Mailing List Archive

# HG changeset patch
# User Keir Fraser <keir.fraser@citrix.com>
# Date 1276066291 -3600
# Node ID 05bfc5a472b6c607c7a28ca963541751f0dd3618
# Parent b04b812480782034b34d759401ab11e95a86cf71
x86: add CMCI software injection interface

A new command is added. User can set the target CPU map, since the
CMCI can be triggered on some specific CPUs. Please be noticed that
the xenctl_cpumap structure is moved from domctl.h to xen.h.

Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com>
---
xen/arch/x86/cpu/mcheck/mce.c | 53 ++++++++++++++++++++++++++++++++++
xen/include/public/arch-x86/xen-mca.h | 17 ++++++++++
xen/include/public/domctl.h | 5 ---
xen/include/public/xen.h | 11 ++++++-
xen/include/xlat.lst | 1
5 files changed, 81 insertions(+), 6 deletions(-)

diff -r b04b81248078 -r 05bfc5a472b6 xen/arch/x86/cpu/mcheck/mce.c
--- a/xen/arch/x86/cpu/mcheck/mce.c Wed Jun 09 07:42:19 2010 +0100
+++ b/xen/arch/x86/cpu/mcheck/mce.c Wed Jun 09 07:51:31 2010 +0100
@@ -1206,6 +1206,12 @@ static void x86_mc_mceinject(void *data)
__asm__ __volatile__("int $0x12");
}

+static void x86_cmci_inject(void *data)
+{
+ printk("Simulating CMCI on cpu %d\n", smp_processor_id());
+ __asm__ __volatile__("int $0xf7");
+}
+
#if BITS_PER_LONG == 64

#define ID2COOKIE(id) ((mctelem_cookie_t)(id))
@@ -1244,6 +1250,7 @@ CHECK_FIELD_(struct, mc_physcpuinfo, ncp
CHECK_FIELD_(struct, mc_physcpuinfo, ncpus);
# define CHECK_compat_mc_physcpuinfo struct mc_physcpuinfo

+#define CHECK_compat_mc_inject_v2 struct mc_inject_v2
CHECK_mc;
# undef CHECK_compat_mc_fetch
# undef CHECK_compat_mc_physcpuinfo
@@ -1449,6 +1456,52 @@ long do_mca(XEN_GUEST_HANDLE(xen_mc_t) u
mc_mceinject, 1);
break;

+ case XEN_MC_inject_v2:
+ {
+ cpumask_t cpumap;
+
+ if (nr_mce_banks == 0)
+ return x86_mcerr("do_mca #MC", -ENODEV);
+
+ if ( op->u.mc_inject_v2.flags & XEN_MC_INJECT_CPU_BROADCAST )
+ cpus_copy(cpumap, cpu_online_map);
+ else
+ {
+ int gcw;
+
+ cpus_clear(cpumap);
+ xenctl_cpumap_to_cpumask(&cpumap,
+ &op->u.mc_inject_v2.cpumap);
+ gcw = cpus_weight(cpumap);
+ cpus_and(cpumap, cpu_online_map, cpumap);
+
+ if ( cpus_empty(cpumap) )
+ return x86_mcerr("No online CPU passed\n", -EINVAL);
+ else if ( gcw != cpus_weight(cpumap) )
+ dprintk(XENLOG_INFO,
+ "Not all required CPUs are online\n");
+ }
+
+ switch (op->u.mc_inject_v2.flags & XEN_MC_INJECT_TYPE_MASK)
+ {
+ case XEN_MC_INJECT_TYPE_MCE:
+ if ( mce_broadcast &&
+ !cpus_equal(cpumap, cpu_online_map) )
+ printk("Not trigger MCE on all CPUs, may HANG!\n");
+ on_selected_cpus(&cpumap, x86_mc_mceinject, NULL, 1);
+ break;
+ case XEN_MC_INJECT_TYPE_CMCI:
+ if ( !cmci_support )
+ return x86_mcerr(
+ "No CMCI supported in platform\n", -EINVAL);
+ on_selected_cpus(&cpumap, x86_cmci_inject, NULL, 1);
+ break;
+ default:
+ return x86_mcerr("Wrong mca type\n", -EINVAL);
+ }
+ break;
+ }
+
default:
return x86_mcerr("do_mca: bad command", -EINVAL);
}
diff -r b04b81248078 -r 05bfc5a472b6 xen/include/public/arch-x86/xen-mca.h
--- a/xen/include/public/arch-x86/xen-mca.h Wed Jun 09 07:42:19 2010 +0100
+++ b/xen/include/public/arch-x86/xen-mca.h Wed Jun 09 07:51:31 2010 +0100
@@ -404,6 +404,20 @@ struct xen_mc_mceinject {
unsigned int mceinj_cpunr; /* target processor id */
};

