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Re: [Qemu-stable] [PATCH for-1.6] isapc: disable kvmvapic
From: |
Cole Robinson |
Subject: |
Re: [Qemu-stable] [PATCH for-1.6] isapc: disable kvmvapic |
Date: |
Fri, 30 Aug 2013 20:14:36 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8 |
On 08/12/2013 06:02 PM, Paolo Bonzini wrote:
> vapic requires the VAPIC ROM to be mapped into RAM. This is not
> possible without PAM hardware. This fixes a segmentation fault
> running with -M isapc.
>
> Cc: address@hidden
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
>
> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> index a19e172..3aa244a 100644
> --- a/hw/i386/pc_piix.c
> +++ b/hw/i386/pc_piix.c
> @@ -743,6 +743,11 @@ static QEMUMachine isapc_machine = {
> .init = pc_init_isa,
> .max_cpus = 1,
> .compat_props = (GlobalProperty[]) {
> + {
> + .driver = "apic-common",
> + .property = "kvmvapic",
> + .value = "off",
> + },
> { /* end of list */ }
> },
> DEFAULT_MACHINE_OPTIONS,
>
There's a Fedora bug about a related invocation crashing:
./x86_64-softmmu/qemu-system-x86_64 -machine accel=kvm -m 128 -vga std -boot d
-cpu pentium -machine isapc
https://bugzilla.redhat.com/show_bug.cgi?id=986790
So I tried your patch on git master, but it gives:
qemu-system-x86_64: Property '.kvmvapic' not found
Changing the property name to 'vapic' fixes both issues for me.
Thanks,
Cole
Re: [Qemu-stable] [PATCH for-1.6] isapc: disable kvmvapic,
Cole Robinson <=