[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 13 of 25] libxc: convert mca interface over to hypercall buffers
# HG changeset patch # User Ian Campbell <ian.campbell@xxxxxxxxxx> # Date 1287650255 -3600 # Node ID 2ef7e26cabd8919f5797a22dbd070a4a189063f1 # Parent a688a8de1cf73954974b9dcc46304e9dcc981068 libxc: convert mca interface over to hypercall buffers Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> diff -r a688a8de1cf7 -r 2ef7e26cabd8 tools/libxc/xc_misc.c --- a/tools/libxc/xc_misc.c Thu Oct 21 09:37:35 2010 +0100 +++ b/tools/libxc/xc_misc.c Thu Oct 21 09:37:35 2010 +0100 @@ -153,18 +153,19 @@ int xc_mca_op(xc_interface *xch, struct { int ret = 0; DECLARE_HYPERCALL; + DECLARE_HYPERCALL_BOUNCE(mc, sizeof(*mc), XC_HYPERCALL_BUFFER_BOUNCE_BOTH); + if ( xc_hypercall_bounce_pre(xch, mc) ) + { + PERROR("Could not bounce xen_mc memory buffer"); + return -1; + } mc->interface_version = XEN_MCA_INTERFACE_VERSION; - if ( lock_pages(xch, mc, sizeof(*mc)) ) - { - PERROR("Could not lock xen_mc memory"); - return -EINVAL; - } hypercall.op = __HYPERVISOR_mca; - hypercall.arg[0] = (unsigned long)mc; + hypercall.arg[0] = HYPERCALL_BUFFER_AS_ARG(mc); ret = do_xen_hypercall(xch, &hypercall); - unlock_pages(xch, mc, sizeof(*mc)); + xc_hypercall_bounce_post(xch, mc); return ret; } #endif _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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