hv: Check pcpu number in Hw platform detect

if the physical number > CONFIG_MAX_PCPU_NUM, will return error and panic. Tracked-On: #861 Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com> Reviewed-by: Li, Fei1 <fei1.li@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
projectacrn · Oct 29, 2018 · 672583a · 672583a
1 parent 298044d
commit 672583a
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/hypervisor/arch/x86/cpu.c b/hypervisor/arch/x86/cpu.c
@@ -259,6 +259,11 @@ static int hardware_detect_support(void)
 		return -ENODEV;
 	}
 
+	if (phys_cpu_num > CONFIG_MAX_PCPU_NUM) {
+		pr_fatal("%s, pcpu number(%d) is out of range\n", __func__, phys_cpu_num);
+		return -ENODEV;
+	}
+
 	ret = check_vmx_mmu_cap();
 	if (ret != 0) {
 		return ret;