[09/21] drm/i915/gvt: merge struct kvmgt_guest_info into strut intel_vgpu

Message ID	20210721155355.173183-10-hch@lst.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=klwv=MN=lists.freedesktop.org=intel-gfx-bounces@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 16D096120D From: Christoph Hellwig <hch@lst.de> To: Jani Nikula <jani.nikula@linux.intel.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Zhenyu Wang <zhenyuw@linux.intel.com>, Zhi Wang <zhi.a.wang@intel.com> Date: Wed, 21 Jul 2021 17:53:43 +0200 Message-Id: <20210721155355.173183-10-hch@lst.de> In-Reply-To: <20210721155355.173183-1-hch@lst.de> References: <20210721155355.173183-1-hch@lst.de> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 09/21] drm/i915/gvt: merge struct kvmgt_guest_info into strut intel_vgpu Precedence: list Cc: intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
Series	[01/21] drm/i915/gvt: integrate into the main Makefile \| expand [01/21] drm/i915/gvt: integrate into the main Makefile [02/21] drm/i915/gvt: remove module refcounting in intel_gvt_{, un}register_hypervisor [03/21] drm/i915/gvt: remove enum hypervisor_type [04/21] drm/i915/gvt: move the gvt code into kvmgt.ko [05/21] drm/i915/gvt: remove intel_gvt_ops [06/21] drm/i915/gvt: remove the map_gfn_to_mfn and set_trap_area ops [07/21] drm/i915/gvt: remove the unused from_virt_to_mfn op [08/21] drm/i915/gvt: merge struct kvmgt_vdev into struct intel_vgpu [09/21] drm/i915/gvt: merge struct kvmgt_guest_info into strut intel_vgpu [10/21] drm/i915/gvt: remove vgpu->handle [11/21] drm/i915/gvt: devirtualize ->{read, write}_gpa [12/21] drm/i915/gvt: devirtualize ->{get, put}_vfio_device [13/21] drm/i915/gvt: devirtualize ->set_edid and ->set_opregion [14/21] drm/i915/gvt: devirtualize ->detach_vgpu [15/21] drm/i915/gvt: devirtualize ->inject_msi [16/21] drm/i915/gvt: devirtualize ->is_valid_gfn [17/21] drm/i915/gvt: devirtualize ->gfn_to_mfn [18/21] drm/i915/gvt: devirtualize ->{enable, disable}_page_track [19/21] drm/i915/gvt: devirtualize ->dma_{, un}map_guest_page [20/21] drm/i915/gvt: devirtualize dma_pin_guest_page [21/21] drm/i915/gvt: remove struct intel_gvt_mpt

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 9f419e7f7a1b..a4691f0607e6 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -34,6 +34,7 @@ #define _GVT_H_ #include <uapi/linux/pci_regs.h> +#include <linux/kvm_host.h> #include "i915_drv.h" @@ -173,6 +174,8 @@ struct intel_vgpu_submission { } last_ctx[I915_NUM_ENGINES]; }; +#define KVMGT_DEBUGFS_FILENAME "kvmgt_nr_cache_entries" + struct intel_vgpu { struct intel_gvt *gvt; struct mutex vgpu_lock; @@ -235,6 +238,11 @@ struct intel_vgpu { atomic_t released; struct vfio_device *vfio_device; struct vfio_group *vfio_group; + + struct kvm_page_track_notifier_node track_node; +#define NR_BKT (1 << 18) + struct hlist_head ptable[NR_BKT]; +#undef NR_BKT }; /* validating GM healthy status*/ diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index bb536463a499..785647e776d2 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -39,7 +39,6 @@ #include <linux/spinlock.h> #include <linux/eventfd.h> #include <linux/uuid.h> -#include <linux/kvm_host.h> #include <linux/vfio.h> #include <linux/mdev.h> #include <linux/debugfs.h> @@ -88,16 +87,6 @@ struct kvmgt_pgfn { struct hlist_node hnode; }; -#define KVMGT_DEBUGFS_FILENAME "kvmgt_nr_cache_entries" -struct kvmgt_guest_info { - struct kvm *kvm; - struct intel_vgpu *vgpu; - struct