From: Paolo Bonzini <pbonzini@redhat.com>
To: isaku.yamahata@intel.com, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H . Peter Anvin" <hpa@zytor.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
erdemaktas@google.com, Connor Kuehl <ckuehl@redhat.com>,
Sean Christopherson <seanjc@google.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, Tom Lendacky <thomas.lendacky@amd.com>
Cc: isaku.yamahata@gmail.com,
Sean Christopherson <sean.j.christopherson@intel.com>,
Xiaoyao Li <xiaoyao.li@intel.com>
Subject: Re: [RFC PATCH v2 24/69] KVM: x86: Introduce "protected guest" concept and block disallowed ioctls
Date: Tue, 6 Jul 2021 15:59:48 +0200 [thread overview]
Message-ID: <02ca73b2-7f04-813d-5bb7-649c0edafa06@redhat.com> (raw)
In-Reply-To: <482264f17fa0652faad9bd5364d652d11cb2ecb8.1625186503.git.isaku.yamahata@intel.com>
On 03/07/21 00:04, isaku.yamahata@intel.com wrote:
> From: Sean Christopherson <sean.j.christopherson@intel.com>
>
> Add 'guest_state_protected' to mark a VM's state as being protected by
> hardware/firmware, e.g. SEV-ES or TDX-SEAM. Use the flag to disallow
> ioctls() and/or flows that attempt to access protected state.
>
> Return an error if userspace attempts to get/set register state for a
> protected VM, e.g. a non-debug TDX guest. KVM can't provide sane data,
> it's userspace's responsibility to avoid attempting to read guest state
> when it's known to be inaccessible.
>
> Retrieving vCPU events is the one exception, as the userspace VMM is
> allowed to inject NMIs.
>
> Co-developed-by: Xiaoyao Li <xiaoyao.li@intel.com>
> Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
> ---
> arch/x86/kvm/x86.c | 104 +++++++++++++++++++++++++++++++++++++--------
> 1 file changed, 86 insertions(+), 18 deletions(-)
Looks good, but it should be checked whether it breaks QEMU for SEV-ES.
Tom, can you help?
Paolo
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 271245ffc67c..b89845dfb679 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -4297,6 +4297,10 @@ static int kvm_vcpu_ioctl_nmi(struct kvm_vcpu *vcpu)
>
> static int kvm_vcpu_ioctl_smi(struct kvm_vcpu *vcpu)
> {
> + /* TODO: use more precise flag */
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> kvm_make_request(KVM_REQ_SMI, vcpu);
>
> return 0;
> @@ -4343,6 +4347,10 @@ static int kvm_vcpu_ioctl_x86_set_mce(struct kvm_vcpu *vcpu,
> unsigned bank_num = mcg_cap & 0xff;
> u64 *banks = vcpu->arch.mce_banks;
>
> + /* TODO: use more precise flag */
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> if (mce->bank >= bank_num || !(mce->status & MCI_STATUS_VAL))
> return -EINVAL;
> /*
> @@ -4438,7 +4446,8 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_events(struct kvm_vcpu *vcpu,
> vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft;
> events->interrupt.nr = vcpu->arch.interrupt.nr;
> events->interrupt.soft = 0;
> - events->interrupt.shadow = static_call(kvm_x86_get_interrupt_shadow)(vcpu);
> + if (!vcpu->arch.guest_state_protected)
> + events->interrupt.shadow = static_call(kvm_x86_get_interrupt_shadow)(vcpu);
>
> events->nmi.injected = vcpu->arch.nmi_injected;
> events->nmi.pending = vcpu->arch.nmi_pending != 0;
> @@ -4467,11 +4476,17 @@ static void kvm_smm_changed(struct kvm_vcpu *vcpu);
> static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
> struct kvm_vcpu_events *events)
> {
> - if (events->flags & ~(KVM_VCPUEVENT_VALID_NMI_PENDING
> - | KVM_VCPUEVENT_VALID_SIPI_VECTOR
> - | KVM_VCPUEVENT_VALID_SHADOW
> - | KVM_VCPUEVENT_VALID_SMM
> - | KVM_VCPUEVENT_VALID_PAYLOAD))
> + u32 allowed_flags = KVM_VCPUEVENT_VALID_NMI_PENDING |
> + KVM_VCPUEVENT_VALID_SIPI_VECTOR |
> + KVM_VCPUEVENT_VALID_SHADOW |
