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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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kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org>
To: kvmarm@lists.cs.columbia.edu
Cc: linux-arm-kernel@lists.infradead.org, Will Deacon <will@kernel.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


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2022-02-17 18:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-17 18:39 Will Deacon [this message]
2022-02-17 18:39 ` [PATCH 0/3] Plumb PSCI SYSTEM_RESET2 call for guests Will Deacon
2022-02-17 18:39 ` [PATCH 1/3] KVM: arm64: Bump guest PSCI version to 1.1 Will Deacon
2022-02-17 18:39   ` 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   ` Will Deacon
2022-02-17 18:40 ` [PATCH 3/3] KVM: arm64: Indicate SYSTEM_RESET2 in kvm_run::system_event flags field Will Deacon
2022-02-17 18:40   ` Will Deacon

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