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xemu/target/i386/hvf
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Roman Bolshakov 82695a1b9c i386: hvf: Move Guest LMA reset to macvm_set_cr0() 
The only useful purpose of hvf_reset_vcpu() is to clear "IA-32e mode
guest" (LMA) VM-Entry control. But it can be moved to macvm_set_cr0()
which is indirectly used by post-init and post-reset to flush emulator
state. That enables clean removal of hvf_reset_vcpu().

LMA is set only if IA32_EFER.LME = 1, according to Intel SDM "9.8.5
Initializing IA-32e Mode" and "9.8.5.4 Switching Out of IA-32e Mode
Operation", otherwise the entry control can be safely cleared.

Cc: Cameron Esfahani <dirty@apple.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200630102824.77604-7-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-10 18:02:19 -04:00
..
hvf-i386.h
i386: hvf: Move HVFState definition into hvf
2020-06-12 11:12:45 -04:00
hvf.c
i386: hvf: Move Guest LMA reset to macvm_set_cr0()
2020-07-10 18:02:19 -04:00
Makefile.objs
i386: hvf: move all hvf files in the same directory
2017-12-22 15:02:05 +01:00
panic.h
i386: hvf: cleanup x86_gen.h
2017-12-22 15:02:07 +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
i386: hvf: Move Guest LMA reset to macvm_set_cr0()
2020-07-10 18:02:19 -04:00
x86_cpuid.c
target/i386: drop the duplicated definition of cpuid AVX512_VBMI macro
2019-10-15 18:34:44 -03:00
x86_decode.c
i386: hvf: Drop copy of RFLAGS defines
2020-06-12 11:15:02 -04:00
x86_decode.h
hvf: correctly handle REX prefix in relation to legacy prefixes
2019-11-26 09:58:36 +01:00
x86_descr.c
i386: hvf: unify register enums between HVF and the rest
2017-12-22 15:02:07 +01:00
x86_descr.h
Normalize header guard symbol definition.
2019-05-13 08:58:55 +02:00
x86_emu.c
i386: hvf: Move mmio_buf into CPUX86State
2020-06-12 11:20:09 -04:00
x86_emu.h
Clean up ill-advised or unusual header guards
2019-05-13 08:58:55 +02:00
x86_flags.c
i386: hvf: Move lazy_flags into CPUX86State
2020-06-12 11:19:37 -04:00
x86_flags.h
Clean up ill-advised or unusual header guards
2019-05-13 08:58:55 +02:00
x86_mmu.c
Avoid address_space_rw() with a constant is_write argument
2020-02-20 14:47:08 +01:00
x86_mmu.h
Clean up ill-advised or unusual header guards
2019-05-13 08:58:55 +02:00
x86_task.c
i386: hvf: Drop copy of RFLAGS defines
2020-06-12 11:15:02 -04:00
x86_task.h
Clean up header guards that don't match their file name
2019-05-13 08:58:55 +02:00
x86.c
i386: hvf: Drop copy of RFLAGS defines
2020-06-12 11:15:02 -04:00
x86.h
i386: hvf: Drop HVFX86EmulatorState
2020-06-12 11:20:12 -04:00
x86hvf.c
i386: hvf: Drop rflags from HVFX86EmulatorState
2020-06-12 11:15:02 -04:00
x86hvf.h
i386: hvf: move all hvf files in the same directory
2017-12-22 15:02:05 +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.