[PATCH v13 09/12] Move related hwpoison page function to accel/kvm/ folder

[Dongjiu Geng <gengdongjiu@huawei.com>]

kvm_hwpoison_page_add() and kvm_unpoison_all() will be used
by both X86 and ARM platforms, so move them to a common accel/kvm/
folder to avoid duplicate code.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
Address Peter's comments to move related hwpoison page function to accel/kvm folder in [1]
Address Paolo's comments to move HWPoisonPage definition back to accel/kvm/kvm-all.c

[1]:
https://lists.gnu.org/archive/html/qemu-arm/2017-09/msg00077.html
https://lists.gnu.org/archive/html/qemu-arm/2017-09/msg00152.html
---
 accel/kvm/kvm-all.c     | 34 ++++++++++++++++++++++++++++++++++
 include/exec/ram_addr.h |  5 +++++
 target/i386/kvm.c       | 33 ---------------------------------
 3 files changed, 39 insertions(+), 33 deletions(-)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 46ce479..98ac06c 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -564,6 +564,39 @@ 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);
+
+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)
@@ -2279,6 +2312,7 @@ bool kvm_arm_supports_user_irq(void)
     return kvm_check_extension(kvm_state, KVM_CAP_ARM_USER_IRQ);
 }
 
+
 #ifdef KVM_CAP_SET_GUEST_DEBUG
 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *cpu,
                                                  target_ulong pc)
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index d017639..2a25315 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -80,6 +80,11 @@ void qemu_ram_free(RAMBlock *block);
 
 int qemu_ram_resize(RAMBlock *block, ram_addr_t newsize, Error **errp);
 
+/* Free and remove all the poisoned pages in the list */
+void kvm_unpoison_all(void *param);
+/* Add a poisoned page to the list */
+void kvm_hwpoison_page_add(ram_addr_t ram_addr);
+
 #define DIRTY_CLIENTS_ALL     ((1 << DIRTY_MEMORY_NUM) - 1)
 #define DIRTY_CLIENTS_NOCODE  (DIRTY_CLIENTS_ALL & ~(1 << DIRTY_MEMORY_CODE))
 
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 6db7783..3e1afb6 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -390,39 +390,6 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
     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);
-    }
-}
-
-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 = g_new(HWPoisonPage, 1);
-    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)
 {
-- 
1.8.3.1