On 23.02.2024 13:18, Roger Pau Monné wrote:
> On Fri, Feb 23, 2024 at 11:43:14AM +0100, Jan Beulich wrote:
>> On 23.02.2024 10:19, Roger Pau Monné wrote:
>>> On Thu, Feb 22, 2024 at 05:55:00PM +0100, Jan Beulich wrote:
On 22.02.2024 17:44, Roger Pau Monne wrote:
> ---
On Fri, Feb 23, 2024 at 11:43:14AM +0100, Jan Beulich wrote:
> On 23.02.2024 10:19, Roger Pau Monné wrote:
> > On Thu, Feb 22, 2024 at 05:55:00PM +0100, Jan Beulich wrote:
> >> On 22.02.2024 17:44, Roger Pau Monne wrote:
> >>> --- a/xen/arch/x86/include/asm/alternative.h
> >>> +++
On 23.02.2024 10:19, Roger Pau Monné wrote:
> On Thu, Feb 22, 2024 at 05:55:00PM +0100, Jan Beulich wrote:
>> On 22.02.2024 17:44, Roger Pau Monne wrote:
>>> --- a/xen/arch/x86/include/asm/alternative.h
>>> +++ b/xen/arch/x86/include/asm/alternative.h
>>> @@ -167,9 +167,25 @@ extern void
On Thu, Feb 22, 2024 at 05:55:00PM +0100, Jan Beulich wrote:
> On 22.02.2024 17:44, Roger Pau Monne wrote:
> > --- a/xen/arch/x86/include/asm/alternative.h
> > +++ b/xen/arch/x86/include/asm/alternative.h
> > @@ -167,9 +167,25 @@ extern void alternative_branches(void);
> > #define ALT_CALL_arg5
On 22/02/2024 4:55 pm, Jan Beulich wrote:
> On 22.02.2024 17:44, Roger Pau Monne wrote:
>> --- a/xen/arch/x86/include/asm/alternative.h
>> +++ b/xen/arch/x86/include/asm/alternative.h
>> @@ -167,9 +167,25 @@ extern void alternative_branches(void);
>> #define ALT_CALL_arg5 "r8"
>> #define
On 22.02.2024 17:44, Roger Pau Monne wrote:
> --- a/xen/arch/x86/include/asm/alternative.h
> +++ b/xen/arch/x86/include/asm/alternative.h
> @@ -167,9 +167,25 @@ extern void alternative_branches(void);
> #define ALT_CALL_arg5 "r8"
> #define ALT_CALL_arg6 "r9"
>
> +#ifdef CONFIG_CC_IS_CLANG
>
The current code for alternative calls uses the caller parameter types as the
types for the register variables that serve as function parameters:
uint8_t foo;
[...]
alternative_call(myfunc, foo);
Would expand roughly into:
register unint8_t a1_ asm("rdi") = foo;
register unsigned long a2_
