@@ -173,7 +173,40 @@ static int get_para_features(CPUState *env)
}
#endif /* CONFIG_KVM_PARA */
+typedef struct HWPoisonPage {
+ ram_addr_t ram_addr;
+ QLIST_ENTRY(HWPoisonPage) list;
+} HWPoisonPage;
+
+static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list =
+ QLIST_HEAD_INITIALIZER(hwpoison_page_list);
+
+static void kvm_unpoison_all(void *param)
+{
+ HWPoisonPage *page, *next_page;
+
+ QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) {
+ QLIST_REMOVE(page, list);
+ qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE);
+ qemu_free(page);
+ }
+}
+
#ifdef KVM_CAP_MCE
+static void kvm_hwpoison_page_add(ram_addr_t ram_addr)
+{
+ HWPoisonPage *page;
+
+ QLIST_FOREACH(page, &hwpoison_page_list, list) {
+ if (page->ram_addr == ram_addr) {
+ return;
+ }
+ }
+ page = qemu_malloc(sizeof(HWPoisonPage));
+ page->ram_addr = ram_addr;
+ QLIST_INSERT_HEAD(&hwpoison_page_list, page, list);
+}
+
static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap,
int *max_banks)
{
@@ -233,6 +266,7 @@ int kvm_arch_on_sigbus_vcpu(CPUState *env, int code, void *addr)
hardware_memory_error();
}
}
+ kvm_hwpoison_page_add(ram_addr);
kvm_mce_inject(env, paddr, code);
} else
#endif /* KVM_CAP_MCE */
@@ -263,6 +297,7 @@ int kvm_arch_on_sigbus(int code, void *addr)
"QEMU itself instead of guest system!: %p\n", addr);
return 0;
}
+ kvm_hwpoison_page_add(ram_addr);
kvm_mce_inject(first_cpu, paddr, code);
} else
#endif /* KVM_CAP_MCE */
@@ -571,6 +606,7 @@ int kvm_arch_init(KVMState *s)
fprintf(stderr, "e820_add_entry() table is full\n");
return ret;
}
+ qemu_register_reset(kvm_unpoison_all, NULL);
return 0;
}