From: David Hildenbrand <david@redhat.com>
To: Peter Xu <peterx@redhat.com>
Cc: "Michael Roth" <michael.roth@amd.com>,
qemu-devel@nongnu.org, kvm@vger.kernel.org,
"Tom Lendacky" <thomas.lendacky@amd.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Pankaj Gupta" <pankaj.gupta@amd.com>,
"Xiaoyao Li" <xiaoyao.li@intel.com>,
"Isaku Yamahata" <isaku.yamahata@linux.intel.com>
Subject: Re: [PATCH v3 07/49] HostMem: Add mechanism to opt in kvm guest memfd via MachineState
Date: Tue, 21 Jan 2025 22:00:54 +0100 [thread overview]
Message-ID: <0eb47f8c-5301-4102-9295-428d6dba0e2f@redhat.com> (raw)
In-Reply-To: <Z5AKycFhAX523qzl@x1n>
On 21.01.25 21:59, Peter Xu wrote:
> On Tue, Jan 21, 2025 at 09:41:55PM +0100, David Hildenbrand wrote:
>> So far my understanding is that Google that does shared+private guest_memfd
>> kernel part won't be working on QEMU patches. I raised that to our
>> management recently, that this would be a good project for RH to focus on.
>>
>> I am not aware of real implementations of the guest_memfd backend (yet).
>
> I see, thanks, those are pretty useful information to me.
>
> I think I have a rough picture now. Since I've already had some patches
> going that direction, I'll give it a shot. I'll keep you updated if I get
> something.
Nice!
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2025-01-21 21:01 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-20 8:38 [PATCH RFC v3 00/49] Add AMD Secure Nested Paging (SEV-SNP) support Michael Roth
2024-03-20 8:38 ` [PATCH v3 01/49] Revert "linux-headers hack" from sevinit2 base tree Michael Roth
2024-03-20 8:38 ` [PATCH v3 02/49] scripts/update-linux-headers: Add setup_data.h to import list Michael Roth
2024-03-20 9:19 ` Paolo Bonzini
2024-03-20 8:38 ` [PATCH v3 03/49] scripts/update-linux-headers: Add bits.h to file imports Michael Roth
2024-03-20 8:39 ` [PATCH v3 04/49] [HACK] linux-headers: Update headers for 6.8 + kvm-coco-queue + SNP Michael Roth
2024-03-20 8:39 ` [PATCH v3 05/49] [TEMP] hw/i386: Remove redeclaration of struct setup_data Michael Roth
2024-03-20 8:39 ` [PATCH v3 06/49] RAMBlock: Add support of KVM private guest memfd Michael Roth
2024-03-20 16:38 ` Paolo Bonzini
2024-03-20 8:39 ` [PATCH v3 07/49] HostMem: Add mechanism to opt in kvm guest memfd via MachineState Michael Roth
2025-01-21 17:39 ` Peter Xu
2025-01-21 18:24 ` David Hildenbrand
2025-01-21 20:21 ` Peter Xu
2025-01-21 20:41 ` David Hildenbrand
2025-01-21 20:59 ` Peter Xu
2025-01-21 21:00 ` David Hildenbrand [this message]
2024-03-20 8:39 ` [PATCH v3 08/49] trace/kvm: Split address space and slot id in trace_kvm_set_user_memory() Michael Roth
2024-03-20 8:39 ` [PATCH v3 09/49] kvm: Enable KVM_SET_USER_MEMORY_REGION2 for memslot Michael Roth
2024-03-20 15:56 ` Paolo Bonzini
2024-03-20 8:39 ` [PATCH v3 10/49] kvm: Introduce support for memory_attributes Michael Roth
2024-03-20 16:00 ` Paolo Bonzini
