The hypercall argument translation area lives in the per-domain mappings in PML4 slot 260. Nothing currently resides in the lower canonical half above the 4GB boundary in a 32bit PV guest.
Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> --- CC: Jan Beulich <jbeul...@suse.com> --- xen/include/asm-x86/config.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/xen/include/asm-x86/config.h b/xen/include/asm-x86/config.h index bc0730f..25af085 100644 --- a/xen/include/asm-x86/config.h +++ b/xen/include/asm-x86/config.h @@ -169,12 +169,8 @@ extern unsigned char boot_edid_info[128]; * Guest-defined use. * 0x00000000f5800000 - 0x00000000ffffffff [168MB, PML4:0] * Read-only machine-to-phys translation table (GUEST ACCESSIBLE). - * 0x0000000100000000 - 0x0000007fffffffff [508GB, PML4:0] - * Unused. - * 0x0000008000000000 - 0x000000ffffffffff [512GB, 2^39 bytes, PML4:1] - * Hypercall argument translation area. - * 0x0000010000000000 - 0x00007fffffffffff [127TB, 2^46 bytes, PML4:2-255] - * Reserved for future use. + * 0x0000000100000000 - 0x00007fffffffffff [128TB-4GB, PML4:0-255] + * Unused / Reserved for future use. */ -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
