Branch: refs/heads/wip/arm64-zero-exits
Home: https://github.com/siemens/jailhouse
Commit: 93edbb6275fa649b061b09ba9c292a0cfde18d16
https://github.com/siemens/jailhouse/commit/93edbb6275fa649b061b09ba9c292a0cfde18d16
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-08-29 (Sat, 29 Aug 2020)
Changed paths:
M hypervisor/arch/arm-common/gic-v2.c
Log Message:
-----------
arm-common: Reorder gicv2_cpu_init
This pulls CPU ID validation and gicv2_target_cpu_map setup to the
beginning of gicv2_cpu_init so that we can fail early if needed, before
any changes to the hardware configuration are made. This will also help
when introducing SDEI-based management interrupts.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 4c3c2f91cef0bcda2f877028a039392ebcb8a931
https://github.com/siemens/jailhouse/commit/4c3c2f91cef0bcda2f877028a039392ebcb8a931
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-08-29 (Sat, 29 Aug 2020)
Changed paths:
M hypervisor/arch/arm-common/smccc.c
M hypervisor/arch/arm/include/asm/smc.h
M hypervisor/arch/arm64/include/asm/smc.h
Log Message:
-----------
arm/arm64: Expand return type of smc helpers to long
This allows to evaluate all 64 bits on arm64. Will be needed for SDEI.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 888df7aab8e3af1882d8417525aff5032b329662
https://github.com/siemens/jailhouse/commit/888df7aab8e3af1882d8417525aff5032b329662
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-08-29 (Sat, 29 Aug 2020)
Changed paths:
M hypervisor/arch/arm/include/asm/smc.h
M hypervisor/arch/arm64/include/asm/smc.h
Log Message:
-----------
arm/arm64: Add further smc helpers
Will be used for SDEI. Actually not on ARM, but we add the smc_arg2 to
please the build and avoid surprises once it is used for real.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 5c2856efa9f37bfa9f266bec6aad543fe07f8478
https://github.com/siemens/jailhouse/commit/5c2856efa9f37bfa9f266bec6aad543fe07f8478
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-08-29 (Sat, 29 Aug 2020)
Changed paths:
M hypervisor/arch/arm64/setup.c
Log Message:
-----------
arm64: Reorder arch_cpu_init
This will allow to modify the hcr value based on the result of
arm_cpu_init when SDEI is in play.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 80a69b1ab40cf8849e00ae9604d880c4b5903efe
https://github.com/siemens/jailhouse/commit/80a69b1ab40cf8849e00ae9604d880c4b5903efe
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-09-02 (Wed, 02 Sep 2020)
Changed paths:
M hypervisor/arch/arm-common/control.c
M hypervisor/arch/arm-common/include/asm/smccc.h
M hypervisor/arch/arm-common/irqchip.c
M hypervisor/arch/arm-common/smccc.c
Log Message:
-----------
arm-common: Add SDEI-based management event injection support
This is the first building block for switching to management interrupts
using the Software Delegated Exception Interface (SDEI) which will allow
to pass the GICC to the guest.
In this step, the feature flag is introduced - but not yet set -, and
arch_send_event is augmented with sending the event via
SDEI_EVENT_SIGNAL, software event 0.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 60a12f2d2539c78131722d3f91aeb940f76a4555
https://github.com/siemens/jailhouse/commit/60a12f2d2539c78131722d3f91aeb940f76a4555
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-09-04 (Fri, 04 Sep 2020)
Changed paths:
M hypervisor/arch/arm-common/gic-v2.c
M hypervisor/arch/arm-common/gic-v3.c
M hypervisor/arch/arm-common/irqchip.c
Log Message:
-----------
arm-common: Pass through GIC CPU interface in SDEI mode
When SDEI is used for management interrupts, we can give the gicc
completely to the cell. This requires to skip gic-v2 and gic-v3 per-cpu
initializations and to map the physical gicc-v2 into the cell or to not
enable ICH_HCR_EN in case of gic-v3. Furthermore, injected interrupts
now have to be sent as physical SGI to the target, rather than being
queued for the virtual interface.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 5534d769abb42e33a3e1d4e758c350e6935ec083
https://github.com/siemens/jailhouse/commit/5534d769abb42e33a3e1d4e758c350e6935ec083
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-09-04 (Fri, 04 Sep 2020)
Changed paths:
M hypervisor/arch/arm-common/include/asm/smccc.h
M hypervisor/arch/arm64/asm-defines.c
M hypervisor/arch/arm64/entry.S
M hypervisor/arch/arm64/include/asm/entry.h
M hypervisor/arch/arm64/include/asm/percpu_fields.h
M hypervisor/arch/arm64/setup.c
M hypervisor/arch/arm64/traps.c
Log Message:
-----------
arm64: Add SDEI-based management interrupt handling
This brings the arm64-specific bits to handle management interrupts sent
via SDEI.
The pattern for processing them is derived from NMI-based injection on
x86: The SDEI event can come asynchronously at any time while in EL2,
EL1 or EL0. To avoid having to synchronize with running EL2, translate
it into a trap that is triggered on EL1/0 reentry. We use an invalid
VTCR_EL2 value for this and set the per-cpu sdei_event flag. When EL2
finds this flag set on handling the trap, it kicks off SGI_EVENT
handling and restores VTCR_EL2.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 884a9103eaa3f945705b0d1ad9e1a07fef276dcb
https://github.com/siemens/jailhouse/commit/884a9103eaa3f945705b0d1ad9e1a07fef276dcb
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-09-04 (Fri, 04 Sep 2020)
Changed paths:
M hypervisor/arch/arm64/setup.c
Log Message:
-----------
arm64: Do not trap interrupts when using SDEI
They can (and must) be delivered directly to the cell in that mode. GIC
CPU interfaces are already passed through.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Commit: 98061469d04eacbb764511d3424ba7f866247347
https://github.com/siemens/jailhouse/commit/98061469d04eacbb764511d3424ba7f866247347
Author: Jan Kiszka <jan.kis...@siemens.com>
Date: 2020-09-04 (Fri, 04 Sep 2020)
Changed paths:
M hypervisor/arch/arm-common/include/asm/smccc.h
M hypervisor/arch/arm-common/setup.c
M hypervisor/arch/arm-common/smccc.c
Log Message:
-----------
arm-common: Detect availability of SDEI on arm64
Enhance smccc_discover() to detect if SDEI is available on all CPUs on
arm64. Fail on inconsistent availability, now returning and error code.
SDEI is practically only available on arm64 and also only implemented
there in Jailhouse. So skip the probing on 32-bit.
This activates the previously introduced SDEI paths.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Compare:
https://github.com/siemens/jailhouse/compare/e0ef829c8589...98061469d04e
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