[Xen-changelog] [xen-unstable] libxc: Export do_mca hypercall to user space tools.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1265189937 0
# Node ID a7546e45ca8352f9ea62416d53a44abeef365c85
# Parent  09dd83d09f49c108647b00d81669af4ffb03ae1c
libxc: Export do_mca hypercall to user space tools.

This is mainly for software trigger MCE operation, so that test suites
can trigger software MCE.

Signed-off-by: Jiang, Yunhong <yunhong.jiang@xxxxxxxxx>
---
 tools/libxc/xc_misc.c |   21 +++++++++++++++++++++
 tools/libxc/xenctrl.h |    2 ++
 2 files changed, 23 insertions(+)

diff -r 09dd83d09f49 -r a7546e45ca83 tools/libxc/xc_misc.c
--- a/tools/libxc/xc_misc.c     Wed Feb 03 09:38:00 2010 +0000
+++ b/tools/libxc/xc_misc.c     Wed Feb 03 09:38:57 2010 +0000
@@ -95,6 +95,27 @@ int xc_sched_id(int xc_handle,
 
     return 0;
 }
+
+#if defined(__i386__) || defined(__x86_64__)
+int xc_mca_op(int xc_handle, struct xen_mc *mc)
+{
+    int ret = 0;
+    DECLARE_HYPERCALL;
+
+    mc->interface_version = XEN_MCA_INTERFACE_VERSION;
+    if ( lock_pages(mc, sizeof(mc)) )
+    {
+        PERROR("Could not lock xen_mc memory\n");
+        return -EINVAL;
+    }
+
+    hypercall.op = __HYPERVISOR_mca;
+    hypercall.arg[0] = (unsigned long)mc;
+    ret = do_xen_hypercall(xc_handle, &hypercall);
+    unlock_pages(mc, sizeof(mc));
+    return ret;
+}
+#endif
 
 int xc_perfc_control(int xc_handle,
                      uint32_t opcode,
diff -r 09dd83d09f49 -r a7546e45ca83 tools/libxc/xenctrl.h
--- a/tools/libxc/xenctrl.h     Wed Feb 03 09:38:00 2010 +0000
+++ b/tools/libxc/xenctrl.h     Wed Feb 03 09:38:57 2010 +0000
@@ -37,6 +37,7 @@
 #if defined(__i386__) || defined(__x86_64__)
 #include <xen/foreign/x86_32.h>
 #include <xen/foreign/x86_64.h>
+#include <xen/arch-x86/xen-mca.h>
 #endif
 
 #ifdef __ia64__
@@ -1207,6 +1208,7 @@ int xc_cpuid_apply_policy(int xc,
                           domid_t domid);
 void xc_cpuid_to_str(const unsigned int *regs,
                      char **strs);
+int xc_mca_op(int xc_handle, struct xen_mc *mc);
 #endif
 
 struct xc_px_val {

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