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[Qemu-devel] [PATCH] kvm: Improve upgrade notes when facing unsupported
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH] kvm: Improve upgrade notes when facing unsupported kernels |
Date: |
Sun, 07 Jun 2009 11:30:25 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Users complained that it is not obvious what to do when kvm refuses to
build or run due to an unsupported host kernel, so let's improve the
hints.
Signed-off-by: Jan Kiszka <address@hidden>
---
configure | 6 ++++--
kvm-all.c | 10 +++++++---
2 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/configure b/configure
index 42d46f2..8ccb58c 100755
--- a/configure
+++ b/configure
@@ -1158,7 +1158,9 @@ EOF
| grep "error: " \
| awk -F "error: " '{if (NR>1) printf(", "); printf("%s",$2);}'`
if test "$kvmerr" != "" ; then
- kvm="no - (${kvmerr})"
+ kvm="no - (${kvmerr})\n\
+ NOTE: To enable KVM support, update your kernel to 2.6.29+ or install \
+recent kvm-kmod from http://sourceforge.net/projects/kvm."
fi
fi
fi
@@ -1377,7 +1379,7 @@ echo "vde support $vde"
echo "AIO support $aio"
echo "IO thread $io_thread"
echo "Install blobs $blobs"
-echo "KVM support $kvm"
+echo -e "KVM support $kvm"
echo "fdt support $fdt"
echo "preadv support $preadv"
diff --git a/kvm-all.c b/kvm-all.c
index dc2ded5..8567ac9 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -396,6 +396,9 @@ int kvm_check_extension(KVMState *s, unsigned int extension)
int kvm_init(int smp_cpus)
{
+ 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";
KVMState *s;
int ret;
int i;
@@ -446,7 +449,8 @@ int kvm_init(int smp_cpus)
*/
if (!kvm_check_extension(s, KVM_CAP_USER_MEMORY)) {
ret = -EINVAL;
- fprintf(stderr, "kvm does not support KVM_CAP_USER_MEMORY\n");
+ fprintf(stderr, "kvm does not support KVM_CAP_USER_MEMORY\n%s",
+ upgrade_note);
goto err;
}
@@ -457,8 +461,8 @@ int kvm_init(int smp_cpus)
ret = -EINVAL;
fprintf(stderr,
- "KVM kernel module broken (DESTROY_MEMORY_REGION)\n"
- "Please upgrade to at least kvm-81.\n");
+ "KVM kernel module broken (DESTROY_MEMORY_REGION).\n%s",
+ upgrade_note);
goto err;
}
signature.asc
Description: OpenPGP digital signature
- [Qemu-devel] [PATCH] kvm: Improve upgrade notes when facing unsupported kernels,
Jan Kiszka <=
- [Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Avi Kivity, 2009/06/07
- [Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Jan Kiszka, 2009/06/07
- [Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Avi Kivity, 2009/06/07
- [Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Jan Kiszka, 2009/06/07
- [Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Avi Kivity, 2009/06/07
- [Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Jan Kiszka, 2009/06/07
- [Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Avi Kivity, 2009/06/07
[Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels, Blue Swirl, 2009/06/07