diff options
| author | Jane Malalane <[email protected]> | 2022-07-29 08:04:16 +0100 |
|---|---|---|
| committer | Juergen Gross <[email protected]> | 2022-08-12 11:28:21 +0200 |
| commit | b1c3497e604ddccea5af4071831ed0e4680fb35e (patch) | |
| tree | 108b8bd765f1e0496592013bb988ac329ca19de9 /arch/x86/xen/enlighten.c | |
| parent | 251e90e7e346a23742b90e2c4db19d322e071d99 (diff) | |
x86/xen: Add support for HVMOP_set_evtchn_upcall_vector
Implement support for the HVMOP_set_evtchn_upcall_vector hypercall in
order to set the per-vCPU event channel vector callback on Linux and
use it in preference of HVM_PARAM_CALLBACK_IRQ.
If the per-VCPU vector setup is successful on BSP, use this method
for the APs. If not, fallback to the global vector-type callback.
Also register callback_irq at per-vCPU event channel setup to trick
toolstack to think the domain is enlightened.
Suggested-by: "Roger Pau Monné" <[email protected]>
Signed-off-by: Jane Malalane <[email protected]>
Reviewed-by: Boris Ostrovsky <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
Diffstat (limited to 'arch/x86/xen/enlighten.c')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 30c6e986a6cd..b8db2148c07d 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -51,7 +51,7 @@ EXPORT_SYMBOL_GPL(xen_start_info); struct shared_info xen_dummy_shared_info; -__read_mostly int xen_have_vector_callback; +__read_mostly bool xen_have_vector_callback = true; EXPORT_SYMBOL_GPL(xen_have_vector_callback); /* |