On Fri, Feb 11, 2022 at 12:42:11PM +0100, Jan Beulich wrote:
> On 11.02.2022 12:19, Roger Pau Monné wrote:
> > On Fri, Feb 11, 2022 at 11:50:46AM +0100, Jan Beulich wrote:
> >> On 11.02.2022 11:47, Roger Pau Monné wrote:
> >>> On Fri, Feb 11, 2022 at 11:32:45AM +0100, Jan Beulich wrote:
> On 1
On 2/11/22 11:34, Jan Beulich wrote:
> On 11.02.2022 08:23, Norbert Manthey wrote:
>> --- a/xen/arch/x86/cpuid.c
>> +++ b/xen/arch/x86/cpuid.c
>> @@ -609,7 +609,7 @@ void __init init_guest_cpuid(void)
>> bool recheck_cpu_features(unsigned int cpu)
>> {
>> bool okay = true;
>> -struct cpu
On 11.02.2022 12:19, Roger Pau Monné wrote:
> On Fri, Feb 11, 2022 at 11:50:46AM +0100, Jan Beulich wrote:
>> On 11.02.2022 11:47, Roger Pau Monné wrote:
>>> On Fri, Feb 11, 2022 at 11:32:45AM +0100, Jan Beulich wrote:
On 11.02.2022 10:02, Roger Pau Monné wrote:
> On Fri, Feb 11, 2022 at 0
On Fri, Feb 11, 2022 at 11:50:46AM +0100, Jan Beulich wrote:
> On 11.02.2022 11:47, Roger Pau Monné wrote:
> > On Fri, Feb 11, 2022 at 11:32:45AM +0100, Jan Beulich wrote:
> >> On 11.02.2022 10:02, Roger Pau Monné wrote:
> >>> On Fri, Feb 11, 2022 at 08:23:27AM +0100, Norbert Manthey wrote:
>
On 11.02.2022 11:47, Roger Pau Monné wrote:
> On Fri, Feb 11, 2022 at 11:32:45AM +0100, Jan Beulich wrote:
>> On 11.02.2022 10:02, Roger Pau Monné wrote:
>>> On Fri, Feb 11, 2022 at 08:23:27AM +0100, Norbert Manthey wrote:
When re-identifying CPU data, we might use uninitialized data when
On Fri, Feb 11, 2022 at 11:32:45AM +0100, Jan Beulich wrote:
> On 11.02.2022 10:02, Roger Pau Monné wrote:
> > On Fri, Feb 11, 2022 at 08:23:27AM +0100, Norbert Manthey wrote:
> >> When re-identifying CPU data, we might use uninitialized data when
> >> checking for the cache line property to adapt
On 11.02.2022 08:23, Norbert Manthey wrote:
> --- a/xen/arch/x86/cpuid.c
> +++ b/xen/arch/x86/cpuid.c
> @@ -609,7 +609,7 @@ void __init init_guest_cpuid(void)
> bool recheck_cpu_features(unsigned int cpu)
> {
> bool okay = true;
> -struct cpuinfo_x86 c;
> +struct cpuinfo_x86 c = boot
On 11.02.2022 10:02, Roger Pau Monné wrote:
> On Fri, Feb 11, 2022 at 08:23:27AM +0100, Norbert Manthey wrote:
>> When re-identifying CPU data, we might use uninitialized data when
>> checking for the cache line property to adapt the cache
>> alignment. The data that depends on this uninitialized r
On Fri, Feb 11, 2022 at 08:23:27AM +0100, Norbert Manthey wrote:
> When re-identifying CPU data, we might use uninitialized data when
> checking for the cache line property to adapt the cache
> alignment. The data that depends on this uninitialized read is
> currently not forwarded.
>
> To avoid p
When re-identifying CPU data, we might use uninitialized data when
checking for the cache line property to adapt the cache
alignment. The data that depends on this uninitialized read is
currently not forwarded.
To avoid problems in the future, initialize the data cpuinfo
structure before re-identi
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