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qemu/target/i386/hvf
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Alexander Graf bac969ef30 hvf: Simplify post reset/init/loadvm hooks 
The hooks we have that call us after reset, init and loadvm really all
just want to say "The reference of all register state is in the QEMU
vcpu struct, please push it".

We already have a working pushing mechanism though called cpu->vcpu_dirty,
so we can just reuse that for all of the above, syncing state properly the
next time we actually execute a vCPU.

This fixes PSCI resets on ARM, as they modify CPU state even after the
post init call has completed, but before we execute the vCPU again.

To also make the scheme work for x86, we have to make sure we don't
move stale eflags into our env when the vcpu state is dirty.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Tested-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20210519202253.76782-13-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-06-03 16:43:27 +01:00
..
hvf-cpu.c i386: split cpu accelerators from cpu.c, using AccelCPUClass 2021-05-10 15:41:49 -04:00
hvf-i386.h hvf: Move hvf internal definitions into common header 2021-06-03 16:43:26 +01:00
hvf.c hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
meson.build hvf: Move vcpu thread functions into common directory 2021-06-03 16:43:26 +01:00
panic.h x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
README.md i386: Compile CPUX86State xsave_buf only when support KVM or HVF 2018-10-02 19:09:12 +02:00
vmcs.h Clean up ill-advised or unusual header guards 2019-05-13 08:58:55 +02:00
vmx.h hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
x86_cpuid.c hvf: Guard xgetbv call 2021-02-16 17:15:39 +01:00
x86_decode.c x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
x86_decode.h x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
x86_descr.c hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
x86_descr.h x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
x86_emu.c hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
x86_emu.h x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
x86_flags.c x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
x86_flags.h x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
x86_mmu.c hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
x86_mmu.h x86 hvf cpus: Fix Lesser GPL version number 2020-11-15 16:45:27 +01:00
x86_task.c hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
x86_task.h Clean up header guards that don't match their file name 2019-05-13 08:58:55 +02:00
x86.c hvf: Introduce hvf vcpu struct 2021-06-03 16:43:27 +01:00
x86.h hvf: Fix segment selector format 2020-11-18 09:32:17 +01:00
x86hvf.c hvf: Simplify post reset/init/loadvm hooks 2021-06-03 16:43:27 +01:00
x86hvf.h hvf: Move cpu functions into common directory 2021-06-03 16:43:26 +01:00

README.md

OS X Hypervisor.framework support in QEMU

These sources (and ../hvf-all.c) are adapted from Veertu Inc's vdhh (Veertu Desktop Hosted Hypervisor) (last known location: https://github.com/veertuinc/vdhh) with some minor changes, the most significant of which were:

  1. Adapt to our current QEMU's CPUState structure and address_space_rw API; many struct members have been moved around (emulated x86 state, xsave_buf) due to historical differences + QEMU needing to handle more emulation targets.
  2. Removal of apic_page and hyperv-related functionality.
  3. More relaxed use of qemu_mutex_lock_iothread.