2024-03-20 8:39 ` [PATCH v3 11/49] physmem: Introduce ram_block_discard_guest_memfd_range() Michael Roth
2024-03-20 9:37 ` David Hildenbrand
2024-03-20 12:43 ` Xiaoyao Li
2024-03-20 12:58 ` David Hildenbrand
2024-03-20 17:38 ` Michael Roth
2024-03-20 20:04 ` David Hildenbrand
2024-03-21 20:24 ` Michael Roth
2024-03-20 8:39 ` [PATCH v3 12/49] kvm: handle KVM_EXIT_MEMORY_FAULT Michael Roth
2024-03-20 8:39 ` [PATCH v3 13/49] [FIXUP] "kvm: handle KVM_EXIT_MEMORY_FAULT": drop qemu_host_page_size Michael Roth
2024-03-20 12:46 ` Xiaoyao Li
2024-03-20 8:39 ` [PATCH v3 14/49] trace/kvm: Add trace for page convertion between shared and private Michael Roth
2024-03-20 8:39 ` [PATCH v3 15/49] kvm/memory: Make memory type private by default if it has guest memfd backend Michael Roth
2024-03-20 8:39 ` [PATCH v3 16/49] memory: Introduce memory_region_init_ram_guest_memfd() Michael Roth
2024-03-20 8:39 ` [PATCH v3 17/49] pci-host/q35: Move PAM initialization above SMRAM initialization Michael Roth
2024-03-20 8:39 ` [PATCH v3 18/49] q35: Introduce smm_ranges property for q35-pci-host Michael Roth
2024-03-20 8:39 ` [PATCH v3 19/49] kvm: Make kvm_convert_memory() obey ram_block_discard_is_enabled() Michael Roth
2024-03-20 16:26 ` Paolo Bonzini
2024-03-20 19:47 ` Michael Roth
2024-03-20 8:39 ` [PATCH v3 20/49] trace/kvm: Add trace for KVM_EXIT_MEMORY_FAULT Michael Roth
2024-03-20 8:39 ` [PATCH v3 21/49] i386/sev: Introduce "sev-common" type to encapsulate common SEV state Michael Roth
2024-03-20 11:44 ` Daniel P. Berrangé
2024-03-20 21:36 ` Michael Roth via
2024-03-27 15:22 ` Markus Armbruster
2024-03-20 11:47 ` Daniel P. Berrangé
2024-03-20 21:45 ` Michael Roth via
2024-04-22 13:06 ` Markus Armbruster
2024-03-20 8:39 ` [PATCH v3 22/49] i386/sev: Introduce 'sev-snp-guest' object Michael Roth
2024-03-20 11:58 ` Daniel P. Berrangé
2024-03-20 22:09 ` Michael Roth via
2024-04-22 13:52 ` Markus Armbruster
2024-03-20 8:39 ` [PATCH v3 23/49] i386/sev: Add a sev_snp_enabled() helper Michael Roth
2024-03-20 12:35 ` Daniel P. Berrangé
2024-03-20 22:11 ` Michael Roth via
2024-03-20 8:39 ` [PATCH v3 24/49] target/i386: Add handling for KVM_X86_SNP_VM VM type Michael Roth
2024-03-20 9:33 ` Paolo Bonzini
2024-03-20 8:39 ` [PATCH v3 25/49] i386/sev: Skip RAMBlock notifiers for SNP Michael Roth
2024-03-20 9:46 ` Paolo Bonzini
2024-03-20 22:14 ` Michael Roth
2024-03-20 8:39 ` [PATCH v3 26/49] i386/sev: Skip machine-init-done " Michael Roth
2024-03-20 8:39 ` [PATCH v3 27/49] i386/sev: Set ms->require_guest_memfd " Michael Roth
2024-03-20 9:48 ` Paolo Bonzini
2024-03-20 8:39 ` [PATCH v3 28/49] i386/sev: Disable SMM " Michael Roth
2024-03-20 12:32 ` Daniel P. Berrangé
2024-03-20 8:39 ` [PATCH v3 29/49] i386/sev: Don't disable block discarding " Michael Roth
2024-03-20 12:33 ` Daniel P. Berrangé
2024-03-20 8:39 ` [PATCH v3 30/49] i386/cpu: Set SEV-SNP CPUID bit when SNP enabled Michael Roth
