Merge tag 'patchew/20200219160953.13771-1-imammedo@redhat.com' of https://github.com/patchew-project/qemu into HEAD

This series removes ad hoc RAM allocation API (memory_region_allocate_system_memor

Merge tag 'patchew/20200219160953.13771-1-imammedo@redhat.com' of https://github.com/patchew-project/qemu into HEAD

This series removes ad hoc RAM allocation API (memory_region_allocate_system_memory)
and consolidates it around hostmem backend. It allows to

* resolve conflicts between global -mem-prealloc and hostmem's "policy" option,
fixing premature allocation before binding policy is applied

* simplify complicated memory allocation routines which had to deal with 2 ways
to allocate RAM.

* reuse hostmem backends of a choice for main RAM without adding extra CLI
options to duplicate hostmem features. A recent case was -mem-shared, to
enable vhost-user on targets that don't support hostmem backends [1] (ex: s390)

* move RAM allocation from individual boards into generic machine code and
provide them with prepared MemoryRegion.

* clean up deprecated NUMA features which were tied to the old API (see patches)
- "numa: remove deprecated -mem-path fallback to anonymous RAM"
- (POSTPONED, waiting on libvirt side) "forbid '-numa node,mem' for 5.0 and newer machine types"
- (POSTPONED) "numa: remove deprecated implicit RAM distribution between nodes"

Introduce a new machine.memory-backend property and wrapper code that aliases
global -mem-path and -mem-alloc into automatically created hostmem backend
properties (provided memory-backend was not set explicitly given by user).
A bulk of trivial patches then follow to incrementally convert individual
boards to using machine.memory-backend provided MemoryRegion.

Board conversion typically involves:

* providing MachineClass::default_ram_size and MachineClass::default_ram_id
so generic code could create default backend if user didn't explicitly provide
memory-backend or -m options

* dropping memory_region_allocate_system_memory() call

* using convenience MachineState::ram MemoryRegion, which points to MemoryRegion
allocated by ram-memdev

On top of that for some boards:

* missing ram_size checks are added (typically it were boards with fixed ram size)

* ram_size fixups are replaced by checks and hard errors, forcing user to
provide correct "-m" values instead of ignoring it and continuing running.

After all boards are converted, the old API is removed and memory allocation
routines are cleaned up.

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x86/microvm: use memdev for RAM

memory_region_allocate_system_memory() API is going away, so
replace it with memdev allocated MemoryRegion. The later is
initialized by generic code, so board only ne

x86/microvm: use memdev for RAM

memory_region_allocate_system_memory() API is going away, so
replace it with memdev allocated MemoryRegion. The later is
initialized by generic code, so board only needs to opt in
to memdev scheme by providing
MachineClass::default_ram_id
and using MachineState::ram instead of manually initializing
RAM memory region.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200219160953.13771-43-imammedo@redhat.com>

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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200130' into staging

target-arm queue:
* hw/core/or-irq: Fix incorrect assert forbidding num-lines == MAX_OR_LINES
* target/ar

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200130' into staging

target-arm queue:
* hw/core/or-irq: Fix incorrect assert forbidding num-lines == MAX_OR_LINES
* target/arm/arm-semi: Don't let the guest close stdin/stdout/stderr
* aspeed: some minor bugfixes
* aspeed: add eMMC controller model for AST2600 SoC
* hw/arm/raspi: Remove obsolete use of -smp to set the soc 'enabled-cpus'
* New 3-phase reset API for device models
* hw/intc/arm_gicv3_kvm: Stop wrongly programming GICR_PENDBASER.PTZ bit
* Arm KVM: stop/restart the guest counter when the VM is stopped and started

