From: Peter Xu <peterx@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Sean Christopherson <sean.j.christopherson@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
peterx@redhat.com, Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: [PATCH RFC 03/15] KVM: Add build-time error check on kvm_run size
Date: Fri, 29 Nov 2019 16:34:53 -0500
Message-ID: <20191129213505.18472-4-peterx@redhat.com> (raw)
In-Reply-To: <20191129213505.18472-1-peterx@redhat.com>
It's already going to reach 2400 Bytes (which is over half of page
size on 4K page archs), so maybe it's good to have this build-time
check in case it overflows when adding new fields.
Signed-off-by: Peter Xu <peterx@redhat.com>
---
virt/kvm/kvm_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 8f8940cc4b84..681452d288cd 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -352,6 +352,8 @@ int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
}
vcpu->run = page_address(page);
+ BUILD_BUG_ON(sizeof(struct kvm_run) > PAGE_SIZE);
+
kvm_vcpu_set_in_spin_loop(vcpu, false);
kvm_vcpu_set_dy_eligible(vcpu, false);
vcpu->preempted = false;
--
2.21.0
next prev parent reply index
Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-29 21:34 [PATCH RFC 00/15] KVM: Dirty ring interface Peter Xu
2019-11-29 21:34 ` [PATCH RFC 01/15] KVM: Move running VCPU from ARM to common code Peter Xu
2019-12-03 19:01 ` Sean Christopherson
2019-12-04 9:42 ` Paolo Bonzini
2019-12-09 22:05 ` Peter Xu
2019-11-29 21:34 ` [PATCH RFC 02/15] KVM: Add kvm/vcpu argument to mark_dirty_page_in_slot Peter Xu
2019-12-02 19:32 ` Sean Christopherson
2019-12-02 20:49 ` Peter Xu
2019-11-29 21:34 ` Peter Xu [this message]
2019-12-02 19:30 ` [PATCH RFC 03/15] KVM: Add build-time error check on kvm_run size Sean Christopherson
2019-12-02 20:53 ` Peter Xu
2019-12-02 22:19 ` Sean Christopherson
2019-12-02 22:40 ` Peter Xu
2019-12-03 5:50 ` Sean Christopherson
2019-12-03 13:41 ` Paolo Bonzini
2019-12-03 17:04 ` Peter Xu
2019-11-29 21:34 ` [PATCH RFC 04/15] KVM: Implement ring-based dirty memory tracking Peter Xu
2019-12-02 20:10 ` Sean Christopherson
2019-12-02 21:16 ` Peter Xu
2019-12-02 21:50 ` Sean Christopherson
2019-12-02 23:09 ` Peter Xu
2019-12-03 13:48 ` Paolo Bonzini
2019-12-03 18:46 ` Sean Christopherson
2019-12-04 10:05 ` Paolo Bonzini
2019-12-07 0:29 ` Sean Christopherson
2019-12-09 9:37 ` Paolo Bonzini
2019-12-09 21:54 ` Peter Xu
2019-12-10 10:07 ` Paolo Bonzini
2019-12-10 15:52 ` Peter Xu
2019-12-10 17:09 ` Paolo Bonzini
2019-12-15 17:21 ` Peter Xu
2019-12-16 10:08 ` Paolo Bonzini
2019-12-16 18:54 ` Peter Xu
2019-12-17 9:01 ` Paolo Bonzini
2019-12-17 16:24 ` Peter Xu
2019-12-17 16:28 ` Paolo Bonzini
2019-12-18 21:58 ` Peter Xu
2019-12-18 22:24 ` Sean Christopherson
2019-12-18 22:37 ` Paolo Bonzini
2019-12-18 22:49 ` Peter Xu
2019-12-17 2:28 ` Tian, Kevin
2019-12-17 16:18 ` Alex Williamson
2019-12-17 16:30 ` Paolo Bonzini
2019-12-18 0:29 ` Tian, Kevin
[not found] ` <AADFC41AFE54684AB9EE6CBC0274A5D19D645E5F@SHSMSX104.ccr.corp.intel.com>
2019-12-17 5:17 ` Tian, Kevin
2019-12-17 5:25 ` Yan Zhao
2019-12-17 16:24 ` Alex Williamson
2019-12-03 19:13 ` Sean Christopherson
