Re: [RFC 07/11] powerpc: kvm: the stopper func to cease secondary hwthread

Hi Liu, On 10/17/2014 12:59 AM, kernelf...@gmail.com wrote: To enter guest, primary hwtherad schedules the stopper func on secondary threads and force them into NAP mode. When exit to host,secondary threads hardcode to restore the stack, then switch back to the stopper func, i.e host.

[PATCH v12 0/6] arm/KVM: dirty page logging support for ARMv7 (3.17.0-rc1)

This patch series introduces dirty page logging for ARMv7 and adds some degree of generic dirty logging support for x86, armv7 and later armv8. I implemented Alex's suggestion after he took a look at the patches at kvm forum to simplify the generic/arch split - leaving mips, powerpc, s390,

[PATCH v12 2/6] KVM: Add generic support for dirty page logging

This patch defines KVM_GENERIC_DIRTYLOG, and moves dirty log read function to it's own file virt/kvm/dirtylog.c. x86 is updated to use the generic dirty log interface, selecting KVM_GENERIC_DIRTYLOG in its Kconfig and makefile. No other architectures are affected, each uses it's own version. This

[PATCH v12 1/6] KVM: Add architecture-defined TLB flush support

This patch adds support for architecture implemented VM TLB flush, currently ARMv7 defines HAVE_KVM_ARCH_TLB_FLUSH_ALL. This leaves other architectures unaffected using the generic version. In subsequent patch ARMv7 defines HAVE_KVM_ARCH_TLB_FLUSH_ALL and it's own TLB flush interface.

[PATCH v12 3/6] arm: KVM: Add ARMv7 API to flush TLBs

This patch adds ARMv7 architecture TLB Flush function. Acked-by: Christoffer Dall christoffer.dall at linaro.org Signed-off-by: Mario Smarduch m.smard...@samsung.com --- arch/arm/include/asm/kvm_asm.h |1 + arch/arm/include/asm/kvm_host.h | 12 arch/arm/kvm/Kconfig

[PATCH v12 4/6] arm: KVM: Add initial dirty page locking infrastructure

Patch adds support for initial write protection of VM memlsot. This patch series assumes that huge PUDs will not be used in 2nd stage tables, which is awlays valid on ARMv7. Signed-off-by: Mario Smarduch m.smard...@samsung.com --- arch/arm/include/asm/kvm_host.h |2 +

[PATCH v12 6/6] arm: KVM: ARMv7 dirty page logging 2nd stage page fault

This patch adds support for handling 2nd stage page faults during migration, it disables faulting in huge pages, and dissolves huge pages to page tables. In case migration is canceled huge pages are used again. Reviewed-by: Christoffer Dall christoffer.dall at linaro.org Signed-off-by: Mario

[PATCH v12 5/6] arm: KVM: dirty log read write protect support

This patch adds support to track VM dirty pages, between dirty log reads. Pages that have been dirtied since last log read are write protected again, in preparation of next dirty log read. In addition ARMv7 dirty log read function is pushed up to generic layer. Signed-off-by: Mario Smarduch