# gpg: Signature made Thu 30 Jan 2020 16:14:45 GMT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20200130: (26 commits)
target/arm/cpu: Add the kvm-no-adjvtime CPU property
target/arm/kvm: Implement virtual time adjustment
tests/arm-cpu-features: Check feature default values
target/arm/kvm64: kvm64 cpus have timer registers
hw/arm/virt: Add missing 5.0 options call to 4.2 options
target/arm/kvm: trivial: Clean up header documentation
hw/intc/arm_gicv3_kvm: Stop wrongly programming GICR_PENDBASER.PTZ bit
hw/s390x/ipl: replace deprecated qdev_reset_all registration
vl: replace deprecated qbus_reset_all registration
docs/devel/reset.rst: add doc about Resettable interface
hw/core: deprecate old reset functions and introduce new ones
hw/core/qdev: update hotplug reset regarding resettable
hw/core/qdev: handle parent bus change regarding resettable
hw/core/resettable: add support for changing parent
hw/core: add Resettable support to BusClass and DeviceClass
hw/core: create Resettable QOM interface
hw/core/qdev: add trace events to help with resettable transition
add device_legacy_reset function to prepare for reset api change
hw/arm/raspi: Remove obsolete use of -smp to set the soc 'enabled-cpus'
misc/pca9552: Add qom set and get
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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add device_legacy_reset function to prepare for reset api change

Provide a temporary device_legacy_reset function doing what
device_reset does to prepare for the transition with Resettable
API.

All

add device_legacy_reset function to prepare for reset api change

Provide a temporary device_legacy_reset function doing what
device_reset does to prepare for the transition with Resettable
API.

All occurrence of device_reset in the code tree are also replaced
by device_legacy_reset.

The new resettable API has different prototype and semantics
(resetting child buses as well as the specified device). Subsequent
commits will make the changeover for each call site individually; once
that is complete device_legacy_reset() will be removed.

Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200123132823.1117486-2-damien.hedde@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* More uses of RCU_READ_LOCK_GUARD (Dave, myself)
* QOM doc improvments (Greg)
* Cleanups from the Meson conversion (Mar

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* More uses of RCU_READ_LOCK_GUARD (Dave, myself)
* QOM doc improvments (Greg)
* Cleanups from the Meson conversion (Marc-André)
* Support for multiple -accel options (myself)
* Many x86 machine cleanup (Philippe, myself)
* tests/migration-test cleanup (Juan)
* PC machine removal and next round of deprecation (Thomas)
* kernel-doc integration (Peter, myself)

# gpg: Signature made Wed 18 Dec 2019 01:35:02 GMT
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (87 commits)
vga: cleanup mapping of VRAM for non-PCI VGA
hw/display: Remove "rombar" hack from vga-pci and vmware_vga
hw/pci: Remove the "command_serr_enable" property
hw/audio: Remove the "use_broken_id" hack from the AC97 device
hw/i386: Remove the deprecated machines 0.12 up to 0.15
hw/pci-host: Add Kconfig entry to select the IGD Passthrough Host Bridge
hw/pci-host/i440fx: Extract the IGD passthrough host bridge device
hw/pci-host/i440fx: Use definitions instead of magic values
hw/pci-host/i440fx: Use size_t to iterate over ARRAY_SIZE()
hw/pci-host/i440fx: Extract PCII440FXState to "hw/pci-host/i440fx.h"
hw/pci-host/i440fx: Correct the header description
Fix some comment spelling errors.
target/i386: remove unused pci-assign codes
WHPX: refactor load library
migration: check length directly to make sure the range is aligned
memory: include MemoryListener documentation and some missing function parameters
docs: add memory API reference
memory.h: Silence kernel-doc complaints
docs: Create bitops.rst as example of kernel-docs
bitops.h: Silence kernel-doc complaints
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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x86: move more x86-generic functions out of PC files

These are needed by microvm too, so move them outside of PC-specific files.
With this patch, microvm.c need not include pc.h anymore.

Signed-off

x86: move more x86-generic functions out of PC files

These are needed by microvm too, so move them outside of PC-specific files.
With this patch, microvm.c need not include pc.h anymore.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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hw: replace hw/i386/pc.h with a header just for the i8259

Remove the need to include i386/pc.h to get to the i8259 functions.
This is enough to remove the inclusion of hw/i386/pc.h from all non-x86

hw: replace hw/i386/pc.h with a header just for the i8259

Remove the need to include i386/pc.h to get to the i8259 functions.
This is enough to remove the inclusion of hw/i386/pc.h from all non-x86
files.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* microvm docs and fixes (Sergio, Liam)
* New processor features for Intel errata (myself, Pawan)
* Kconfig fixes (mysel

