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| Started by | Boris Ostrovsky <boris.ostrovsky@oracle.com> |
|---|---|
| First post | 2017-01-26 20:50 +0100 |
| Last post | 2017-01-27 16:40 +0100 |
| Articles | 2 — 2 participants |
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[PATCH v2 9/9] xen/pvh: Use Xen's emergency_restart op for PVH guests Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-26 20:50 +0100
Re: [PATCH v2 9/9] xen/pvh: Use Xen's emergency_restart op for PVH guests Juergen Gross <jgross@suse.com> - 2017-01-27 16:40 +0100
| From | Boris Ostrovsky <boris.ostrovsky@oracle.com> |
|---|---|
| Date | 2017-01-26 20:50 +0100 |
| Subject | [PATCH v2 9/9] xen/pvh: Use Xen's emergency_restart op for PVH guests |
| Message-ID | <t3Ydu-2X9-79@gated-at.bofh.it> |
Using native_machine_emergency_restart (called during reboot) will lead PVH guests to machine_real_restart() where we try to use real_mode_header which is not initialized. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> --- New in v2 arch/x86/xen/enlighten.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 6463382..20ae5d9d 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1915,6 +1915,9 @@ static void __init xen_hvm_guest_init(void) x86_init.irqs.intr_init = xen_init_IRQ; xen_hvm_init_time_ops(); xen_hvm_init_mmu_ops(); + + if (xen_pvh_domain()) + machine_ops.emergency_restart = xen_emergency_restart; #ifdef CONFIG_KEXEC_CORE machine_ops.shutdown = xen_hvm_shutdown; machine_ops.crash_shutdown = xen_hvm_crash_shutdown; -- 1.8.3.1
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| From | Juergen Gross <jgross@suse.com> |
|---|---|
| Date | 2017-01-27 16:40 +0100 |
| Subject | Re: [PATCH v2 9/9] xen/pvh: Use Xen's emergency_restart op for PVH guests |
| Message-ID | <t4gN4-5TS-17@gated-at.bofh.it> |
| In reply to | #1567669 |
On 26/01/17 20:41, Boris Ostrovsky wrote: > Using native_machine_emergency_restart (called during reboot) will > lead PVH guests to machine_real_restart() where we try to use > real_mode_header which is not initialized. > > Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Juergen Gross <jgross@suse.com> Juergen
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