[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 11 of 25] libxc: convert flask interfaces over to hypercall buffers
# HG changeset patch # User Ian Campbell <ian.campbell@xxxxxxxxxx> # Date 1287650255 -3600 # Node ID 9986007519dce12dd0503f88cc32f415a5f11c3d # Parent a4430532beb9ddc8c48d80b45591fb25a139db8c libxc: convert flask interfaces over to hypercall buffers Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> diff -r a4430532beb9 -r 9986007519dc tools/libxc/xc_flask.c --- a/tools/libxc/xc_flask.c Thu Oct 21 09:37:34 2010 +0100 +++ b/tools/libxc/xc_flask.c Thu Oct 21 09:37:35 2010 +0100 @@ -40,15 +40,16 @@ int xc_flask_op(xc_interface *xch, flask { int ret = -1; DECLARE_HYPERCALL; + DECLARE_HYPERCALL_BOUNCE(op, sizeof(*op), XC_HYPERCALL_BUFFER_BOUNCE_BOTH); + + if ( xc_hypercall_bounce_pre(xch, op) ) + { + PERROR("Could not bounce memory for flask op hypercall"); + goto out; + } hypercall.op = __HYPERVISOR_xsm_op; - hypercall.arg[0] = (unsigned long)op; - - if ( lock_pages(xch, op, sizeof(*op)) != 0 ) - { - PERROR("Could not lock memory for Xen hypercall"); - goto out; - } + hypercall.arg[0] = HYPERCALL_BUFFER_AS_ARG(op); if ( (ret = do_xen_hypercall(xch, &hypercall)) < 0 ) { @@ -56,7 +57,7 @@ int xc_flask_op(xc_interface *xch, flask fprintf(stderr, "XSM operation failed!\n"); } - unlock_pages(xch, op, sizeof(*op)); + xc_hypercall_bounce_post(xch, op); out: return ret; _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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