From: Michael Roth <michael.roth@amd.com>
To: Isaku Yamahata <isaku.yamahata@gmail.com>
Cc: <kvm@vger.kernel.org>, <linux-coco@lists.linux.dev>,
<linux-mm@kvack.org>, <linux-crypto@vger.kernel.org>,
<x86@kernel.org>, <linux-kernel@vger.kernel.org>,
<tglx@linutronix.de>, <mingo@redhat.com>, <jroedel@suse.de>,
<thomas.lendacky@amd.com>, <hpa@zytor.com>, <ardb@kernel.org>,
<pbonzini@redhat.com>, <seanjc@google.com>, <vkuznets@redhat.com>,
<jmattson@google.com>, <luto@kernel.org>,
<dave.hansen@linux.intel.com>, <slp@redhat.com>,
<pgonda@google.com>, <peterz@infradead.org>,
<srinivas.pandruvada@linux.intel.com>, <rientjes@google.com>,
<dovmurik@linux.ibm.com>, <tobin@ibm.com>, <bp@alien8.de>,
<vbabka@suse.cz>, <kirill@shutemov.name>, <ak@linux.intel.com>,
<tony.luck@intel.com>, <marcorr@google.com>,
<sathyanarayanan.kuppuswamy@linux.intel.com>,
<alpergun@google.com>, <dgilbert@redhat.com>, <jarkko@kernel.org>,
<ashish.kalra@amd.com>, <nikunj.dadhania@amd.com>
Subject: Re: [PATCH RFC v8 02/56] KVM: x86: Add 'update_mem_attr' x86 op
Date: Mon, 20 Mar 2023 13:05:43 -0500 [thread overview]
Message-ID: <20230320180543.ly4jgu54hyamy2gl@amd.com> (raw)
In-Reply-To: <20230318045611.GE408922@ls.amr.corp.intel.com>
On Fri, Mar 17, 2023 at 09:56:11PM -0700, Isaku Yamahata wrote:
> On Mon, Feb 20, 2023 at 12:37:53PM -0600,
> Michael Roth <michael.roth@amd.com> wrote:
>
> > This callback will do any platform-specific handling needed for
> > converting pages between shared/private.
> >
> > Signed-off-by: Michael Roth <michael.roth@amd.com>
> > ---
> > arch/x86/include/asm/kvm-x86-ops.h | 1 +
> > arch/x86/include/asm/kvm_host.h | 2 ++
> > arch/x86/kvm/mmu/mmu.c | 13 +++++++++++++
> > include/linux/kvm_host.h | 4 ++++
> > virt/kvm/kvm_main.c | 29 +++++++++++++++++++++++++++++
> > 5 files changed, 49 insertions(+)
> >
> > diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h
> > index 72183da010b8..a8aaf532c2ab 100644
> > --- a/arch/x86/include/asm/kvm-x86-ops.h
> > +++ b/arch/x86/include/asm/kvm-x86-ops.h
> > @@ -132,6 +132,7 @@ KVM_X86_OP(complete_emulated_msr)
> > KVM_X86_OP(vcpu_deliver_sipi_vector)
> > KVM_X86_OP_OPTIONAL_RET0(vcpu_get_apicv_inhibit_reasons);
> > KVM_X86_OP_OPTIONAL_RET0(fault_is_private);
> > +KVM_X86_OP_OPTIONAL_RET0(update_mem_attr)
> >
> > #undef KVM_X86_OP
> > #undef KVM_X86_OP_OPTIONAL
> > diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> > index f856d689dda0..2da3fb2d5d1b 100644
> > --- a/arch/x86/include/asm/kvm_host.h
> > +++ b/arch/x86/include/asm/kvm_host.h
> > @@ -1644,6 +1644,8 @@ struct kvm_x86_ops {
> > void (*load_mmu_pgd)(struct kvm_vcpu *vcpu, hpa_t root_hpa,
> > int root_level);
> > bool (*fault_is_private)(struct kvm *kvm, gpa_t gpa, u64 error_code, bool *private_fault);
> > + int (*update_mem_attr)(struct kvm_memory_slot *slot, unsigned int attr,
> > + gfn_t start, gfn_t end);
