Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Merge commit. Changes below are compared with the first parent: ae46d2aa.
Changes
40 files changed · +4310 −249
Only the first 600 diff lines are shown. Download the complete patch.
MAINTAINERS
View filediff --git a/MAINTAINERS b/MAINTAINERS
index 9271068..2a26674 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17870,10 +17870,12 @@ L: [email protected]
S: Maintained
F: Documentation/devicetree/bindings/virtio/
F: drivers/virtio/
+F: drivers/vdpa/
F: tools/virtio/
F: drivers/net/virtio_net.c
F: drivers/block/virtio_blk.c
F: include/linux/virtio*.h
+F: include/linux/vdpa.h
F: include/uapi/linux/virtio_*.h
F: drivers/crypto/virtio/
F: mm/balloon_compaction.c
@@ -17941,6 +17943,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
S: Maintained
F: drivers/vhost/
F: include/uapi/linux/vhost.h
+F: include/linux/vhost_iotlb.h
VIRTIO INPUT DRIVER
M: Gerd Hoffmann <[email protected]>
arch/arm64/kvm/Kconfig
View filediff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index a475c68..449386d 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -64,6 +64,4 @@ config KVM_ARM_PMU
config KVM_INDIRECT_VECTORS
def_bool KVM && (HARDEN_BRANCH_PREDICTOR || HARDEN_EL2_VECTORS)
-source "drivers/vhost/Kconfig"
-
endif # VIRTUALIZATION
arch/mips/kvm/Kconfig
View filediff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
index eac25ae..b91d145 100644
--- a/arch/mips/kvm/Kconfig
+++ b/arch/mips/kvm/Kconfig
@@ -72,6 +72,4 @@ config KVM_MIPS_DEBUG_COP0_COUNTERS
If unsure, say N.
-source "drivers/vhost/Kconfig"
-
endif # VIRTUALIZATION
arch/powerpc/kvm/Kconfig
View filediff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 711fca9..12885ed 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -204,6 +204,4 @@ config KVM_XIVE
default y
depends on KVM_XICS && PPC_XIVE_NATIVE && KVM_BOOK3S_HV_POSSIBLE
-source "drivers/vhost/Kconfig"
-
endif # VIRTUALIZATION
arch/s390/kvm/Kconfig
View filediff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index d3db3d7..def3b60 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -55,8 +55,4 @@ config KVM_S390_UCONTROL
If unsure, say N.
-# OK, it's a little counter-intuitive to do this, but it puts it neatly under
-# the virtualization menu.
-source "drivers/vhost/Kconfig"
-
endif # VIRTUALIZATION
arch/x86/kvm/Kconfig
View filediff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 9fea075..d8154e0 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -107,8 +107,4 @@ config KVM_MMU_AUDIT
This option adds a R/W kVM module parameter 'mmu_audit', which allows
auditing of KVM MMU events at runtime.
-# OK, it's a little counter-intuitive to do this, but it puts it neatly under
-# the virtualization menu.
-source "drivers/vhost/Kconfig"
-
endif # VIRTUALIZATION
drivers/Kconfig
View filediff --git a/drivers/Kconfig b/drivers/Kconfig
index 74920bd..dcecc9f 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -138,6 +138,10 @@ source "drivers/virt/Kconfig"
source "drivers/virtio/Kconfig"
+source "drivers/vdpa/Kconfig"
+
+source "drivers/vhost/Kconfig"
+
source "drivers/hv/Kconfig"
source "drivers/xen/Kconfig"
drivers/Makefile
View filediff --git a/drivers/Makefile b/drivers/Makefile
index 7646549..c0cd1b9 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_DMADEVICES) += dma/
obj-y += soc/
obj-$(CONFIG_VIRTIO) += virtio/
+obj-$(CONFIG_VDPA) += vdpa/
obj-$(CONFIG_XEN) += xen/
# regulators early, since some subsystems rely on them to initialize
drivers/misc/mic/Kconfig
View filediff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index b6841ba..8f201d0 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -133,8 +133,4 @@ config VOP
OS and tools for MIC to use with this driver are available from
<http://software.intel.com/en-us/mic-developer>.
-if VOP
-source "drivers/vhost/Kconfig.vringh"
-endif
-
endmenu
drivers/net/caif/Kconfig
View filediff --git a/drivers/net/caif/Kconfig b/drivers/net/caif/Kconfig
index e74e2bb..9db0570 100644
--- a/drivers/net/caif/Kconfig
+++ b/drivers/net/caif/Kconfig
@@ -58,8 +58,4 @@ config CAIF_VIRTIO
---help---
The CAIF driver for CAIF over Virtio.
