On 08/01/15 14:00, Jan Beulich wrote:
On 08.01.15 at 14:25, wrote:
>> do_debug() is capable of correctly dealing with #DB exceptions in guest
>> context, and indeed needs to be as the 'icebp' instruction skips the DPL
>> check anyway.
> I don't follow: ICEBP doesn't check DPL, right, but what
>>> On 08.01.15 at 14:25, wrote:
> do_debug() is capable of correctly dealing with #DB exceptions in guest
> context, and indeed needs to be as the 'icebp' instruction skips the DPL
> check anyway.
I don't follow: ICEBP doesn't check DPL, right, but what does setting
DPL to 3 buy us? Other than f
do_debug() is capable of correctly dealing with #DB exceptions in guest
context, and indeed needs to be as the 'icebp' instruction skips the DPL
check anyway.
Signed-off-by: Andrew Cooper
CC: Jan Beulich
CC: Keir Fraser
CC: Tim Deegan
---
xen/arch/x86/traps.c |2 +-
1 file changed, 1 inse