> >
> > bool (*has_wbinvd_exit)(void);
> >
> > diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
> > index fb3f34b7391c..053bd77bbf52 100644
> > --- a/arch/x86/kvm/mmu/mmu.c
> > +++ b/arch/x86/kvm/mmu/mmu.c
> > @@ -7251,4 +7251,17 @@ void kvm_arch_set_memory_attributes(struct kvm *kvm,
> > linfo_update_mixed(gfn, slot, level, mixed);
> > }
> > }
> > +
> > +void kvm_arch_post_set_memory_attributes(struct kvm *kvm,
> > + struct kvm_memory_slot *slot,
> > + unsigned long attrs,
> > + gfn_t start, gfn_t end)
> > +{
> > + int ret;
> > +
> > + ret = static_call(kvm_x86_update_mem_attr)(slot, attrs, start, end);
> > + if (ret)
> > + pr_warn_ratelimited("Failed to update GFN range 0x%llx-0x%llx with attributes 0x%lx. Ret: %d\n",
> > + start, end, attrs, ret);
> > +}
> > #endif
> > diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> > index fdc59479b3e2..d200b8f45583 100644
> > --- a/include/linux/kvm_host.h
> > +++ b/include/linux/kvm_host.h
> > @@ -2330,6 +2330,10 @@ void kvm_arch_set_memory_attributes(struct kvm *kvm,
> > struct kvm_memory_slot *slot,
> > unsigned long attrs,
> > gfn_t start, gfn_t end);
> > +void kvm_arch_post_set_memory_attributes(struct kvm *kvm,
> > + struct kvm_memory_slot *slot,
> > + unsigned long attrs,
> > + gfn_t start, gfn_t end);
> >
> > static inline bool kvm_mem_is_private(struct kvm *kvm, gfn_t gfn)
> > {
> > diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> > index b68574ff6c30..8ec985f1c57d 100644
> > --- a/virt/kvm/kvm_main.c
> > +++ b/virt/kvm/kvm_main.c
> > @@ -2561,6 +2561,32 @@ static void kvm_mem_attrs_changed(struct kvm *kvm, unsigned long attrs,
> > kvm_flush_remote_tlbs(kvm);
> > }
> >
> > +static void kvm_post_mem_attrs_changed(struct kvm *kvm, unsigned long attrs,
> > + gfn_t start_orig, gfn_t end_orig)
> > +{
> > + struct kvm_memory_slot *slot;
> > + struct kvm_memslots *slots;
> > + struct kvm_memslot_iter iter;
> > + int i;
> > +
> > + for (i = 0; i < kvm_arch_nr_memslot_as_ids(kvm); i++) {
> > + slots = __kvm_memslots(kvm, i);
> > +
> > + kvm_for_each_memslot_in_gfn_range(&iter, slots, start_orig, end_orig) {
> > + gfn_t start, end;
> > +
> > + slot = iter.slot;
> > + start = max(start_orig, slot->base_gfn);
> > + end = min(end_orig, slot->base_gfn + slot->npages);
> > +
> > + if (start >= end)
> > + continue;
> > +
> > + kvm_arch_post_set_memory_attributes(kvm, slot, attrs, start, end);
> > + }
> > + }
> > +}
> > +
> > static int kvm_vm_ioctl_set_mem_attributes(struct kvm *kvm,
> > struct kvm_memory_attributes *attrs)
> > {
> > @@ -2602,6 +2628,9 @@ static int kvm_vm_ioctl_set_mem_attributes(struct kvm *kvm,
> > kvm_mmu_invalidate_end(kvm);
> > KVM_MMU_UNLOCK(kvm);
> >
> > + if (i > start)
> > + kvm_post_mem_attrs_changed(kvm, attrs->attributes, start, i);
> > +
>
> Doesn't kvm_arch_set_memory_attributes() work for you? i.e the following patch.