-if CAIF_VIRTIO
-source "drivers/vhost/Kconfig.vringh"
-endif
-
endif # CAIF_DRIVERS
drivers/vdpa/Kconfig
View filediff --git a/drivers/vdpa/Kconfig b/drivers/vdpa/Kconfig
new file mode 100644
index 0000000..7db1460
--- /dev/null
+++ b/drivers/vdpa/Kconfig
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VDPA
+ tristate
+ help
+ Enable this module to support vDPA device that uses a
+ datapath which complies with virtio specifications with
+ vendor specific control path.
+
+menuconfig VDPA_MENU
+ bool "VDPA drivers"
+ default n
+
+if VDPA_MENU
+
+config VDPA_SIM
+ tristate "vDPA device simulator"
+ depends on RUNTIME_TESTING_MENU
+ select VDPA
+ select VHOST_RING
+ default n
+ help
+ vDPA networking device simulator which loop TX traffic back
+ to RX. This device is used for testing, prototyping and
+ development of vDPA.
+
+config IFCVF
+ tristate "Intel IFC VF VDPA driver"
+ depends on PCI_MSI
+ select VDPA
+ default n
+ help
+ This kernel module can drive Intel IFC VF NIC to offload
+ virtio dataplane traffic to hardware.
+ To compile this driver as a module, choose M here: the module will
+ be called ifcvf.
+
+endif # VDPA_MENU
drivers/vdpa/Makefile
View filediff --git a/drivers/vdpa/Makefile b/drivers/vdpa/Makefile
new file mode 100644
index 0000000..8bbb686
--- /dev/null
+++ b/drivers/vdpa/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_VDPA) += vdpa.o
+obj-$(CONFIG_VDPA_SIM) += vdpa_sim/
+obj-$(CONFIG_IFCVF) += ifcvf/
drivers/vdpa/ifcvf/Makefile
View filediff --git a/drivers/vdpa/ifcvf/Makefile b/drivers/vdpa/ifcvf/Makefile
new file mode 100644
index 0000000..d709915
--- /dev/null
+++ b/drivers/vdpa/ifcvf/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_IFCVF) += ifcvf.o
+ifcvf-$(CONFIG_IFCVF) += ifcvf_main.o ifcvf_base.o
drivers/vdpa/ifcvf/ifcvf_base.c
View filediff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c
new file mode 100644
index 0000000..b61b06e
--- /dev/null
+++ b/drivers/vdpa/ifcvf/ifcvf_base.c
@@ -0,0 +1,389 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel IFC VF NIC driver for virtio dataplane offloading
+ *
+ * Copyright (C) 2020 Intel Corporation.
+ *
+ * Author: Zhu Lingshan <[email protected]>
+ *
+ */
+
+#include "ifcvf_base.h"
+
+static inline u8 ifc_ioread8(u8 __iomem *addr)
+{
+ return ioread8(addr);
+}
+static inline u16 ifc_ioread16 (__le16 __iomem *addr)
+{
+ return ioread16(addr);
+}
+
+static inline u32 ifc_ioread32(__le32 __iomem *addr)
+{
+ return ioread32(addr);
+}
+
+static inline void ifc_iowrite8(u8 value, u8 __iomem *addr)
+{
+ iowrite8(value, addr);
+}
+
+static inline void ifc_iowrite16(u16 value, __le16 __iomem *addr)
+{
+ iowrite16(value, addr);
+}
+
+static inline void ifc_iowrite32(u32 value, __le32 __iomem *addr)
+{
+ iowrite32(value, addr);
+}
+
+static void ifc_iowrite64_twopart(u64 val,
+ __le32 __iomem *lo, __le32 __iomem *hi)
+{
+ ifc_iowrite32((u32)val, lo);
+ ifc_iowrite32(val >> 32, hi);
+}
+
+struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw)
+{
+ return container_of(hw, struct ifcvf_adapter, vf);
+}
+
+static void __iomem *get_cap_addr(struct ifcvf_hw *hw,
+ struct virtio_pci_cap *cap)
+{
+ struct ifcvf_adapter *ifcvf;
+ struct pci_dev *pdev;
+ u32 length, offset;
+ u8 bar;
+
+ length = le32_to_cpu(cap->length);
+ offset = le32_to_cpu(cap->offset);
+ bar = cap->bar;
+
+ ifcvf= vf_to_adapter(hw);
+ pdev = ifcvf->pdev;
+
+ if (bar >= IFCVF_PCI_MAX_RESOURCE) {
+ IFCVF_DBG(pdev,
