linux-dev/Documentation/virt/kvm/arm, branch master

arm64: Rename the VHE switch to "finalise_el2"

2022-07-01T14:22:51Z

as we are about to perform a lot more in 'mutate_to_vhe' than we currently do, this function really becomes the point where we finalise the basic EL2 configuration. Reflect this into the code by renaming a bunch of things: - HVC_VHE_RESTART -> HVC_FINALISE_EL2 - switch_to_vhe --> finalise_el2 - mutate_to_vhe -> __finalise_el2 No functional changes. Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220630160500.1536744-2-maz@kernel.org Signed-off-by: Will Deacon

Documentation: Fix index.rst after psci.rst renaming

2022-05-04T12:13:55Z

Fix the TOC in index.rst after psci.rst has been renamed to hypercalls.rst. Signed-off-by: Marc Zyngier Reported-by: Stephen Rothwell Link: https://lore.kernel.org/r/20220504205627.18f46380@canb.auug.org.au

Docs: KVM: Add doc for the bitmap firmware registers

2022-05-03T20:30:19Z

Add the documentation for the bitmap firmware registers in hypercalls.rst and api.rst. This includes the details for KVM_REG_ARM_STD_BMAP, KVM_REG_ARM_STD_HYP_BMAP, and KVM_REG_ARM_VENDOR_HYP_BMAP registers. Since the document is growing to carry other hypercall related information, make necessary adjustments to present the document in a generic sense, rather than being PSCI focused. Signed-off-by: Raghavendra Rao Ananta Reviewed-by: Gavin Shan [maz: small scale reformat, move things about, random typo fixes] Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220502233853.1233742-7-rananta@google.com

Docs: KVM: Rename psci.rst to hypercalls.rst

2022-05-03T20:30:19Z

Since the doc also covers general hypercalls' details, rather than just PSCI, and the fact that the bitmap firmware registers' details will be added to this doc, rename the file to a more appropriate name- hypercalls.rst. Signed-off-by: Raghavendra Rao Ananta Reviewed-by: Gavin Shan Reviewed-by: Oliver Upton Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20220502233853.1233742-6-rananta@google.com

KVM: arm64: Fix Function ID typo for PTP_KVM service

2021-04-20T16:19:08Z

Per include/linux/arm-smccc.h, the Function ID of PTP_KVM service is defined as ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID. Fix the typo in documentation to keep the git grep consistent. Signed-off-by: Zenghui Yu Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210417113804.1992-1-yuzenghui@huawei.com

KVM: arm64: Fix table format for PTP documentation

2021-04-08T13:31:24Z

The documentation build legitimately screams about the PTP documentation table being misformated. Fix it by adjusting the table width guides. Reported-by: Stephen Rothwell Signed-off-by: Marc Zyngier

KVM: arm64: Add support for the KVM PTP service

2021-04-07T15:33:20Z

Implement the hypervisor side of the KVM PTP interface. The service offers wall time and cycle count from host to guest. The caller must specify whether they want the host's view of either the virtual or physical counter. Signed-off-by: Jianyong Wu Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20201209060932.212364-7-jianyong.wu@arm.com

KVM: arm64: Document HVC_VHE_RESTART stub hypercall

2021-02-09T13:50:57Z

For completeness, let's document the HVC_VHE_RESTART stub. Signed-off-by: Marc Zyngier Acked-by: David Brazdil Link: https://lore.kernel.org/r/20210208095732.3267263-19-maz@kernel.org Signed-off-by: Will Deacon

KVM: arm64: Some fixes of PV-time interface document

2020-12-03T19:01:01Z

Rename PV_FEATURES to PV_TIME_FEATURES. Signed-off-by: Keqian Zhu Signed-off-by: Marc Zyngier Reviewed-by: Andrew Jones Reviewed-by: Steven Price Link: https://lore.kernel.org/r/20200817110728.12196-2-zhukeqian1@huawei.com

Documentation/kvm/arm: improve description of HVC_SOFT_RESTART

2020-09-11T18:29:10Z

Besides disabling MMU, HVC_SOFT_RESTART also clears I+D bits. These behaviors are what kexec-reboot expects, so describe it more precisely. Signed-off-by: Pingfan Liu Cc: James Morse Cc: Marc Zyngier Cc: Geoff Levand Cc: Catalin Marinas Cc: Will Deacon Cc: Julien Thierry Cc: Suzuki K Poulose Cc: linux-doc@vger.kernel.org Cc: kvmarm@lists.cs.columbia.edu Link: https://lore.kernel.org/r/1598621998-20563-2-git-send-email-kernelfans@gmail.com To: linux-arm-kernel@lists.infradead.org Signed-off-by: Will Deacon