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| author | Thomas Gleixner <tglx@linutronix.de> | 2018-07-06 12:35:56 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-07-06 12:35:56 +0200 |
| commit | 8f63e9230decb06ea9068feaf0845c0eb39ab890 (patch) | |
| tree | a45cee821404ab0c7f7164e20c2f40f5e34ac16b /arch/x86/hyperv | |
| parent | 58ec5e9c9044bd7e1c0bcc6ad822b2e909f49732 (diff) | |
| parent | 1268ed0c474a5c8f165ef386f3310521b5e00e27 (diff) | |
| download | linux-0-day-8f63e9230decb06ea9068feaf0845c0eb39ab890.tar.gz linux-0-day-8f63e9230decb06ea9068feaf0845c0eb39ab890.tar.xz | |
Merge branch 'x86/urgent' into x86/hyperv
Integrate the upstream bug fix to resolve the resulting conflict in
__send_ipi_mask().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/hyperv')
| -rw-r--r-- | arch/x86/hyperv/hv_apic.c | 5 | ||||
| -rw-r--r-- | arch/x86/hyperv/hv_init.c | 5 |
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c index 657a2b8c738a5..0c3c9f8fee77b 100644 --- a/arch/x86/hyperv/hv_apic.c +++ b/arch/x86/hyperv/hv_apic.c @@ -119,6 +119,8 @@ static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector) ipi_arg->vp_set.format = HV_GENERIC_SET_SPARSE_4K; nr_bank = cpumask_to_vpset(&(ipi_arg->vp_set), mask); } + if (nr_bank < 0) + goto ipi_mask_ex_done; if (!nr_bank) ipi_arg->vp_set.format = HV_GENERIC_SET_ALL; @@ -165,6 +167,9 @@ static bool __send_ipi_mask(const struct cpumask *mask, int vector) for_each_cpu(cur_cpu, mask) { vcpu = hv_cpu_number_to_vp_number(cur_cpu); + if (vcpu == VP_INVAL) + return true; + /* * This particular version of the IPI hypercall can * only target upto 64 CPUs. diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index 4c431e1c1effc..1ff420217298e 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -265,7 +265,7 @@ void __init hyperv_init(void) { u64 guest_id, required_msrs; union hv_x64_msr_hypercall_contents hypercall_msr; - int cpuhp; + int cpuhp, i; if (x86_hyper_type != X86_HYPER_MS_HYPERV) return; @@ -293,6 +293,9 @@ void __init hyperv_init(void) if (!hv_vp_index) return; + for (i = 0; i < num_possible_cpus(); i++) + hv_vp_index[i] = VP_INVAL; + hv_vp_assist_page = kcalloc(num_possible_cpus(), sizeof(*hv_vp_assist_page), GFP_KERNEL); if (!hv_vp_assist_page) { |