Ping? Just want to make sure this doesn't go under the radar.
Thanks, Roger. On Mon, Jan 27, 2020 at 07:11:08PM +0100, Roger Pau Monne wrote: > Hello, > > The following series aims to improve the TLB flush times when running > nested Xen, and it's specially beneficial when running in shim mode. > > Only the HAP guest TLB flush is improved, the shadow paging TLB flush is > left as-is, and can be improved later if there's interest. > > For a reference on the performance improvement see patch #7, as it's a > huge increase which can benefit other guests using assisted TLB flushes, > and also the ones using the viridian TLB flush assist (ie: Windows). > > Thanks, Roger. > > Roger Pau Monne (7): > x86/tlb: fix NEED_FLUSH return type > x86/hvm: allow ASID flush when v != current > x86/paging: add TLB flush hooks > x86/hap: improve hypervisor assisted guest TLB flush > x86/tlb: introduce a flush guests TLB flag > x86/tlb: allow disabling the TLB clock > x86/tlb: use Xen L0 assisted TLB flush when available > > xen/arch/x86/flushtlb.c | 24 ++++++--- > xen/arch/x86/guest/hypervisor.c | 10 ++++ > xen/arch/x86/guest/xen/xen.c | 6 +++ > xen/arch/x86/hvm/asid.c | 6 +-- > xen/arch/x86/hvm/hvm.c | 51 ++---------------- > xen/arch/x86/mm/hap/hap.c | 48 +++++++++++++++++ > xen/arch/x86/mm/shadow/common.c | 71 +++++++++++++++++++++++--- > xen/arch/x86/mm/shadow/hvm.c | 2 +- > xen/arch/x86/mm/shadow/multi.c | 17 +++--- > xen/arch/x86/smp.c | 11 ++++ > xen/include/asm-x86/flushtlb.h | 21 +++++++- > xen/include/asm-x86/guest/hypervisor.h | 17 ++++++ > xen/include/asm-x86/hap.h | 3 ++ > xen/include/asm-x86/shadow.h | 12 +++++ > 14 files changed, 220 insertions(+), 79 deletions(-) > > -- > 2.25.0 > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