> + KVM_VCPUEVENT_VALID_SMM |
> + KVM_VCPUEVENT_VALID_PAYLOAD;
> +
> + /* TODO: introduce more precise flag */
> + if (vcpu->arch.guest_state_protected)
> + allowed_flags = KVM_VCPUEVENT_VALID_NMI_PENDING;
> +
> + if (events->flags & ~allowed_flags)
> return -EINVAL;
>
> if (events->flags & KVM_VCPUEVENT_VALID_PAYLOAD) {
> @@ -4552,17 +4567,22 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
> return 0;
> }
>
> -static void kvm_vcpu_ioctl_x86_get_debugregs(struct kvm_vcpu *vcpu,
> - struct kvm_debugregs *dbgregs)
> +static int kvm_vcpu_ioctl_x86_get_debugregs(struct kvm_vcpu *vcpu,
> + struct kvm_debugregs *dbgregs)
> {
> unsigned long val;
>
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> memcpy(dbgregs->db, vcpu->arch.db, sizeof(vcpu->arch.db));
> kvm_get_dr(vcpu, 6, &val);
> dbgregs->dr6 = val;
> dbgregs->dr7 = vcpu->arch.dr7;
> dbgregs->flags = 0;
> memset(&dbgregs->reserved, 0, sizeof(dbgregs->reserved));
> +
> + return 0;
> }
>
> static int kvm_vcpu_ioctl_x86_set_debugregs(struct kvm_vcpu *vcpu,
> @@ -4576,6 +4596,9 @@ static int kvm_vcpu_ioctl_x86_set_debugregs(struct kvm_vcpu *vcpu,
> if (!kvm_dr7_valid(dbgregs->dr7))
> return -EINVAL;
>
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> memcpy(vcpu->arch.db, dbgregs->db, sizeof(vcpu->arch.db));
> kvm_update_dr0123(vcpu);
> vcpu->arch.dr6 = dbgregs->dr6;
> @@ -4671,11 +4694,14 @@ static void load_xsave(struct kvm_vcpu *vcpu, u8 *src)
> }
> }
>
> -static void kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
> - struct kvm_xsave *guest_xsave)
> +static int kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
> + struct kvm_xsave *guest_xsave)
> {
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> if (!vcpu->arch.guest_fpu)
> - return;
> + return 0;
>
> if (boot_cpu_has(X86_FEATURE_XSAVE)) {
> memset(guest_xsave, 0, sizeof(struct kvm_xsave));
> @@ -4687,6 +4713,8 @@ static void kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
> *(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)] =
> XFEATURE_MASK_FPSSE;
> }
> +
> + return 0;
> }
>
> #define XSAVE_MXCSR_OFFSET 24
> @@ -4697,6 +4725,9 @@ static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
> u64 xstate_bv;
> u32 mxcsr;
>
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> if (!vcpu->arch.guest_fpu)
> return 0;
>
> @@ -4722,18 +4753,22 @@ static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
> return 0;
> }
>
> -static void kvm_vcpu_ioctl_x86_get_xcrs(struct kvm_vcpu *vcpu,
> - struct kvm_xcrs *guest_xcrs)
> +static int kvm_vcpu_ioctl_x86_get_xcrs(struct kvm_vcpu *vcpu,
> + struct kvm_xcrs *guest_xcrs)
> {
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> if (!boot_cpu_has(X86_FEATURE_XSAVE)) {
> guest_xcrs->nr_xcrs = 0;
> - return;
> + return 0;
> }
>
> guest_xcrs->nr_xcrs = 1;
> guest_xcrs->flags = 0;
> guest_xcrs->xcrs[0].xcr = XCR_XFEATURE_ENABLED_MASK;
> guest_xcrs->xcrs[0].value = vcpu->arch.xcr0;
> + return 0;
> }
>
> static int kvm_vcpu_ioctl_x86_set_xcrs(struct kvm_vcpu *vcpu,
> @@ -4741,6 +4776,9 @@ static int kvm_vcpu_ioctl_x86_set_xcrs(struct kvm_vcpu *vcpu,
> {
> int i, r = 0;
>
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> if (!boot_cpu_has(X86_FEATURE_XSAVE))
> return -EINVAL;
>
> @@ -5011,7 +5049,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
> case KVM_GET_DEBUGREGS: {
> struct kvm_debugregs dbgregs;
>
> - kvm_vcpu_ioctl_x86_get_debugregs(vcpu, &dbgregs);
> + r = kvm_vcpu_ioctl_x86_get_debugregs(vcpu, &dbgregs);
> + if (r)
> + break;
>
> r = -EFAULT;
> if (copy_to_user(argp, &dbgregs,
> @@ -5037,7 +5077,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
> if (!u.xsave)
> break;
>
> - kvm_vcpu_ioctl_x86_get_xsave(vcpu, u.xsave);
