On 15/07/2019 07:54, Jan Beulich wrote:
> On 15.07.2019 07:05, Zhenzhong Duan wrote:
>> On 2019/7/12 22:06, Andrew Cooper wrote:
>>> On 11/07/2019 03:15, Zhenzhong Duan wrote:
Commit 7457c0da024b ("x86/alternatives: Add int3_emulate_call()
selftest") is used to ensure there is a gap
On 15.07.2019 07:05, Zhenzhong Duan wrote:
>
> On 2019/7/12 22:06, Andrew Cooper wrote:
>> On 11/07/2019 03:15, Zhenzhong Duan wrote:
>>> Commit 7457c0da024b ("x86/alternatives: Add int3_emulate_call()
>>> selftest") is used to ensure there is a gap setup in exception stack
>>> which could be
On 2019/7/12 22:06, Andrew Cooper wrote:
On 11/07/2019 03:15, Zhenzhong Duan wrote:
Commit 7457c0da024b ("x86/alternatives: Add int3_emulate_call()
selftest") is used to ensure there is a gap setup in exception stack
which could be used for inserting call return address.
This gap is missed
On 11/07/2019 03:15, Zhenzhong Duan wrote:
> Commit 7457c0da024b ("x86/alternatives: Add int3_emulate_call()
> selftest") is used to ensure there is a gap setup in exception stack
> which could be used for inserting call return address.
>
> This gap is missed in XEN PV int3 exception entry path,
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