[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH for-4.9 v2 00/19] XSA-191 followup
This is the quantity of changes required to fix some edgecases in XSA-191 which were ultimately chosen not to go out in the security fix. The main purpose of this series is to fix emulation sufficiently to allow patch 19 to avoid opencoding all of the segmenation logic. This version of the patches has had some testing in XenServers test infrastructure and nothing appears to have blown up. Changes from v1: * Rework of the safey surrounding software interrupt injection * 5 new patches (1-2,6,12-13) * Fix singlestep handling for emulated pagetable/mmcfg writes Andrew Cooper (19): x86/shadow: Fix #PFs from emulated writes crossing a page boundary x86/emul: Drop X86EMUL_CMPXCHG_FAILED x86/emul: Simplfy emulation state setup x86/emul: Rename hvm_trap to x86_event and move it into the emulation infrastructure x86/emul: Rename HVM_DELIVER_NO_ERROR_CODE to X86_EVENT_NO_EC x86/pv: Implement pv_inject_{event,page_fault,hw_exception}() x86/emul: Remove opencoded exception generation x86/emul: Rework emulator event injection x86/vmx: Use hvm_{get,set}_segment_register() rather than vmx_{get,set}_segment_register() x86/hvm: Reposition the modification of raw segment data from the VMCB/VMCS x86/emul: Avoid raising faults behind the emulators back x86/pv: Avoid raising faults behind the emulators back x86/shadow: Avoid raising faults behind the emulators back x86/hvm: Extend the hvm_copy_*() API with a pagefault_info pointer x86/hvm: Reimplement hvm_copy_*_nofault() in terms of no pagefault_info x86/hvm: Rename hvm_copy_*_guest_virt() to hvm_copy_*_guest_linear() x86/hvm: Avoid __hvm_copy() raising #PF behind the emulators back x86/hvm: Prepare to allow use of system segments for memory references x86/hvm: Use system-segment relative memory accesses tools/tests/x86_emulator/test_x86_emulator.c | 1 + xen/arch/x86/hvm/emulate.c | 151 ++++------- xen/arch/x86/hvm/hvm.c | 367 +++++++++++++++++++-------- xen/arch/x86/hvm/io.c | 4 +- xen/arch/x86/hvm/nestedhvm.c | 2 +- xen/arch/x86/hvm/svm/nestedsvm.c | 13 +- xen/arch/x86/hvm/svm/svm.c | 100 +++----- xen/arch/x86/hvm/vmx/intr.c | 2 +- xen/arch/x86/hvm/vmx/realmode.c | 16 +- xen/arch/x86/hvm/vmx/vmx.c | 109 ++++---- xen/arch/x86/hvm/vmx/vvmx.c | 44 ++-- xen/arch/x86/mm.c | 92 +++++-- xen/arch/x86/mm/shadow/common.c | 40 +-- xen/arch/x86/mm/shadow/multi.c | 87 ++++++- xen/arch/x86/traps.c | 172 ++++++------- xen/arch/x86/x86_emulate/x86_emulate.c | 333 +++++++++++++----------- xen/arch/x86/x86_emulate/x86_emulate.h | 189 +++++++++++--- xen/include/asm-x86/desc.h | 6 + xen/include/asm-x86/domain.h | 26 ++ xen/include/asm-x86/hvm/emulate.h | 3 - xen/include/asm-x86/hvm/hvm.h | 86 +++---- xen/include/asm-x86/hvm/support.h | 42 ++- xen/include/asm-x86/hvm/svm/nestedsvm.h | 6 +- xen/include/asm-x86/hvm/vcpu.h | 2 +- xen/include/asm-x86/hvm/vmx/vmx.h | 2 - xen/include/asm-x86/hvm/vmx/vvmx.h | 4 +- xen/include/asm-x86/mm.h | 1 - 27 files changed, 1167 insertions(+), 733 deletions(-) -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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