[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 4 of 5] docs: Document HYPERVISOR_update_descriptor
# HG changeset patch # User Ian Campbell <ian.campbell@xxxxxxxxxx> # Date 1351855019 -3600 # Node ID bb43f655bcc863d681fe30cea477f12333dd0cc6 # Parent 433d5d988e30e66a9c1f53a9b2c027692f9de11c docs: Document HYPERVISOR_update_descriptor Mark-up for inclusion of generated docs. Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> diff -r 433d5d988e30 -r bb43f655bcc8 xen/include/public/arch-x86/xen.h --- a/xen/include/public/arch-x86/xen.h Fri Nov 02 12:16:44 2012 +0100 +++ b/xen/include/public/arch-x86/xen.h Fri Nov 02 12:16:59 2012 +0100 @@ -71,7 +71,7 @@ typedef unsigned long xen_pfn_t; #endif /* - * SEGMENT DESCRIPTOR TABLES + * `incontents 200 segdesc Segment Descriptor Tables */ /* * ` enum neg_errnoval @@ -83,11 +83,24 @@ typedef unsigned long xen_pfn_t; * start of the GDT because some stupid OSes export hard-coded selector values * in their ABI. These hard-coded values are always near the start of the GDT, * so Xen places itself out of the way, at the far end of the GDT. + * + * NB The LDT is set using the MMUEXT_SET_LDT op of HYPERVISOR_mmuext_op */ #define FIRST_RESERVED_GDT_PAGE 14 #define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096) #define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8) + +/* + * ` enum neg_errnoval + * ` HYPERVISOR_update_descriptor(u64 pa, u64 desc); + * ` + * ` @pa The machine physical address of the descriptor to + * ` update. Must be either a descriptor page or writable. + * ` @desc The descriptor value to update, in the same format as a + * ` native descriptor table entry. + */ + /* Maximum number of virtual CPUs in legacy multi-processor guests. */ #define XEN_LEGACY_MAX_VCPUS 32 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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