在 2024/5/24 下午6:00, Michael Tokarev 写道:
23.05.2024 04:46, Song Gao wrote:
vmstate does not save kvm_state_conter,
which can cause VM recovery from disk to fail.

Cc: qemu-sta...@nongnu.org
Signed-off-by: Song Gao <gaos...@loongson.cn>
Acked-by: Peter Xu <pet...@redhat.com>
Message-Id: <20240508024732.3127792-1-gaos...@loongson.cn>
---
  target/loongarch/machine.c | 6 ++++--
  1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/target/loongarch/machine.c b/target/loongarch/machine.c
index 9cd9e848d6..08a7fa5370 100644
--- a/target/loongarch/machine.c
+++ b/target/loongarch/machine.c
@@ -145,8 +145,8 @@ static const VMStateDescription vmstate_tlb = {
  /* LoongArch CPU state */
  const VMStateDescription vmstate_loongarch_cpu = {
      .name = "cpu",
-    .version_id = 1,
-    .minimum_version_id = 1,
+    .version_id = 2,
+    .minimum_version_id = 2,
      .fields = (const VMStateField[]) {
          VMSTATE_UINTTL_ARRAY(env.gpr, LoongArchCPU, 32),
          VMSTATE_UINTTL(env.pc, LoongArchCPU),
@@ -208,6 +208,8 @@ const VMStateDescription vmstate_loongarch_cpu = {
          VMSTATE_UINT64(env.CSR_DERA, LoongArchCPU),
          VMSTATE_UINT64(env.CSR_DSAVE, LoongArchCPU),
  +        VMSTATE_UINT64(kvm_state_counter, LoongArchCPU),
+
          VMSTATE_END_OF_LIST()
      },
      .subsections = (const VMStateDescription * const []) {

Should this really be part of any stable releases?
[...]

Wouldn't it break migration between, say, 8.2 with this change
and without?
Yes, I didn't take this into consideration, please ignore this patch.

Thanks.
Song Gao
Thanks,

/mjt


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