From: Yuan Yao <yuan.yao@linux.intel.com>
To: isaku.yamahata@intel.com
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
isaku.yamahata@gmail.com, Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH v7 056/102] KVM: x86/mmu: steal software usable git to record if GFN is for shared or not
Date: Mon, 18 Jul 2022 16:37:43 +0800 [thread overview]
Message-ID: <20220718083743.dmgc4zsxag42o6vw@yy-desk-7060> (raw)
In-Reply-To: <5ebf360e196b3f52eb42efaa8eeba587fab5897a.1656366338.git.isaku.yamahata@intel.com>
On Mon, Jun 27, 2022 at 02:53:48PM -0700, isaku.yamahata@intel.com wrote:
> From: Isaku Yamahata <isaku.yamahata@intel.com>
Subject: s/git/bit
>
> With TDX, all GFNs are private at guest boot time. At run time guest TD
> can explicitly change it to shared from private or vice-versa by MapGPA
> hypercall. If it's specified, the given GFN can't be used as otherwise.
> That's is, if a guest tells KVM that the GFN is shared, it can't be used
> as private. or vice-versa.
>
> Steal software usable bit, SPTE_SHARED_MASK, for it from MMIO counter to
> record it. Use the bit SPTE_SHARED_MASK in shared or private EPT to
> determine which mapping, shared or private, is allowed. If requested
> mapping isn't allowed, return RET_PF_RETRY to wait for other vcpu to change
> it. The bit is recorded in both shared and private shadow page to avoid
> traverse one more shadow page when resolving KVM page fault.
>
> The bit needs to be kept over zapping the EPT entry. Currently the EPT
> entry is initialized SHADOW_NONPRESENT_VALUE unconditionally to clear
> SPTE_SHARED_MASK bit. To carry SPTE_SHARED_MASK bit, introduce a helper
> function to get initial value for zapped entry with SPTE_SHARED_MASK bit.
> Replace SHADOW_NONPRESENT_VALUE with it.
>
> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
> ---
> arch/x86/kvm/mmu/spte.h | 17 +++++++---
> arch/x86/kvm/mmu/tdp_mmu.c | 65 ++++++++++++++++++++++++++++++++------
> 2 files changed, 68 insertions(+), 14 deletions(-)
>
> diff --git a/arch/x86/kvm/mmu/spte.h b/arch/x86/kvm/mmu/spte.h
> index 96312ab4fffb..7c1aaf0e963e 100644
> --- a/arch/x86/kvm/mmu/spte.h
> +++ b/arch/x86/kvm/mmu/spte.h
> @@ -14,6 +14,9 @@
> */
> #define SPTE_MMU_PRESENT_MASK BIT_ULL(11)
>
> +/* Masks that used to track for shared GPA **/
> +#define SPTE_SHARED_MASK BIT_ULL(62)
> +
> /*
> * TDP SPTES (more specifically, EPT SPTEs) may not have A/D bits, and may also
> * be restricted to using write-protection (for L2 when CPU dirty logging, i.e.
> @@ -104,7 +107,7 @@ static_assert(!(EPT_SPTE_MMU_WRITABLE & SHADOW_ACC_TRACK_SAVED_MASK));
> * the memslots generation and is derived as follows:
> *
> * Bits 0-7 of the MMIO generation are propagated to spte bits 3-10
> - * Bits 8-18 of the MMIO generation are propagated to spte bits 52-62
> + * Bits 8-18 of the MMIO generation are propagated to spte bits 52-61
Should be 8-17.