> The error check and pr_warn_ratelimited() can be pushed down into the callback.
This is originally how I had but when CONFIG_PREEMPT_COUNT is set this
will generate warnings for this callback as well as the invalidation
callback as reported in v7 here:
https://lore.kernel.org/lkml/Y80vhKwQyw8hS%2F22@notebook/
The main issue is that kvm_mem_attrs_changed() is called while holding
the KVM MMU lock, which disables preemption. But when updating
attributes for SNP, we also need to remove private pages from kernel
directmap, which involves acquiring a mutex which results in
"BUG: scheduling while atomic" warnings.
So that's why we ended up somewhat duplicating some of the logic and
using a separate callback chain that happens out of KVM MMU lock.
-Mike
>
> From 7c618c1f3c236c382e64680efcbe7d8a672aa870 Mon Sep 17 00:00:00 2001
> Message-Id: <7c618c1f3c236c382e64680efcbe7d8a672aa870.1679114841.git.isaku.yamahata@intel.com>
> In-Reply-To: <428a676face7a06a90e59dca1c32941c9b6ee001.1679114841.git.isaku.yamahata@intel.com>
> References: <428a676face7a06a90e59dca1c32941c9b6ee001.1679114841.git.isaku.yamahata@intel.com>
> From: Isaku Yamahata <isaku.yamahata@intel.com>
> Date: Fri, 17 Mar 2023 12:00:09 -0700
> Subject: [PATCH 4/4] KVM: x86: Add 'set_mem_attr' x86 op
>
> This callback will do any platform-specific handling needed for
> converting pages between shared/private.
>
> Originally-by: Michael Roth <michael.roth@amd.com>
> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
> ---
> arch/x86/include/asm/kvm-x86-ops.h | 1 +
> arch/x86/include/asm/kvm_host.h | 2 ++
> arch/x86/kvm/mmu/mmu.c | 1 +
> 3 files changed, 4 insertions(+)
>
> diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h
> index dc5f18ac0bd5..956db2ee25a5 100644
> --- a/arch/x86/include/asm/kvm-x86-ops.h
> +++ b/arch/x86/include/asm/kvm-x86-ops.h
> @@ -100,6 +100,7 @@ KVM_X86_OP_OPTIONAL_RET0(set_identity_map_addr)
> KVM_X86_OP_OPTIONAL_RET0(get_mt_mask)
> KVM_X86_OP(load_mmu_pgd)
> KVM_X86_OP(fault_is_private)
> +KVM_X86_OP_OPTIONAL(set_mem_attr)
> KVM_X86_OP_OPTIONAL(link_private_spt)
> KVM_X86_OP_OPTIONAL(free_private_spt)
> KVM_X86_OP_OPTIONAL(split_private_spt)
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 0382d236fbf4..88e11dd3afde 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1731,6 +1731,8 @@ struct kvm_x86_ops {
> void (*load_mmu_pgd)(struct kvm_vcpu *vcpu, hpa_t root_hpa,
> int root_level);
> bool (*fault_is_private)(struct kvm *kvm, gpa_t gpa, u64 error_code);
> + void (*set_mem_attr)(struct kvm *kvm, struct kvm_memory_slot *slot,
> + unsigned int attr, gfn_t start, gfn_t end);
>
> int (*link_private_spt)(struct kvm *kvm, gfn_t gfn, enum pg_level level,
> void *private_spt);
> diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
> index 0ec94c72895c..329333486e64 100644
> --- a/arch/x86/kvm/mmu/mmu.c
> +++ b/arch/x86/kvm/mmu/mmu.c
> @@ -7908,6 +7908,7 @@ void kvm_arch_set_memory_attributes(struct kvm *kvm,
> gfn_t start, gfn_t end)
> {
> kvm_update_lpage_mixed_flag(kvm, slot, true, attrs, start, end);
> + static_call(kvm_x86_set_mem_attr)(kvm, slot, attrs, start, end);
> }
>
> void kvm_memory_attributes_create_memslot(struct kvm *kvm,