> + r = kvm_vcpu_ioctl_x86_get_xsave(vcpu, u.xsave);
> + if (r)
> + break;
>
> r = -EFAULT;
> if (copy_to_user(argp, u.xsave, sizeof(struct kvm_xsave)))
> @@ -5061,7 +5103,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
> if (!u.xcrs)
> break;
>
> - kvm_vcpu_ioctl_x86_get_xcrs(vcpu, u.xcrs);
> + r = kvm_vcpu_ioctl_x86_get_xcrs(vcpu, u.xcrs);
> + if (r)
> + break;
>
> r = -EFAULT;
> if (copy_to_user(argp, u.xcrs,
> @@ -9735,6 +9779,12 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
> goto out;
> }
>
> + if (vcpu->arch.guest_state_protected &&
> + (kvm_run->kvm_valid_regs || kvm_run->kvm_dirty_regs)) {
> + r = -EINVAL;
> + goto out;
> + }
> +
> if (kvm_run->kvm_dirty_regs) {
> r = sync_regs(vcpu);
> if (r != 0)
> @@ -9765,7 +9815,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
>
> out:
> kvm_put_guest_fpu(vcpu);
> - if (kvm_run->kvm_valid_regs)
> + if (kvm_run->kvm_valid_regs && !vcpu->arch.guest_state_protected)
> store_regs(vcpu);
> post_kvm_run_save(vcpu);
> kvm_sigset_deactivate(vcpu);
> @@ -9812,6 +9862,9 @@ static void __get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
>
> int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
> {
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> vcpu_load(vcpu);
> __get_regs(vcpu, regs);
> vcpu_put(vcpu);
> @@ -9852,6 +9905,9 @@ static void __set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
>
> int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
> {
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> vcpu_load(vcpu);
> __set_regs(vcpu, regs);
> vcpu_put(vcpu);
> @@ -9912,6 +9968,9 @@ static void __get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
> int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
> struct kvm_sregs *sregs)
> {
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> vcpu_load(vcpu);
> __get_sregs(vcpu, sregs);
> vcpu_put(vcpu);
> @@ -10112,6 +10171,9 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
> {
> int ret;
>
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> vcpu_load(vcpu);
> ret = __set_sregs(vcpu, sregs);
> vcpu_put(vcpu);
> @@ -10205,6 +10267,9 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
> {
> struct fxregs_state *fxsave;
>
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> if (!vcpu->arch.guest_fpu)
> return 0;
>
> @@ -10228,6 +10293,9 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
> {
> struct fxregs_state *fxsave;
>
> + if (vcpu->arch.guest_state_protected)
> + return -EINVAL;
> +
> if (!vcpu->arch.guest_fpu)
> return 0;
>
>
next prev parent reply other threads:[~2021-07-06 14:48 UTC|newest]
Thread overview: 175+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-02 22:04 [RFC PATCH v2 00/69] KVM: X86: TDX support isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 01/69] KVM: TDX: introduce config for KVM " isaku.yamahata
2021-07-06 12:33 ` Paolo Bonzini
2021-07-13 17:54 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 02/69] KVM: X86: move kvm_cpu_vmxon() from vmx.c to virtext.h isaku.yamahata
2021-07-06 12:33 ` Paolo Bonzini
2021-07-13 17:49 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 03/69] KVM: X86: move out the definition vmcs_hdr/vmcs from kvm to x86 isaku.yamahata
2021-07-06 12:33 ` Paolo Bonzini
2021-07-13 18:00 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 04/69] KVM: TDX: Add TDX "architectural" error codes isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 05/69] KVM: TDX: Add architectural definitions for structures and values isaku.yamahata
2021-07-31 1:04 ` Erdem Aktas
2021-08-02 13:25 ` Xiaoyao Li
2021-08-04 20:43 ` Erdem Aktas
