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Fri, 08 Jan 2021 08:51:00 -0800 (PST) X-Google-Smtp-Source: ABdhPJwLKnwY7W9tRGNjXkhtSxcLpKbKST9IqD0ZakLhQbKNffOLuDhKByIrq5myOvEz4OnhWAZV6A== X-Received: by 2002:a37:9304:: with SMTP id v4mr4715989qkd.137.1610124660046; Fri, 08 Jan 2021 08:51:00 -0800 (PST) Received: from xz-x1.redhat.com ([142.126.83.202]) by smtp.gmail.com with ESMTPSA id n5sm4954064qkh.126.2021.01.08.08.50.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Jan 2021 08:50:59 -0800 (PST) From: Peter Xu To: qemu-devel@nongnu.org Subject: [PATCH v4 10/13] KVM: Cache kvm slot dirty bitmap size Date: Fri, 8 Jan 2021 11:50:47 -0500 Message-Id: <20210108165050.406906-7-peterx@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210108165050.406906-1-peterx@redhat.com> References: <20210108164601.406146-1-peterx@redhat.com> <20210108165050.406906-1-peterx@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=peterx@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=63.128.21.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.247, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Hyman , "Dr . David Alan Gilbert" , peterx@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Cache it too because we'll reference it more frequently in the future. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Peter Xu --- accel/kvm/kvm-all.c | 1 + include/sysemu/kvm_int.h | 1 + 2 files changed, 2 insertions(+) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 9cb06ec4d1..5339de04cf 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -630,6 +630,7 @@ static void kvm_slot_init_dirty_bitmap(KVMSlot *mem) hwaddr bitmap_size = ALIGN(((mem->memory_size) >> TARGET_PAGE_BITS), /*HOST_LONG_BITS*/ 64) / 8; mem->dirty_bmap = g_malloc0(bitmap_size); + mem->dirty_bmap_size = bitmap_size; } /* Sync dirty bitmap from kernel to KVMSlot.dirty_bmap */ diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h index e0afdd02fd..7472ddb1a7 100644 --- a/include/sysemu/kvm_int.h +++ b/include/sysemu/kvm_int.h @@ -23,6 +23,7 @@ typedef struct KVMSlot int old_flags; /* Dirty bitmap cache for the slot */ unsigned long *dirty_bmap; + unsigned long dirty_bmap_size; /* Cache of the address space ID */ int as_id; /* Cache of the offset in ram address space */ -- 2.26.2