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| author | Lara Lazier <laramglazier@gmail.com> | 2021-06-16 14:39:06 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-16 15:02:40 +0200 |
| commit | 498df2a7470e09d6cb0204f45eeb30d7ae796465 (patch) | |
| tree | e4a300fa50d9589d9a0a9b92bc88a3c30639cef8 /target/i386/cpu.h | |
| parent | 7eb54ca95d369135f2570c10daf1a41a1f8a6b9c (diff) | |
target/i386: Added consistency checks for CR0
The combination of unset CD and set NW bit in CR0 is illegal.
CR0[63:32] are also reserved and need to be zero.
(AMD64 Architecture Programmer's Manual, V2, 15.5)
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210616123907.17765-4-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/cpu.h')
| -rw-r--r-- | target/i386/cpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 64b4e46731..1e11071d81 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -224,6 +224,8 @@ typedef enum X86Seg { #define CR0_NE_MASK (1U << 5) #define CR0_WP_MASK (1U << 16) #define CR0_AM_MASK (1U << 18) +#define CR0_NW_MASK (1U << 29) +#define CR0_CD_MASK (1U << 30) #define CR0_PG_MASK (1U << 31) #define CR4_VME_MASK (1U << 0) |