> *
> * The KVM_MEMSLOT_GEN_UPDATE_IN_PROGRESS flag is intentionally not included in
> * the MMIO generation number, as doing so would require stealing a bit from
> @@ -118,7 +121,7 @@ static_assert(!(EPT_SPTE_MMU_WRITABLE & SHADOW_ACC_TRACK_SAVED_MASK));
> #define MMIO_SPTE_GEN_LOW_END 10
>
> #define MMIO_SPTE_GEN_HIGH_START 52
> -#define MMIO_SPTE_GEN_HIGH_END 62
> +#define MMIO_SPTE_GEN_HIGH_END 61
>
> #define MMIO_SPTE_GEN_LOW_MASK GENMASK_ULL(MMIO_SPTE_GEN_LOW_END, \
> MMIO_SPTE_GEN_LOW_START)
> @@ -131,7 +134,7 @@ static_assert(!(SPTE_MMU_PRESENT_MASK &
> #define MMIO_SPTE_GEN_HIGH_BITS (MMIO_SPTE_GEN_HIGH_END - MMIO_SPTE_GEN_HIGH_START + 1)
>
> /* remember to adjust the comment above as well if you change these */
> -static_assert(MMIO_SPTE_GEN_LOW_BITS == 8 && MMIO_SPTE_GEN_HIGH_BITS == 11);
> +static_assert(MMIO_SPTE_GEN_LOW_BITS == 8 && MMIO_SPTE_GEN_HIGH_BITS == 10);
>
> #define MMIO_SPTE_GEN_LOW_SHIFT (MMIO_SPTE_GEN_LOW_START - 0)
> #define MMIO_SPTE_GEN_HIGH_SHIFT (MMIO_SPTE_GEN_HIGH_START - MMIO_SPTE_GEN_LOW_BITS)
> @@ -208,6 +211,7 @@ extern u64 __read_mostly shadow_nonpresent_or_rsvd_mask;
> /* Removed SPTEs must not be misconstrued as shadow present PTEs. */
> static_assert(!(__REMOVED_SPTE & SPTE_MMU_PRESENT_MASK));
> static_assert(!(__REMOVED_SPTE & SHADOW_NONPRESENT_VALUE));
> +static_assert(!(__REMOVED_SPTE & SPTE_SHARED_MASK));
>
> /*
> * See above comment around __REMOVED_SPTE. REMOVED_SPTE is the actual
> @@ -217,7 +221,12 @@ static_assert(!(__REMOVED_SPTE & SHADOW_NONPRESENT_VALUE));
>
> static inline bool is_removed_spte(u64 spte)
> {
> - return spte == REMOVED_SPTE;
> + return (spte & ~SPTE_SHARED_MASK) == REMOVED_SPTE;
> +}
> +
> +static inline u64 spte_shared_mask(u64 spte)
> +{
> + return spte & SPTE_SHARED_MASK;
> }
>
> /*
> diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
> index fef6246086a8..4f279700b3cc 100644
> --- a/arch/x86/kvm/mmu/tdp_mmu.c
> +++ b/arch/x86/kvm/mmu/tdp_mmu.c
> @@ -758,6 +758,11 @@ static inline int tdp_mmu_set_spte_atomic(struct kvm *kvm,
> return 0;
> }
>
> +static u64 shadow_nonpresent_spte(u64 old_spte)
> +{
> + return SHADOW_NONPRESENT_VALUE | spte_shared_mask(old_spte);
> +}
> +
> static inline int tdp_mmu_zap_spte_atomic(struct kvm *kvm,
> struct tdp_iter *iter)
> {
> @@ -791,7 +796,8 @@ static inline int tdp_mmu_zap_spte_atomic(struct kvm *kvm,
> * SHADOW_NONPRESENT_VALUE (which sets "suppress #VE" bit) so it
> * can be set when EPT table entries are zapped.
