVM_BOOK3S_HV_POSSIBLE && DEBUG_FS + ---help--- + Calculate time taken for each vcpu in the real-mode guest entry, + exit, and interrupt handling code, plus time spent in the guest + and in nap mode due to idle (cede) while other threads are still + in the guest. The total, minimum and maximum times in nanoseconds + together with the number of executions are reported in debugfs in + kvm/vm#/vcpu#/timings. The overhead is of the order of 30 - 40 + ns per exit on POWER8. + + If unsure, say N. + +config KVM_BOOKE_HV + bool + +config KVM_EXIT_TIMING + bool "Detailed exit timing" + depends on KVM_E500V2 || KVM_E500MC + ---help--- + Calculate elapsed time for every exit/enter cycle. A per-vcpu + report is available in debugfs kvm/vm#_vcpu#_timing. + The overhead is relatively small, however it is not recommended for + production environments. + + If unsure, say N. + +config KVM_E500V2 + bool "KVM support for PowerPC E500v2 processors" + depends on E500 && !PPC_E500MC + select KVM + select KVM_MMIO + select MMU_NOTIFIER + ---help--- + Support running unmodified E500 guest kernels in virtual machines on + E500v2 host processors. + + This module provides access to the hardware capabilities through + a character device node named /dev/kvm. + + If unsure, say N. + +config KVM_E500MC + bool "KVM support for PowerPC E500MC/E5500/E6500 processors" + depends on PPC_E500MC + select KVM + select KVM_MMIO + select KVM_BOOKE_HV + select MMU_NOTIFIER + ---help--- + Support running unmodified E500MC/E5500/E6500 guest kernels in + virtual machines on E500MC/E5500/E6500 host processors. + + This module provides access to the hardware capabilities through + a character device node named /dev/kvm. + + If unsure, say N. + +config KVM_MPIC + bool "KVM in-kernel MPIC emulation" + depends on KVM && E500 + depends on !PREEMPT_RT_FULL + select HAVE_KVM_IRQCHIP + select HAVE_KVM_IRQFD + select HAVE_KVM_IRQ_ROUTING + select HAVE_KVM_MSI + help + Enable support for emulating MPIC devices inside the + host kernel, rather than relying on userspace to emulate. + Currently, support is limited to certain versions of + Freescale's MPIC implementation. + +config KVM_XICS + bool "KVM in-kernel XICS emulation" + depends on KVM_BOOK3S_64 && !KVM_MPIC + select HAVE_KVM_IRQCHIP + select HAVE_KVM_IRQFD + default y + ---help--- + Include support for the XICS (eXternal Interrupt Controller + Specification) interrupt controller architecture used on + IBM POWER (pSeries) servers. + +source drivers/vhost/Kconfig + +endif # VIRTUALIZATION -- cgit 1.2.3-korg