On 05.02.2025 11:04, Jürgen Groß wrote:
> On 05.02.25 10:38, Andrew Cooper wrote:
>> On 05/02/2025 9:17 am, Jürgen Groß wrote:
>>> On 05.02.25 10:16, Andrew Cooper wrote:
On 05/02/2025 9:10 am, Juergen Gross wrote:
> xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
>>>
On 05.02.25 10:54, Jan Beulich wrote:
On 05.02.2025 10:10, Juergen Gross wrote:
xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
most only once during early boot, is clobbering %rbx. Depending on
whether the caller relies on %rbx to be preserved across the call or
not, this
On 05.02.25 10:38, Andrew Cooper wrote:
On 05/02/2025 9:17 am, Jürgen Groß wrote:
On 05.02.25 10:16, Andrew Cooper wrote:
On 05/02/2025 9:10 am, Juergen Gross wrote:
xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
most only once during early boot, is clobbering %rbx. Depe
On 05.02.2025 10:10, Juergen Gross wrote:
> xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
> most only once during early boot, is clobbering %rbx. Depending on
> whether the caller relies on %rbx to be preserved across the call or
> not, this clobbering might result in an ear
On 05/02/2025 9:17 am, Jürgen Groß wrote:
> On 05.02.25 10:16, Andrew Cooper wrote:
>> On 05/02/2025 9:10 am, Juergen Gross wrote:
>>> xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
>>> most only once during early boot, is clobbering %rbx. Depending on
>>> whether the caller
On 05.02.25 10:16, Andrew Cooper wrote:
On 05/02/2025 9:10 am, Juergen Gross wrote:
xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
most only once during early boot, is clobbering %rbx. Depending on
whether the caller relies on %rbx to be preserved across the call or
not, t
On 05/02/2025 9:10 am, Juergen Gross wrote:
> xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
> most only once during early boot, is clobbering %rbx. Depending on
> whether the caller relies on %rbx to be preserved across the call or
> not, this clobbering might result in an e
xen_hypercall_hvm(), which is used when running as a Xen PVH guest at
most only once during early boot, is clobbering %rbx. Depending on
whether the caller relies on %rbx to be preserved across the call or
not, this clobbering might result in an early crash of the system.
This can be avoided by no
