[<prev] [next>] [day] [month] [year] [list]
Message-Id: <20211123163742.290040-1-sashal@kernel.org>
Date: Tue, 23 Nov 2021 11:37:40 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Vitaly Kuznetsov <vkuznets@...hat.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Sasha Levin <sashal@...nel.org>, mpe@...erman.id.au,
paulus@...abs.org, david@...son.dropbear.id.au,
bharata@...ux.ibm.com, clg@...d.org, farosas@...ux.ibm.com,
jgross@...e.com, ndesaulniers@...gle.com,
ravi.bangoria@...ux.ibm.com, christophe.leroy@...roup.eu,
npiggin@...il.com, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH MANUALSEL 4.4] KVM: PPC: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
From: Vitaly Kuznetsov <vkuznets@...hat.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@...hat.com>
Message-Id: <20211116163443.88707-4-vkuznets@...hat.com>
Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.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
Powered by blists - more mailing lists