+ "Invalid bar number %u to get capabilities\n", bar);
+ return NULL;
+ }
+
+ if (offset + length > pci_resource_len(pdev, bar)) {
+ IFCVF_DBG(pdev,
+ "offset(%u) + len(%u) overflows bar%u's capability\n",
+ offset, length, bar);
+ return NULL;
+ }
+
+ return hw->base[bar] + offset;
+}
+
+static int ifcvf_read_config_range(struct pci_dev *dev,
+ uint32_t *val, int size, int where)
+{
+ int ret, i;
+
+ for (i = 0; i < size; i += 4) {
+ ret = pci_read_config_dword(dev, where + i, val + i / 4);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev *pdev)
+{
+ struct virtio_pci_cap cap;
+ u16 notify_off;
+ int ret;
+ u8 pos;
+ u32 i;
+
+ ret = pci_read_config_byte(pdev, PCI_CAPABILITY_LIST, &pos);
+ if (ret < 0) {
+ IFCVF_ERR(pdev, "Failed to read PCI capability list\n");
+ return -EIO;
+ }
+
+ while (pos) {
+ ret = ifcvf_read_config_range(pdev, (u32 *)&cap,
+ sizeof(cap), pos);
+ if (ret < 0) {
+ IFCVF_ERR(pdev,
+ "Failed to get PCI capability at %x\n", pos);
+ break;
+ }
+
+ if (cap.cap_vndr != PCI_CAP_ID_VNDR)
+ goto next;
+
+ switch (cap.cfg_type) {
+ case VIRTIO_PCI_CAP_COMMON_CFG:
+ hw->common_cfg = get_cap_addr(hw, &cap);
+ IFCVF_DBG(pdev, "hw->common_cfg = %p\n",
+ hw->common_cfg);
+ break;
+ case VIRTIO_PCI_CAP_NOTIFY_CFG:
+ pci_read_config_dword(pdev, pos + sizeof(cap),
+ &hw->notify_off_multiplier);
+ hw->notify_bar = cap.bar;
+ hw->notify_base = get_cap_addr(hw, &cap);
+ IFCVF_DBG(pdev, "hw->notify_base = %p\n",
+ hw->notify_base);
+ break;
+ case VIRTIO_PCI_CAP_ISR_CFG:
+ hw->isr = get_cap_addr(hw, &cap);
+ IFCVF_DBG(pdev, "hw->isr = %p\n", hw->isr);
+ break;
+ case VIRTIO_PCI_CAP_DEVICE_CFG:
+ hw->net_cfg = get_cap_addr(hw, &cap);
+ IFCVF_DBG(pdev, "hw->net_cfg = %p\n", hw->net_cfg);
+ break;
+ }
+
+next:
+ pos = cap.cap_next;
+ }
+
+ if (hw->common_cfg == NULL || hw->notify_base == NULL ||
+ hw->isr == NULL || hw->net_cfg == NULL) {
+ IFCVF_ERR(pdev, "Incomplete PCI capabilities\n");
+ return -EIO;
+ }
+
+ for (i = 0; i < IFCVF_MAX_QUEUE_PAIRS * 2; i++) {
+ ifc_iowrite16(i, &hw->common_cfg->queue_select);
+ notify_off = ifc_ioread16(&hw->common_cfg->queue_notify_off);
+ hw->vring[i].notify_addr = hw->notify_base +
+ notify_off * hw->notify_off_multiplier;
+ }
+
+ hw->lm_cfg = hw->base[IFCVF_LM_BAR];
+
+ IFCVF_DBG(pdev,
+ "PCI capability mapping: common cfg: %p, notify base: %p\n, isr cfg: %p, device cfg: %p, multiplier: %u\n",
+ hw->common_cfg, hw->notify_base, hw->isr,
+ hw->net_cfg, hw->notify_off_multiplier);
+
+ return 0;
+}
+
+u8 ifcvf_get_status(struct ifcvf_hw *hw)
+{
+ return ifc_ioread8(&hw->common_cfg->device_status);
+}
+
+void ifcvf_set_status(struct ifcvf_hw *hw, u8 status)
+{
+ ifc_iowrite8(status, &hw->common_cfg->device_status);
+}
+
+void ifcvf_reset(struct ifcvf_hw *hw)
+{
+ ifcvf_set_status(hw, 0);
+ /* flush set_status, make sure VF is stopped, reset */
+ ifcvf_get_status(hw);
+}
+
+static void ifcvf_add_status(struct ifcvf_hw *hw, u8 status)
+{
+ if (status != 0)
+ status |= ifcvf_get_status(hw);
+
+ ifcvf_set_status(hw, status);
+ ifcvf_get_status(hw);
+}
+
+u64 ifcvf_get_features(struct ifcvf_hw *hw)
+{
+ struct virtio_pci_common_cfg __iomem *cfg = hw->common_cfg;
+ u32 features_lo, features_hi;
+
+ ifc_iowrite32(0, &cfg->device_feature_select);
+ features_lo = ifc_ioread32(&cfg->device_feature);
+
+ ifc_iowrite32(1, &cfg->device_feature_select);
+ features_hi = ifc_ioread32(&cfg->device_feature);
+
+ return ((u64)features_hi << 32) | features_lo;
