From: Andrew Cooper Date: Fri, 11 Aug 2017 13:35:48 +0000 (+0100) Subject: x86/config: Fix stale documentation concerning virtual layout X-Git-Tag: archive/raspbian/4.11.1-1+rpi1~1^2~66^2~1699 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=89fa95485e8a576fdaff955cdc4436165a6e9dce;p=xen.git x86/config: Fix stale documentation concerning virtual layout 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 Acked-by: Jan Beulich --- diff --git a/xen/include/asm-x86/config.h b/xen/include/asm-x86/config.h index bc0730fd9d..25af085af0 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. */