Re: [RFC PATCH v2 3/7] arm64: alternative: Apply alternatives early in boot process

2015-09-17 Thread Will Deacon
On Thu, Sep 17, 2015 at 04:28:11PM +0100, Daniel Thompson wrote: > On 17/09/15 15:01, Will Deacon wrote: > > Sorry, I'm thinking slightly ahead of myself, but the series from Suzuki > > creates a shadow "safe" view of the ID registers in the system, > > corresponding to the intersection of CPU feat

Re: [RFC PATCH v2 3/7] arm64: alternative: Apply alternatives early in boot process

2015-09-17 Thread Daniel Thompson
On 17/09/15 15:01, Will Deacon wrote: On Thu, Sep 17, 2015 at 02:25:56PM +0100, Daniel Thompson wrote: On 16/09/15 17:24, Will Deacon wrote: On Wed, Sep 16, 2015 at 04:51:12PM +0100, Daniel Thompson wrote: On 16/09/15 14:05, Will Deacon wrote: On Mon, Sep 14, 2015 at 02:26:17PM +0100, Daniel

Re: [RFC PATCH v2 3/7] arm64: alternative: Apply alternatives early in boot process

2015-09-17 Thread Will Deacon
On Thu, Sep 17, 2015 at 02:25:56PM +0100, Daniel Thompson wrote: > On 16/09/15 17:24, Will Deacon wrote: > > On Wed, Sep 16, 2015 at 04:51:12PM +0100, Daniel Thompson wrote: > >> On 16/09/15 14:05, Will Deacon wrote: > >>> On Mon, Sep 14, 2015 at 02:26:17PM +0100, Daniel Thompson wrote: > /

Re: [RFC PATCH v2 3/7] arm64: alternative: Apply alternatives early in boot process

2015-09-17 Thread Daniel Thompson
On 16/09/15 17:24, Will Deacon wrote: On Wed, Sep 16, 2015 at 04:51:12PM +0100, Daniel Thompson wrote: On 16/09/15 14:05, Will Deacon wrote: On Mon, Sep 14, 2015 at 02:26:17PM +0100, Daniel Thompson wrote: Currently alternatives are applied very late in the boot process (and a long time after

Re: [RFC PATCH v2 3/7] arm64: alternative: Apply alternatives early in boot process

2015-09-16 Thread Will Deacon
On Wed, Sep 16, 2015 at 04:51:12PM +0100, Daniel Thompson wrote: > On 16/09/15 14:05, Will Deacon wrote: > > On Mon, Sep 14, 2015 at 02:26:17PM +0100, Daniel Thompson wrote: > >> Currently alternatives are applied very late in the boot process (and > >> a long time after we enable scheduling). Some

Re: [RFC PATCH v2 3/7] arm64: alternative: Apply alternatives early in boot process

2015-09-16 Thread Daniel Thompson
On 16/09/15 14:05, Will Deacon wrote: On Mon, Sep 14, 2015 at 02:26:17PM +0100, Daniel Thompson wrote: Currently alternatives are applied very late in the boot process (and a long time after we enable scheduling). Some alternative sequences, such as those that alter the way CPU context is stored

Re: [RFC PATCH v2 3/7] arm64: alternative: Apply alternatives early in boot process

2015-09-16 Thread Will Deacon
On Mon, Sep 14, 2015 at 02:26:17PM +0100, Daniel Thompson wrote: > Currently alternatives are applied very late in the boot process (and > a long time after we enable scheduling). Some alternative sequences, > such as those that alter the way CPU context is stored, must be applied > much earlier in