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author | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-01-19 14:41:17 +0000 |
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committer | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-01-19 14:41:17 +0000 |
commit | 2e68ac5f9753eaf889ac524cc7ee1dd117815ffb (patch) | |
tree | 699faf4d7bce06f0f0c9b074ed51a9d0598bb5a3 /tools/libxc/xc_tbuf.c | |
parent | e74411be0bfc740c14e2bd2fb9179c8d2708a2cc (diff) | |
download | xen-2e68ac5f9753eaf889ac524cc7ee1dd117815ffb.tar.gz xen-2e68ac5f9753eaf889ac524cc7ee1dd117815ffb.tar.bz2 xen-2e68ac5f9753eaf889ac524cc7ee1dd117815ffb.zip |
[LIBXC] Handle trace-buffer cpumap endianness.
Original patch from Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'tools/libxc/xc_tbuf.c')
-rw-r--r-- | tools/libxc/xc_tbuf.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/tools/libxc/xc_tbuf.c b/tools/libxc/xc_tbuf.c index 920c5b5abd..266732608a 100644 --- a/tools/libxc/xc_tbuf.c +++ b/tools/libxc/xc_tbuf.c @@ -96,15 +96,19 @@ int xc_tbuf_set_cpu_mask(int xc_handle, uint32_t mask) { DECLARE_SYSCTL; int ret = -1; + uint64_t mask64 = mask; + uint8_t bytemap[sizeof(mask64)]; sysctl.cmd = XEN_SYSCTL_tbuf_op; sysctl.interface_version = XEN_SYSCTL_INTERFACE_VERSION; sysctl.u.tbuf_op.cmd = XEN_SYSCTL_TBUFOP_set_cpu_mask; - set_xen_guest_handle(sysctl.u.tbuf_op.cpu_mask.bitmap, (uint8_t *)&mask); - sysctl.u.tbuf_op.cpu_mask.nr_cpus = sizeof(mask) * 8; + bitmap_64_to_byte(bytemap, &mask64, sizeof (mask64)); - if ( lock_pages(&mask, sizeof(mask)) != 0 ) + set_xen_guest_handle(sysctl.u.tbuf_op.cpu_mask.bitmap, bytemap); + sysctl.u.tbuf_op.cpu_mask.nr_cpus = sizeof(bytemap) * 8; + + if ( lock_pages(&bytemap, sizeof(bytemap)) != 0 ) { PERROR("Could not lock memory for Xen hypercall"); goto out; @@ -112,7 +116,7 @@ int xc_tbuf_set_cpu_mask(int xc_handle, uint32_t mask) ret = do_sysctl(xc_handle, &sysctl); - unlock_pages(&mask, sizeof(mask)); + unlock_pages(&bytemap, sizeof(bytemap)); out: return ret; |