On 3/19/21 11:22 AM, Dave Hansen wrote:
On 3/19/21 10:42 AM, Kuppuswamy, Sathyanarayanan wrote:
@@ -4,6 +4,58 @@
#include
#include
+void tdcall(u64 leafid, struct tdcall_regs *regs)
+{
+ asm volatile(
+ /* RAX = leafid (TDCALL LEAF ID) */
+ " movq %0,
On 3/19/21 10:42 AM, Kuppuswamy, Sathyanarayanan wrote:
>>> @@ -4,6 +4,58 @@
>>> #include
>>> #include
>>> +void tdcall(u64 leafid, struct tdcall_regs *regs)
>>> +{
>>> + asm volatile(
>>> + /* RAX = leafid (TDCALL LEAF ID) */
>>> + " movq %0, %%rax;"
>>> +
Hi Sean,
Thanks for the review.
On 3/19/21 9:55 AM, Sean Christopherson wrote:
On Thu, Mar 18, 2021, Kuppuswamy Sathyanarayanan wrote:
diff --git a/arch/x86/kernel/tdx.c b/arch/x86/kernel/tdx.c
index e44e55d1e519..7ae1d25e272b 100644
--- a/arch/x86/kernel/tdx.c
+++ b/arch/x86/kernel/tdx.c
@@
On Thu, Mar 18, 2021, Kuppuswamy Sathyanarayanan wrote:
> diff --git a/arch/x86/kernel/tdx.c b/arch/x86/kernel/tdx.c
> index e44e55d1e519..7ae1d25e272b 100644
> --- a/arch/x86/kernel/tdx.c
> +++ b/arch/x86/kernel/tdx.c
> @@ -4,6 +4,58 @@
> #include
> #include
>
> +void tdcall(u64 leafid,
Implement common helper functions to communicate with
the TDX Module and VMM (using TDCALL instruction).
tdvmcall() function can be used to request services
from VMM.
tdcall() function can be used to communicate with the
TDX Module.
Using common helper functions makes the code more readable
and
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