On 04/30/2017 10:48 PM, Sergej Proskurin wrote: > The function p2m_mem_access_check_and_get_page in mem_access.c > translates a gva to an ipa by means of the hardware functionality > implemented in the function gva_to_ipa. If mem_access is active, > hardware-based gva to ipa translation might fail, as gva_to_ipa uses the > guest's translation tables, access to which might be restricted by the > active VTTBR. To address this issue, we perform the gva to ipa > translation in software. > > Signed-off-by: Sergej Proskurin <prosku...@sec.in.tum.de> > --- > Cc: Razvan Cojocaru <rcojoc...@bitdefender.com> > Cc: Tamas K Lengyel <ta...@tklengyel.com> > Cc: Stefano Stabellini <sstabell...@kernel.org> > Cc: Julien Grall <julien.gr...@arm.com> > --- > xen/arch/arm/mem_access.c | 140 > +++++++++++++++++++++++++++++++++++++++++++++- > 1 file changed, 139 insertions(+), 1 deletion(-)
My ARM knowledge is scant to say the least, and I have no way to test this code, so I'll leave it to Tamas who has done some ARM work in the past. In any case - to state the obvious - the main acks here I believe are Julien and Stefano. Thanks, Razvan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
