[PATCH v3 23/28] arm64/sve: KVM: Treat guest SVE use as undefined... | linux-arm-kernel

[PATCH v3 00/28] ARM Scalable Vector Extension (SVE) · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 01/28] regset: Add support for dynamically sized regsets · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
Re: [PATCH v3 01/28] regset: Add support for dynamically sized regsets · Catalin Marinas <catalin.marinas@arm.com> · 2017-10-11
Re: [PATCH v3 01/28] regset: Add support for dynamically sized regsets · Dave Martin <Dave.Martin@arm.com> · 2017-10-11
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Marc Zyngier <hidden> · 2017-10-11
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Christoffer Dall <hidden> · 2017-10-17
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Marc Zyngier <hidden> · 2017-10-17
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Christoffer Dall <hidden> · 2017-10-18
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Dave.Martin@arm.com (Dave Martin) · 2017-10-18
[PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests · Christoffer Dall <hidden> · 2017-10-18
[PATCH v3 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON · Dave.Martin@arm.com (Dave Martin) · 2017-10-11
[PATCH v3 04/28] arm64: Port deprecated instruction emulation to new sysctl interface · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 04/28] arm64: Port deprecated instruction emulation to new sysctl interface · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 05/28] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag() · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 05/28] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag() · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 06/28] arm64/sve: System register and exception syndrome definitions · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 06/28] arm64/sve: System register and exception syndrome definitions · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 07/28] arm64/sve: Low-level SVE architectural state manipulation functions · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 07/28] arm64/sve: Low-level SVE architectural state manipulation functions · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 07/28] arm64/sve: Low-level SVE architectural state manipulation functions · Dave.Martin@arm.com (Dave Martin) · 2017-10-11
[PATCH v3 08/28] arm64/sve: Kconfig update and conditional compilation support · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 08/28] arm64/sve: Kconfig update and conditional compilation support · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 09/28] arm64/sve: Signal frame and context structure definition · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 09/28] arm64/sve: Signal frame and context structure definition · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 10/28] arm64/sve: Low-level CPU setup · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 10/28] arm64/sve: Low-level CPU setup · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 11/28] arm64/sve: Core task context handling · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 11/28] arm64/sve: Core task context handling · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 11/28] arm64/sve: Core task context handling · Dave.Martin@arm.com (Dave Martin) · 2017-10-12
[PATCH v3 11/28] arm64/sve: Core task context handling · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-13
[PATCH v3 11/28] arm64/sve: Core task context handling · Dave.Martin@arm.com (Dave Martin) · 2017-10-13
[PATCH v3 12/28] arm64/sve: Support vector length resetting for new processes · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 12/28] arm64/sve: Support vector length resetting for new processes · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 13/28] arm64/sve: Signal handling support · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 13/28] arm64/sve: Signal handling support · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 13/28] arm64/sve: Signal handling support · Dave.Martin@arm.com (Dave Martin) · 2017-10-12
[PATCH v3 13/28] arm64/sve: Signal handling support · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-13
[PATCH v3 13/28] arm64/sve: Signal handling support · Dave.Martin@arm.com (Dave Martin) · 2017-10-13
[PATCH v3 14/28] arm64/sve: Backend logic for setting the vector length · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 14/28] arm64/sve: Backend logic for setting the vector length · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 15/28] arm64: cpufeature: Move sys_caps_initialised declarations · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 15/28] arm64: cpufeature: Move sys_caps_initialised declarations · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-11
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-10-12
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Dave.Martin@arm.com (Dave Martin) · 2017-10-16
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-10-16
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Dave.Martin@arm.com (Dave Martin) · 2017-10-16
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-10-16
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Dave.Martin@arm.com (Dave Martin) · 2017-10-16
[PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-10-16