> */
> - __kvm_tdp_mmu_write_spte(iter->sptep, SHADOW_NONPRESENT_VALUE);
> + __kvm_tdp_mmu_write_spte(iter->sptep,
> + shadow_nonpresent_spte(iter->old_spte));
>
> return 0;
> }
> @@ -975,8 +981,11 @@ static void __tdp_mmu_zap_root(struct kvm *kvm, struct kvm_mmu_page *root,
> continue;
>
> if (!shared)
> - tdp_mmu_set_spte(kvm, &iter, SHADOW_NONPRESENT_VALUE);
> - else if (tdp_mmu_set_spte_atomic(kvm, &iter, SHADOW_NONPRESENT_VALUE))
> + tdp_mmu_set_spte(kvm, &iter,
> + shadow_nonpresent_spte(iter.old_spte));
> + else if (tdp_mmu_set_spte_atomic(
> + kvm, &iter,
> + shadow_nonpresent_spte(iter.old_spte)))
> goto retry;
> }
> }
> @@ -1033,7 +1042,8 @@ bool kvm_tdp_mmu_zap_sp(struct kvm *kvm, struct kvm_mmu_page *sp)
> return false;
>
> __tdp_mmu_set_spte(kvm, kvm_mmu_page_as_id(sp), sp->ptep, old_spte,
> - SHADOW_NONPRESENT_VALUE, sp->gfn, sp->role.level + 1,
> + shadow_nonpresent_spte(old_spte),
> + sp->gfn, sp->role.level + 1,
> true, true, is_private_sp(sp));
>
> return true;
> @@ -1075,11 +1085,20 @@ static bool tdp_mmu_zap_leafs(struct kvm *kvm, struct kvm_mmu_page *root,
> continue;
> }
>
> + /*
> + * SPTE_SHARED_MASK is stored as 4K granularity. The
> + * information is lost if we delete upper level SPTE page.
> + * TODO: support large page.
> + */
> + if (kvm_gfn_shared_mask(kvm) && iter.level > PG_LEVEL_4K)
> + continue;
> +
> if (!is_shadow_present_pte(iter.old_spte) ||
> !is_last_spte(iter.old_spte, iter.level))
> continue;
>
> - tdp_mmu_set_spte(kvm, &iter, SHADOW_NONPRESENT_VALUE);
> + tdp_mmu_set_spte(kvm, &iter,
> + shadow_nonpresent_spte(iter.old_spte));
> flush = true;
> }
>
> @@ -1195,18 +1214,44 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu,
> gfn_t gfn_unalias = iter->gfn & ~kvm_gfn_shared_mask(vcpu->kvm);
>
> WARN_ON(sp->role.level != fault->goal_level);
> + WARN_ON(is_private_sptep(iter->sptep) != fault->is_private);
>
> - /* TDX shared GPAs are no executable, enforce this for the SDV. */
> - if (kvm_gfn_shared_mask(vcpu->kvm) && !fault->is_private)
> - pte_access &= ~ACC_EXEC_MASK;
> + if (kvm_gfn_shared_mask(vcpu->kvm)) {
> + if (fault->is_private) {
> + /*
> + * SPTE allows only RWX mapping. PFN can't be mapped it
> + * as READONLY in GPA.
> + */
> + if (fault->slot && !fault->map_writable)
> + return RET_PF_RETRY;
> + /*
> + * This GPA is not allowed to map as private. Let
> + * vcpu loop in page fault until other vcpu change it
> + * by MapGPA hypercall.
> + */
> + if (fault->slot &&
Please consider to merge this if into above "if (fault->slot) {}"
> + spte_shared_mask(iter->old_spte))
> + return RET_PF_RETRY;
> + } else {
> + /* This GPA is not allowed to map as shared. */
> + if (fault->slot &&
> + !spte_shared_mask(iter->old_spte))
> + return RET_PF_RETRY;
> + /* TDX shared GPAs are no executable, enforce this. */
> + pte_access &= ~ACC_EXEC_MASK;
> + }
> + }
>
> if (unlikely(!fault->slot))
> new_spte = make_mmio_spte(vcpu, gfn_unalias, pte_access);
> - else
> + else {
> wrprot = make_spte(vcpu, sp, fault->slot, pte_access,
> gfn_unalias, fault->pfn, iter->old_spte,
> fault->prefetch, true, fault->map_writable,
> &new_spte);
> + if (spte_shared_mask(iter->old_spte))
> + new_spte |= SPTE_SHARED_MASK;
> + }
The if can be eliminated:
new_spte |= spte_shared_mask(iter->old_spte);
>
> if (new_spte == iter->old_spte)
> ret = RET_PF_SPURIOUS;
> @@ -1509,7 +1554,7 @@ static bool set_spte_gfn(struct kvm *kvm, struct tdp_iter *iter,
> * invariant that the PFN of a present * leaf SPTE can never change.
> * See __handle_changed_spte().
