[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v3 0/2] Add a hvmop for setting the #VE suppress bit
As the code stands right now, after DomU has enabled #VE using HVMOP_altp2m_vcpu_enable_notify, all its pages have the #VE suppress bit cleared, generating #VEs for any EPT violation. There is currently no way to change the value of the #VE suppress bit for a page from a domain; it can only be done in Xen internally using ept_set_entry(). Following the discussion from https://lists.xen.org/archives/html/xen-devel/2017-03/msg01312.html this patch introduces a new hvmop to set this bit and thus have control over which pages generate #VE and which VM-Exit. Adrian Pop (1): x86/altp2m: Add a hvmop for setting the suppress #VE bit Vlad Ioan Topan (1): x86/mm: Change default value for suppress #VE in set_mem_access() tools/libxc/include/xenctrl.h | 2 ++ tools/libxc/xc_altp2m.c | 24 ++++++++++++++++++ xen/arch/x86/hvm/hvm.c | 14 +++++++++++ xen/arch/x86/mm/mem_access.c | 56 +++++++++++++++++++++++++++++++++++++++-- xen/include/public/hvm/hvm_op.h | 11 ++++++++ xen/include/xen/mem_access.h | 3 +++ 6 files changed, 108 insertions(+), 2 deletions(-) -- 2.13.0 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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