[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v5 09/11] xen/mce: add support of vLMCE injection to XEN_MC_inject_v2
Signed-off-by: Haozhong Zhang <haozhong.zhang@xxxxxxxxx> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx> --- Cc: Jan Beulich <jbeulich@xxxxxxxx> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> --- xen/arch/x86/cpu/mcheck/mce.c | 24 +++++++++++++++++++++++- xen/include/public/arch-x86/xen-mca.h | 1 + 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/cpu/mcheck/mce.c b/xen/arch/x86/cpu/mcheck/mce.c index 0e17fb707a..e835ea7943 100644 --- a/xen/arch/x86/cpu/mcheck/mce.c +++ b/xen/arch/x86/cpu/mcheck/mce.c @@ -1486,11 +1486,12 @@ long do_mca(XEN_GUEST_HANDLE_PARAM(xen_mc_t) u_xen_mc) { const cpumask_t *cpumap; cpumask_var_t cmv; + bool broadcast = op->u.mc_inject_v2.flags & XEN_MC_INJECT_CPU_BROADCAST; if (nr_mce_banks == 0) return x86_mcerr("do_mca #MC", -ENODEV); - if ( op->u.mc_inject_v2.flags & XEN_MC_INJECT_CPU_BROADCAST ) + if ( broadcast ) cpumap = &cpu_online_map; else { @@ -1530,6 +1531,27 @@ long do_mca(XEN_GUEST_HANDLE_PARAM(xen_mc_t) u_xen_mc) } break; + case XEN_MC_INJECT_TYPE_LMCE: + if ( !lmce_support ) + { + ret = x86_mcerr("No LMCE support", -EINVAL); + break; + } + if ( broadcast ) + { + ret = x86_mcerr("Broadcast cannot be used with LMCE", -EINVAL); + break; + } + /* Ensure at most one CPU is specified. */ + if ( nr_cpu_ids > cpumask_next(cpumask_first(cpumap), cpumap) ) + { + ret = x86_mcerr("More than one CPU specified for LMCE", + -EINVAL); + break; + } + on_selected_cpus(cpumap, x86_mc_mceinject, NULL, 1); + break; + default: ret = x86_mcerr("Wrong mca type\n", -EINVAL); break; diff --git a/xen/include/public/arch-x86/xen-mca.h b/xen/include/public/arch-x86/xen-mca.h index 7db990723b..dc35267249 100644 --- a/xen/include/public/arch-x86/xen-mca.h +++ b/xen/include/public/arch-x86/xen-mca.h @@ -414,6 +414,7 @@ struct xen_mc_mceinject { #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_TYPE_LMCE 0x2 #define XEN_MC_INJECT_CPU_BROADCAST 0x8 -- 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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