This just unifies the decompression tdx-related code with the rest
of the code which invokes tdx hypercalls. No functional changes.
Signed-off-by: Nikolay Borisov <[email protected]>
---
arch/x86/boot/compressed/tdx.c | 4 ++--
arch/x86/coco/tdx/tdx.c | 11 -----------
arch/x86/include/asm/shared/tdx.h | 11 +++++++++++
3 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/arch/x86/boot/compressed/tdx.c b/arch/x86/boot/compressed/tdx.c
index 2d81d3cc72a1..8841b945a1e2 100644
--- a/arch/x86/boot/compressed/tdx.c
+++ b/arch/x86/boot/compressed/tdx.c
@@ -20,7 +20,7 @@ static inline unsigned int tdx_io_in(int size, u16 port)
{
struct tdx_hypercall_args args = {
.r10 = TDX_HYPERCALL_STANDARD,
- .r11 = EXIT_REASON_IO_INSTRUCTION,
+ .r11 = hcall_func(EXIT_REASON_IO_INSTRUCTION),
.r12 = size,
.r13 = 0,
.r14 = port,
@@ -36,7 +36,7 @@ static inline void tdx_io_out(int size, u16 port, u32 value)
{
struct tdx_hypercall_args args = {
.r10 = TDX_HYPERCALL_STANDARD,
- .r11 = EXIT_REASON_IO_INSTRUCTION,
+ .r11 = hcall_func(EXIT_REASON_IO_INSTRUCTION),
.r12 = size,
.r13 = 1,
.r14 = port,
diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c
index e146b599260f..15569bd32ed5 100644
--- a/arch/x86/coco/tdx/tdx.c
+++ b/arch/x86/coco/tdx/tdx.c
@@ -76,17 +76,6 @@ noinstr void __tdx_hypercall_failed(void)
panic("TDVMCALL failed. TDX module bug?");
}
-/*
- * The TDG.VP.VMCALL-Instruction-execution sub-functions are defined
- * independently from but are currently matched 1:1 with VMX EXIT_REASONs.
- * Reusing the KVM EXIT_REASON macros makes it easier to connect the host and
- * guest sides of these calls.
- */
-static __always_inline u64 hcall_func(u64 exit_reason)
-{
- return exit_reason;
-}
-
#ifdef CONFIG_KVM_GUEST
long tdx_kvm_hypercall(unsigned int nr, unsigned long p1, unsigned long p2,
unsigned long p3, unsigned long p4)
diff --git a/arch/x86/include/asm/shared/tdx.h b/arch/x86/include/asm/shared/tdx.h
index 2631e01f6e0f..b415a24f0d48 100644
--- a/arch/x86/include/asm/shared/tdx.h
+++ b/arch/x86/include/asm/shared/tdx.h
@@ -40,5 +40,16 @@ u64 __tdx_hypercall_ret(struct tdx_hypercall_args *args);
/* Called from __tdx_hypercall() for unrecoverable failure */
void __tdx_hypercall_failed(void);
+/*
+ * The TDG.VP.VMCALL-Instruction-execution sub-functions are defined
+ * independently from but are currently matched 1:1 with VMX EXIT_REASONs.
+ * Reusing the KVM EXIT_REASON macros makes it easier to connect the host and
+ * guest sides of these calls.
+ */
+static __always_inline u64 hcall_func(u64 exit_reason)
+{
+ return exit_reason;
+}
+
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_SHARED_TDX_H */
--
2.34.1
On Fri, May 05, 2023 at 03:03:32PM +0300, Nikolay Borisov wrote:
> This just unifies the decompression tdx-related code with the rest
> of the code which invokes tdx hypercalls. No functional changes.
Maybe s/tdx/TDX/g ?
> Signed-off-by: Nikolay Borisov <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
--
Kiryl Shutsemau / Kirill A. Shutemov