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target/i386: fix exceptions for MOV to DR

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Use raise_exception_ra (without error code) when raising the illegal
opcode operation; raise #GP when setting bits 63:32 of DR6 or DR7.

Move helper_get_dr to sysemu/ since it is a privileged instruction
that is not needed on user-mode emulators.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-07-06 17:53:29 +02:00
parent acf23ffb58
commit 533883fd7e
7 changed files with 35 additions and 45 deletions
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2
target/i386/cpu.h
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@ -268,6 +268,8 @@ typedef enum X86Seg {
#define DR7_TYPE_IO_RW 0x2
#define DR7_TYPE_DATA_RW 0x3
#define DR_RESERVED_MASK 0xffffffff00000000ULL
#define PG_PRESENT_BIT 0
#define PG_RW_BIT 1
#define PG_USER_BIT 2