Re: [SeaBIOS] A20: ahci_process_op is called with A20 off

2017-05-12 Thread Xu, Anthony
> -Original Message- > From: Paolo Bonzini [mailto:pbonz...@redhat.com] > Sent: Friday, May 12, 2017 9:29 AM > To: Kevin O'Connor ; Xu, Anthony > > Cc: seabios@seabios.org; kra...@redhat.com; stefa...@gmail.com; Zhong, > Yang

Re: [SeaBIOS] A20: ahci_process_op is called with A20 off

2017-05-12 Thread Kevin O'Connor
On Fri, May 12, 2017 at 06:29:19PM +0200, Paolo Bonzini wrote: > On 12/05/2017 18:26, Kevin O'Connor wrote: > > On Thu, May 11, 2017 at 11:22:02PM +, Xu, Anthony wrote: > >>> SeaBIOS has a couple of different methods to accomplish this mode > >>> switching - it can directly switch modes

Re: [SeaBIOS] A20: ahci_process_op is called with A20 off

2017-05-12 Thread Paolo Bonzini
On 12/05/2017 18:26, Kevin O'Connor wrote: > On Thu, May 11, 2017 at 11:22:02PM +, Xu, Anthony wrote: >>> SeaBIOS has a couple of different methods to accomplish this mode >>> switching - it can directly switch modes (C16_BIG switch) or it can >>> use a helper in SMM mode to perform the

Re: [SeaBIOS] A20: ahci_process_op is called with A20 off

2017-05-12 Thread Kevin O'Connor
On Thu, May 11, 2017 at 11:22:02PM +, Xu, Anthony wrote: > > SeaBIOS has a couple of different methods to accomplish this mode > > switching - it can directly switch modes (C16_BIG switch) or it can > > use a helper in SMM mode to perform the switch (C16_SMM). The > > preferred method is

Re: [SeaBIOS] A20: ahci_process_op is called with A20 off

2017-05-12 Thread Paolo Bonzini
On 12/05/2017 01:22, Xu, Anthony wrote: >> SeaBIOS has a couple of different methods to accomplish this mode >> switching - it can directly switch modes (C16_BIG switch) or it can >> use a helper in SMM mode to perform the switch (C16_SMM). The >> preferred method is C16_SMM as C16_BIG isn't