On Sat, 25 Jan 2014, Andi Kleen wrote:
> On Sat, Jan 25, 2014 at 02:35:58PM -0200, Henrique de Moraes Holschuh wrote:
> > On Fri, 24 Jan 2014, Andi Kleen wrote:
> > > For testing purposes it can be useful to downgrade microcode.
> > > Normally the driver only allows upgrading.
> >
> > The code is
On Sat, 25 Jan 2014, Andi Kleen wrote:
On Sat, Jan 25, 2014 at 02:35:58PM -0200, Henrique de Moraes Holschuh wrote:
On Fri, 24 Jan 2014, Andi Kleen wrote:
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
The code is not prepared
On Sat, Jan 25, 2014 at 02:35:58PM -0200, Henrique de Moraes Holschuh wrote:
> On Fri, 24 Jan 2014, Andi Kleen wrote:
> > For testing purposes it can be useful to downgrade microcode.
> > Normally the driver only allows upgrading.
>
> The code is not prepared to work correctly when downgrading is
On Fri, 24 Jan 2014, Andi Kleen wrote:
> For testing purposes it can be useful to downgrade microcode.
> Normally the driver only allows upgrading.
The code is not prepared to work correctly when downgrading is allowed, in
the presence of shadowed microcode. When a firmware request results in
On Fri, 24 Jan 2014, Andi Kleen wrote:
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
The code is not prepared to work correctly when downgrading is allowed, in
the presence of shadowed microcode. When a firmware request results in more
On Sat, Jan 25, 2014 at 02:35:58PM -0200, Henrique de Moraes Holschuh wrote:
On Fri, 24 Jan 2014, Andi Kleen wrote:
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
The code is not prepared to work correctly when downgrading is
From: Andi Kleen
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
Add a module_param (default off) that allows downgrading.
Note the module_param can currently not be set for early
ucode update, only for late.
Signed-off-by: Andi Kleen
From: Andi Kleen a...@linux.intel.com
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
Add a module_param (default off) that allows downgrading.
Note the module_param can currently not be set for early
ucode update, only for late.
On Fri, 13 Dec 2013, Henrique de Moraes Holschuh wrote:
> 2. This change has unintended side-effects that ought to be at least
> documented:
>
> In "allow downgrade" mode, should you send a microcode pack with several
> microcodes to the kernel, and more than one of them might apply to the
>
On Fri, 13 Dec 2013, Henrique de Moraes Holschuh wrote:
2. This change has unintended side-effects that ought to be at least
documented:
In allow downgrade mode, should you send a microcode pack with several
microcodes to the kernel, and more than one of them might apply to the
running
On Fri, 06 Dec 2013, Andi Kleen wrote:
> For testing purposes it can be useful to downgrade microcode.
> Normally the driver only allows upgrading.
...
> int
> update_match_revision(struct microcode_header_intel *mc_header, int rev)
> {
> + if (allow_downgrade)
> + return 1;
>
On Fri, 06 Dec 2013, Andi Kleen wrote:
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
...
int
update_match_revision(struct microcode_header_intel *mc_header, int rev)
{
+ if (allow_downgrade)
+ return 1;
From: Andi Kleen
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
Add a module_param (default off) that allows downgrading.
Note the module_param can currently not be set for early
ucode update, only for late.
Signed-off-by: Andi Kleen
From: Andi Kleen a...@linux.intel.com
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
Add a module_param (default off) that allows downgrading.
Note the module_param can currently not be set for early
ucode update, only for late.
From: Andi Kleen
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
Add a module_param (default off) that allows downgrading.
Note the module_param can currently not be set for early
ucode update, only for late.
Signed-off-by: Andi Kleen
From: Andi Kleen a...@linux.intel.com
For testing purposes it can be useful to downgrade microcode.
Normally the driver only allows upgrading.
Add a module_param (default off) that allows downgrading.
Note the module_param can currently not be set for early
ucode update, only for late.
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