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| author |  Juergen Gross <jgross@suse.com>
| 2021-10-28 09:27:47 +0200 |
|---|---|---|
| committer |  Boris Ostrovsky <boris.ostrovsky@oracle.com>
| 2021-11-02 07:45:44 -0500 |
| commit | 12ad6cfc09a5bbe59ba9bae3a103bd3c7130c7c2 (patch) | |
| tree | 851a15db23f686aeddaebf956982ddb329f6fb65 /arch/x86/xen/enlighten_hvm.c | |
| parent | x86/pvh: add prototype for xen_pvh_init() (diff) | |
| download | linux-12ad6cfc09a5bbe59ba9bae3a103bd3c7130c7c2.tar.gz linux-12ad6cfc09a5bbe59ba9bae3a103bd3c7130c7c2.tar.bz2 linux-12ad6cfc09a5bbe59ba9bae3a103bd3c7130c7c2.zip | |
x86/xen: remove xen_have_vcpu_info_placement flag
The flag xen_have_vcpu_info_placement was needed to support Xen
hypervisors older than version 3.4, which didn't support the
VCPUOP_register_vcpu_info hypercall. Today the Linux kernel requires
at least Xen 4.0 to be able to run, so xen_have_vcpu_info_placement
can be dropped (in theory the flag was used to ensure a working kernel
even in case of the VCPUOP_register_vcpu_info hypercall failing for
other reasons than the hypercall not being supported, but the only
cases covered by the flag would be parameter errors, which ought not
to be made anyway).
This allows to let some functions return void now, as they can never
fail.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20211028072748.29862-2-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'arch/x86/xen/enlighten_hvm.c')
| -rw-r--r-- | arch/x86/xen/enlighten_hvm.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c index e68ea5f4ad1c..42300941ec29 100644 --- a/arch/x86/xen/enlighten_hvm.c +++ b/arch/x86/xen/enlighten_hvm.c @@ -163,9 +163,9 @@ static int xen_cpu_up_prepare_hvm(unsigned int cpu) per_cpu(xen_vcpu_id, cpu) = cpu_acpi_id(cpu); else per_cpu(xen_vcpu_id, cpu) = cpu; - rc = xen_vcpu_setup(cpu); - if (rc || !xen_have_vector_callback) - return rc; + xen_vcpu_setup(cpu); + if (!xen_have_vector_callback) + return 0; if (xen_feature(XENFEAT_hvm_safe_pvclock)) xen_setup_timer(cpu); |