> --
> 2.25.1
>
> --
> Isaku Yamahata <isaku.yamahata@gmail.com>
next prev parent reply other threads:[~2023-03-20 18:13 UTC|newest]
Thread overview: 147+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-20 18:37 [PATCH RFC v8 00/56] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support Michael Roth
2023-02-20 18:37 ` [PATCH RFC v8 01/56] KVM: x86: Add 'fault_is_private' x86 op Michael Roth
2023-03-01 10:25 ` Zhi Wang
2023-03-18 4:51 ` Isaku Yamahata
2023-03-20 17:46 ` Michael Roth
2023-03-18 4:53 ` Isaku Yamahata
2023-02-20 18:37 ` [PATCH RFC v8 02/56] KVM: x86: Add 'update_mem_attr' " Michael Roth
2023-03-18 4:56 ` Isaku Yamahata
2023-03-20 18:05 ` Michael Roth [this message]
2023-03-21 11:21 ` Zhi Wang
2023-03-22 1:58 ` Michael Roth
2023-03-23 18:17 ` Zhi Wang
2023-03-28 4:36 ` Michael Roth
2023-03-28 23:00 ` Zhi Wang
2023-03-29 23:50 ` Michael Roth
2023-02-20 18:37 ` [PATCH RFC v8 03/56] KVM: x86: Add platform hooks for private memory invalidations Michael Roth
2023-03-18 5:13 ` Isaku Yamahata
2023-03-20 18:09 ` Michael Roth
2023-02-20 18:37 ` [PATCH RFC v8 04/56] KVM: Add HVA range operator Michael Roth
2023-02-20 21:37 ` Zhi Wang
2023-03-27 0:34 ` Michael Roth
2023-04-04 14:40 ` Zhi Wang
2023-02-20 18:37 ` [PATCH RFC v8 05/56] KVM: SEV: Require KVM_PROTECTED_VM when AMD_MEM_ENCRYPT is enabled Michael Roth
2023-02-20 18:37 ` [PATCH RFC v8 06/56] KVM: Split out memory attribute xarray updates to helper function Michael Roth
2023-02-20 18:37 ` [PATCH RFC v8 07/56] KVM: SEV: Populate private memory fd during LAUNCH_UPDATE_DATA Michael Roth
2023-02-20 18:37 ` [PATCH RFC v8 08/56] KVM: SEV: Rename sev_{pin,unpin}_memory Michael Roth
2023-03-03 14:00 ` Vlastimil Babka
2023-03-06 11:01 ` Nikunj A. Dadhania
2023-02-20 18:38 ` [PATCH RFC v8 09/56] KVM: SEV: Handle memory backed by restricted memfd Michael Roth
2023-03-03 14:05 ` Vlastimil Babka
2023-03-06 11:03 ` Nikunj A. Dadhania
2023-02-20 18:38 ` [PATCH RFC v8 10/56] x86/cpufeatures: Add SEV-SNP CPU feature Michael Roth
2023-02-21 21:21 ` Sathyanarayanan Kuppuswamy
2023-02-22 23:27 ` Kalra, Ashish
2023-02-20 18:38 ` [PATCH RFC v8 11/56] x86/sev: Add the host SEV-SNP initialization support Michael Roth
2023-02-20 20:12 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 12/56] x86/sev: Add RMP entry lookup helpers Michael Roth
2023-03-03 15:28 ` Vlastimil Babka
2023-03-29 22:59 ` Michael Roth
2023-04-20 16:31 ` Vlastimil Babka
2023-02-20 18:38 ` [PATCH RFC v8 13/56] x86/fault: Add helper for dumping RMP entries Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 14/56] x86/sev: Add helper functions for RMPUPDATE and PSMASH instruction Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 15/56] x86/sev: Invalidate pages from the direct map when adding them to the RMP table Michael Roth
2023-03-01 12:07 ` Tom Dohrmann
2023-03-01 16:15 ` Dave Hansen
2023-03-28 22:12 ` Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 16/56] x86/traps: Define RMP violation #PF error code Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 17/56] x86/fault: Add support to handle the RMP fault for user address Michael Roth
