On 23.04.2024 12:27, Andrew Cooper wrote:
> On 23/04/2024 10:17 am, Jan Beulich wrote:
>> On 22.04.2024 20:14, Andrew Cooper wrote:
>>> --- /dev/null
>>> +++ b/xen/arch/x86/x86_emulate/decode-lite.c
>>> @@ -0,0 +1,245 @@
>>> +/* SPDX-License-Identifier: GPL-2.0-only */
>>> +
>>> +#include
On 23/04/2024 10:17 am, Jan Beulich wrote:
> On 22.04.2024 20:14, Andrew Cooper wrote:
>> --- /dev/null
>> +++ b/xen/arch/x86/x86_emulate/decode-lite.c
>> @@ -0,0 +1,245 @@
>> +/* SPDX-License-Identifier: GPL-2.0-only */
>> +
>> +#include "private.h"
>> +
>> +#define Imm8 (1 << 0)
>> +#define
On 22.04.2024 20:14, Andrew Cooper wrote:
> In order to relocate all IP-relative fields in an alternative replacement
> block, we need to decode the instructions enough to obtain their length and
> any relative fields.
>
> Full x86_decode() is far too heavyweight, so introduce a minimal form
In order to relocate all IP-relative fields in an alternative replacement
block, we need to decode the instructions enough to obtain their length and
any relative fields.
Full x86_decode() is far too heavyweight, so introduce a minimal form which
can make several simplifying assumptions.
This