> */
> - tdp_mmu_set_spte(kvm, iter, SHADOW_NONPRESENT_VALUE);
> + tdp_mmu_set_spte(kvm, iter, shadow_nonpresent_spte(iter->old_spte));
>
> if (!pte_write(range->pte)) {
> new_spte = kvm_mmu_changed_pte_notifier_make_spte(iter->old_spte,
> --
> 2.25.1
>
next prev parent reply other threads:[~2022-07-18 8:37 UTC|newest]
Thread overview: 219+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-27 21:52 [PATCH v7 000/102] KVM TDX basic feature support isaku.yamahata
2022-06-27 21:52 ` [PATCH v7 001/102] KVM: x86: Move check_processor_compatibility from init ops to runtime ops isaku.yamahata
2022-06-27 21:52 ` [PATCH v7 002/102] Partially revert "KVM: Pass kvm_init()'s opaque param to additional arch funcs" isaku.yamahata
2022-07-13 1:55 ` Kai Huang
2022-07-26 23:57 ` Isaku Yamahata
2022-06-27 21:52 ` [PATCH v7 003/102] KVM: Refactor CPU compatibility check on module initialiization isaku.yamahata
2022-07-12 1:15 ` Kai Huang
2022-07-13 3:16 ` Kai Huang
2022-07-13 3:11 ` Kai Huang
2022-07-27 22:04 ` Isaku Yamahata
2022-06-27 21:52 ` [PATCH v7 004/102] KVM: VMX: Move out vmx_x86_ops to 'main.c' to wrap VMX and TDX isaku.yamahata
2022-06-27 21:52 ` [PATCH v7 005/102] x86/virt/vmx/tdx: export platform_tdx_enabled() isaku.yamahata
2022-06-27 21:52 ` [PATCH v7 006/102] KVM: TDX: Detect CPU feature on kernel module initialization isaku.yamahata
2022-06-28 3:43 ` Kai Huang
2022-07-11 23:48 ` Isaku Yamahata
2022-07-12 0:45 ` Kai Huang
2022-06-27 21:52 ` [PATCH v7 007/102] KVM: Enable hardware before doing arch VM initialization isaku.yamahata
2022-06-28 2:59 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 008/102] KVM: x86: Refactor KVM VMX module init/exit functions isaku.yamahata
2022-06-28 3:53 ` Kai Huang
2022-07-12 0:38 ` Isaku Yamahata
2022-07-12 1:30 ` Kai Huang
2022-07-27 0:44 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 009/102] KVM: TDX: Add placeholders for TDX VM/vcpu structure isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 010/102] x86/virt/tdx: Add a helper function to return system wide info about TDX module isaku.yamahata
2022-07-07 2:46 ` Yuan Yao
2022-07-12 0:39 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 011/102] KVM: TDX: Initialize TDX module when loading kvm_intel.ko isaku.yamahata
2022-06-28 4:31 ` Kai Huang
2022-07-12 0:46 ` Isaku Yamahata
2022-07-12 1:13 ` Kai Huang
2022-07-27 0:39 ` Isaku Yamahata
2022-07-27 4:38 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 012/102] KVM: x86: Introduce vm_type to differentiate default VMs from confidential VMs isaku.yamahata
2022-06-28 2:52 ` Kai Huang
2022-07-04 6:44 ` Kai Huang
2022-07-12 1:01 ` Isaku Yamahata
2022-07-12 1:24 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 013/102] KVM: TDX: Make TDX VM type supported isaku.yamahata
2022-07-07 2:55 ` Yuan Yao
2022-07-12 1:06 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 014/102] [MARKER] The start of TDX KVM patch series: TDX architectural definitions isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 015/102] KVM: TDX: Define " isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 016/102] KVM: TDX: Add TDX "architectural" error codes isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 017/102] KVM: TDX: Add C wrapper functions for SEAMCALLs to the TDX module isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 018/102] KVM: TDX: Add helper functions to print TDX SEAMCALL error isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 019/102] [MARKER] The start of TDX KVM patch series: TD VM creation/destruction isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 020/102] KVM: TDX: Stub in tdx.h with structs, accessors, and VMCS helpers isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 021/102] x86/cpu: Add helper functions to allocate/free TDX private host key id isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 022/102] KVM: TDX: create/destroy VM structure isaku.yamahata
2022-07-07 6:16 ` Yuan Yao
2022-07-12 6:21 ` Isaku Yamahata
2022-08-02 19:46 ` Sean Christopherson