2021-08-04 23:13 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 06/69] KVM: TDX: add a helper function for kvm to call seamcall isaku.yamahata
2021-07-06 12:57 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 07/69] KVM: TDX: define and export helper functions for KVM TDX support isaku.yamahata
2021-10-09 7:50 ` Wang, Wei W
2021-07-02 22:04 ` [RFC PATCH v2 08/69] KVM: TDX: add trace point before/after TDX SEAMCALLs isaku.yamahata
2021-07-06 13:23 ` Paolo Bonzini
2021-07-13 19:53 ` Sean Christopherson
2021-07-13 19:33 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 09/69] KVM: TDX: Add C wrapper functions for " isaku.yamahata
2021-07-06 13:25 ` Paolo Bonzini
2021-07-13 19:59 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 10/69] KVM: TDX: Print the name of SEAMCALL status code isaku.yamahata
2021-07-06 13:25 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 11/69] KVM: TDX: Introduce pr_seamcall_ex_ret_info() to print more info when SEAMCALL fails isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 12/69] KVM: Export kvm_io_bus_read for use by TDX for PV MMIO isaku.yamahata
2021-07-06 13:26 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 13/69] KVM: Enable hardware before doing arch VM initialization isaku.yamahata
2021-07-06 13:26 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 14/69] KVM: x86: Split core of hypercall emulation to helper function isaku.yamahata
2021-07-06 13:40 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 15/69] KVM: x86: Export kvm_mmio tracepoint for use by TDX for PV MMIO isaku.yamahata
2021-07-06 13:40 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 16/69] KVM: x86/mmu: Zap only leaf SPTEs for deleted/moved memslot by default isaku.yamahata
2021-07-06 13:44 ` Paolo Bonzini
2021-07-13 20:17 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 17/69] KVM: Add infrastructure and macro to mark VM as bugged isaku.yamahata
2021-07-06 13:45 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 18/69] KVM: Export kvm_make_all_cpus_request() for use in marking VMs " isaku.yamahata
2021-07-06 13:47 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 19/69] KVM: x86: Use KVM_BUG/KVM_BUG_ON to handle bugs that are fatal to the VM isaku.yamahata
2021-07-06 13:47 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 20/69] KVM: x86/mmu: Mark VM as bugged if page fault returns RET_PF_INVALID isaku.yamahata
2021-07-06 13:48 ` Paolo Bonzini
2021-07-13 20:28 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 21/69] KVM: Add max_vcpus field in common 'struct kvm' isaku.yamahata
2021-07-06 13:49 ` Paolo Bonzini
2021-07-13 20:35 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 22/69] KVM: x86: Add vm_type to differentiate legacy VMs from protected VMs isaku.yamahata
2021-07-06 13:56 ` Paolo Bonzini
2021-07-06 13:56 ` Paolo Bonzini
2021-07-13 20:39 ` Sean Christopherson
2021-11-11 3:28 ` Xiaoyao Li
2021-11-11 7:28 ` Paolo Bonzini
2021-11-11 8:29 ` Xiaoyao Li
2021-07-02 22:04 ` [RFC PATCH v2 23/69] KVM: x86: Hoist kvm_dirty_regs check out of sync_regs() isaku.yamahata
2021-07-06 13:57 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 24/69] KVM: x86: Introduce "protected guest" concept and block disallowed ioctls isaku.yamahata
2021-07-06 13:59 ` Paolo Bonzini [this message]
2021-07-20 22:08 ` Tom Lendacky
2021-11-09 13:37 ` Xiaoyao Li
2021-11-09 17:15 ` Paolo Bonzini
2021-11-10 1:45 ` Xiaoyao Li
2021-07-02 22:04 ` [RFC PATCH v2 25/69] KVM: x86: Add per-VM flag to disable direct IRQ injection isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 26/69] KVM: x86: Add flag to disallow #MC injection / KVM_X86_SETUP_MCE isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 27/69] KVM: x86: Add flag to mark TSC as immutable (for TDX) isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 28/69] KVM: Add per-VM flag to mark read-only memory as unsupported isaku.yamahata