2023-03-01 16:21 ` Dave Hansen
2023-03-28 23:31 ` Michael Roth
2023-04-11 18:27 ` Dave Hansen
2023-03-03 15:31 ` Vlastimil Babka
2023-02-20 18:38 ` [PATCH RFC v8 18/56] x86/fault: fix handle_split_page_fault() to work with memfd backed pages Michael Roth
2023-02-20 19:57 ` Hugh Dickins
2023-02-20 20:31 ` Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 19/56] x86/fault: Return pfn from dump_pagetable() for SEV-specific fault handling Michael Roth
2023-02-20 21:13 ` Zhi Wang
2023-02-28 10:53 ` Wu Zongyong
2023-02-20 18:38 ` [PATCH RFC v8 20/56] crypto:ccp: Define the SEV-SNP commands Michael Roth
2023-04-17 14:54 ` Sabin Rapan
2023-02-20 18:38 ` [PATCH RFC v8 21/56] crypto: ccp: Add support to initialize the AMD-SP for SEV-SNP Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 22/56] crypto:ccp: Provide API to issue SEV and SNP commands Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 23/56] crypto: ccp: Introduce snp leaked pages list Michael Roth
2023-03-03 15:54 ` Vlastimil Babka
2023-02-20 18:38 ` [PATCH RFC v8 24/56] crypto: ccp: Handle the legacy TMR allocation when SNP is enabled Michael Roth
2023-02-21 9:28 ` Zhi Wang
2023-02-21 15:31 ` Kalra, Ashish
2023-02-21 21:15 ` Zhi Wang
2023-02-21 22:06 ` Kalra, Ashish
2023-02-20 18:38 ` [PATCH RFC v8 25/56] crypto: ccp: Handle the legacy SEV command " Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 26/56] crypto: ccp: Add the SNP_PLATFORM_STATUS command Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 27/56] crypto: ccp: Add the SNP_{SET,GET}_EXT_CONFIG command Michael Roth
2023-02-22 12:32 ` Zhi Wang
2023-02-22 16:50 ` Tom Lendacky
2023-02-22 22:43 ` Kalra, Ashish
2023-02-23 6:38 ` Zhi Wang
2023-02-23 14:19 ` Tom Lendacky
2023-02-20 18:38 ` [PATCH RFC v8 28/56] crypto: ccp: Provide APIs to query extended attestation report Michael Roth
2023-02-22 20:24 ` Zhi Wang
2023-02-22 22:35 ` Kalra, Ashish
2023-02-23 8:14 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 29/56] KVM: SVM: Add support to handle AP reset MSR protocol Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 30/56] KVM: SVM: Provide the Hypervisor Feature support VMGEXIT Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 31/56] KVM: SVM: Make AVIC backing, VMSA and VMCB memory allocation SNP safe Michael Roth
2023-02-22 20:42 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 32/56] KVM: SVM: Add initial SEV-SNP support Michael Roth
2023-02-23 17:46 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 33/56] KVM: SVM: Add KVM_SNP_INIT command Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 34/56] KVM: SVM: Add KVM_SEV_SNP_LAUNCH_START command Michael Roth
2023-02-23 21:41 ` Zhi Wang
2023-02-24 16:22 ` Tom Lendacky
2023-04-26 17:06 ` Sabin Rapan
2023-04-26 18:02 ` Tom Lendacky
2023-02-20 18:38 ` [PATCH RFC v8 35/56] KVM: SVM: Add KVM_SEV_SNP_LAUNCH_UPDATE command Michael Roth
2023-02-24 11:55 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 36/56] KVM: SVM: Add KVM_SEV_SNP_LAUNCH_FINISH command Michael Roth
2023-03-24 14:40 ` Alexander Graf
