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2025-01-13docs/nitro-enclave: Clarify Enclave and Firecracker relationshipAlexander Graf1-1/+1
The documentation says that Nitro Enclaves are based on Firecracker. AWS has never made that statement. This patch nudges the wording to instead say it "looks like a Firecracker microvm". Signed-off-by: Alexander Graf <graf@amazon.com> Reviewed-by: Dorjoy Chowdhury <dorjoychy111@gmail.com> Message-ID: <20241211222512.95660-1-graf@amazon.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-12-13docs/nitro-enclave: Fix terminal commands formattingDorjoy Chowdhury1-4/+4
Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com> Reviewed-by: Alexander Graf <graf@amazon.com> Message-ID: <20241109122844.24057-1-dorjoychy111@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-10-31docs/nitro-enclave: Documentation for nitro-enclave machine typeDorjoy Chowdhury1-0/+78
Signed-off-by: Dorjoy Chowdhury <dorjoychy111@gmail.com> Reviewed-by: Alexander Graf <graf@amazon.com> Link: https://lore.kernel.org/r/20241008211727.49088-7-dorjoychy111@gmail.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-17docs/system: Add recommendations to Hyper-V enlightenments docVitaly Kuznetsov1-0/+30
While hyperv.rst already has all currently implemented Hyper-V enlightenments documented, it may be unclear what is the recommended set to achieve the best result. Add the corresponding section to the doc. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/20240917160051.2637594-5-vkuznets@redhat.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-17target/i386: Exclude 'hv-syndbg' from 'hv-passthrough'Vitaly Kuznetsov1-4/+9
Windows with Hyper-V role enabled doesn't boot with 'hv-passthrough' when no debugger is configured, this significantly limits the usefulness of the feature as there's no support for subtracting Hyper-V features from CPU flags at this moment (e.g. "-cpu host,hv-passthrough,-hv-syndbg" does not work). While this is also theoretically fixable, 'hv-syndbg' is likely very special and unneeded in the default set. Genuine Hyper-V doesn't seem to enable it either. Introduce 'skip_passthrough' flag to 'kvm_hyperv_properties' and use it as one-off to skip 'hv-syndbg' when enabling features in 'hv-passthrough' mode. Note, "-cpu host,hv-passthrough,hv-syndbg" can still be used if needed. As both 'hv-passthrough' and 'hv-syndbg' are debug features, the change should not have any effect on production environments. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/20240917160051.2637594-3-vkuznets@redhat.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-09-04docs/system/i386: xenpvh: Add a basic descriptionEdgar E. Iglesias1-0/+49
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2024-06-05i386/sev: Introduce 'sev-snp-guest' objectBrijesh Singh1-2/+68
SEV-SNP support relies on a different set of properties/state than the existing 'sev-guest' object. This patch introduces the 'sev-snp-guest' object, which can be used to configure an SEV-SNP guest. For example, a default-configured SEV-SNP guest with no additional information passed in for use with attestation: -object sev-snp-guest,id=sev0 or a fully-specified SEV-SNP guest where all spec-defined binary blobs are passed in as base64-encoded strings: -object sev-snp-guest,id=sev0, \ policy=0x30000, \ init-flags=0, \ id-block=YWFhYWFhYWFhYWFhYWFhCg==, \ id-auth=CxHK/OKLkXGn/KpAC7Wl1FSiisWDbGTEKz..., \ author-key-enabled=on, \ host-data=LNkCWBRC5CcdGXirbNUV1OrsR28s..., \ guest-visible-workarounds=AA==, \ See the QAPI schema updates included in this patch for more usage details. In some cases these blobs may be up to 4096 characters, but this is generally well below the default limit for linux hosts where command-line sizes are defined by the sysconf-configurable ARG_MAX value, which defaults to 2097152 characters for Ubuntu hosts, for example. Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Co-developed-by: Michael Roth <michael.roth@amd.com> Acked-by: Markus Armbruster <armbru@redhat.com> (for QAPI schema) Signed-off-by: Michael Roth <michael.roth@amd.com> Co-developed-by: Pankaj Gupta <pankaj.gupta@amd.com> Signed-off-by: Pankaj Gupta <pankaj.gupta@amd.com> Message-ID: <20240530111643.1091816-8-pankaj.gupta@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-02Fix some typos in documentation (found by codespell)Stefan Weil1-1/+1
Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-02-02doc/sphinx/hxtool.py: add optional label argument to SRST directiveDavid Woodhouse1-1/+2
We can't just embed labels directly into files like qemu-options.hx which are included from multiple top-level rST files, because Sphinx sees the labels as duplicate: https://github.com/sphinx-doc/sphinx/issues/9707 So add an optional argument to the SRST directive which causes a label of the form '.. _DOCNAME-HXFILE-LABEL:' to be emitted, where 'DOCNAME' is the name of the top level rST file, 'HXFILE' is the filename of the .hx file, and 'LABEL' is the text provided within the 'SRST()' directive. Using the DOCNAME of the top-level rST document means that it is unique even when the .hx file is included from two different documents, as is the case for qemu-options.hx Now where the Xen PV documentation refers to the documentation for the -initrd command line option, it can emit a link directly to it as '<system/invocation-qemu-options-initrd>'. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240130190348.682912-1-dwmw2@infradead.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-11-07docs: update Xen-on-KVM documentationDavid Woodhouse1-28/+79