2021-07-06 14:03 ` Paolo Bonzini
2021-07-06 19:04 ` Brijesh Singh
2021-07-02 22:04 ` [RFC PATCH v2 29/69] KVM: Add per-VM flag to disable dirty logging of memslots for TDs isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 30/69] KVM: x86: Add per-VM flag to disable in-kernel I/O APIC and level routes isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 31/69] KVM: x86: add per-VM flags to disable SMI/INIT/SIPI isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 32/69] KVM: x86: Allow host-initiated WRMSR to set X2APIC regardless of CPUID isaku.yamahata
2021-07-06 14:09 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 33/69] KVM: x86: Add kvm_x86_ops .cache_gprs() and .flush_gprs() isaku.yamahata
2021-07-06 14:10 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 34/69] KVM: x86: Add support for vCPU and device-scoped KVM_MEMORY_ENCRYPT_OP isaku.yamahata
2021-07-06 14:12 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 35/69] KVM: x86: Introduce vm_teardown() hook in kvm_arch_vm_destroy() isaku.yamahata
2021-07-06 14:34 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 36/69] KVM: x86: Add a switch_db_regs flag to handle TDX's auto-switched behavior isaku.yamahata
2021-07-06 14:36 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 37/69] KVM: x86: Check for pending APICv interrupt in kvm_vcpu_has_events() isaku.yamahata
2021-07-06 14:50 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 38/69] KVM: x86: Add option to force LAPIC expiration wait isaku.yamahata
2021-07-06 14:35 ` Paolo Bonzini
2021-07-13 20:51 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 39/69] KVM: x86: Add guest_supported_xss placholder isaku.yamahata
2021-07-06 14:41 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 40/69] KVM: Export kvm_is_reserved_pfn() for use by TDX isaku.yamahata
2021-07-06 14:32 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 41/69] KVM: x86: Add infrastructure for stolen GPA bits isaku.yamahata
2021-07-06 14:54 ` Paolo Bonzini
2021-08-05 11:44 ` Kai Huang
2021-08-05 16:06 ` Sean Christopherson
2021-08-05 17:07 ` Edgecombe, Rick P
2021-08-05 17:39 ` Sean Christopherson
2021-08-05 18:43 ` Edgecombe, Rick P
2021-08-05 18:58 ` Sean Christopherson
2021-08-05 21:59 ` Kai Huang
2021-08-06 19:02 ` Sean Christopherson
2021-08-06 22:00 ` Kai Huang
2021-08-06 22:09 ` Sean Christopherson
2021-08-06 22:24 ` Kai Huang
2021-07-02 22:04 ` [RFC PATCH v2 42/69] KVM: x86/mmu: Explicitly check for MMIO spte in fast page fault isaku.yamahata
2021-07-06 14:54 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 43/69] KVM: x86/mmu: Allow non-zero init value for shadow PTE isaku.yamahata
2021-07-06 14:56 ` Paolo Bonzini
2021-07-08 15:20 ` Isaku Yamahata
2021-07-02 22:04 ` [RFC PATCH v2 44/69] KVM: x86/mmu: Refactor shadow walk in __direct_map() to reduce indentation isaku.yamahata
2021-07-06 14:56 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 45/69] KVM: x86/mmu: Return old SPTE from mmu_spte_clear_track_bits() isaku.yamahata
2021-07-06 14:56 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 46/69] KVM: x86/mmu: Frame in support for private/inaccessible shadow pages isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 47/69] KVM: x86/mmu: Move 'pfn' variable to caller of direct_page_fault() isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 48/69] KVM: x86/mmu: Introduce kvm_mmu_map_tdp_page() for use by TDX isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 49/69] KVM: VMX: Modify NMI and INTR handlers to take intr_info as param isaku.yamahata
