: BOOKE KVM calling load_up_fpu from C?
On 64-bit, though, there's a store to the caller's stack frame
(yuck) which the kvm/booke.h caller is not prepared for.
So if caller is using r12 then it can lead to come corruption,
right ?
No, r12 is a volatile register in the ABI, as is r9
-Original Message-
From: Michael Neuling [mailto:mi...@neuling.org]
Sent: Tuesday, February 12, 2013 9:46 AM
To: Bhushan Bharat-R65777
Cc: Wood Scott-B07421; linuxppc-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling load_up_fpu from C?
Bhushan Bharat-R65777 r65
: BOOKE KVM calling load_up_fpu from C?
Look further down...
#ifdef CONFIG_PPC32
mfspr r5,SPRN_SPRG_THREAD /* current
task's THREAD (phys) */
lwz r4,THREAD_FPEXC_MODE(r5)
ori r9,r9,MSR_FP /* enable FP for
current */
or r9,r9,r4
#else
ld r4
-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling load_up_fpu from C?
Bhushan Bharat-R65777 r65...@freescale.com wrote:
-Original Message-
From: Michael Neuling [mailto:mi...@neuling.org]
Sent: Tuesday, February 12, 2013 9:16 AM
To: Bhushan Bharat
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, February 13, 2013 12:03 AM
To: Bhushan Bharat-R65777
Cc: Michael Neuling; Wood Scott-B07421; linuxppc-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling load_up_fpu from C?
On 02/12/2013 03:01:07 AM, Bhushan Bharat
On 02/12/2013 07:18:14 PM, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, February 13, 2013 12:03 AM
To: Bhushan Bharat-R65777
Cc: Michael Neuling; Wood Scott-B07421;
linuxppc-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, February 13, 2013 6:53 AM
To: Bhushan Bharat-R65777
Cc: Wood Scott-B07421; Michael Neuling; linuxppc-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling load_up_fpu from C?
On 02/12/2013 07:18:14 PM, Bhushan Bharat
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, February 13, 2013 6:53 AM
To: Bhushan Bharat-R65777
Cc: Wood Scott-B07421; Michael Neuling; linuxppc-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling load_up_fpu from C?
On 02/12/2013 07:18:14 PM, Bhushan Bharat
-Original Message-
From: Linuxppc-dev [mailto:linuxppc-dev-
bounces+bharat.bhushan=freescale@lists.ozlabs.org] On Behalf Of Michael
Neuling
Sent: Tuesday, February 12, 2013 8:59 AM
To: Wood Scott-B07421
Cc: linuxppc-dev@lists.ozlabs.org
Subject: BOOKE KVM calling load_up_fpu
Bhushan Bharat-R65777 r65...@freescale.com wrote:
-Original Message-
From: Linuxppc-dev [mailto:linuxppc-dev-
bounces+bharat.bhushan=freescale@lists.ozlabs.org] On Behalf Of Michael
Neuling
Sent: Tuesday, February 12, 2013 8:59 AM
To: Wood Scott-B07421
Cc:
-Original Message-
From: Michael Neuling [mailto:mi...@neuling.org]
Sent: Tuesday, February 12, 2013 9:16 AM
To: Bhushan Bharat-R65777
Cc: Wood Scott-B07421; linuxppc-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling load_up_fpu from C?
Bhushan Bharat-R65777 r65
Bhushan Bharat-R65777 r65...@freescale.com wrote:
-Original Message-
From: Michael Neuling [mailto:mi...@neuling.org]
Sent: Tuesday, February 12, 2013 9:16 AM
To: Bhushan Bharat-R65777
Cc: Wood Scott-B07421; linuxppc-dev@lists.ozlabs.org
Subject: Re: BOOKE KVM calling
12 matches
Mail list logo