+}
+
+void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset,
+ void *dst, int length)
+{
+ u8 old_gen, new_gen, *p;
+ int i;
+
+ WARN_ON(offset + length > sizeof(struct virtio_net_config));
+ do {
+ old_gen = ifc_ioread8(&hw->common_cfg->config_generation);
+ p = dst;
+ for (i = 0; i < length; i++)
+ *p++ = ifc_ioread8(hw->net_cfg + offset + i);
+
+ new_gen = ifc_ioread8(&hw->common_cfg->config_generation);
+ } while (old_gen != new_gen);
+}
+
+void ifcvf_write_net_config(struct ifcvf_hw *hw, u64 offset,
+ const void *src, int length)
+{
+ const u8 *p;
+ int i;
+
+ p = src;
+ WARN_ON(offset + length > sizeof(struct virtio_net_config));
+ for (i = 0; i < length; i++)
+ ifc_iowrite8(*p++, hw->net_cfg + offset + i);
+}
+
+static void ifcvf_set_features(struct ifcvf_hw *hw, u64 features)
+{
+ struct virtio_pci_common_cfg __iomem *cfg = hw->common_cfg;
+
+ ifc_iowrite32(0, &cfg->guest_feature_select);
+ ifc_iowrite32((u32)features, &cfg->guest_feature);
+
+ ifc_iowrite32(1, &cfg->guest_feature_select);
+ ifc_iowrite32(features >> 32, &cfg->guest_feature);
+}
+
+static int ifcvf_config_features(struct ifcvf_hw *hw)
+{
+ struct ifcvf_adapter *ifcvf;
+
+ ifcvf = vf_to_adapter(hw);
+ ifcvf_set_features(hw, hw->req_features);
+ ifcvf_add_status(hw, VIRTIO_CONFIG_S_FEATURES_OK);
+
+ if (!(ifcvf_get_status(hw) & VIRTIO_CONFIG_S_FEATURES_OK)) {
+ IFCVF_ERR(ifcvf->pdev, "Failed to set FEATURES_OK status\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+u64 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid)
+{
+ struct ifcvf_lm_cfg __iomem *ifcvf_lm;
+ void __iomem *avail_idx_addr;
+ u16 last_avail_idx;
+ u32 q_pair_id;
+
+ ifcvf_lm = (struct ifcvf_lm_cfg __iomem *)hw->lm_cfg;
+ q_pair_id = qid / (IFCVF_MAX_QUEUE_PAIRS * 2);
+ avail_idx_addr = &ifcvf_lm->vring_lm_cfg[q_pair_id].idx_addr[qid % 2];
+ last_avail_idx = ifc_ioread16(avail_idx_addr);
+
+ return last_avail_idx;
+}
+
+int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u64 num)
+{
+ struct ifcvf_lm_cfg __iomem *ifcvf_lm;
+ void __iomem *avail_idx_addr;
+ u32 q_pair_id;
+
+ ifcvf_lm = (struct ifcvf_lm_cfg __iomem *)hw->lm_cfg;
+ q_pair_id = qid / (IFCVF_MAX_QUEUE_PAIRS * 2);
+ avail_idx_addr = &ifcvf_lm->vring_lm_cfg[q_pair_id].idx_addr[qid % 2];
+ hw->vring[qid].last_avail_idx = num;
+ ifc_iowrite16(num, avail_idx_addr);
+
+ return 0;
+}
+
+static int ifcvf_hw_enable(struct ifcvf_hw *hw)
+{
+ struct ifcvf_lm_cfg __iomem *ifcvf_lm;
+ struct virtio_pci_common_cfg __iomem *cfg;
+ struct ifcvf_adapter *ifcvf;
+ u32 i;
+
+ ifcvf_lm = (struct ifcvf_lm_cfg __iomem *)hw->lm_cfg;
+ ifcvf = vf_to_adapter(hw);
+ cfg = hw->common_cfg;
+ ifc_iowrite16(IFCVF_MSI_CONFIG_OFF, &cfg->msix_config);
+
+ if (ifc_ioread16(&cfg->msix_config) == VIRTIO_MSI_NO_VECTOR) {
+ IFCVF_ERR(ifcvf->pdev, "No msix vector for device config\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < hw->nr_vring; i++) {
+ if (!hw->vring[i].ready)
+ break;
+
+ ifc_iowrite16(i, &cfg->queue_select);
+ ifc_iowrite64_twopart(hw->vring[i].desc, &cfg->queue_desc_lo,
+ &cfg->queue_desc_hi);
+ ifc_iowrite64_twopart(hw->vring[i].avail, &cfg->queue_avail_lo,
+ &cfg->queue_avail_hi);
+ ifc_iowrite64_twopart(hw->vring[i].used, &cfg->queue_used_lo,
+ &cfg->queue_used_hi);
+ ifc_iowrite16(hw->vring[i].size, &cfg->queue_size);
+ ifc_iowrite16(i + IFCVF_MSI_QUEUE_OFF, &cfg->queue_msix_vector);
+
+ if (ifc_ioread16(&cfg->queue_msix_vector) ==