2024-03-20 8:39 ` [PATCH v3 31/49] i386/sev: Update query-sev QAPI format to handle SEV-SNP Michael Roth
2024-03-20 12:10 ` Daniel P. Berrangé
2024-03-20 22:23 ` Michael Roth via
2024-04-22 15:01 ` Markus Armbruster
2024-03-20 8:39 ` [PATCH v3 32/49] i386/sev: Don't return launch measurements for SEV-SNP guests Michael Roth
2024-03-20 12:15 ` Daniel P. Berrangé
2024-03-20 12:27 ` Daniel P. Berrangé
2024-03-20 8:39 ` [PATCH v3 33/49] kvm: Make kvm_convert_memory() non-static Michael Roth
2024-03-20 8:39 ` [PATCH v3 34/49] i386/sev: Add KVM_EXIT_VMGEXIT handling for Page State Changes Michael Roth
2024-03-20 8:39 ` [PATCH v3 35/49] i386/sev: Add KVM_EXIT_VMGEXIT handling for Page State Changes (MSR-based) Michael Roth
2024-03-20 8:39 ` [PATCH v3 36/49] i386/sev: Add KVM_EXIT_VMGEXIT handling for Extended Guest Requests Michael Roth
2024-04-22 15:02 ` Markus Armbruster
2024-03-20 8:39 ` [PATCH v3 37/49] i386/sev: Add the SNP launch start context Michael Roth
2024-03-20 9:58 ` Paolo Bonzini
2024-03-20 22:32 ` Michael Roth
2024-03-21 11:55 ` Paolo Bonzini
2024-03-20 8:39 ` [PATCH v3 38/49] i386/sev: Add handling to encrypt/finalize guest launch data Michael Roth
2024-03-20 8:39 ` [PATCH v3 39/49] i386/sev: Set CPU state to protected once SNP guest payload is finalized Michael Roth
2024-03-20 8:39 ` [PATCH v3 40/49] hw/i386/sev: Add function to get SEV metadata from OVMF header Michael Roth
2024-03-20 17:55 ` Isaku Yamahata
2024-03-20 22:35 ` Michael Roth
2024-03-20 8:39 ` [PATCH v3 41/49] i386/sev: Add support for populating OVMF metadata pages Michael Roth
2024-03-20 8:39 ` [PATCH v3 42/49] i386/sev: Add support for SNP CPUID validation Michael Roth
2024-03-20 12:18 ` Daniel P. Berrangé
2024-03-20 8:39 ` [PATCH v3 43/49] qapi, i386: Move kernel-hashes to SevCommonProperties Michael Roth
2024-03-20 12:20 ` Daniel P. Berrangé
2024-04-22 15:03 ` Markus Armbruster
2024-03-20 8:39 ` [PATCH v3 44/49] i386/sev: Extract build_kernel_loader_hashes Michael Roth
2024-03-20 8:39 ` [PATCH v3 45/49] i386/sev: Reorder struct declarations Michael Roth
2024-03-20 8:39 ` [PATCH v3 46/49] i386/sev: Allow measured direct kernel boot on SNP Michael Roth
2024-03-20 8:39 ` [PATCH v3 47/49] hw/i386/sev: Add support to encrypt BIOS when SEV-SNP is enabled Michael Roth
2024-03-20 12:22 ` Daniel P. Berrangé
2024-03-21 13:42 ` Michael Roth via
2024-03-20 8:39 ` [PATCH v3 48/49] hw/i386/sev: Use guest_memfd for legacy ROMs Michael Roth
2024-03-20 18:12 ` Isaku Yamahata
2024-03-28 0:45 ` Xiaoyao Li
2024-04-24 0:08 ` Michael Roth
2024-03-20 8:39 ` [PATCH v3 49/49] hw/i386: Add support for loading BIOS using guest_memfd Michael Roth
2024-03-20 9:59 ` [PATCH RFC v3 00/49] Add AMD Secure Nested Paging (SEV-SNP) support Paolo Bonzini
2024-03-20 17:08 ` Paolo Bonzini
2024-03-20 20:54 ` Xiaoyao Li
2024-03-21 20:26 ` Michael Roth
2024-04-18 11:37 ` Ani Sinha
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