| a788260b | 17-Oct-2023 |
Paolo Bonzini <pbonzini@redhat.com> |
kvm: require KVM_IRQFD for kernel irqchip
KVM_IRQFD was introduced in Linux 2.6.32, and since then it has always been
available on architectures that support an in-kernel interrupt controller.
We ca
kvm: require KVM_IRQFD for kernel irqchip
KVM_IRQFD was introduced in Linux 2.6.32, and since then it has always been
available on architectures that support an in-kernel interrupt controller.
We can require it unconditionally.
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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| 6c9dcd87 | 18-Oct-2023 |
Philippe Mathieu-Daudé <philmd@linaro.org> |
hw/intc/spapr_xive: Do not use SysBus API to map local MMIO region
There is no point in exposing an internal MMIO region via
SysBus and directly mapping it in the very same device.
Just map it with
hw/intc/spapr_xive: Do not use SysBus API to map local MMIO region
There is no point in exposing an internal MMIO region via
SysBus and directly mapping it in the very same device.
Just map it without using the SysBus API.
Transformation done using the following coccinelle script:
@@
expression sbdev;
expression index;
expression addr;
expression subregion;
@@
- sysbus_init_mmio(sbdev, subregion);
... when != sbdev
- sysbus_mmio_map(sbdev, index, addr);
+ memory_region_add_subregion(get_system_memory(), addr, subregion);
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20231019131647.19690-8-philmd@linaro.org>
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| e061eed8 | 18-Oct-2023 |
Philippe Mathieu-Daudé <philmd@linaro.org> |
hw/intc/spapr_xive: Move sysbus_init_mmio() calls around
In order to make the next commit trivial, move sysbus_init_mmio()
calls just before the corresponding sysbus_mmio_map() calls.
Signed-off-by
hw/intc/spapr_xive: Move sysbus_init_mmio() calls around
In order to make the next commit trivial, move sysbus_init_mmio()
calls just before the corresponding sysbus_mmio_map() calls.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20231019131647.19690-7-philmd@linaro.org>
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| b8156640 | 30-Aug-2023 |
Daniel Henrique Barboza <dbarboza@ventanamicro.com> |
hw/intc/riscv_aplic.c fix non-KVM --enable-debug build
Commit 6df0b37e2ab breaks a --enable-debug build in a non-KVM
environment with the following error:
/usr/bin/ld: libqemu-riscv64-softmmu.fa.p/
hw/intc/riscv_aplic.c fix non-KVM --enable-debug build
Commit 6df0b37e2ab breaks a --enable-debug build in a non-KVM
environment with the following error:
/usr/bin/ld: libqemu-riscv64-softmmu.fa.p/hw_intc_riscv_aplic.c.o: in function `riscv_kvm_aplic_request':
./qemu/build/../hw/intc/riscv_aplic.c:486: undefined reference to `kvm_set_irq'
collect2: error: ld returned 1 exit status
This happens because the debug build will poke into the
'if (is_kvm_aia(aplic->msimode))' block and fail to find a reference to
the KVM only function riscv_kvm_aplic_request().
There are multiple solutions to fix this. We'll go with the same
solution from the previous patch, i.e. add a kvm_enabled() conditional
to filter out the block. But there's a catch: riscv_kvm_aplic_request()
is a local function that would end up being used if the compiler crops
the block, and this won't work. Quoting Richard Henderson's explanation
in [1]:
"(...) the compiler won't eliminate entire unused functions with -O0"
We'll solve it by moving riscv_kvm_aplic_request() to kvm.c and add its
declaration in kvm_riscv.h, where all other KVM specific public
functions are already declared. Other archs handles KVM specific code in
this manner and we expect to do the same from now on.
[1] https://lore.kernel.org/qemu-riscv/d2f1ad02-eb03-138f-9d08-db676deeed05@linaro.org/
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20230830133503.711138-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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| 95a97b3f | 27-Jul-2023 |
Yong-Xuan Wang <yongxuan.wang@sifive.com> |
target/riscv: update APLIC and IMSIC to support KVM AIA
KVM AIA can't emulate APLIC only. When "aia=aplic" parameter is passed,
APLIC devices is emulated by QEMU. For "aia=aplic-imsic", remove the
m
target/riscv: update APLIC and IMSIC to support KVM AIA
KVM AIA can't emulate APLIC only. When "aia=aplic" parameter is passed,
APLIC devices is emulated by QEMU. For "aia=aplic-imsic", remove the
mmio operations of APLIC when using KVM AIA and send wired interrupt
signal via KVM_IRQ_LINE API.
After KVM AIA enabled, MSI messages are delivered by KVM_SIGNAL_MSI API
when the IMSICs receive mmio write requests.
Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20230727102439.22554-5-yongxuan.wang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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| 9382a9ea | 28-Jul-2023 |
Jason Chien <jason.chien@sifive.com> |
hw/intc: Make rtc variable names consistent
The variables whose values are given by cpu_riscv_read_rtc() should be named
"rtc". The variables whose value are given by cpu_riscv_read_rtc_raw()
should
hw/intc: Make rtc variable names consistent
The variables whose values are given by cpu_riscv_read_rtc() should be named
"rtc". The variables whose value are given by cpu_riscv_read_rtc_raw()
should be named "rtc_r".
Signed-off-by: Jason Chien <jason.chien@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230728082502.26439-2-jason.chien@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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| b68147b7 | 29-Aug-2023 |
Cédric Le Goater <clg@kaod.org> |
ppc/xive: Add support for the PC MMIOs
The XIVE interrupt contoller maintains various fields on interrupt
targets in a structure called NVT. Each unit has a NVT cache, backed
by RAM.
When the NVT s
ppc/xive: Add support for the PC MMIOs
The XIVE interrupt contoller maintains various fields on interrupt
targets in a structure called NVT. Each unit has a NVT cache, backed
by RAM.
When the NVT structure is not local (in RAM) to the chip, the XIVE
interrupt controller forwards the memory operation to the owning chip
using the PC MMIO region configured for this purpose. QEMU does not
need to be so precise since software shouldn't perform any of these
operations. The model implementation is simplified to return the RAM
address of the NVT structure which is then used by pnv_xive_vst_write
or read to perform the operation in RAM.
Remove the last use of pnv_xive_get_remote().
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
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