[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 00/11] Add virtual EPT support Xen.
Hi, Guys Do you have comments for this patchset ? Thanks! Xiantao > -----Original Message----- > From: Zhang, Xiantao > Sent: Tuesday, December 11, 2012 1:57 AM > To: xen-devel@xxxxxxxxxxxxxxxxxxx > Cc: JBeulich@xxxxxxxx; keir@xxxxxxx; Dong, Eddie; Nakajima, Jun; Zhang, > Xiantao > Subject: [PATCH 00/11] Add virtual EPT support Xen. > > From: Zhang Xiantao <xiantao.zhang@xxxxxxxxx> > > With virtual EPT support, L1 hyerpvisor can use EPT hardware for L2 guest's > memory virtualization. In this way, L2 guest's performance can be improved > sharply. According to our testing, some benchmarks can show > 5x > performance gain. > > Signed-off-by: Zhang Xiantao <xiantao.zhang@xxxxxxxxx> > > Zhang Xiantao (11): > nestedhap: Change hostcr3 and p2m->cr3 to meaningful words > nestedhap: Change nested p2m's walker to vendor-specific > nested_ept: Implement guest ept's walker > nested_ept: Add permission check for success case > EPT: Make ept data structure or operations neutral > nEPT: Try to enable EPT paging for L2 guest. > nEPT: Sync PDPTR fields if L2 guest in PAE paging mode > nEPT: Use minimal permission for nested p2m. > nEPT: handle invept instruction from L1 VMM > nEPT: expost EPT capablity to L1 VMM > nVMX: Expose VPID capability to nested VMM. > > xen/arch/x86/hvm/hvm.c | 7 +- > xen/arch/x86/hvm/svm/nestedsvm.c | 31 +++ > xen/arch/x86/hvm/svm/svm.c | 3 +- > xen/arch/x86/hvm/vmx/vmcs.c | 2 +- > xen/arch/x86/hvm/vmx/vmx.c | 76 +++++--- > xen/arch/x86/hvm/vmx/vvmx.c | 208 ++++++++++++++++++- > xen/arch/x86/mm/guest_walk.c | 12 +- > xen/arch/x86/mm/hap/Makefile | 1 + > xen/arch/x86/mm/hap/nested_ept.c | 345 > +++++++++++++++++++++++++++++++ > xen/arch/x86/mm/hap/nested_hap.c | 79 +++---- > xen/arch/x86/mm/mm-locks.h | 2 +- > xen/arch/x86/mm/p2m-ept.c | 96 +++++++-- > xen/arch/x86/mm/p2m.c | 44 +++-- > xen/arch/x86/mm/shadow/multi.c | 2 +- > xen/include/asm-x86/guest_pt.h | 8 + > xen/include/asm-x86/hvm/hvm.h | 9 +- > xen/include/asm-x86/hvm/nestedhvm.h | 1 + > xen/include/asm-x86/hvm/svm/nestedsvm.h | 3 + > xen/include/asm-x86/hvm/vmx/vmcs.h | 31 ++- > xen/include/asm-x86/hvm/vmx/vmx.h | 6 +- > xen/include/asm-x86/hvm/vmx/vvmx.h | 29 +++- > xen/include/asm-x86/p2m.h | 17 +- > 22 files changed, 859 insertions(+), 153 deletions(-) create mode 100644 > xen/arch/x86/mm/hap/nested_ept.c _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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