+#if defined(__XEN__) || defined(__XEN_TOOLS__)
+#define XEN_MC_inject_v2 6
+#define XEN_MC_INJECT_TYPE_MASK 0x7
+#define XEN_MC_INJECT_TYPE_MCE 0x0
+#define XEN_MC_INJECT_TYPE_CMCI 0x1
+
+#define XEN_MC_INJECT_CPU_BROADCAST 0x8
+
+struct xen_mc_inject_v2 {
+ uint32_t flags;
+ struct xenctl_cpumap cpumap;
+};
+#endif
+
struct xen_mc {
uint32_t cmd;
uint32_t interface_version; /* XEN_MCA_INTERFACE_VERSION */
@@ -413,6 +427,9 @@ struct xen_mc {
struct xen_mc_physcpuinfo mc_physcpuinfo;
struct xen_mc_msrinject mc_msrinject;
struct xen_mc_mceinject mc_mceinject;
+#if defined(__XEN__) || defined(__XEN_TOOLS__)
+ struct xen_mc_inject_v2 mc_inject_v2;
+#endif
} u;
};
typedef struct xen_mc xen_mc_t;
diff -r b04b81248078 -r 05bfc5a472b6 xen/include/public/domctl.h
--- a/xen/include/public/domctl.h Wed Jun 09 07:42:19 2010 +0100
+++ b/xen/include/public/domctl.h Wed Jun 09 07:51:31 2010 +0100
@@ -36,11 +36,6 @@
#include "grant_table.h"

#define XEN_DOMCTL_INTERFACE_VERSION 0x00000007
-
-struct xenctl_cpumap {
- XEN_GUEST_HANDLE_64(uint8) bitmap;
- uint32_t nr_cpus;
-};

/*
* NB. xen_domctl.domain is an IN/OUT parameter for this operation.
diff -r b04b81248078 -r 05bfc5a472b6 xen/include/public/xen.h
--- a/xen/include/public/xen.h Wed Jun 09 07:42:19 2010 +0100
+++ b/xen/include/public/xen.h Wed Jun 09 07:51:31 2010 +0100
@@ -690,13 +690,22 @@ __DEFINE_XEN_GUEST_HANDLE(uint64, uint64

/* Default definitions for macros used by domctl/sysctl. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
+
#ifndef uint64_aligned_t
#define uint64_aligned_t uint64_t
#endif
#ifndef XEN_GUEST_HANDLE_64
#define XEN_GUEST_HANDLE_64(name) XEN_GUEST_HANDLE(name)
#endif
-#endif
+
+#ifndef __ASSEMBLY__
+struct xenctl_cpumap {
+ XEN_GUEST_HANDLE_64(uint8) bitmap;
+ uint32_t nr_cpus;
+};
+#endif
+
+#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */

#endif /* __XEN_PUBLIC_XEN_H__ */

diff -r b04b81248078 -r 05bfc5a472b6 xen/include/xlat.lst
--- a/xen/include/xlat.lst Wed Jun 09 07:42:19 2010 +0100
+++ b/xen/include/xlat.lst Wed Jun 09 07:51:31 2010 +0100
@@ -2,6 +2,7 @@
# ! - needs translation
# ? - needs checking
? dom0_vga_console_info xen.h
+? xenctl_cpumap xen.h
? mmu_update xen.h
! mmuext_op xen.h
! start_info xen.h

_______________________________________________
Xen-changelog mailing list
Xen-changelog@lists.xensource.com
http://lists.xensource.com/xen-changelog