From: Peter Xu <peterx@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Yan Zhao <yan.y.zhao@intel.com>, Jason Wang <jasowang@redhat.com>,
Alex Williamson <alex.williamson@redhat.com>,
peterx@redhat.com, Vitaly Kuznetsov <vkuznets@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
Christophe de Dinechin <dinechin@redhat.com>,
"Michael S . Tsirkin" <mst@redhat.com>,
Kevin Tian <kevin.tian@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>
Subject: [PATCH v6 02/14] KVM: Cache as_id in kvm_memory_slot
Date: Mon, 9 Mar 2020 17:44:12 -0400 [thread overview]
Message-ID: <20200309214424.330363-3-peterx@redhat.com> (raw)
In-Reply-To: <20200309214424.330363-1-peterx@redhat.com>
Cache the address space ID just like the slot ID. It will be used in
order to fill in the dirty ring entries.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
---
include/linux/kvm_host.h | 1 +
virt/kvm/kvm_main.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index bcb9b2ac0791..afa0e9034881 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -346,6 +346,7 @@ struct kvm_memory_slot {
unsigned long userspace_addr;
u32 flags;
short id;
+ u8 as_id;
};
static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 70f03ce0e5c1..e6484dabfc59 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1036,6 +1036,8 @@ int __kvm_set_memory_region(struct kvm *kvm,
new = old = *slot;
+ BUILD_BUG_ON(U8_MAX < KVM_ADDRESS_SPACE_NUM);
+ new.as_id = as_id;
new.id = id;
new.base_gfn = base_gfn;
new.npages = npages;
--
2.24.1
next prev parent reply other threads:[~2020-03-09 21:45 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 21:44 [PATCH v6 00/14] KVM: Dirty ring interface Peter Xu
2020-03-09 21:44 ` [PATCH v6 01/14] KVM: X86: Change parameter for fast_page_fault tracepoint Peter Xu
2020-03-09 21:44 ` Peter Xu [this message]
2020-03-10 14:48 ` [PATCH v6 02/14] KVM: Cache as_id in kvm_memory_slot Sean Christopherson
2020-03-11 15:48 ` Peter Xu
2020-03-09 21:44 ` [PATCH v6 03/14] KVM: X86: Don't track dirty for KVM_SET_[TSS_ADDR|IDENTITY_MAP_ADDR] Peter Xu
2020-03-10 15:06 ` Sean Christopherson
2020-03-11 16:01 ` Peter Xu
2020-03-11 16:11 ` Sean Christopherson
2020-03-11 1:10 ` kbuild test robot
2020-03-11 16:39 ` Peter Xu
2020-03-11 17:09 ` Sean Christopherson
2020-03-18 20:04 ` Peter Xu
2020-03-09 21:44 ` [PATCH v6 04/14] KVM: Pass in kvm pointer into mark_page_dirty_in_slot() Peter Xu
2020-03-09 21:44 ` [PATCH v6 05/14] KVM: X86: Implement ring-based dirty memory tracking Peter Xu
2020-03-09 22:24 ` [PATCH v6 06/14] KVM: Make dirty ring exclusive to dirty bitmap log Peter Xu
2020-03-09 22:25 ` [PATCH v6 07/14] KVM: Don't allocate dirty bitmap if dirty ring is enabled Peter Xu
2020-03-09 22:25 ` [PATCH v6 08/14] KVM: selftests: Always clear dirty bitmap after iteration Peter Xu
2020-03-09 22:25 ` [PATCH v6 09/14] KVM: selftests: Sync uapi/linux/kvm.h to tools/ Peter Xu
2020-03-09 22:25 ` [PATCH v6 10/14] KVM: selftests: Use a single binary for dirty/clear log test Peter Xu
2020-03-10 8:10 ` Andrew Jones
2020-03-11 17:43 ` Peter Xu
2020-03-11 18:47 ` Andrew Jones
2020-03-09 22:25 ` [PATCH v6 11/14] KVM: selftests: Introduce after_vcpu_run hook for dirty " Peter Xu
2020-03-09 22:25 ` [PATCH v6 12/14] KVM: selftests: Add dirty ring buffer test Peter Xu
2020-03-10 8:18 ` Andrew Jones
2020-03-11 17:44 ` Peter Xu
2020-03-09 22:25 ` [PATCH v6 13/14] KVM: selftests: Let dirty_log_test async for dirty ring test Peter Xu
2020-03-10 8:27 ` Andrew Jones
2020-03-11 17:45 ` Peter Xu
2020-03-09 22:25 ` [PATCH v6 14/14] KVM: selftests: Add "-c" parameter to dirty log test Peter Xu
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