2022-08-11 18:29 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 023/102] KVM: TDX: x86: Add ioctl to get TDX systemwide parameters isaku.yamahata
2022-07-07 6:48 ` Yuan Yao
2022-06-27 21:53 ` [PATCH v7 024/102] KVM: TDX: Add place holder for TDX VM specific mem_enc_op ioctl isaku.yamahata
2022-07-07 7:12 ` Yuan Yao
2022-06-27 21:53 ` [PATCH v7 025/102] KVM: TDX: initialize VM with TDX specific parameters isaku.yamahata
2022-06-28 8:30 ` Xiaoyao Li
2022-07-12 7:11 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 026/102] KVM: TDX: Make pmu_intel.c ignore guest TD case isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 027/102] [MARKER] The start of TDX KVM patch series: TD vcpu creation/destruction isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 028/102] KVM: TDX: allocate/free TDX vcpu structure isaku.yamahata
2022-08-02 19:56 ` Sean Christopherson
2022-06-27 21:53 ` [PATCH v7 029/102] " isaku.yamahata
2022-06-28 11:34 ` Kai Huang
2022-07-12 7:55 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 030/102] KVM: TDX: Do TDX specific vcpu initialization isaku.yamahata
2022-07-08 2:14 ` Yuan Yao
2022-07-12 20:35 ` Isaku Yamahata
2022-07-13 0:22 ` Xiaoyao Li
2022-06-27 21:53 ` [PATCH v7 031/102] [MARKER] The start of TDX KVM patch series: KVM MMU GPA shared bits isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 032/102] KVM: x86/mmu: introduce config for PRIVATE KVM MMU isaku.yamahata
2022-07-08 1:53 ` Kai Huang
2022-07-13 1:25 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 033/102] KVM: x86/mmu: Add address conversion functions for TDX shared bits isaku.yamahata
2022-07-08 2:15 ` Kai Huang
2022-07-13 4:52 ` Isaku Yamahata
2022-07-13 10:41 ` Kai Huang
2022-07-14 0:14 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 034/102] [MARKER] The start of TDX KVM patch series: KVM TDP refactoring for TDX isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 035/102] KVM: x86/mmu: Explicitly check for MMIO spte in fast page fault isaku.yamahata
2022-06-30 11:37 ` Kai Huang
2022-07-13 8:35 ` Isaku Yamahata
2022-07-13 10:29 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 036/102] KVM: x86/mmu: Allow non-zero value for non-present SPTE isaku.yamahata
2022-06-30 11:03 ` Kai Huang
2022-07-14 18:05 ` Isaku Yamahata
2022-07-08 5:18 ` Yuan Yao
2022-07-08 15:30 ` Sean Christopherson
2022-07-11 7:05 ` Yuan Yao
2022-07-11 14:47 ` Sean Christopherson
2022-07-14 18:41 ` Isaku Yamahata
2022-07-20 2:44 ` Kai Huang
2022-07-20 3:12 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 037/102] KVM: x86/mmu: Track shadow MMIO value/mask on a per-VM basis isaku.yamahata
2022-06-30 11:45 ` Kai Huang
2022-07-05 14:06 ` Kai Huang
2022-07-19 8:47 ` Isaku Yamahata
2022-07-20 3:45 ` Kai Huang
2022-07-27 23:20 ` Isaku Yamahata
2022-07-28 0:48 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 038/102] KVM: x86/mmu: Disallow fast page fault on private GPA isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 039/102] KVM: x86/mmu: Allow per-VM override of the TDP max page level isaku.yamahata
2022-06-30 12:27 ` Kai Huang
2022-07-19 10:26 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 040/102] KVM: x86/mmu: Zap only leaf SPTEs for deleted/moved memslot for private mmu isaku.yamahata
2022-07-01 10:41 ` Kai Huang
2022-07-19 11:06 ` Isaku Yamahata
2022-07-19 23:17 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 041/102] KVM: VMX: Introduce test mode related to EPT violation VE isaku.yamahata
2022-07-08 2:23 ` Kai Huang
2022-07-19 14:49 ` Isaku Yamahata
2022-07-20 5:13 ` Kai Huang
2022-07-27 23:39 ` Isaku Yamahata
2022-07-28 0:54 ` Kai Huang
2022-07-28 20:11 ` Sean Christopherson
2022-08-09 0:48 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 042/102] [MARKER] The start of TDX KVM patch series: KVM TDP MMU hooks isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 043/102] KVM: x86/mmu: Focibly use TDP MMU for TDX isaku.yamahata
2022-07-11 5:48 ` Yuan Yao
2022-07-11 14:56 ` Sean Christopherson
