Re: [PATCH kernel 5/9] KVM: PPC: Account TCE-containing pages in locked_vm

On Tue, Sep 15, 2015 at 08:49:35PM +1000, Alexey Kardashevskiy wrote: > At the moment pages used for TCE tables (in addition to pages addressed > by TCEs) are not counted in locked_vm counter so a malicious userspace > tool can call ioctl(KVM_CREATE_SPAPR_TCE) as many times as RLIMIT_NOFILE and >

Re: [PATCH kernel 7/9] KVM: PPC: Move reusable bits of H_PUT_TCE handler to helpers

On Tue, Sep 15, 2015 at 08:49:37PM +1000, Alexey Kardashevskiy wrote: > Upcoming multi-tce support (H_PUT_TCE_INDIRECT/H_STUFF_TCE hypercalls) > will validate TCE (not to have unexpected bits) and IO address > (to be within the DMA window boundaries). > > This introduces helpers to validate TCE

Re: [PATCH kernel 6/9] KVM: PPC: Replace SPAPR_TCE_SHIFT with IOMMU_PAGE_SHIFT_4K

On Tue, Sep 15, 2015 at 08:49:36PM +1000, Alexey Kardashevskiy wrote: > SPAPR_TCE_SHIFT is used in few places only and since IOMMU_PAGE_SHIFT_4K > can be easily used instead, remove SPAPR_TCE_SHIFT. > > Signed-off-by: Alexey Kardashevskiy Reviewed-by: David Gibson

Re: [PATCH kernel 9/9] KVM: PPC: Add support for multiple-TCE hcalls

On Tue, Sep 15, 2015 at 08:49:39PM +1000, Alexey Kardashevskiy wrote: > This adds real and virtual mode handlers for the H_PUT_TCE_INDIRECT and > H_STUFF_TCE hypercalls for user space emulated devices such as IBMVIO > devices or emulated PCI. These calls allow adding multiple entries > (up to

Re: [PATCH 1/1] KVM: PPC: Increase memslots to 320

On Wed, Nov 04, 2015 at 10:03:48AM +0100, Thomas Huth wrote: > Only using 32 memslots for KVM on powerpc is way too low, you can > nowadays hit this limit quite fast by adding a couple of PCI devices > and/or pluggable memory DIMMs to the guest. > x86 already increased the limit to 512 in total,