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authorDongjiu Geng <gengdongjiu@huawei.com>2019-10-15 22:01:39 +0800
committerPeter Maydell <peter.maydell@linaro.org>2019-10-15 15:40:43 +0100
commit92bc6666ac9942872aebfbbeb08ef6239726131a (patch)
treed59ad60a9e3c4ddc0b1c03186b2cb5b2719bbcea
parent0b13f7581bc85adb48c638847664d7f19e2f588a (diff)
downloadqemu-arm-92bc6666ac9942872aebfbbeb08ef6239726131a.tar.gz
KVM: Move hwpoison page related functions into kvm-all.c
kvm_hwpoison_page_add() and kvm_unpoison_all() will both be used by X86 and ARM platforms, so moving them into "accel/kvm/kvm-all.c" to avoid duplicate code. For architectures that don't use the poison-list functionality the reset handler will harmlessly do nothing, so let's register the kvm_unpoison_all() function in the generic kvm_init() function. Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com> Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com> Message-id: 20191015140140.34748-5-zhengxiang9@huawei.com
-rw-r--r--accel/kvm/kvm-all.c36
-rw-r--r--include/sysemu/kvm_int.h12
-rw-r--r--target/i386/kvm.c36
3 files changed, 48 insertions, 36 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d2d96d73e8..6af7ac7ef5 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -41,6 +41,7 @@
#include "hw/irq.h"
#include "sysemu/sev.h"
#include "sysemu/balloon.h"
+#include "sysemu/reset.h"
#include "hw/boards.h"
@@ -856,6 +857,39 @@ 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)
@@ -2031,6 +2065,8 @@ static int kvm_init(MachineState *ms)
goto err;
}
+ qemu_register_reset(kvm_unpoison_all, NULL);
+
if (machine_kernel_irqchip_allowed(ms)) {
kvm_irqchip_create(ms, s);
}
diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h
index ac2d1f8b56..c660a70c51 100644
--- a/include/sysemu/kvm_int.h
+++ b/include/sysemu/kvm_int.h
@@ -42,4 +42,16 @@ void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml,
AddressSpace *as, int as_id);
void kvm_set_max_memslot_size(hwaddr max_slot_size);
+
+/**
+ * kvm_hwpoison_page_add:
+ *
+ * Parameters:
+ * @ram_addr: the address in the RAM for the poisoned page
+ *
+ * Add a poisoned page to the list
+ *
+ * Return: None.
+ */
+void kvm_hwpoison_page_add(ram_addr_t ram_addr);
#endif
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 11b9c854b5..acf785c111 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -24,7 +24,6 @@
#include "sysemu/sysemu.h"
#include "sysemu/hw_accel.h"
#include "sysemu/kvm_int.h"
-#include "sysemu/reset.h"
#include "sysemu/runstate.h"
#include "kvm_i386.h"
#include "hyperv.h"
@@ -514,40 +513,6 @@ uint64_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index)
}
}
-
-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)
{
@@ -2088,7 +2053,6 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
fprintf(stderr, "e820_add_entry() table is full\n");
return ret;
}
- qemu_register_reset(kvm_unpoison_all, NULL);
shadow_mem = machine_kvm_shadow_mem(ms);
if (shadow_mem != -1) {