From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Zhenyu Wang <zhenyuw@linux.intel.com>,
Zhi Wang <zhi.a.wang@intel.com>
Cc: Yan Zhao <yan.y.zhao@intel.com>,
kvm@vger.kernel.org, intel-gfx@lists.freedesktop.org,
linux-kernel@vger.kernel.org, Ben Gardon <bgardon@google.com>,
intel-gvt-dev@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH v3 09/28] drm/i915/gvt: Drop unused helper intel_vgpu_reset_gtt()
Date: Fri, 12 May 2023 17:35:41 -0700 [thread overview]
Message-ID: <20230513003600.818142-10-seanjc@google.com> (raw)
In-Reply-To: <20230513003600.818142-1-seanjc@google.com>
Drop intel_vgpu_reset_gtt() as it no longer has any callers. In addition
to eliminating dead code, this eliminates the last possible scenario where
__kvmgt_protect_table_find() can be reached without holding vgpu_lock.
Requiring vgpu_lock to be held when calling __kvmgt_protect_table_find()
will allow a protecting the gfn hash with vgpu_lock without too much fuss.
No functional change intended.
Fixes: ba25d977571e ("drm/i915/gvt: Do not destroy ppgtt_mm during vGPU D3->D0.")
Reviewed-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
drivers/gpu/drm/i915/gvt/gtt.c | 18 ------------------
drivers/gpu/drm/i915/gvt/gtt.h | 1 -
2 files changed, 19 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index f505be9e647a..c3c623b929ce 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -2817,24 +2817,6 @@ void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu, bool invalidate_old)
ggtt_invalidate(gvt->gt);
}
-/**
- * intel_vgpu_reset_gtt - reset the all GTT related status
- * @vgpu: a vGPU
- *
- * This function is called from vfio core to reset reset all
- * GTT related status, including GGTT, PPGTT, scratch page.
- *
- */
-void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu)
-{
- /* Shadow pages are only created when there is no page
- * table tracking data, so remove page tracking data after
- * removing the shadow pages.
- */
- intel_vgpu_destroy_all_ppgtt_mm(vgpu);
- intel_vgpu_reset_ggtt(vgpu, true);
-}
-
/**
* intel_gvt_restore_ggtt - restore all vGPU's ggtt entries
* @gvt: intel gvt device
diff --git a/drivers/gpu/drm/i915/gvt/gtt.h b/drivers/gpu/drm/i915/gvt/gtt.h
index a3b0f59ec8bd..4cb183e06e95 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.h
+++ b/drivers/gpu/drm/i915/gvt/gtt.h
@@ -224,7 +224,6 @@ void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu, bool invalidate_old);
void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu);
int intel_gvt_init_gtt(struct intel_gvt *gvt);
-void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu);
void intel_gvt_clean_gtt(struct intel_gvt *gvt);
struct intel_vgpu_mm *intel_gvt_find_ppgtt_mm(struct intel_vgpu *vgpu,
--
2.40.1.606.ga4b1b128d6-goog
next prev parent reply other threads:[~2023-05-13 0:36 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-13 0:35 [Intel-gfx] [PATCH v3 00/28] drm/i915/gvt: KVM: KVMGT fixes and page-track cleanups Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 01/28] drm/i915/gvt: Verify pfn is "valid" before dereferencing "struct page" Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 02/28] drm/i915/gvt: remove interface intel_gvt_is_valid_gfn Sean Christopherson
2023-05-15 11:07 ` Wang, Zhi A
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 03/28] drm/i915/gvt: Verify hugepages are contiguous in physical address space Sean Christopherson
2023-05-16 9:37 ` Yan Zhao
2023-05-17 14:50 ` Sean Christopherson
2023-05-18 9:06 ` Yan Zhao
2023-05-18 18:04 ` Sean Christopherson
2023-05-19 3:18 ` Yan Zhao
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 04/28] drm/i915/gvt: Put the page reference obtained by KVM's gfn_to_pfn() Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 05/28] drm/i915/gvt: Explicitly check that vGPU is attached before shadowing Sean Christopherson
2023-05-15 11:24 ` Wang, Zhi A
2023-05-15 17:57 ` Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 06/28] drm/i915/gvt: Error out on an attempt to shadowing an unknown GTT entry type Sean Christopherson
2023-05-15 11:28 ` Wang, Zhi A
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 07/28] drm/i915/gvt: Don't rely on KVM's gfn_to_pfn() to query possible 2M GTT Sean Christopherson
2023-05-17 0:57 ` Yan Zhao
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 08/28] drm/i915/gvt: Use an "unsigned long" to iterate over memslot gfns Sean Christopherson
2023-05-13 0:35 ` Sean Christopherson [this message]
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 10/28] drm/i915/gvt: Protect gfn hash table with vgpu_lock Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 11/28] KVM: x86/mmu: Move kvm_arch_flush_shadow_{all, memslot}() to mmu.c Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 12/28] KVM: x86/mmu: Don't rely on page-track mechanism to flush on memslot change Sean Christopherson
2023-05-17 2:06 ` Yan Zhao
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 13/28] KVM: x86/mmu: Don't bounce through page-track mechanism for guest PTEs Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 14/28] KVM: drm/i915/gvt: Drop @vcpu from KVM's ->track_write() hook Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 15/28] KVM: x86: Reject memslot MOVE operations if KVMGT is attached Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 16/28] drm/i915/gvt: Don't bother removing write-protection on to-be-deleted slot Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 17/28] KVM: x86: Add a new page-track hook to handle memslot deletion Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 18/28] drm/i915/gvt: switch from ->track_flush_slot() to ->track_remove_region() Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 19/28] KVM: x86: Remove the unused page-track hook track_flush_slot() Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 20/28] KVM: x86/mmu: Move KVM-only page-track declarations to internal header Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 21/28] KVM: x86/mmu: Use page-track notifiers iff there are external users Sean Christopherson
2023-05-17 3:27 ` Yan Zhao
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 22/28] KVM: x86/mmu: Drop infrastructure for multiple page-track modes Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 23/28] KVM: x86/mmu: Rename page-track APIs to reflect the new reality Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 24/28] KVM: x86/mmu: Assert that correct locks are held for page write-tracking Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 25/28] KVM: x86/mmu: Bug the VM if write-tracking is used but not enabled Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 26/28] KVM: x86/mmu: Drop @slot param from exported/external page-track APIs Sean Christopherson
2023-05-13 0:35 ` [Intel-gfx] [PATCH v3 27/28] KVM: x86/mmu: Handle KVM bookkeeping in page-track APIs, not callers Sean Christopherson
2023-05-13 0:36 ` [Intel-gfx] [PATCH v3 28/28] drm/i915/gvt: Drop final dependencies on KVM internal details Sean Christopherson
2023-05-13 1:46 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/gvt: KVM: KVMGT fixes and page-track cleanups (rev8) Patchwork
2023-05-13 2:00 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2023-06-14 3:06 ` [Intel-gfx] [PATCH v3 00/28] drm/i915/gvt: KVM: KVMGT fixes and page-track cleanups Ma, Yongwei
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