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Merge changes from topic "mp/ras_refactoring" into integration

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* changes:
  fix(debug): decouple "get_el_str()" from backtrace
  fix(bl31): harden check in delegate_async_ea
This commit is contained in:
Manish Pandey 2022-11-10 17:22:39 +01:00 • committed by TrustedFirmware Code Review
commit 680b7aa9c0
5 changed files with 18 additions and 35 deletions
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21
bl31/aarch64/ea_delegate.S
View file

@ -195,23 +195,30 @@ endfunc delegate_sync_ea
*/
func delegate_async_ea
#if RAS_EXTENSION
/* Check Exception Class to ensure SError, as this function should
* only be invoked for SError. If that is not the case, which implies
* either an HW error or programming error, panic.
*/
ubfx x2, x1, #ESR_EC_SHIFT, #ESR_EC_LENGTH
cmp x2, EC_SERROR
b.ne do_panic
/*
* Check for Implementation Defined Syndrome. If so, skip checking
* Uncontainable error type from the syndrome as the format is unknown.
*/
tbnz x1, #SERROR_IDS_BIT, 1f
/* AET only valid when DFSC is 0x11 */
ubfx x2, x1, #EABORT_DFSC_SHIFT, #EABORT_DFSC_WIDTH
cmp x2, #DFSC_SERROR
b.ne 1f
/*
* Check for Uncontainable error type. If so, route to the platform
* fatal error handler rather than the generic EA one.
*/
ubfx x2, x1, #EABORT_AET_SHIFT, #EABORT_AET_WIDTH
cmp x2, #ERROR_STATUS_UET_UC
b.ne 1f
/* Check DFSC for SError type */
ubfx x3, x1, #EABORT_DFSC_SHIFT, #EABORT_DFSC_WIDTH
cmp x3, #DFSC_SERROR
ubfx x3, x1, #EABORT_AET_SHIFT, #EABORT_AET_WIDTH
cmp x3, #ERROR_STATUS_UET_UC
b.ne 1f
no_ret plat_handle_uncontainable_ea

11
common/backtrace/backtrace.c
View file

@ -54,17 +54,6 @@ static inline uintptr_t extract_address(uintptr_t address)
return ret;
}
const char *get_el_str(unsigned int el)
{
if (el == 3U) {
return "EL3";
} else if (el == 2U) {
return "EL2";
} else {
return "S-EL1";
}
}
/*
* Returns true if the address points to a virtual address that can be read at
* the current EL, false otherwise.

3
include/common/debug.h
View file

@ -91,9 +91,10 @@
# define VERBOSE(...) no_tf_log(LOG_MARKER_VERBOSE __VA_ARGS__)
#endif
const char *get_el_str(unsigned int el);
#if ENABLE_BACKTRACE
void backtrace(const char *cookie);
const char *get_el_str(unsigned int el);
#else
#define backtrace(x)
#endif

6
plat/common/aarch64/plat_common.c
View file

@ -67,17 +67,15 @@ int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
}
#endif
#if !ENABLE_BACKTRACE
static const char *get_el_str(unsigned int el)
const char *get_el_str(unsigned int el)
{
if (el == MODE_EL3) {
return "EL3";
} else if (el == MODE_EL2) {
return "EL2";
}
return "S-EL1";
return "EL1";
}
#endif /* !ENABLE_BACKTRACE */
/* RAS functions common to AArch64 ARM platforms */
void plat_default_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,

12
plat/marvell/armada/a3k/common/a3700_ea.c
View file

@ -16,18 +16,6 @@
#define A53_SERR_INT_AXI_SLVERR_ON_EXTERNAL_ACCESS 0xbf000002
#if !ENABLE_BACKTRACE
static const char *get_el_str(unsigned int el)
{
if (el == MODE_EL3) {
return "EL3";
} else if (el == MODE_EL2) {
return "EL2";
}
return "S-EL1";
}
#endif /* !ENABLE_BACKTRACE */
/*
* This source file with custom plat_ea_handler function is compiled only when
* building TF-A with compile option HANDLE_EA_EL3_FIRST=1