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Author SHA1 Message Date
Matt Borgerson 1c7025faf6 hvf: Fixup get_reg_ref prototype 2019-07-04 00:04:00 -07:00
Matt Borgerson a1b119ce44 v4.0.0 release 
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Merge tag 'v4.0.0' into merge-v4.0.0

v4.0.0 release
 2019-07-03 22:58:05 -07:00
Roman Bolshakov b4e1af8961 i386: hvf: Fix register refs if REX is present 
According to Intel(R)64 and IA-32 Architectures Software Developer's
Manual, the following one-byte registers should be fetched when REX
prefix is present (sorted by reg encoding index):
AL, CL, DL, BL, SPL, BPL, SIL, DIL, R8L - R15L

The first 8 are fetched if REX.R is zero, the last 8 if non-zero.

The following registers should be fetched for instructions without REX
prefix (also sorted by reg encoding index):
AL, CL, DL, BL, AH, CH, DH, BH

Current emulation code doesn't handle accesses to SPL, BPL, SIL, DIL
when REX is present, thefore an instruction 40883e "mov %dil,(%rsi)" is
decoded as "mov %bh,(%rsi)".

That caused an infinite loop in vp_reset:
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg03293.html

Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20181018134401.44471-1-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2018-10-19 13:44:12 +02:00
espes 2911dda2dc initial i386 hvf 2018-09-27 10:37:48 +08:00
Haitao Shan 09d1d09697 Fix Mac Hypervisor Framework Crash Issue. The crash is caused by incorrect instruction emulation by QEMU hvf, which resulted in a ruined register that was not supposed to touch. 
+ copy it over to target/i386 as well (for latest QEMU version)

Change-Id: Ibdada114db8736560d41402d6af4042fc6e6c25b
 2018-09-27 09:57:12 +08:00
Paolo Bonzini ff2de1668c i386: hvf: remove addr_t 
Use target_ulong for virtual addresses and uint64_t for physical
addresses.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2017-12-22 15:02:07 +01:00
Paolo Bonzini 6701d81d74 i386: hvf: unify register enums between HVF and the rest 
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2017-12-22 15:02:07 +01:00
Paolo Bonzini f9fea77740 i386: hvf: header cleanup 
Remove inclusions of system headers and avoid "pragma once".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2017-12-22 15:02:07 +01:00
Paolo Bonzini 69e0a03c3f i386: hvf: move all hvf files in the same directory 
Just call it hvf/, no need for the "utils" suffix.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2017-12-22 15:02:05 +01:00