From: Will Deacon <will@kernel.org>
To: kvmarm@lists.cs.columbia.edu
Cc: Will Deacon <will@kernel.org>, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] Plumb PSCI SYSTEM_RESET2 call for guests
Date: Thu, 17 Feb 2022 18:39:58 +0000 [thread overview]
Message-ID: <20220217184001.11753-1-will@kernel.org> (raw)
Hi folks,
This small series exposes the PSCI SYSTEM_RESET2 call to guests, which
allows the propagation of a "reset_type" and a "cookie" back to the VMM.
Although Linux guests only ever pass 0 for the type ("SYSTEM_WARM_RESET"),
the vendor-defined range can be used by a bootloader to provide additional
information about the reset, such as an error code.
Cheers,
Will
--->8
Will Deacon (3):
KVM: arm64: Bump guest PSCI version to 1.1
KVM: arm64: Expose PSCI SYSTEM_RESET2 call to the guest
KVM: arm64: Indicate SYSTEM_RESET2 in kvm_run::system_event flags
field
Documentation/virt/kvm/api.rst | 5 +++
arch/arm64/include/uapi/asm/kvm.h | 7 ++++
arch/arm64/kvm/psci.c | 58 +++++++++++++++++++++++++------
include/kvm/arm_psci.h | 3 +-
include/uapi/linux/psci.h | 4 +++
5 files changed, 66 insertions(+), 11 deletions(-)
--
2.35.1.265.g69c8d7142f-goog
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next reply other threads:[~2022-02-17 18:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-17 18:39 Will Deacon [this message]
2022-02-17 18:39 ` [PATCH 1/3] KVM: arm64: Bump guest PSCI version to 1.1 Will Deacon
2022-02-17 18:40 ` [PATCH 2/3] KVM: arm64: Expose PSCI SYSTEM_RESET2 call to the guest Will Deacon
2022-02-17 18:40 ` [PATCH 3/3] KVM: arm64: Indicate SYSTEM_RESET2 in kvm_run::system_event flags field Will Deacon
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