2022-07-19 15:04 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 044/102] KVM: x86/mmu: Add a private pointer to struct kvm_mmu_page isaku.yamahata
2022-07-01 11:12 ` Kai Huang
2022-07-19 15:35 ` Isaku Yamahata
2022-07-11 6:28 ` Yuan Yao
2022-07-28 19:41 ` David Matlack
2022-08-09 23:52 ` Isaku Yamahata
2022-07-28 20:13 ` David Matlack
2022-08-09 23:50 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 045/102] KVM: x86/tdp_mmu: refactor kvm_tdp_mmu_map() isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 046/102] KVM: x86/tdp_mmu: Support TDX private mapping for TDP MMU isaku.yamahata
2022-07-08 3:44 ` Kai Huang
2022-07-26 23:39 ` Isaku Yamahata
2022-07-11 8:28 ` Yuan Yao
2022-07-26 23:41 ` Isaku Yamahata
2022-07-12 2:36 ` Yuan Yao
2022-07-26 23:42 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 047/102] [MARKER] The start of TDX KVM patch series: TDX EPT violation isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 048/102] KVM: x86/mmu: Disallow dirty logging for x86 TDX isaku.yamahata
2022-07-08 2:30 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 049/102] KVM: x86/tdp_mmu: Ignore unsupported mmu operation on private GFNs isaku.yamahata
2022-07-12 2:58 ` Yuan Yao
2022-07-19 18:03 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 050/102] KVM: VMX: Split out guts of EPT violation to common/exposed function isaku.yamahata
2022-07-08 10:25 ` Kai Huang
2022-06-27 21:53 ` [PATCH v7 051/102] KVM: VMX: Move setting of EPT MMU masks to common VT-x code isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 052/102] KVM: TDX: Add load_mmu_pgd method for TDX isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 053/102] KVM: TDX: don't request KVM_REQ_APIC_PAGE_RELOAD isaku.yamahata
2022-07-12 3:47 ` Yuan Yao
2022-07-12 6:14 ` Chao Gao
2022-07-19 18:12 ` Isaku Yamahata
2022-06-27 21:53 ` [PATCH v7 054/102] KVM: TDX: TDP MMU TDX support isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 055/102] [MARKER] The start of TDX KVM patch series: KVM TDP MMU MapGPA isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 056/102] KVM: x86/mmu: steal software usable git to record if GFN is for shared or not isaku.yamahata
2022-07-18 8:37 ` Yuan Yao [this message]
2022-06-27 21:53 ` [PATCH v7 057/102] KVM: x86/tdp_mmu: implement MapGPA hypercall for TDX isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 058/102] KVM: x86/mmu: Introduce kvm_mmu_map_tdp_page() for use by TDX isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 059/102] [MARKER] The start of TDX KVM patch series: TD finalization isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 060/102] KVM: TDX: Create initial guest memory isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 061/102] KVM: TDX: Finalize VM initialization isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 062/102] [MARKER] The start of TDX KVM patch series: TD vcpu enter/exit isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 063/102] KVM: TDX: Add helper assembly function to TDX vcpu isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 064/102] KVM: TDX: Implement TDX vcpu enter/exit path isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 065/102] KVM: TDX: vcpu_run: save/restore host state(host kernel gs) isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 066/102] KVM: TDX: restore host xsave state when exit from the guest TD isaku.yamahata
2022-06-27 21:53 ` [PATCH v7 067/102] KVM: x86: Allow to update cached values in kvm_user_return_msrs w/o wrmsr isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 068/102] KVM: TDX: restore user ret MSRs isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 069/102] [MARKER] The start of TDX KVM patch series: TD vcpu exits/interrupts/hypercalls isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 070/102] KVM: TDX: complete interrupts after tdexit isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 071/102] KVM: TDX: restore debug store when TD exit isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 072/102] KVM: TDX: handle vcpu migration over logical