kvm_page_track_notifier_node track_node; -#define NR_BKT (1 << 18) - struct hlist_head ptable[NR_BKT]; -#undef NR_BKT -}; - struct gvt_dma { struct intel_vgpu *vgpu; struct rb_node gfn_node; @@ -213,7 +202,7 @@ static void intel_gvt_cleanup_vgpu_type_groups(struct intel_gvt *gvt) static int kvmgt_guest_init(struct mdev_device *mdev); static void intel_vgpu_release_work(struct work_struct *work); -static bool kvmgt_guest_exit(struct kvmgt_guest_info *info); +static bool kvmgt_guest_exit(struct intel_vgpu *info); static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn, unsigned long size) @@ -437,12 +426,12 @@ static void gvt_cache_init(struct intel_vgpu *vgpu) mutex_init(&vgpu->cache_lock); } -static void kvmgt_protect_table_init(struct kvmgt_guest_info *info) +static void kvmgt_protect_table_init(struct intel_vgpu *info) { hash_init(info->ptable); } -static void kvmgt_protect_table_destroy(struct kvmgt_guest_info *info) +static void kvmgt_protect_table_destroy(struct intel_vgpu *info) { struct kvmgt_pgfn *p; struct hlist_node *tmp; @@ -455,7 +444,7 @@ static void kvmgt_protect_table_destroy(struct kvmgt_guest_info *info) } static struct kvmgt_pgfn * -__kvmgt_protect_table_find(struct kvmgt_guest_info *info, gfn_t gfn) +__kvmgt_protect_table_find(struct intel_vgpu *info, gfn_t gfn) { struct kvmgt_pgfn *p, *res = NULL; @@ -469,8 +458,7 @@ __kvmgt_protect_table_find(struct kvmgt_guest_info *info, gfn_t gfn) return res; } -static bool kvmgt_gfn_is_write_protected(struct kvmgt_guest_info *info, - gfn_t gfn) +static bool kvmgt_gfn_is_write_protected(struct intel_vgpu *info, gfn_t gfn) { struct kvmgt_pgfn *p; @@ -478,7 +466,7 @@ static bool kvmgt_gfn_is_write_protected(struct kvmgt_guest_info *info, return !!p; } -static void kvmgt_protect_table_add(struct kvmgt_guest_info *info, gfn_t gfn) +static void kvmgt_protect_table_add(struct intel_vgpu *info, gfn_t gfn) { struct kvmgt_pgfn *p; @@ -493,8 +481,7 @@ static void kvmgt_protect_table_add(struct kvmgt_guest_info *info, gfn_t gfn) hash_add(info->ptable, &p->hnode, gfn); } -static void kvmgt_protect_table_del(struct kvmgt_guest_info *info, - gfn_t gfn) +static void kvmgt_protect_table_del(struct intel_vgpu *info, gfn_t gfn) { struct kvmgt_pgfn *p; @@ -921,7 +908,6 @@ static void intel_vgpu_release_msi_eventfd_ctx(struct intel_vgpu *vgpu) static void __intel_vgpu_release(struct intel_vgpu *vgpu) { struct drm_i915_private *i915 = vgpu->gvt->gt->i915; - struct kvmgt_guest_info *info; int ret; if (!handle_valid(vgpu->handle)) @@ -945,8 +931,7 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu) /* dereference module reference taken at open */ module_put(THIS_MODULE); - info = (struct kvmgt_guest_info *)vgpu->handle; - kvmgt_guest_exit(info); + kvmgt_guest_exit(vgpu); intel_vgpu_release_msi_eventfd_ctx(vgpu); vfio_group_put_external_user(vgpu->vfio_group); @@ -1732,7 +1717,7 @@ static void kvmgt_host_exit(struct device *dev, void *gvt) static int kvmgt_page_track_add(unsigned long handle, u64 gfn) { - struct kvmgt_guest_info *info; + struct intel_vgpu *info; struct kvm *kvm; struct kvm_memory_slot *slot; int idx; @@ -1740,7 +1725,7 @@ static int kvmgt_page_track_add(unsigned long handle, u64 gfn) if (!handle_valid(handle)) return -ESRCH; - info = (struct kvmgt_guest_info *)handle; + info = (struct intel_vgpu *)handle; kvm = info->kvm; idx = srcu_read_lock(&kvm->srcu); @@ -1766,7 +1751,7 @@ static int kvmgt_page_track_add(unsigned long handle, u64 gfn) static int