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-rw-r--r--accel/kvm/kvm-all.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 439a4ef..36be117 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -44,6 +44,7 @@
#include "qapi/visitor.h"
#include "qapi/qapi-types-common.h"
#include "qapi/qapi-visit-common.h"
+#include "sysemu/reset.h"
#include "hw/boards.h"
@@ -883,6 +884,39 @@ int kvm_vm_check_extension(KVMState *s, unsigned int extension)
return ret;
}
+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);
+ g_free(page);
+ }
+}
+
+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 = g_new(HWPoisonPage, 1);
+ page->ram_addr = ram_addr;
+ QLIST_INSERT_HEAD(&hwpoison_page_list, page, list);
+}
+
static uint32_t adjust_ioeventfd_endianness(uint32_t val, uint32_t size)
{
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
@@ -2085,6 +2119,8 @@ static int kvm_init(MachineState *ms)
s->kernel_irqchip_split = mc->default_kernel_irqchip_split ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF;
}
+ qemu_register_reset(kvm_unpoison_all, NULL);
+
if (s->kernel_irqchip_allowed) {
kvm_irqchip_create(s);
}