[PATCH v3 17/28] arm64/sve: Preserve SVE registers around kernel-mode NEON use · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 17/28] arm64/sve: Preserve SVE registers around kernel-mode NEON use · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 18/28] arm64/sve: Preserve SVE registers around EFI runtime service calls · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 18/28] arm64/sve: Preserve SVE registers around EFI runtime service calls · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 19/28] arm64/sve: ptrace and ELF coredump support · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 19/28] arm64/sve: ptrace and ELF coredump support · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 19/28] arm64/sve: ptrace and ELF coredump support · Dave.Martin@arm.com (Dave Martin) · 2017-10-13
[PATCH v3 19/28] arm64/sve: ptrace and ELF coredump support · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-18
[PATCH v3 19/28] arm64/sve: ptrace and ELF coredump support · Dave.Martin@arm.com (Dave Martin) · 2017-10-18
[PATCH v3 20/28] arm64/sve: Add prctl controls for userspace vector length management · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 20/28] arm64/sve: Add prctl controls for userspace vector length management · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 21/28] arm64/sve: Add sysctl to set the default vector length for new processes · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 21/28] arm64/sve: Add sysctl to set the default vector length for new processes · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Marc Zyngier <hidden> · 2017-10-11
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-10-12
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Marc Zyngier <hidden> · 2017-10-12
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-10-13
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Marc Zyngier <hidden> · 2017-10-13
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-10-13
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Christoffer Dall <hidden> · 2017-10-17
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-10-17
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Christoffer Dall <hidden> · 2017-10-18
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Dave.Martin@arm.com (Dave Martin) · 2017-10-18
[PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE · Christoffer Dall <hidden> · 2017-10-18
[PATCH v3 23/28] arm64/sve: KVM: Treat guest SVE use as undefined instruction execution · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 23/28] arm64/sve: KVM: Treat guest SVE use as undefined instruction execution · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 23/28] arm64/sve: KVM: Treat guest SVE use as undefined instruction execution · Christoffer Dall <hidden> · 2017-10-17
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Marc Zyngier <hidden> · 2017-10-11
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Christoffer Dall <hidden> · 2017-10-17
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Dave.Martin@arm.com (Dave Martin) · 2017-10-17
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Marc Zyngier <hidden> · 2017-10-17
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Dave.Martin@arm.com (Dave Martin) · 2017-10-17
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Christoffer Dall <hidden> · 2017-10-18
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Dave.Martin@arm.com (Dave Martin) · 2017-10-18
[PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests · Christoffer Dall <hidden> · 2017-10-18
[PATCH v3 25/28] arm64/sve: Detect SVE and activate runtime support · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 25/28] arm64/sve: Detect SVE and activate runtime support · Suzuki.Poulose@arm.com (Suzuki K Poulose) · 2017-10-11
[PATCH v3 25/28] arm64/sve: Detect SVE and activate runtime support · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-12
[PATCH v3 26/28] arm64/sve: Add documentation · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[PATCH v3 26/28] arm64/sve: Add documentation · Szabolcs Nagy <hidden> · 2017-10-11
[PATCH v3 26/28] arm64/sve: Add documentation · Dave.Martin@arm.com (Dave Martin) · 2017-10-11
[PATCH v3 26/28] arm64/sve: Add documentation · Szabolcs Nagy <hidden> · 2017-10-11
[PATCH v3 26/28] arm64/sve: Add documentation · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-13
[PATCH v3 26/28] arm64/sve: Add documentation · Dave.Martin@arm.com (Dave Martin) · 2017-10-13
[PATCH v3 26/28] arm64/sve: Add documentation · catalin.marinas@arm.com (Catalin Marinas) · 2017-10-18
[PATCH v3 26/28] arm64/sve: Add documentation · Dave.Martin@arm.com (Dave Martin) · 2017-10-13
[RFC PATCH v3 27/28] arm64: signal: Report signal frame size to userspace via auxv · Dave.Martin@arm.com (Dave Martin) · 2017-10-10
[RFC PATCH v3 27/28] arm64: signal: Report signal frame size to userspace via auxv · Szabolcs Nagy <hidden> · 2017-10-11
[RFC PATCH v3 27/28] arm64: signal: Report signal frame size to userspace via auxv · Dave.Martin@arm.com (Dave P Martin) · 2017-10-11
[RFC PATCH v3 28/28] arm64/sve: signal: Include SVE when computing AT_MINSIGSTKSZ · Dave.Martin@arm.com (Dave Martin) · 2017-10-10

STALE3168d REVIEWED: 3 (3M)

[PATCH v3 23/28] arm64/sve: KVM: Treat guest SVE use as undefined instruction execution

From: catalin.marinas@arm.com (Catalin Marinas)
Date: 2017-10-12 17:13:16
Also in: kvmarm, linux-arch

On Tue, Oct 10, 2017 at 07:38:40PM +0100, Dave P Martin wrote:

When trapping forbidden attempts by a guest to use SVE, we want the
guest to see a trap consistent with SVE not being implemented.

This patch injects an undefined instruction exception into the
guest in response to such an exception.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Benn?e <redacted>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>

`h`	back out one level
`j`	next message in thread
`k`	previous message in thread
`l`	drill in
`Esc`	close help / fold thread tree
`?`	toggle this help