On 2/7/25 08:42, Zhao Liu wrote:
On Wed, Jul 02, 2025 at 08:03:19AM +0200, Thomas Huth wrote:
Date: Wed,  2 Jul 2025 08:03:19 +0200
From: Thomas Huth <th...@redhat.com>
Subject: [PATCH] accel/kvm: Adjust the note about the minimum required
  kernel version

From: Thomas Huth <th...@redhat.com>

Since commit 126e7f78036 ("kvm: require KVM_CAP_IOEVENTFD and
KVM_CAP_IOEVENTFD_ANY_LENGTH") we require at least kernel 4.4 to
be able to use KVM. Adjust the upgrade_note accordingly.
While we're at it, remove the text about kvm-kmod and the
SourceForge URL since this is not actively maintained anymore.

Fixes: 126e7f78036 ("kvm: require KVM_CAP_IOEVENTFD and 
KVM_CAP_IOEVENTFD_ANY_LENGTH")
Signed-off-by: Thomas Huth <th...@redhat.com>
---
  accel/kvm/kvm-all.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)

I just mentioned the kernel version in another patch thread. I found
x86 doc said it requires v4.5 or newer ("OS requirements" section in
docs/system/target-i386.rst).

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d095d1b98f8..e3302b087f4 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -2571,8 +2571,7 @@ static int kvm_init(MachineState *ms)
  {
      MachineClass *mc = MACHINE_GET_CLASS(ms);
      static const char upgrade_note[] =
-        "Please upgrade to at least kernel 2.6.29 or recent kvm-kmod\n"
-        "(see http://sourceforge.net/projects/kvm).\n";
+        "Please upgrade to at least kernel 4.4.\n";

Using 4.4 or 4.5:

Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>

      const struct {
          const char *name;
          int num;
--
2.50.0





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