On Tue, Jun 17, 2008 at 04:57:55PM -0700, Luck, Tony wrote: > > +/* > + * Hypercalls without parameter. > + */ > +#define __HCALL0(name,hcall) \ > + GLOBAL_ENTRY(name); \ > + break hcall; \ > > Should Linux code be made aware of the "break" numbers that > are being used for hypercalls (so it doesn't try to re-use > them for something else?) include/asm-ia64/break.h should be > updated with the appropriate stuff (just with a base value > and a comment for how many you are using ... you can still > define all the HYPERPRIVOP_* defines in a separate file). > > -Tony Here is the patch to reserve those numbers. >From 1c9b394c025bb9dcb29dc8240bda68117f577c9d Mon Sep 17 00:00:00 2001 From: Isaku Yamahata <yamahata@xxxxxxxxxxxxx> Date: Thu, 19 Jun 2008 19:07:37 +0900 Subject: [PATCH] ia64/xen: reserve "break" numbers used for xen hypercalls. reserve "break" numbers used for xen hypercalls to avoid reuse for something else. Cc: "Luck, Tony" <tony.luck@xxxxxxxxx> Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx> --- include/asm-ia64/break.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/include/asm-ia64/break.h b/include/asm-ia64/break.h index f034020..e90c40e 100644 --- a/include/asm-ia64/break.h +++ b/include/asm-ia64/break.h @@ -20,4 +20,13 @@ */ #define __IA64_BREAK_SYSCALL 0x100000 +/* + * Xen specific break numbers: + */ +#define __IA64_XEN_HYPERCALL 0x1000 +/* [__IA64_XEN_HYPERPRIVOP_START, __IA64_XEN_HYPERPRIVOP_MAX] is used + for xen hyperprivops */ +#define __IA64_XEN_HYPERPRIVOP_START 0x1 +#define __IA64_XEN_HYPERPRIVOP_MAX 0x1a + #endif /* _ASM_IA64_BREAK_H */ -- 1.5.3 -- yamahata _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