2021-07-06 14:50 ` Paolo Bonzini
2021-07-02 22:04 ` [RFC PATCH v2 50/69] KVM: VMX: Move NMI/exception handler to common helper isaku.yamahata
2021-07-02 22:04 ` [RFC PATCH v2 51/69] KVM: x86/mmu: Allow per-VM override of the TDP max page level isaku.yamahata
2021-07-06 14:58 ` Paolo Bonzini
2021-07-13 21:02 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 52/69] KVM: VMX: Split out guts of EPT violation to common/exposed function isaku.yamahata
2021-07-06 14:52 ` Paolo Bonzini
2021-07-13 20:57 ` Sean Christopherson
2021-07-02 22:04 ` [RFC PATCH v2 53/69] KVM: VMX: Define EPT Violation architectural bits isaku.yamahata
2021-07-06 14:41 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 54/69] KVM: VMX: Define VMCS encodings for shared EPT pointer isaku.yamahata
2021-07-06 14:42 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 55/69] KVM: VMX: Add 'main.c' to wrap VMX and TDX isaku.yamahata
2021-07-06 14:43 ` Paolo Bonzini
2021-07-08 15:21 ` Isaku Yamahata
2021-07-08 15:29 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 56/69] KVM: VMX: Move setting of EPT MMU masks to common VT-x code isaku.yamahata
2021-07-06 14:43 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 57/69] KVM: VMX: Move register caching logic to common code isaku.yamahata
2021-07-06 14:44 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 58/69] KVM: TDX: Define TDCALL exit reason isaku.yamahata
2021-07-02 22:05 ` [RFC PATCH v2 59/69] KVM: TDX: Stub in tdx.h with structs, accessors, and VMCS helpers isaku.yamahata
2021-07-02 22:05 ` [RFC PATCH v2 60/69] KVM: VMX: Add macro framework to read/write VMCS for VMs and TDs isaku.yamahata
2021-07-06 14:46 ` Paolo Bonzini
2021-07-13 20:56 ` Sean Christopherson
2021-07-02 22:05 ` [RFC PATCH v2 61/69] KVM: VMX: Move AR_BYTES encoder/decoder helpers to common.h isaku.yamahata
2021-07-06 14:46 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 62/69] KVM: VMX: MOVE GDT and IDT accessors to common code isaku.yamahata
2021-07-06 14:46 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 63/69] KVM: VMX: Move .get_interrupt_shadow() implementation to common VMX code isaku.yamahata
2021-07-06 14:17 ` Paolo Bonzini
2021-07-13 20:45 ` Sean Christopherson
2021-07-02 22:05 ` [RFC PATCH v2 64/69] cpu/hotplug: Document that TDX also depends on booting CPUs once isaku.yamahata
2021-07-02 22:05 ` [RFC PATCH v2 65/69] KVM: X86: Introduce initial_tsc_khz in struct kvm_arch isaku.yamahata
2021-07-06 14:22 ` Paolo Bonzini
2021-07-13 18:14 ` Sean Christopherson
2021-07-26 5:31 ` Xiaoyao Li
2021-07-13 18:09 ` Sean Christopherson
2021-07-02 22:05 ` [RFC PATCH v2 66/69] KVM: TDX: Add "basic" support for building and running Trust Domains isaku.yamahata
[not found] ` <CAAYXXYyz3S_cc9ohfkUWN4ohrNq5f+h3608CW5twb-n8i=ogBA@mail.gmail.com>
2021-10-21 21:44 ` Sagi Shahar
2021-10-24 12:59 ` Xiaoyao Li
2021-07-02 22:05 ` [RFC PATCH v2 67/69] KVM: TDX: add trace point for TDVMCALL and SEPT operation isaku.yamahata
2021-07-06 14:23 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 68/69] KVM: TDX: add document on TDX MODULE isaku.yamahata
2021-07-06 14:23 ` Paolo Bonzini
2021-07-02 22:05 ` [RFC PATCH v2 69/69] Documentation/virtual/kvm: Add Trust Domain Extensions(TDX) isaku.yamahata
2021-07-06 14:49 ` [RFC PATCH v2 00/69] KVM: X86: TDX support Paolo Bonzini
2021-07-06 14:53 ` Paolo Bonzini
2021-07-26 12:56 ` Paolo Bonzini
2021-07-28 16:51 ` Sean Christopherson
2021-08-02 7:33 ` Paolo Bonzini
2021-08-02 15:12 ` Sean Christopherson
2021-08-02 15:46 ` Paolo Bonzini
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