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* microvm docs and fixes (Sergio, Liam)
* New processor features for Intel errata (myself, Pawan)
* Kconfig fixes (myself, Thomas)
* Revert mc146818rtc change (myself)
* Deprecate scsi-disk (myself)
* RTC fix (myself, Marcelo)

# gpg: Signature made Tue 19 Nov 2019 09:03:49 GMT
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
mc146818rtc: fix timer interrupt reinjection again
Revert "mc146818rtc: fix timer interrupt reinjection"
scsi: deprecate scsi-disk
hw/i386: Move save_tsc_khz from PCMachineClass to X86MachineClass
docs/microvm.rst: add instructions for shutting down the guest
docs/microvm.rst: fix alignment in "Limitations"
vfio: vfio-pci requires EDID
hw/i386: Fix compiler warning when CONFIG_IDE_ISA is disabled
target/i386: Export TAA_NO bit to guests
target/i386: add PSCHANGE_NO bit for the ARCH_CAPABILITIES MSR
microvm: fix memory leak in microvm_fix_kernel_cmdline
scripts: Detect git worktrees for get_maintainer.pl --git

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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microvm: fix memory leak in microvm_fix_kernel_cmdline

In microvm_fix_kernel_cmdline(), fw_cfg_modify_string() is duplicating
cmdline instead of taking ownership of it. Free it afterwards to avoid
l

microvm: fix memory leak in microvm_fix_kernel_cmdline

In microvm_fix_kernel_cmdline(), fw_cfg_modify_string() is duplicating
cmdline instead of taking ownership of it. Free it afterwards to avoid
leaking it.

Reported-by: Coverity (CID 1407218)
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20191112163423.91884-1-slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Bulgarian translation update (Alexander)
* RTC and PC refactorings (Hervé, Philippe, Sergio)
* RTC fix (Marcelo)
* Mor

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Bulgarian translation update (Alexander)
* RTC and PC refactorings (Hervé, Philippe, Sergio)
* RTC fix (Marcelo)
* More comprehensive MCE logging (Mario)
* x86 IGNNE implementation (Paolo)
* Microvm machine type (Sergio)
* Support for UMONITOR/UMWAIT/TPAUSE (Tao)
* Do not use %m in common code (Thomas)
* NoNonArchitecturalCoreSharing Hyper-V enlightenment (Vitaly)
* getpagesize cleanups (Wei)

# gpg: Signature made Sat 26 Oct 2019 14:39:56 BST
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (39 commits)
i386: implement IGNNE
target/i386: introduce cpu_set_fpus
target/i386: move FERR handling to target/i386
core: replace getpagesize() with qemu_real_host_page_size
audio: fix missing break
mc146818rtc: always register rtc to rtc list
mc146818rtc: Include mc146818rtc_regs.h directly in mc146818rtc.c
mc146818rtc: Move RTC_ISA_IRQ definition
mc146818rtc: move structure to header file
hw/i386/pc: Remove kvm_i386.h include
hw/i386/pc: Extract pc_i8259_create()
hw/i386/pc: Move gsi_state creation code
hw/i386/pc: Extract pc_gsi_create()
target/i386: Add support for save/load IA32_UMWAIT_CONTROL MSR
x86/cpu: Add support for UMONITOR/UMWAIT/TPAUSE
hw/timer/mc146818rtc: Only include qapi-commands-misc on I386
runstate: ignore exit request in finish migrate state
checkpatch: suggest qemu_real_host_page_size instead of getpagesize() or sysconf(_SC_PAGESIZE)
MAINTAINERS: add microvm related files
hw/i386: Introduce the microvm machine type
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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Merge commit 'df84f17' into HEAD

This merge fixes a semantic conflict with the trivial tree.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/i386: Introduce the microvm machine type

microvm is a machine type inspired by Firecracker and constructed
after its machine model.

It's a minimalist machine type without PCI nor ACPI support, d

hw/i386: Introduce the microvm machine type

microvm is a machine type inspired by Firecracker and constructed
after its machine model.

It's a minimalist machine type without PCI nor ACPI support, designed
for short-lived guests. microvm also establishes a baseline for
benchmarking and optimizing both QEMU and guest operating systems,
since it is optimized for both boot time and footprint.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>

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