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authorJan Kiszka <jan.kiszka@siemens.com>2012-03-06 15:22:02 +0100
committerBlue Swirl <blauwirbel@gmail.com>2012-03-11 11:22:39 +0000
commit3f2cbf0d1a1340bed4a63e05b044c46df93f4768 (patch)
treec6ef216ba1164a3649444af31d266dd53a73c1b1 /gdbstub.c
parentdac6b1b22cbad29ca34735a1e56c9feb9586e3c0 (diff)
target-i386: Mask NX bit from cpu_get_phys_page_debug result
This was a long pending bug, now revealed by the assert in phys_page_find that stumbled over the large page index returned by cpu_get_phys_page_debug for NX-marked pages: We need to mask out NX and all user-definable bits 52..62 from PDEs and the final PTE to avoid corrupting physical addresses. Reviewed-by: Avi Kivity <avi@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'gdbstub.c')
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