* [PATCH MANUALSEL 4.4] KVM: PPC: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
@ 2021-11-23 16:37 Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2021-11-23 16:37 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Vitaly Kuznetsov, Paolo Bonzini, Sasha Levin, mpe, paulus, david,
bharata, clg, farosas, jgross, ndesaulniers, ravi.bangoria,
christophe.leroy, npiggin, linuxppc-dev
From: Vitaly Kuznetsov <vkuznets@redhat.com>
[ Upstream commit b7915d55b1ac0e68a7586697fa2d06c018135c49 ]
It doesn't make sense to return the recommended maximum number of
vCPUs which exceeds the maximum possible number of vCPUs.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211116163443.88707-4-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kvm/powerpc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index a3b182dcb8236..823ca801b0507 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -555,9 +555,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
* implementations just count online CPUs.
*/
if (hv_enabled)
- r = num_present_cpus();
+ r = min_t(unsigned int, num_present_cpus(), KVM_MAX_VCPUS);
else
- r = num_online_cpus();
+ r = min_t(unsigned int, num_online_cpus(), KVM_MAX_VCPUS);
break;
case KVM_CAP_NR_MEMSLOTS:
r = KVM_USER_MEM_SLOTS;
--
2.33.0
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2021-11-23 16:38 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-11-23 16:37 [PATCH MANUALSEL 4.4] KVM: PPC: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS Sasha Levin
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).