drivers/intel/fsp2_0: Fix running on x86_64

Add new Kconfig symbols to mark FSP binary as x86_32.
Fix the FSP headers and replace void pointers by fixed sized integers
depending on the used mode to compile the FSP.
This issue has been reported here:
https://github.com/intel/FSP/issues/59

This is necessary to run on x86_64, as pointers have different size.

Add preprocessor error to warn that x86_64 FSP isn't supported by the
current code.

Tested on Intel Skylake. FSP-M no longer returns the error "Invalid
Parameter".

Change-Id: I6015005c4ee3fc2f361985cf8cff896bcefd04fb
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48174
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Patrick Rudolph
2020-11-30 15:50:06 +01:00
committed by Patrick Georgi
parent 37cae54034
commit 31218a4259
16 changed files with 109 additions and 52 deletions

View File

@ -35,11 +35,15 @@ typedef struct __packed {
_Static_assert(sizeof(FSP_UPD_HEADER) == 32, "FSP_UPD_HEADER not packed");
#if CONFIG(PLATFORM_USES_FSP2_X86_32)
typedef struct __packed {
uint8_t Revision;
uint8_t Reserved[3];
void *NvsBufferPtr;
void *StackBase;
/* Note: This ought to be void*, but that won't allow calling this binary on x86_64. */
uint32_t NvsBufferPtr;
/* Note: This ought to be void*, but that won't allow calling this binary on x86_64. */
uint32_t StackBase;
uint32_t StackSize;
uint32_t BootLoaderTolumSize;
uint32_t BootMode;
@ -47,5 +51,8 @@ typedef struct __packed {
} FSPM_ARCH_UPD;
_Static_assert(sizeof(FSPM_ARCH_UPD) == 32, "FSPM_ARCH_UPD not packed");
#else
#error You need to implement this struct for x86_64 FSP
#endif
#endif /* FSP_H_C99_H */

View File

@ -35,11 +35,14 @@ typedef struct __packed {
_Static_assert(sizeof(FSP_UPD_HEADER) == 32, "FSP_UPD_HEADER not packed");
#if CONFIG(PLATFORM_USES_FSP2_X86_32)
typedef struct __packed {
uint8_t Revision;
uint8_t Reserved[3];
void *NvsBufferPtr;
void *StackBase;
/* Note: This ought to be void*, but that won't allow calling this binary on x86_64. */
uint32_t NvsBufferPtr;
/* Note: This ought to be void*, but that won't allow calling this binary on x86_64. */
uint32_t StackBase;
uint32_t StackSize;
uint32_t BootLoaderTolumSize;
uint32_t BootMode;
@ -47,5 +50,8 @@ typedef struct __packed {
} FSPM_ARCH_UPD;
_Static_assert(sizeof(FSPM_ARCH_UPD) == 32, "FSPM_ARCH_UPD not packed");
#else
#error You need to implement this struct for x86_64 FSP
#endif
#endif /* FSP_H_C99_H */

View File

@ -50,6 +50,7 @@ typedef struct {
UINT8 Reserved[23];
} FSP_UPD_HEADER;
#if CONFIG(PLATFORM_USES_FSP2_X86_32)
///
/// FSPM_ARCH_UPD Configuration.
///
@ -63,12 +64,16 @@ typedef struct {
/// Pointer to the non-volatile storage (NVS) data buffer.
/// If it is NULL it indicates the NVS data is not available.
///
VOID *NvsBufferPtr;
/// Note: This ought to be VOID*, but that won't allow calling this binary on x86_64.
///
UINT32 NvsBufferPtr;
///
/// Pointer to the temporary stack base address to be
/// consumed inside FspMemoryInit() API.
///
VOID *StackBase;
/// Note: This ought to be VOID*, but that won't allow calling this binary on x86_64.
///
UINT32 StackBase;
///
/// Temporary stack size to be consumed inside
/// FspMemoryInit() API.
@ -85,6 +90,9 @@ typedef struct {
UINT32 BootMode;
UINT8 Reserved1[8];
} FSPM_ARCH_UPD;
#else
#error You need to implement this struct for x86_64 FSP
#endif
///
/// FSPT_UPD_COMMON Configuration.

View File

@ -50,6 +50,7 @@ typedef struct {
UINT8 Reserved[23];
} FSP_UPD_HEADER;
#if CONFIG(PLATFORM_USES_FSP2_X86_32)
///
/// FSPM_ARCH_UPD Configuration.
///
@ -63,12 +64,16 @@ typedef struct {
/// Pointer to the non-volatile storage (NVS) data buffer.
/// If it is NULL it indicates the NVS data is not available.
///
VOID *NvsBufferPtr;
/// Note: This ought to be VOID*, but that won't allow calling this binary on x86_64.
///
UINT32 NvsBufferPtr;
///
/// Pointer to the temporary stack base address to be
/// consumed inside FspMemoryInit() API.
///
VOID *StackBase;
/// Note: This ought to be VOID*, but that won't allow calling this binary on x86_64.
///
UINT32 StackBase;
///
/// Temporary stack size to be consumed inside
/// FspMemoryInit() API.
@ -85,6 +90,9 @@ typedef struct {
UINT32 BootMode;
UINT8 Reserved1[8];
} FSPM_ARCH_UPD;
#else
#error You need to implement this struct for x86_64 FSP
#endif
///
/// FSPT_UPD_COMMON Configuration.

View File

@ -128,6 +128,7 @@ typedef struct {
UINT8 Reserved1[20];
} FSPT_ARCH_UPD;
#if CONFIG(PLATFORM_USES_FSP2_X86_32)
///
/// FSPM_ARCH_UPD Configuration.
///
@ -141,12 +142,16 @@ typedef struct {
/// Pointer to the non-volatile storage (NVS) data buffer.
/// If it is NULL it indicates the NVS data is not available.
///
VOID *NvsBufferPtr;
/// Note: This ought to be VOID*, but that won't allow calling this binary on x86_64.
///
UINT32 NvsBufferPtr;
///
/// Pointer to the temporary stack base address to be
/// consumed inside FspMemoryInit() API.
///
VOID *StackBase;
/// Note: This ought to be VOID*, but that won't allow calling this binary on x86_64.
///
UINT32 StackBase;
///
/// Temporary stack size to be consumed inside
/// FspMemoryInit() API.
@ -165,9 +170,14 @@ typedef struct {
/// Optional event handler for the bootloader to be informed of events occurring during FSP execution.
/// This value is only valid if Revision is >= 2.
///
FSP_EVENT_HANDLER *FspEventHandler;
/// Note: This ought to be FSP_EVENT_HANDLER*, but that won't allow calling this binary on x86_64.
///
UINT32 FspEventHandler;
UINT8 Reserved1[4];
} FSPM_ARCH_UPD;
#else
#error You need to implement this struct for x86_64 FSP
#endif
typedef struct {
///