From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Auger Subject: [RFC v2 09/19] KVM: arm64: ITS: Interpret MAPD ITT_addr field Date: Wed, 8 Feb 2017 12:43:22 +0100 Message-ID: <1486554212-2774-10-git-send-email-eric.auger@redhat.com> References: <1486554212-2774-1-git-send-email-eric.auger@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: andre.przywara@arm.com, pbonzini@redhat.com, dgilbert@redhat.com, quintela@redhat.com, Prasun.Kapoor@cavium.com To: eric.auger.pro@gmail.com, eric.auger@redhat.com, marc.zyngier@arm.com, christoffer.dall@linaro.org, vijayak@caviumnetworks.com, Vijaya.Kumar@cavium.com, peter.maydell@linaro.org, linux-arm-kernel@lists.infradead.org, drjones@redhat.com, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Return-path: In-Reply-To: <1486554212-2774-1-git-send-email-eric.auger@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org Up to now the MAPD ITT_addr had been ignored. We will need it for save/restore. Let's record it in the its_device struct. Signed-off-by: Eric Auger --- virt/kvm/arm/vgic/vgic-its.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index 56bcd92..694023f 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -99,6 +99,7 @@ struct its_device { /* the head for the list of ITTEs */ struct list_head itt_head; + gpa_t itt_addr; u32 nb_eventid_bits; u32 device_id; }; @@ -562,6 +563,7 @@ static u64 its_cmd_mask_field(u64 *its_cmd, int word, int shift, int size) #define its_cmd_get_collection(cmd) its_cmd_mask_field(cmd, 2, 0, 16) #define its_cmd_get_target_addr(cmd) its_cmd_mask_field(cmd, 2, 16, 32) #define its_cmd_get_validbit(cmd) its_cmd_mask_field(cmd, 2, 63, 1) +#define its_cmd_get_ittaddr(cmd) its_cmd_mask_field(cmd, 2, 8, 44) #define its_cmd_get_size(cmd) its_cmd_mask_field(cmd, 1, 0, 5) /* @@ -832,6 +834,7 @@ static int vgic_its_cmd_handle_mapd(struct kvm *kvm, struct vgic_its *its, u32 device_id = its_cmd_get_deviceid(its_cmd); bool valid = its_cmd_get_validbit(its_cmd); size_t size = its_cmd_get_size(its_cmd); + gpa_t itt_addr = its_cmd_get_ittaddr(its_cmd); struct its_device *device; if (!vgic_its_check_id(its, its->baser_device_table, device_id)) @@ -862,6 +865,7 @@ static int vgic_its_cmd_handle_mapd(struct kvm *kvm, struct vgic_its *its, return -ENOMEM; device->device_id = device_id; + device->itt_addr = itt_addr << 8; device->nb_eventid_bits = size + 1; INIT_LIST_HEAD(&device->itt_head); -- 2.5.5