2023-02-20 18:38 ` [PATCH RFC v8 37/56] KVM: X86: Keep the NPT and RMP page level in sync Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 38/56] KVM: x86: Define RMP page fault error bits for #NPF Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 39/56] KVM: SVM: Add support to handle GHCB GPA register VMGEXIT Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 40/56] KVM: SVM: Add KVM_EXIT_VMGEXIT Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 41/56] KVM: SVM: Add support to handle MSR based Page State Change VMGEXIT Michael Roth
2023-02-24 15:06 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 42/56] KVM: SVM: Add support to handle " Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 43/56] KVM: x86: Export the kvm_zap_gfn_range() for the SNP use Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 44/56] KVM: SVM: Add support to handle the RMP nested page fault Michael Roth
2023-02-28 19:11 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 45/56] KVM: SVM: Provide support for SNP_GUEST_REQUEST NAE event Michael Roth
2023-02-24 11:01 ` Alexander Graf
2023-02-28 19:34 ` Zhi Wang
2023-04-17 13:05 ` Alexander Graf
2023-02-20 18:38 ` [PATCH RFC v8 46/56] KVM: SVM: Use a VMSA physical address variable for populating VMCB Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 47/56] KVM: SVM: Support SEV-SNP AP Creation NAE event Michael Roth
2023-02-24 12:37 ` Alexander Graf
2023-02-28 20:47 ` Zhi Wang
2023-03-01 21:14 ` Alexander Graf
2023-04-05 0:54 ` Michael Roth
2023-04-04 22:48 ` Michael Roth
2023-04-05 15:20 ` Tom Lendacky
2023-02-20 18:38 ` [PATCH RFC v8 48/56] KVM: SVM: Add SNP-specific handling for memory attribute updates Michael Roth
2023-03-01 23:37 ` Dave Hansen
2023-04-05 23:48 ` Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 49/56] KVM: SVM: Implement .fault_is_private callback for SNP Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 50/56] KVM: SEV: Handle restricted memory invalidations " Michael Roth
2023-03-01 10:41 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 51/56] KVM: SVM: Add module parameter to enable the SEV-SNP Michael Roth
2023-03-01 10:45 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 52/56] ccp: Add support to decrypt the page Michael Roth
2023-03-01 21:20 ` Zhi Wang
2023-03-02 5:59 ` Dov Murik
2023-03-02 14:33 ` Tom Lendacky
2023-03-02 21:11 ` Dov Murik
2023-02-20 18:38 ` [PATCH RFC v8 53/56] KVM: SVM: Make VMSAVE target area memory allocation SNP safe Michael Roth
2023-03-01 21:23 ` Zhi Wang
2023-02-20 18:38 ` [PATCH RFC v8 54/56] x86/sev: Add KVM commands for instance certs Michael Roth
2023-02-21 12:40 ` Dov Murik
2023-03-02 0:02 ` Zhi Wang
2023-03-02 1:41 ` Dionna Amalie Glaze
2023-03-02 11:27 ` Zhi Wang
2023-03-02 11:34 ` Dov Murik
2023-02-20 18:38 ` [PATCH RFC v8 55/56] x86/sev: Document KVM_SEV_SNP_{G,S}ET_CERTS Michael Roth
2023-02-20 18:38 ` [PATCH RFC v8 56/56] iommu/amd: Add IOMMU_SNP_SHUTDOWN support Michael Roth
2023-03-01 16:56 ` [PATCH RFC v8 00/56] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support Dave Hansen
2023-03-01 22:59 ` Zhi Wang
2023-03-01 23:39 ` Dave Hansen
2023-08-03 18:27 ` Schander, Johanna 'Mimoja' Amelie
2023-08-04 1:01 ` Kalra, Ashish
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