kvmgt_page_track_remove(unsigned long handle, u64 gfn) { - struct kvmgt_guest_info *info; + struct intel_vgpu *info; struct kvm *kvm; struct kvm_memory_slot *slot; int idx; @@ -1774,7 +1759,7 @@ static int kvmgt_page_track_remove(unsigned long handle, u64 gfn) if (!handle_valid(handle)) return 0; - info = (struct kvmgt_guest_info *)handle; + info = (struct intel_vgpu *)handle; kvm = info->kvm; idx = srcu_read_lock(&kvm->srcu); @@ -1802,11 +1787,11 @@ static void kvmgt_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *val, int len, struct kvm_page_track_notifier_node *node) { - struct kvmgt_guest_info *info = container_of(node, - struct kvmgt_guest_info, track_node); + struct intel_vgpu *info = + container_of(node, struct intel_vgpu, track_node); if (kvmgt_gfn_is_write_protected(info, gpa_to_gfn(gpa))) - intel_vgpu_page_track_handler(info->vgpu, gpa, + intel_vgpu_page_track_handler(info, gpa, (void *)val, len); } @@ -1816,8 +1801,8 @@ static void kvmgt_page_track_flush_slot(struct kvm *kvm, { int i; gfn_t gfn; - struct kvmgt_guest_info *info = container_of(node, - struct kvmgt_guest_info, track_node); + struct intel_vgpu *info = + container_of(node, struct intel_vgpu, track_node); write_lock(&kvm->mmu_lock); for (i = 0; i < slot->npages; i++) { @@ -1834,7 +1819,6 @@ static void kvmgt_page_track_flush_slot(struct kvm *kvm, static bool __kvmgt_vgpu_exist(struct intel_vgpu *vgpu, struct kvm *kvm) { struct intel_vgpu *itr; - struct kvmgt_guest_info *info; int id; bool ret = false; @@ -1843,8 +1827,7 @@ static bool __kvmgt_vgpu_exist(struct intel_vgpu *vgpu, struct kvm *kvm) if (!handle_valid(itr->handle)) continue; - info = (struct kvmgt_guest_info *)itr->handle; - if (kvm && kvm == info->kvm) { + if (kvm && kvm == itr->kvm) { ret = true; goto out; } @@ -1856,7 +1839,6 @@ static bool __kvmgt_vgpu_exist(struct intel_vgpu *vgpu, struct kvm *kvm) static int kvmgt_guest_init(struct mdev_device *mdev) { - struct kvmgt_guest_info *info; struct intel_vgpu *vgpu; struct kvm *kvm; @@ -1873,38 +1855,29 @@ static int kvmgt_guest_init(struct mdev_device *mdev) if (__kvmgt_vgpu_exist(vgpu, kvm)) return -EEXIST; - info = vzalloc(sizeof(struct kvmgt_guest_info)); - if (!info) - return -ENOMEM; - - vgpu->handle = (unsigned long)info; - info->vgpu = vgpu; - info->kvm = kvm; - kvm_get_kvm(info->kvm); + vgpu->handle = (unsigned long)vgpu; + kvm_get_kvm(vgpu->kvm); - kvmgt_protect_table_init(info); + kvmgt_protect_table_init(vgpu); gvt_cache_init(vgpu); - info->track_node.track_write = kvmgt_page_track_write; - info->track_node.track_flush_slot = kvmgt_page_track_flush_slot; - kvm_page_track_register_notifier(kvm, &info->track_node); + vgpu->track_node.track_write = kvmgt_page_track_write; + vgpu->track_node.track_flush_slot = kvmgt_page_track_flush_slot; + kvm_page_track_register_notifier(kvm, &vgpu->track_node); debugfs_create_ulong(KVMGT_DEBUGFS_FILENAME, 0444, vgpu->debugfs, &vgpu->nr_cache_entries); return 0; } -static bool kvmgt_guest_exit(struct kvmgt_guest_info *info) +static bool kvmgt_guest_exit(struct intel_vgpu *info) { - debugfs_remove(debugfs_lookup(KVMGT_DEBUGFS_FILENAME, - info->vgpu->debugfs)); + debugfs_remove(debugfs_lookup(KVMGT_DEBUGFS_FILENAME, info->debugfs)); kvm_page_track_unregister_notifier(info->kvm, &info->track_node); kvm_put_kvm(info->kvm); kvmgt_protect_table_destroy(info); - gvt_cache_destroy(info->vgpu); - vfree(info); - + gvt_cache_destroy(info); return true; } @@ -1927,14 +1900,12 @@ static void