2019-12-04 10:14 ` Paolo Bonzini
2019-12-04 14:33 ` Sean Christopherson
2019-12-04 10:38 ` Jason Wang
2019-12-04 11:04 ` Paolo Bonzini
2019-12-04 19:52 ` Peter Xu
2019-12-05 6:51 ` Jason Wang
2019-12-05 12:08 ` Peter Xu
2019-12-05 13:12 ` Jason Wang
2019-12-10 13:25 ` Michael S. Tsirkin
2019-12-10 13:31 ` Paolo Bonzini
2019-12-10 16:02 ` Peter Xu
2019-12-10 21:53 ` Michael S. Tsirkin
2019-12-11 9:05 ` Paolo Bonzini
2019-12-11 13:04 ` Michael S. Tsirkin
2019-12-11 14:54 ` Peter Xu
2019-12-10 21:48 ` Michael S. Tsirkin
2019-12-11 12:53 ` Michael S. Tsirkin
2019-12-11 14:14 ` Paolo Bonzini
2019-12-11 20:59 ` Peter Xu
2019-12-11 22:57 ` Michael S. Tsirkin
2019-12-12 0:08 ` Paolo Bonzini
2019-12-12 7:36 ` Michael S. Tsirkin
2019-12-12 8:12 ` Paolo Bonzini
2019-12-12 10:38 ` Michael S. Tsirkin
2019-12-15 17:33 ` Peter Xu
2019-12-16 9:47 ` Michael S. Tsirkin
2019-12-16 15:07 ` Peter Xu
2019-12-16 15:33 ` Michael S. Tsirkin
2019-12-16 15:47 ` Peter Xu
2019-12-11 17:24 ` Christophe de Dinechin
2019-12-13 20:23 ` Peter Xu
2019-12-14 7:57 ` Paolo Bonzini
2019-12-14 16:26 ` Peter Xu
2019-12-16 9:29 ` Paolo Bonzini
2019-12-16 15:26 ` Peter Xu
2019-12-16 15:31 ` Paolo Bonzini
2019-12-16 15:43 ` Peter Xu
2019-12-17 12:16 ` Christophe de Dinechin
2019-12-17 12:19 ` Paolo Bonzini
2019-12-17 15:38 ` Peter Xu
2019-12-17 16:31 ` Paolo Bonzini
2019-12-17 16:42 ` Peter Xu
2019-12-17 16:48 ` Paolo Bonzini
2019-12-17 19:41 ` Peter Xu
2019-12-18 0:33 ` Paolo Bonzini
2019-12-18 16:32 ` Peter Xu
2019-12-18 16:41 ` Paolo Bonzini
2019-12-20 18:19 ` Peter Xu
2019-11-29 21:34 ` [PATCH RFC 05/15] KVM: Make dirty ring exclusive to dirty bitmap log Peter Xu
2019-11-29 21:34 ` [PATCH RFC 06/15] KVM: Introduce dirty ring wait queue Peter Xu
2019-11-29 21:34 ` [PATCH RFC 07/15] KVM: X86: Implement ring-based dirty memory tracking Peter Xu
2019-11-29 21:34 ` [PATCH RFC 08/15] KVM: selftests: Always clear dirty bitmap after iteration Peter Xu
2019-11-29 21:34 ` [PATCH RFC 09/15] KVM: selftests: Sync uapi/linux/kvm.h to tools/ Peter Xu
2019-11-29 21:35 ` [PATCH RFC 10/15] KVM: selftests: Use a single binary for dirty/clear log test Peter Xu
2019-11-29 21:35 ` [PATCH RFC 11/15] KVM: selftests: Introduce after_vcpu_run hook for dirty " Peter Xu
2019-11-29 21:35 ` [PATCH RFC 12/15] KVM: selftests: Add dirty ring buffer test Peter Xu
2019-11-29 21:35 ` [PATCH RFC 13/15] KVM: selftests: Let dirty_log_test async for dirty ring test Peter Xu
2019-11-29 21:35 ` [PATCH RFC 14/15] KVM: selftests: Add "-c" parameter to dirty log test Peter Xu
2019-11-29 21:35 ` [PATCH RFC 15/15] KVM: selftests: Test dirty ring waitqueue Peter Xu
2019-11-30 8:29 ` [PATCH RFC 00/15] KVM: Dirty ring interface Paolo Bonzini
2019-12-02 2:13 ` Peter Xu
2019-12-03 13:59 ` Paolo Bonzini
2019-12-05 19:30 ` Peter Xu
2019-12-05 19:59 ` Paolo Bonzini
2019-12-05 20:52 ` Peter Xu
2019-12-02 20:21 ` Sean Christopherson
2019-12-02 20:43 ` Peter Xu
2019-12-04 10:39 ` Jason Wang
2019-12-04 19:33 ` Peter Xu
2019-12-05 6:49 ` Jason Wang
2019-12-11 13:41 ` Christophe de Dinechin
2019-12-11 14:16 ` Paolo Bonzini
2019-12-11 17:15 ` Peter Xu
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