From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: [PATCH 2/2] trace: trace hypercalls inside a multicall Date: Thu, 24 May 2012 11:37:09 +0100 Message-ID: <1337855829-15683-3-git-send-email-david.vrabel@citrix.com> References: <1337855829-15683-1-git-send-email-david.vrabel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1337855829-15683-1-git-send-email-david.vrabel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xensource.com Cc: David Vrabel , George Dunlap List-Id: xen-devel@lists.xenproject.org From: David Vrabel Add a trace record for every hypercall inside a multicall. Signed-off-by: David Vrabel --- xen/common/multicall.c | 29 +++++++++++++++++++++++++++++ 1 files changed, 29 insertions(+), 0 deletions(-) diff --git a/xen/common/multicall.c b/xen/common/multicall.c index 6c1a9d7..1da53bb 100644 --- a/xen/common/multicall.c +++ b/xen/common/multicall.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -19,6 +20,32 @@ typedef long ret_t; #define xlat_multicall_entry(mcs) #endif +#ifdef COMPAT +static void __trace_multicall_call(multicall_entry_t *call) +{ + unsigned long args[5]; + int i; + + for (i = 0; i < ARRAY_SIZE(args); i++) + args[i] = call->args[i]; + + __trace_hypercall(call->op, args); +} +#else +static void __trace_multicall_call(multicall_entry_t *call) +{ + __trace_hypercall(call->op, call->args); +} +#endif + +static void trace_multicall_call(multicall_entry_t *call) +{ + if ( !tb_init_done ) + return; + + __trace_multicall_call(call); +} + ret_t do_multicall( XEN_GUEST_HANDLE(multicall_entry_t) call_list, unsigned int nr_calls) @@ -47,6 +74,8 @@ do_multicall( break; } + trace_multicall_call(&mcs->call); + do_multicall_call(&mcs->call); #ifndef NDEBUG -- 1.7.2.5