kvmgt_detach_vgpu(void *p_vgpu) static int kvmgt_inject_msi(unsigned long handle, u32 addr, u16 data) { - struct kvmgt_guest_info *info; struct intel_vgpu *vgpu; if (!handle_valid(handle)) return -ESRCH; - info = (struct kvmgt_guest_info *)handle; - vgpu = info->vgpu; + vgpu = (struct intel_vgpu *)handle; /* * When guest is poweroff, msi_trigger is set to NULL, but vgpu's @@ -1956,15 +1927,15 @@ static int kvmgt_inject_msi(unsigned long handle, u32 addr, u16 data) static unsigned long kvmgt_gfn_to_pfn(unsigned long handle, unsigned long gfn) { - struct kvmgt_guest_info *info; + struct intel_vgpu *vgpu; kvm_pfn_t pfn; if (!handle_valid(handle)) return INTEL_GVT_INVALID_ADDR; - info = (struct kvmgt_guest_info *)handle; + vgpu = (struct intel_vgpu *)handle; - pfn = gfn_to_pfn(info->kvm, gfn); + pfn = gfn_to_pfn(vgpu->kvm, gfn); if (is_error_noslot_pfn(pfn)) return INTEL_GVT_INVALID_ADDR; @@ -1981,7 +1952,7 @@ static int kvmgt_dma_map_guest_page(unsigned long handle, unsigned long gfn, if (!handle_valid(handle)) return -EINVAL; - vgpu = ((struct kvmgt_guest_info *)handle)->vgpu; + vgpu = (struct intel_vgpu *)handle; mutex_lock(&vgpu->cache_lock); @@ -2023,22 +1994,22 @@ static int kvmgt_dma_map_guest_page(unsigned long handle, unsigned long gfn, static int kvmgt_dma_pin_guest_page(unsigned long handle, dma_addr_t dma_addr) { - struct kvmgt_guest_info *info; + struct intel_vgpu *vgpu; struct gvt_dma *entry; int ret = 0; if (!handle_valid(handle)) return -ENODEV; - info = (struct kvmgt_guest_info *)handle; + vgpu = (struct intel_vgpu *)handle; - mutex_lock(&info->vgpu->cache_lock); - entry = __gvt_cache_find_dma_addr(info->vgpu, dma_addr); + mutex_lock(&vgpu->cache_lock); + entry = __gvt_cache_find_dma_addr(vgpu, dma_addr); if (entry) kref_get(&entry->ref); else ret = -ENOMEM; - mutex_unlock(&info->vgpu->cache_lock); + mutex_unlock(&vgpu->cache_lock); return ret; } @@ -2060,7 +2031,7 @@ static void kvmgt_dma_unmap_guest_page(unsigned long handle, dma_addr_t dma_addr if (!handle_valid(handle)) return; - vgpu = ((struct kvmgt_guest_info *)handle)->vgpu; + vgpu = (struct intel_vgpu *)handle; mutex_lock(&vgpu->cache_lock); entry = __gvt_cache_find_dma_addr(vgpu, dma_addr); @@ -2072,14 +2043,14 @@ static void kvmgt_dma_unmap_guest_page(unsigned long handle, dma_addr_t dma_addr static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa, void *buf, unsigned long len, bool write) { - struct kvmgt_guest_info *info; + struct intel_vgpu *vgpu; if (!handle_valid(handle)) return -ESRCH; - info = (struct kvmgt_guest_info *)handle; + vgpu = (struct intel_vgpu *)handle; - return vfio_dma_rw(info->vgpu->vfio_group, gpa, buf, len, write); + return vfio_dma_rw(vgpu->vfio_group, gpa, buf, len, write); } static int kvmgt_read_gpa(unsigned long handle, unsigned long gpa, @@ -2096,7 +2067,7 @@ static int kvmgt_write_gpa(unsigned long handle, unsigned long gpa, static bool kvmgt_is_valid_gfn(unsigned long handle, unsigned long gfn) { - struct kvmgt_guest_info *info; + struct intel_vgpu *vgpu; struct kvm *kvm; int idx; bool ret; @@ -2104,8 +2075,8 @@ static bool kvmgt_is_valid_gfn(unsigned long handle, unsigned long gfn) if (!handle_valid(handle)) return false; - info = (struct kvmgt_guest_info *)handle; - kvm = info->kvm; + vgpu = (struct intel_vgpu *)handle; + kvm = vgpu->kvm; idx = srcu_read_lock(&kvm->srcu); ret = kvm_is_visible_gfn(kvm, gfn);

[09/21] drm/i915/gvt: merge struct kvmgt_guest_info into strut intel_vgpu

Commit Message

Patch