Add notes about console and network support, and how to launch PV guests. Clean up the disk configuration examples now that that's simpler, and remove the comment about IDE unplug on q35/AHCI now that it's fixed. Update the -initrd option documentation to explain how to quote commas in module command lines, and reference it when documenting PV guests. Also update stale avocado test filename in MAINTAINERS. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-10-11Update AMD memory encryption document links.Jianlin Li1-3/+3
The previous links for the white paper and programmer's manual are no longer available. Replace them with the new ones. Signed-off-by: Jianlin Li <ljianlin99@gmail.com> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-03-07docs: Update Xen-on-KVM documentation for PV disk supportDavid Woodhouse1-7/+23
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-03-01i386/xen: Document Xen HVM emulationDavid Woodhouse1-0/+76
Signed-off-by: David Woodhouse <dwmw2@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2022-05-25i386: docs: Convert hyperv.txt to rSTVitaly Kuznetsov1-0/+288
rSTify docs/hyperv.txt and link it from docs/system/target-i386.rst. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20220525115949.1294004-7-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-05docs/system/i386: Add measurement calculation details to amd-memory-encryptionDov Murik1-4/+50
Add a section explaining how the Guest Owner should calculate the expected guest launch measurement for SEV and SEV-ES. Also update the name and links to the SEV API Spec document. Signed-off-by: Dov Murik <dovmurik@linux.ibm.com> Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20220217110059.2320497-1-dovmurik@linux.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-02-09docs: rstfy confidential guest documentationCornelia Huck1-0/+160
Also rstfy the documentation for AMD SEV, and link it. The documentation for PEF had been merged into the pseries doc, fix the reference. Signed-off-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20220204161251.241877-1-cohuck@redhat.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2021-12-10doc: Add the SGX numa descriptionYang Zhong1-4/+27
Add the SGX numa reference command and how to check if SGX numa is support or not with multiple EPC sections. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <20211101162009.62161-5-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-19docs: Spell QEMU all capsPhilippe Mathieu-Daudé1-13/+13
Replace Qemu -> QEMU. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20211118143401.4101497-1-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-08docs: (further) remove non-reference uses of single backticksJohn Snow1-3/+3
The series rotted already. Here's the new changes. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com> [ extra backticks fixes ] Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20211004215238.1523082-3-jsnow@redhat.com>
2021-10-05i386: docs: Briefly describe KVM PV featuresVitaly Kuznetsov1-0/+100
KVM PV features don't seem to be documented anywhere, in particular, the fact that some of the features are enabled by default and some are not can only be figured out from the code. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20211004140445.624875-1-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-30docs/system: Add SGX documentation to the system manualSean Christopherson1-0/+165
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <20210719112136.57018-34-yang.zhong@intel.com> [Convert to reStructuredText, and adopt the standard === --- ~~~ headings suggested for example by Linux. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-13docs/system: move x86 CPU configuration to a separate documentPaolo Bonzini1-0/+1
Currently, cpu-models-x86.rst.inc is included in target-i386.rst directly. To make the toctree more homogeneous when adding more documentation, include it through a first-class .rst file. Together with the previous changes to the man page skeletons, this also frees "===" for the headings, so that cpu-models-x86.rst.inc need not assume anything about the headings used by target-i386.rst. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-11-23docs: Move microvm.rst into the system manualPeter Maydell1-0/+128
Now that target-i386.rst has a place to list documentation of machines other than the 'pc' machine, we have a place we can move the microvm documentation to. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2020-11-23docs: Split out 'pc' machine model docs into their own filePeter Maydell1-0/+7
Currently target-i386.rst includes the documentation of the 'pc' machine model inline. Split it out into its own file, in a similar way to target-i386.rst; this gives us a place to put documentation of other i386 machine models, such as 'microvm'. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
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