processor isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 073/102] KVM: x86: Add a switch_db_regs flag to handle TDX's auto-switched behavior isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 074/102] KVM: TDX: Add support for find pending IRQ in a protected local APIC isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 075/102] KVM: x86: Assume timer IRQ was injected if APIC state is proteced isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 076/102] KVM: TDX: remove use of struct vcpu_vmx from posted_interrupt.c isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 077/102] KVM: TDX: Implement interrupt injection isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 078/102] KVM: TDX: Implements vcpu request_immediate_exit isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 079/102] KVM: TDX: Implement methods to inject NMI isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 080/102] KVM: VMX: Modify NMI and INTR handlers to take intr_info as function argument isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 081/102] KVM: VMX: Move NMI/exception handler to common helper isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 082/102] KVM: x86: Split core of hypercall emulation to helper function isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 083/102] KVM: TDX: Add a place holder to handle TDX VM exit isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 084/102] KVM: TDX: handle EXIT_REASON_OTHER_SMI isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 085/102] KVM: TDX: handle ept violation/misconfig exit isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 086/102] KVM: TDX: handle EXCEPTION_NMI and EXTERNAL_INTERRUPT isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 087/102] KVM: TDX: Add a place holder for handler of TDX hypercalls (TDG.VP.VMCALL) isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 088/102] KVM: TDX: handle KVM hypercall with TDG.VP.VMCALL isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 089/102] KVM: TDX: Handle TDX PV CPUID hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 090/102] KVM: TDX: Handle TDX PV HLT hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 091/102] KVM: TDX: Handle TDX PV port io hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 092/102] KVM: TDX: Handle TDX PV MMIO hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 093/102] KVM: TDX: Implement callbacks for MSR operations for TDX isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 094/102] KVM: TDX: Handle TDX PV rdmsr/wrmsr hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 095/102] KVM: TDX: Handle TDX PV report fatal error hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 096/102] KVM: TDX: Handle TDX PV map_gpa hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 097/102] KVM: TDX: Handle TDG.VP.VMCALL<GetTdVmCallInfo> hypercall isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 098/102] KVM: TDX: Silently discard SMI request isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 099/102] KVM: TDX: Silently ignore INIT/SIPI isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 100/102] KVM: TDX: Add methods to ignore accesses to CPU state isaku.yamahata
2022-06-27 21:54 ` [PATCH v7 101/102] Documentation/virtual/kvm: Document on Trust Domain Extensions(TDX) isaku.yamahata
2022-07-08 1:34 ` Kai Huang
2022-06-27 21:54 ` [PATCH v7 102/102] KVM: x86: design documentation on TDX support of x86 KVM TDP MMU isaku.yamahata
2022-07-11 15:17 ` [PATCH v7 000/102] KVM TDX basic feature support Isaku Yamahata
2022-07-12 5:07 ` Chao Gao
2022-07-12 10:54 ` Chao Peng
2022-07-12 17:22 ` Isaku Yamahata
2022-07-13 7:37 ` Chao Peng
2022-07-12 10:49 ` Chao Peng
2022-07-12 17:35 ` Isaku Yamahata
2022-07-14 1:03 ` Sean Christopherson
2022-07-14 4:09 ` Xiaoyao Li
2022-07-20 14:59 ` Chao Peng
2022-07-25 13:46 ` Nikunj A. Dadhania
2022-07-26 14:32 ` Chao Peng
2022-07-27 9:26 ` Nikunj A. Dadhania
2022-08-03 10:48 ` Chao Peng
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