+ VIRTIO_MSI_NO_VECTOR) {
+ IFCVF_ERR(ifcvf->pdev,
+ "No msix vector for queue %u\n", i);
+ return -EINVAL;
+ }
+
+ ifcvf_set_vq_state(hw, i, hw->vring[i].last_avail_idx);
+ ifc_iowrite16(1, &cfg->queue_enable);
+ }
+
+ return 0;
+}
+
+static void ifcvf_hw_disable(struct ifcvf_hw *hw)
+{
+ struct virtio_pci_common_cfg __iomem *cfg;
+ u32 i;
+
+ cfg = hw->common_cfg;
+ ifc_iowrite16(VIRTIO_MSI_NO_VECTOR, &cfg->msix_config);
+
+ for (i = 0; i < hw->nr_vring; i++) {
+ ifc_iowrite16(i, &cfg->queue_select);
+ ifc_iowrite16(VIRTIO_MSI_NO_VECTOR, &cfg->queue_msix_vector);
+ }
+
+ ifc_ioread16(&cfg->queue_msix_vector);
+}
+
+int ifcvf_start_hw(struct ifcvf_hw *hw)
+{
+ ifcvf_reset(hw);
+ ifcvf_add_status(hw, VIRTIO_CONFIG_S_ACKNOWLEDGE);
+ ifcvf_add_status(hw, VIRTIO_CONFIG_S_DRIVER);
+
+ if (ifcvf_config_features(hw) < 0)
+ return -EINVAL;
+
+ if (ifcvf_hw_enable(hw) < 0)
+ return -EINVAL;
+
+ ifcvf_add_status(hw, VIRTIO_CONFIG_S_DRIVER_OK);
+
+ return 0;
+}
+
+void ifcvf_stop_hw(struct ifcvf_hw *hw)
+{
+ ifcvf_hw_disable(hw);
+ ifcvf_reset(hw);
+}
+
+void ifcvf_notify_queue(struct ifcvf_hw *hw, u16 qid)
+{
+ ifc_iowrite16(qid, hw->vring[qid].notify_addr);
+}
drivers/vdpa/ifcvf/ifcvf_base.h
View filediff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h
new file mode 100644
index 0000000..e803070
--- /dev/null
+++ b/drivers/vdpa/ifcvf/ifcvf_base.h
@@ -0,0 +1,118 @@
This diff is incomplete. Download the complete patch.
drivers/vdpa/ifcvf/ifcvf_main.c
View fileThis diff is incomplete. Download the complete patch.
drivers/vdpa/vdpa.c
View fileThis diff is incomplete. Download the complete patch.
drivers/vdpa/vdpa_sim/Makefile
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drivers/vdpa/vdpa_sim/vdpa_sim.c
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drivers/vhost/Kconfig
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drivers/vhost/Kconfig.vringh
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drivers/vhost/Makefile
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drivers/vhost/iotlb.c
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drivers/vhost/net.c
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drivers/vhost/scsi.c
View fileThis diff is incomplete. Download the complete patch.
drivers/vhost/vdpa.c
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drivers/vhost/vhost.c
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drivers/vhost/vhost.h
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drivers/vhost/vringh.c
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drivers/vhost/vsock.c
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drivers/virtio/Kconfig
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drivers/virtio/Makefile
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drivers/virtio/virtio_vdpa.c
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include/linux/vdpa.h
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include/linux/vhost_iotlb.h
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include/linux/vringh.h
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include/uapi/linux/vhost.h
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include/uapi/linux/vhost_types.h
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include/uapi/linux/virtio_net.h
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tools/virtio/Makefile
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